All Wiring Diagrams for Cadillac DeVille 2003

AIR CONDITIONING

Automatic A/C Wiring Diagram (1 of 2) for Cadillac DeVille 2003

List of elements for Automatic A/C Wiring Diagram (1 of 2) for Cadillac DeVille 2003:

inst panel
(body harn, 53.5 cm from c201)
(i/p harn, 65 cm from radio conn breakout)
(left front corner of engine) g100
A/c clu fuse 15a
A/c compressor clutch
A/c compressor clutch solenoid
A/c compressor temperature switch
A/c low temp
A/c refrigerant low temperature sensor (rear of engine compt, on a/c low pressure line)
A10
A11
A12
Ac clu relay
Acc
Air inlet act drv
Air inlet act sig
Air mix act drv
Air mix act sig
Air temperature actuator assembly (on right side of of hvac module)
Ambient air temperature sensor (on hood latch support)
Aux
Auxiliary air temperature sensor (under front console, near aux blower mtr)
B10
B11
Bat
Blwr spd cntrl
C11
Computer data lines system
Dash integration module (dim) (behind right side of dash, near blower motor)
Dim fuse 10a
Drvr air mix drv
Drvr air mix sig
G201 (under right front door sill trim plate)
Ground
Headlights system
Hot at all times
Hot in on
Hot in on or start
Hvac fuse 10a
Iat sens cntrl
Iat sens sig
Ign
Ign sw fuse 15a
Ignition switch
Inside air temperature sensor (behind left side of dash, left of steering column)
Instrument panel integration module (above radio)
Left air temperature actuator (on left side of hvac module)
Left sun load sensor
Lh sun load sens
Lock
Lower left air temperature sensor (under left side of dash, in a/c dash)
Lower right air temperature sensor (under right side of dash, in a/c duct)
Mode act drv
Mode act sig
Mode actuator (on left side of hvac module)
Nca
Pnk
Rear fuse block (under left rear seat)
Recirculation actuator (under right side of dash, right of blower motor)
Red
Rh sun load sens
Right
Right sun load sensor
Rr air mix act drv
Rr air mix act sig
S130
S205
S207 (i/p harn, 86.1 cm from
S213 (body harn, 73.2 cm from c200)
S215
Sensor return
Serial data 2
Splice pack sp201
Start
Steer whl ctrl
Sun load sensor assembly (at top center of dash, in defogger grille)
Tan
Temp sens input
Underhood fuse block (right side of engine compt)
Upper left air temperature sensor (under left side of dash, in a/c duct)
Upper right air temperature sensor (under right side of dash, in a/c duct)
Voltage sens

Automatic A/C Wiring Diagram (2 of 2) for Cadillac DeVille 2003

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List of elements for Automatic A/C Wiring Diagram (2 of 2) for Cadillac DeVille 2003:

(console harn, 68 cm from rear heater and a/c control module conn)
(dhs)
(dts)
(rear hvac harn, 17.5 cm from rear blower motor) s307
350(dhs)
450(dts)
A/c refrigerant pressure sensor (on a/c pressure hose, near compressor)
A/c relay
Auxiliary blower motor (front of center console, below ashtray)
Auxiliary blower motor resistor assembly (at front of center console)
Auxiliary hvac control module (at rear of center console)
Auxiliary mode actuator (under front console, near auxiliary blower motor)
B10
Bat
Battery
Blower motor
Blower motor control processor (under right side of dash, right of blower motor)
Blwr grd
Blwr sw high
Blwr sw low
Blwr sw m/h
Blwr sw med
Computer data lines system
Cool fan 1 fuse 30a
Cool fan 2 fuse 30a
Coolfan 1 relay
Coolfan 2 relay
Coolfan s/p relay
D10
D11
Dhs
Dts
E nca
E10
Ect sens grd
Ect sens sig
Engine coolant temperature (ect) sensor (right rear of engine, near egr valve)
F11
Fan
G nca
G104 (right front of engine compt)
G201
G201 (under right front door sill trim plate)
Grd
Ground
High spd fan
Hot at all times
Hot in run
Hvac blo fuse 40a
Ign
Ign 3 rr fuse 10a
Illum grd
Illumination
Inflatable restraint steering wheel module coil
Interior lights system
Left cooling fan
Low spd fan
Mem t&t fuse 10a
Nca
Pnk
Powertrain control module (pcm) (left side of engine compt, in air cleaner)
Radio fuse 2a
Rear fuse block (under left rear seat)
Red
Right cooling fan
Rr blo fuse 10a
Rr mode act
S300
S301 (dts) (console harn, 50.5 cm from c304)
Select
Sensor grd
Sensor return
Serial data 2
Sp cntrl out
Sp input
Spd cntrl grd
Splice pack sp104
Splice pack sp200 (under left front door sill trim plate) g200 plate)
Splice pack sp201
Splice pack sp201 (under right front door sill trim plate)
Steering column fuse holder (base of steering column)
Steering wheel control switches
Tan
Temp
Underhood fuse block (right side of engine compt)
Vol

Compressor Wiring Diagram for Cadillac DeVille 2003

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List of elements for Compressor Wiring Diagram for Cadillac DeVille 2003:

A/c clu fuse 15a
A/c compressor clutch
A/c compressor clutch solenoid
A/c compressor temperature switch
A/c refrigerant low temperature sensor (rear of engine compt, on a/c low a
A/c refrigerant pressure sensor (on a/c pressure hose, near compressor)
A/c relay control
A11
A12
Ac clu relay
B11
C1 b10
Computer data lines system
Dash integration module (dim) (behind right side of dash, near blower motor)
Data line
G100 (left front corner of engine)
Hot at all times
Hot in on or start
Instrument panel integration module (ipm) (above radio)
Low ref
Nca
Powertrain control module (pcm) (left left side of engine compt, inside air cleaner)
Pressure line)
S130
Sensor ground
Sensor return
Sensor sig
Serial data
Underhood fuse block (right side of engine compt)

ANTI-LOCK BRAKES

Anti-lock Brakes Wiring Diagram for Cadillac DeVille 2003

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List of elements for Anti-lock Brakes Wiring Diagram for Cadillac DeVille 2003:

(above radio) instrument panel integration module (ipm)
(behind right rear seat back) electronic suspension control module
(body harn, 35 cm from g202)
(in eng harn, 25.9 cm from camshaft position sensor connector)
(in eng harn, 54.1 cm from c101)
(left front of eng compt, below thermostat housing, on transmission case)
A (or c)
Abs fuse 10a
Abs fuse 50a
Abs ind lamp
Abs ind sig
Abs indicator
B c4
B10
Battery
Brake pressure modulator valve
C1 b11
C1 c12
C2 a11
C5 c1
Computer data lines system
Delivered torque output
Driver information center (dic)
E (or b)
Electronic brake control module (ebcm) (under air cleaner housing)
G110
G201 (right fron corner of passenger compt, under front of sill trim plate, on "a" pillar)
Ground-module
Ground-pump motor
Hot at all times
Hot in run
Ignition pos voltage
Instrument panel cluster
Lateral accelerometer
Lateral accelerometer sensor (under left rear seat)
Left force d15
Left front wheel speed sensor
Left normal force sig
Left rear wheel speed sensor
Lf wheel spd sens-ret
Lf wheel spd sens-sig
Lr wheel spd sens-ret
Lr wheel spd sens-sig
Nca
Powertrain control module (pcm) (on left side of eng compt, inside air cleaner)
Pump motor
Rear fuse block (under left rear seat)
Red
Requested torque input
Rf wheel spd sens-ret
Rf wheel spd sens-sig
Right force c7
Right force d14
Right front wheel speed sensor
Right normal force sig
Right rear wheel speed sensor
Rr wheel spd sens-ret
Rr wheel spd sens-sig
S101
S102
S103
S104
S211
S212
Sens feed-5v
Sensor ret
Serial data class 2
Serial data d4
Sp302 (left rear of passenger compt, 24 cm from cross car channel)
Splice pack sp201
Steering wheel pos
Steering wheel position
Steering wheel position sensor (swps) (on base of steering column)
Stop lamp switch (near top of brake pedal)
Stop lp fuse 15a
Stoplight sw
Tan
Torque delivered
Torque desired
Trac ctrl sw
Traction control indicator
Traction control switch
Traction off
Underhood fuse block (at right side of engine compt)
Var effort steering
Variable effort steering actuator (on left side of power steering gear)
Vent tube
Yaw rate sens
Yaw rate sensor (under left side of rear shelf)

ANTI-THEFT

Forced Entry Wiring Diagram for Cadillac DeVille 2003

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List of elements for Forced Entry Wiring Diagram for Cadillac DeVille 2003:

(ex. hearse) (hearse)
(except hearse)
(limo only)
(near left tail lamp connector)
(under left front door sill trim plate)
(under right front door sill trim plate)
A11
A12
B10
B12
C2 c3
Computer data lines system
Dash integration module (dim) (behind right side of dash, near blower motor)
Driver door lock cylinder switch
Driver door module (inside middle of left front door)
Drv mdl fuse 10a
Exterior lights system
Front passenger door lock actuator
G200
G201
G201 (under right front door sill trim plate)
G301
G302
G401
G402
Ground
Hazard sw sig
Horn ctrl
Horns system
Hot at all times
Ign sw fuse 15a
Instrument panel cluster
Key cyl input
Left front door lock actuator
Left middle door lock actuator
Left middle door module (in left middle door)
Left rear door lock actuator
Left rear door module (in front of left rear door)
Lf dr open in
Lm dr open in
Lr dr open in
Nca
Pass mdl fuse 10a
Passenger front door module (inside middle of right front door)
Power window circuit breaker 30a
Rear compartment lid tamper switch (on lid lock cylinder)
Rear fuse block (under left rear seat)
Rear integration module (rim) (behind right rear seat back)
Remote control door lock receiver (under center of rear package shelf)
Rf dr act ret
Rf dr open in
Right middle door lock actuator
Right middle door module (in right middle door)
Right rear door lock actuator
Right rear door module (in front of right rear door)
Rm dr open in
Rr dr open in
Rrdr mdl fuse 10a
S207
S350
S351
S356
S357
S402
S500
S701
Security indicator
Serial data
Splice pack sp201
Splice pack sp201 (under right front door sill trim plate)
Splice pack sp301 (under left front corner of rear seat)
Splice pack sp302 (under right front seat)
Splice pack sp401 (near right tail lamp connector)
Splice pack sp402
Tamper sw in
Tan

Pass-Key Wiring Diagram for Cadillac DeVille 2003

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List of elements for Pass-Key Wiring Diagram for Cadillac DeVille 2003:

Acc
B (+)
Computer data lines system
G201 (under right front door sill trim plate)
Ground
Hot at all times
Ign
Ignition key
Ignition switch
Not used
Off
Pcm/ batt fuse 10a
Reader/ exciter
Run
S220
S221
Serial data class 2
Splice pack sp201
Start
Theft deterrent control module (in steering column)
Transponder
Underhood fuse block

BODY CONTROL MODULES

Dash Integration Module Wiring Diagram for Cadillac DeVille 2003

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List of elements for Dash Integration Module Wiring Diagram for Cadillac DeVille 2003:

(under right side of rear seat, near battery)
A/c refrig lo temp sen sig
A/t shift lk solenoid pwr
A10
A11
A12
Acc
Accessory voltage
Air conditioning system
Anti-theft system
B10
B11
B12
Backlight lamps control
Battery
Battery positive voltage
Class 2 serial data
Computer data lines system
Control power
Dash integration module (dim) (behind right side of dash, near blower motor)
Dim fuse 10a
Drl rly ctrl
Exterior lights system
Flash to pass in
Flash to pass sw sup volt
Fog lamp rly ctrl
G201 (right front corner of eng compt, under front of sill trim plate, on "a" pillar)
G300
Ground
Hazar sw sig
Headlamp hi beam rly ctrl
Headlamp on sig
Headlamps/wipers sig
Headlights system
Horn rly ctrl
Horns system
Hot at all times
Hot at all times rear fuse block (under left rear seat)
Ign sw fuse 15a
Ignition 1 voltage
Ignition 3 voltage
Ignition switch
Inside air temp ctrl
Interior lights system
Ip lamp fuse sup voltage
Lock
Low ref
Off/run/crank voltage
Park lamp rly ctrl
Parklamp sw on sig
Pnk
Power distribution system
Rear fuse block (under left rear seat)
Remote radio ctrl sup volt
Run
S213
S215
Shift interlock system
Sound system
Sound systems
Splice pack sp201
Standing lamp rly sup volt
Start
Steering wheel ctrl sig
Underhood fuse block (at right side of eng compt)
Wiper/washer system

Instrument Panel Integration Module Wiring Diagram for Cadillac DeVille 2003

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List of elements for Instrument Panel Integration Module Wiring Diagram for Cadillac DeVille 2003:

5v ref
A10
A11
A12
Air conditioning system
Ambient air temp sen sig
Ambient light sen sig
Anti-lock brakes system
Aux air temp coor ctrl b
Aux air temp door ctrl a
Aux air temp sensor sig
B10
B11
B12
Battery positive voltage
Blower motor speed ctrl
Class 2 serial data signal
Computer data lines system
Courtesy lps sw on sig
Driver sunload sen sig
Exterior lights system
Front fog lamp sw sig
Fuel door release sw sig
G201 (right front corner of passenger compt, under front of sill trim plate, on "a" pillar)
Ground
Hazard sw sig
Headlights system
Hot at all times
Hot in on
Hud active ctrl
Hvac bat fuse 10a
Hvac fuse 10a
I/p lamps dimmer sw sig
Ignition 3 voltage
Inside air temp sen sig
Instrument cluster system
Instrument panel integration module (ipm) (above radio)
Interior lights system
Key in ignition sw sig
Left air temp door ctrl a
Left air temp door ctrl b
Low ref
Lower left air temp sen sig
Lower right air temp sen sig
Mode door ctrl
Mode door ctrl a
Passenger sunload sen sig
Power distribution system
Rear compt lk actuator unlk
Rear junction block (under left rear seat)
Recirculation door ctrl
Recirculation door sig
Red
Right air temp door ctrl a
Right air temp door ctrl b
S206
S207
Sp201
Splice pack sp201
Tan
Traction ctrl sw sig
Trunk, tailgate, fuel doors system
Twilight delay sig
Upper left air temp sig
Upper right air temp sig
Warnings system

Rear Integration Module Wiring Diagram for Cadillac DeVille 2003

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List of elements for Rear Integration Module Wiring Diagram for Cadillac DeVille 2003:

(dts)
(except hearse)
(hearse)
A10
A11
A12
Alc exhaust solenoid ctrl
Anti-theft system
Automatic level ctrl 5v ref
Automatic level ctrl low ref
Automatic level ctrl rly coil
Automatic level ctrl sen sig
B10
B11
B12
Battery positive voltage
Class 2 serial data
Computer data lines system
Courtesy lamp rly ctrl
Defogger system
Electronic suspension system
Exterior lights system
G104 (right front of eng compt, near windshield washer fluid reservoir, filter neck, on radio support)
G401 (right rear corner of rear compartment, near right tail lamp connector)
Ground
Hot at all times
Hot in run or start
Ign 1 fuse 10a
Ign key lk cyl relay ctrl
Ign sw fuse 15a
Ign-1 relay
Ignition 1 voltage
Int lp relay ctrl
Interior lamp relay coil ctrl
Interior lights system
Park brake relay coil 1 ctrl
Park brake relay coil ctrl
Pnk
Power distribution system
Power distribution system (cigar lighter)
Power distribution system (rap)
Rap relay coi ctrl
Rear door open in
Rear fuse block (under left rear seat)
Rear integration module (rim) (behind right rear seat back)
Rear parking assist chime sig
Reat defogger rly ctrl
Reverse relay coil sup volt
Shift interlock system
Splice pack sp104
Splice pack sp401
Transmission shift inhibi sig
Trunk ajar sw sig
Trunk key sw sig
Trunk release relay ctrl
Trunk, tailgate, fuel doors system
Warning systems

COMPUTER DATA LINES

Computer Data Lines Wiring Diagram for Cadillac DeVille 2003

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List of elements for Computer Data Lines Wiring Diagram for Cadillac DeVille 2003:

(dash harn, approx 53.3 cm from radio connector)
(in steering column harn, near ignition switch)
(left front corner of passenger compt, under front of sill trim plate, on "a" pillar)
(left rear of passenger compt, 16.5 cm from cross-car channel) sp300
(right front corner of passenger compt, under front of sill trim plate, on "a" pillar)
A11
A12
A22
A23
Aldl fuse 10a
Audio amplifier (behind left rear seat back)
Auxiliary hvac control module
B10
B11
B15
Cellular telephone module (behind right rear seat back)
Cellular telephone module (w/o gps: behind right rear seat back, w/ gps: under right side of rear package shelf)
Dash integration module (behind right side of dash, near blower motor)
Data class 2
Data link connector (under left side of dash, near steering column)
Digital radio receiver
Driver door module (in driver's door)
Driver door switch assembly
Electronic brake control module (under air cleaner housing)
Electronic suspension control module (behind right rear seat back)
Except hearse
Except hearse & limousine
F12
Front passenger door module (in right front door)
G200
G201
Hearse & limousine only
Hearse only
Hot at all times
Inflatable restraint sensing & diagnostic module (under rear of center console)
Instrument panel cluster (ipc)
Instrument panel integration module (above radio)
Left middle door module (inside left middle door)
Left rear door module (in left rear door)
Limousine only
Memory seat module (under driver's seat)
Memory seats
Navigation data processor (behind left rear seat back)
Nca
Powertrain control module (at left side of eng compt, inside air cleaner)
Radio
Rear integration module (behind right rear seat back)
Remote control door lock receiver (rcdlr) (under rear center rear package tray)
Remote play back device cd changer
Right middle door module (in right middle door)
Right rear door module (inside front of right rear door)
S200
S202
S206
S209
S218
Sp304 (right rear of passenger compt, taped to body harn, 24 cm from cross-car channel)
Steering column module (in steering column)
Theft deterrent control module (in steering column)
Underhood fuse block
Vehicle communication interface module
Vehicle information interface module
W/
W/ 8 speakers system
W/ auto contouring control
W/ bose speaker system
W/ mobile telephone provisions
W/ navigation display system
W/ vehicle interface unit
W/o auto contouring control
W/o mobile telephone provisions
W/o navigation display system
W/o vehicle interface unit

COOLING FAN

Cooling Fan Wiring Diagram for Cadillac DeVille 2003

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List of elements for Cooling Fan Wiring Diagram for Cadillac DeVille 2003:

B10
Cool fan 1 fuse 30a
Cool fan 2 fuse 30a
Coolfan 1 relay
Coolfan 2 relay
Coolfan s/p relay
D10
E10
Ect sens grd
Ect sens sig
Engine coolant temperature (ect) sensor (right rear of engine, near egr valve)
F11
G104 (right front of engine compt)
High spd fan
Hot at all times
Left cooling fan
Low spd fan
Powertrain control module (pcm) (at left side of engine compt, inside air cleaner)
Right cooling fan
Splice pack sp104
Underhood fuse block (right side of engine compt)

CRUISE CONTROL

Cruise Control Wiring Diagram for Cadillac DeVille 2003

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List of elements for Cruise Control Wiring Diagram for Cadillac DeVille 2003:

All times
C2 b
Cancel input
Cr cont fuse 10a
Cruise control module (near power brake booster)
Cruise inhibit
Cruise on/off
Cruise set/coast
Disable output
Engage ouput
Engaged input
Engine controls system
G101 (on left side of radiator support)
Ground
Hot at
Hot in
Ignition
Inflatable restraint steering wheels module coil
Left steering wheels controls
Nca
On & start
On/off
Pnk
Powertrain control module (pcm) (in air cleaner housing)
Rear fuse block
Resume/ accel
Resume/accel
Right steering wheels controls
Run/crank fuse 10a
S210 (body harness, near park brake pedal)
S222
S228
Set/ coast
Splice pack sp101
Splice pack sp302 (near driver's seat)
Steering column fuse holder
Stop lp fuse 15a
Stoplamp switch (near top of brake pedal)
Stp lp sig input
Tcc/ cruise switch
Underhood fuse block
Vehicle speed input
Vehicle speed out
Vehicle speed sensor (vss) (on transaxle case extention)
Vss high
Vss low

DEFOGGERS

Defoggers Wiring Diagram for Cadillac DeVille 2003

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List of elements for Defoggers Wiring Diagram for Cadillac DeVille 2003:

(above left rear shelf) g303
(above right rear shelf) g304
A12
B10
B11
C3 c4
Computer data lines system
Driver door module (ddm)
Driver outside rearview mirror
Heater feed
Hot at all times
Hot in on
Instrument panel integration module (ipm) (above radio)
Logic
Low ref
Low reference
Lower grid
Navigation systems
Nca
Passenger front door module (pfdm)
Passenger outside rearview mirror
Radio antenna module
Rear defogger indicator
Rear defogger switch
Rear fuse block (under left rear seat)
Rear integration module (rim) (behind right rear seat back)
Rear window
Rear window defogger grid
Relay ctrl
Rr defog fuse 40a
Rr defog relay
Serial data
Tv1 ant
Tv3 ant
Upper grid
Vic5 ant
W/o television communication system
W/television communication system

ELECTRONIC POWER STEERING

Electronic Power Steering Wiring Diagram for Cadillac DeVille 2003

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List of elements for Electronic Power Steering Wiring Diagram for Cadillac DeVille 2003:

Abs fuse 10a
Abs fuse 50a
Battery
C12
Computer data lines system
Electronic brake control module (ebcm) (lower left front corner of engine compartment, under air cleaner housing)
G110 (deville) (below thermostat housing, on transmission case)
G110 (seville) (lower left front corner of engine on transmission case)
Ground
High effort ctrl
Hot at all times
Hot in run
Ignition
Low effort ctrl
Nca
Rear fuse block (under left rear seat)
Red
Serial data
Underhood fuse block (on right side of engine compartment)
Variable effort steering actuator (on left side of power steering gear)

ELECTRONIC SUSPENSION

Electronic Air Suspension Wiring Diagram for Cadillac DeVille 2003

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List of elements for Electronic Air Suspension Wiring Diagram for Cadillac DeVille 2003:

5v reference
A10
A11
A12
Automatic level control compressor (near rear suspension carrier)
B10
B11
B12
Battery voltage
C10
C11
C12
C13
C14
C15
C16
Chassis pitch sign
Class 2 srl data
Compressor motor
Computer data lines system
Cvrtd fuse 10a
D10
D11
D12
D13
D14
D15
D16
Damper drive
Damper relay
Damper relay ctrl
Elc fuse 30a
Elc relay
Elc relay ctrl
Electronic brake control module (ebcm) (under air cleaner housing)
Electronic suspension control module (behind right rear seat back)
Exhaust solenoid
G401
Ground
Hot at all times
Hot in run
Ign 3 fuse 10a
Ignition 3 voltage
Left front strut actuator
Left front suspension position sensor
Left rear strut actuator
Left rear suspension position sensor
Lf damper ctrl
Lf damper out
Lf position sens
Lift/dive signal out
Lr damper ctrl
Lr damper out
Lr position sens
Nca
Nca nca
Powertrain control module (pcm) (left side of engine compt, inside air cleaner housing)
Pwm serial data
Rear fuse block (under left rear seat)
Red
Rf damper ctrl
Rf damper out
Rf position sens
Right front strut actuator
Right front suspension position sensor
Right rear strut actuator
Right rear suspension position sensor
Rr damper ctrl
Rr damper out
Rr position sens
Sensor return
Splice pack sp401 (right rear corner of luggage compt, near right taillamp connector)

Electronic Level Control Wiring Diagram, with Electronic Suspension for Cadillac DeVille 2003

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List of elements for Electronic Level Control Wiring Diagram, with Electronic Suspension for Cadillac DeVille 2003:

5v reference
A12
Automatic level control compressor (near rear suspension carrier)
B10
B12
Battery voltage
C10
C11
C14
C15
Compressor motor
Computer data lines system
Cvrtd fuse 10a
Data line
Elc fuse 30a
Elc relay
Elc relay ctrl
Electronic suspension control module (behind right rear seat back)
Exhaust solenoid
G401
Ground
Hot at all times
Hot in run
Ign 3 fuse 10a
Ignition voltage
Left rear suspension position sensor
Lift/dive signal
Lift/dive signal out
Lr position sens
Nca
Nca nca
Powertrain control module (pcm) (left side of engine compt, inside air cleaner housing)
Rear fuse block (under left rear seat)
Red
Right rear suspension position sensor
Rr position sens
Sensor return
Splice pack sp401 (right rear corner of luggage compt, near right taillamp connector)

Electronic Level Control Wiring Diagram, without Electronic Suspension for Cadillac DeVille 2003

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List of elements for Electronic Level Control Wiring Diagram, without Electronic Suspension for Cadillac DeVille 2003:

5v reference
A11
Automatic level control compressor (near rear suspension carrier)
B10
Battery
C10
C11
Compressor motor
Elc fuse 30a
Elc relay
Elc relay ctrl
Exhaust solenoid
G401
Ground
Hot at all times
Hot in run
Hot in run or start
Ign sw fuse 15a
Ignition 1
Left rear suspension position sensor
Lr position sens
Nca
Nca nca
Pnk
Rear fuse block (under left rear seat)
Rear integration module (rim) (behind right rear seat back)
Red
Run/crank fuse 10a
Sensor return
Splice pack sp401 (right rear corner of luggage compt, near right taillamp connector)

ENGINE PERFORMANCE

4.6L VIN 9

4.6L VIN 9, Engine Performance Wiring Diagram (1 of 5) for Cadillac DeVille 2003

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List of elements for 4.6L VIN 9, Engine Performance Wiring Diagram (1 of 5) for Cadillac DeVille 2003:

(left front corner of engine, below thermostat housing, on transmission) g100
A/t input spd sens high
A/t input spd sens low
A6 pnk
A8 pnk
Acc on
Air pump relay
Air sol vlv cntrl
Anti lock brakes system
B5 pnk
B6 pnk
B9 pnk
Battery
C9 pnk
Chasis pitch sig
Ckp sens a sig
Ckp sens b sig
Class 2 data link
Cmp sens 12v ref
Cmp sens sig
Computer data lines system
Cooling fans system
Cruise control system
Cruise inhibit out
Cyl 1 cntrl
Cyl 7 cntrl
D4 pnk
D9 pnk
Delivered torque output
E4 pnk
Electronic suspension system
Evap vent valve cntrl
Extended trvl brake sw
F4 pnk
F9 pnk
Fan low spd cntrl
Fuel inj 1 cntrl
Fuel inj 2 cntrl
Fuel inj 3 cntrl
Fuel inj 4 cntrl
Fuel inj 5 cntrl
Fuel inj 6 cntrl
Fuel inj 7 cntrl
Fuel inj 8 cntrl
Fuel injectors
Fuel pump rel cntrl
Fuel tank press sig
Ho2s high (1,1)
Ho2s high (1,2)
Ho2s high (2,1)
Ho2s htr high (1,1)
Ho2s htr low (1,1)
Ho2s low (1,1)
Ho2s low (1,2)
Ho2s low (2,1)
Hos2 htr low (2,1)
Hot at all times
Hot in on & start
Iac coil a high
Iac coil a low
Iac coil b high
Iac coil b low
Iat sens sig
Ignition
Ignition switch
Ims a input
Ims b input
Ims c input
Ims p input
Injr 1 fuse 10a
Injr 2 fuse 10a
Maf sens sig
Map sens sig
Mil cntrl
Off
Oxy sen fuse 10a
Pcm batt fuse 10a
Pcm ground
Pcm ign fuse 10a
Pnk
Pnk a
Powertrain control module (left side of engine compt, inside air cleaner)
Press cntrl sol high
Press cntrl sol low
Red
Requested torque input
S130
S213
Start
Tan
Tp sens sig
Underhood fuse block (right side of engine compt)
Vss high
Vss low
Vss output

4.6L VIN 9, Engine Performance Wiring Diagram (2 of 5) for Cadillac DeVille 2003

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List of elements for 4.6L VIN 9, Engine Performance Wiring Diagram (2 of 5) for Cadillac DeVille 2003:

B3 pnk
B4 pnk
Corner of engine, below
Evaporative emissions canister purge valve (top of engine, on intake manifold)
Evaporative emissions canister vent valve (under left rear of vehicle)
Exhaust gas recirc- ulation (egr) valve (top right rear of engine)
F3 pnk
Fuel tank pressure sensor (on top of fuel tank)
G100 (left front
Ground
Heated oxygen sensor (ho2s) (bank 1, sensor 1) (on right exhaust manifold)
Heated oxygen sensor (ho2s) (bank 1, sensor 2) (rear of catalytic converter)
Heated oxygen sensor (ho2s) (bank 2, sensor 1) (on left exhaust manifold)
Hot in on & start
Iat sens
Idle air control (iac) valve (on throttle body)
Ign
Ign 1 fuse 10a
Maf sens
Manifold absolute pressure sensor (near throttle body)
Mass airflow (maf) sensor (including intake air temperature) (on throttle body)
Nca
Pnk
Pnk d
Rear fuse block (under left rear seat)
Red
S130
S131
Tan
Tan a
Thermostat housing, on transmission)
Throttle position sensor (on left side of throttle body)
Under- hood fuse block
Vent sol fuse 10a

4.6L VIN 9, Engine Performance Wiring Diagram (3 of 5) for Cadillac DeVille 2003

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List of elements for 4.6L VIN 9, Engine Performance Wiring Diagram (3 of 5) for Cadillac DeVille 2003:

(body harn, under left side of dash)
(left rear of passenger compt, 31.5 cm from cross-car channel) sp301
(top left side of engine, under intake manifold top cover)
(under left front corner of rear seat)
Automatic transaxle
Automatic transaxle internal mode switch
Camshaft position (cmp) sensor (front of engine, in cam carrier)
Crankshaft position (ckp) sensor a (on lower left side of engine, near oil filter)
Crankshaft position (ckp) sensor b (on lower left side of engine, near oil filter)
Cruise control system
Engine oil pressure switch (at left side of engine, on oil filter adapter)
F/pmp fuse 20a
Fuel pump (top of fuel tank)
Fuel pump relay
G103 (right rear of engine, below the egr valve)
G301
G402
Hot at all times
Hot in on & start
Ign
Ignition coil (bank 1) (top right
Ignition coil (bank 2)
Ignition control module (bank 1) (under intake manifold top cover)
Ignition control module (bank 2) (under intake manifold top cover)
Instrument panel cluster
Mdl coil fuse 20a
Navigation system
Nca
Pnk
Rear fuse block
Red
S210
Service engine soon ind
Side of engine, under intake manifold top cover)
Sp402 (left rear corner of luggage compt, near left taillamp connector)
Spark plugs
Tach input
Under- hood fuse block
Vehicle speed sensor (vss) (on transaxle case extension)
Vss input

4.6L VIN 9, Engine Performance Wiring Diagram (4 of 5) for Cadillac DeVille 2003

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List of elements for 4.6L VIN 9, Engine Performance Wiring Diagram (4 of 5) for Cadillac DeVille 2003:

(in body harn, 15 cm from p401)
1-2 shift sol
2-3 shift sol
Air pump a fuse 50a
Automatic trans- axle fluid temper- ature sensor
Automatic transaxle
Automatic transaxle input speed sensor
Automatic transmission
Cruise control system
Extended travel brake switch
Fluid pressure manual valve position switch
Fuel sender (fuel tank)
G102 (left front corner of engine, below thermostat housing, on transmission)
Hot at all times
Hot in on & start
Ign 1 fuse 10a
Pnk
Pressure control solenoid valve
Rear fuse block (under left rear seat)
Red
Run/ crank fuse 10a
S113
S405
Secondary air injection (air) pump motor (federal emissions system) (lower right front corner of engine compt)
Secondary air injection (air) pump relay (federal emissions system) (near radiator surge tank)
Secondary air injection (air) solenoid (federal emissions system) (above right exhaust manifold)
Stoplamp switch (abs/tcc switch) (near top of brake pedal)
Tan
Tcc/ cruise switch
Torque converter clutch pulse width modulation solenoid
Trans fuse 10a
Underhood fuse block (right side of engine compt)

4.6L VIN 9, Engine Performance Wiring Diagram (5 of 5) for Cadillac DeVille 2003

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List of elements for 4.6L VIN 9, Engine Performance Wiring Diagram (5 of 5) for Cadillac DeVille 2003:

(left front corner of engine, below thermostat housing, on transmission) g100
1-2 shift sol vlv cntrl
2-3 shift sol vlv cntrl
A/ press low ref
A/c press sens 5v ref
A/c press sensor sig
A/c refrigerant pressure sensor (on a/c pressure hose, near compressor)
A/c rly cntrl
A/c system
Ckp sens a 12v ref
Ckp sens a low ref
Ckp sens b 12v ref
Ckp sens b low ref
Cmp sens low ref
Cooling fans system
Cruise control system
Cruise engaged input
Cyl 2 cntrl
Cyl 3 cntrl
Cyl 4 cntrl
Cyl 5 cntrl
Cyl 6 cntrl
Cyl 8 cntrl
Ect sens low ref
Ect sens sig
Egr 5v ref
Egr position sig
Egr sens low ref
Egr valve low ref
Engine coolant temperature (ect) sensor (right rear of engine, near egr valve)
Engine oil level switch (left side of oil pan)
Evap purge sol cntrl
Fan high spd cntrl
Ftp sens 5v ref
Fuel lvl signal
Fuel tank press low ref
Gen field duty sig
Generator turn on sig
Ho2s htr low (1,2)
Iat low ref
Icm 1 low ref
Icm 2 low ref
Knock sens low ref
Knock sens sig
Knock sensor (ks) (on top of engine, under intake manifold top cover)
Map sens 5v ref
Map sens low ref
Nca
Oil level sw input
Oil press sw input
Pcm ground
Pnk
Powertrain control module (left side of engine compt, inside air cleaner)
Red
S130
S131
Starter rly cntrl
Starting/ charging system
Tach output
Tcc brake switch input
Tcc pwm sol cntrl
Tft sens low ref
Tft sensor sig
Tp sens 5v ref
Tp sens low ref
Trans range a input
Trans range c input

4.6L VIN Y

4.6L VIN Y, Engine Performance Wiring Diagram (1 of 5) for Cadillac DeVille 2003

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List of elements for 4.6L VIN Y, Engine Performance Wiring Diagram (1 of 5) for Cadillac DeVille 2003:

(left front corner of engine, below thermostat housing, on transmission) g100
A/t input spd sens high
A/t input spd sens low
A6 pnk
A8 pnk
Acc on
Air pump relay
Air sol vlv cntrl
Anti lock brakes system
B5 pnk
B6 pnk
B9 pnk
Battery
C9 pnk
Chasis pitch sig
Ckp sens a sig
Ckp sens b sig
Class 2 data link
Cmp sens 12v ref
Cmp sens sig
Computer data lines system
Cooling fans system
Cruise control system
Cruise inhibit out
Cyl 1 cntrl
Cyl 7 cntrl
D4 pnk
D9 pnk
Delivered torque output
E4 pnk
Electronic suspension system
Evap vent valve cntrl
Extended trvl brake sw
F4 pnk
F9 pnk
Fan low spd cntrl
Fuel inj 1 cntrl
Fuel inj 2 cntrl
Fuel inj 3 cntrl
Fuel inj 4 cntrl
Fuel inj 5 cntrl
Fuel inj 6 cntrl
Fuel inj 7 cntrl
Fuel inj 8 cntrl
Fuel injectors
Fuel pump rel cntrl
Fuel tank press sig
Ho2s high (1,1)
Ho2s high (1,2)
Ho2s high (2,1)
Ho2s htr high (1,1)
Ho2s htr low (1,1)
Ho2s low (1,1)
Ho2s low (1,2)
Ho2s low (2,1)
Hos2 htr low (2,1)
Hot at all times
Hot in on & start
Iac coil a high
Iac coil a low
Iac coil b high
Iac coil b low
Iat sens sig
Ignition
Ignition switch
Ims a input
Ims b input
Ims c input
Ims p input
Injr 1 fuse 10a
Injr 2 fuse 10a
Maf sens sig
Map sens sig
Mil cntrl
Off
Oxy sen fuse 10a
Pcm batt fuse 10a
Pcm ground
Pcm ign fuse 10a
Pnk
Pnk a
Powertrain control module (left side of engine compt, inside air cleaner)
Press cntrl sol high
Press cntrl sol low
Red
Requested torque input
S130
S213
Start
Tan
Tp sens sig
Underhood fuse block (right side of engine compt)
Vss high
Vss low
Vss output

4.6L VIN Y, Engine Performance Wiring Diagram (2 of 5) for Cadillac DeVille 2003

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List of elements for 4.6L VIN Y, Engine Performance Wiring Diagram (2 of 5) for Cadillac DeVille 2003:

B3 pnk
B4 pnk
Corner of engine, below
Evaporative emissions canister purge valve (top of engine, on intake manifold)
Evaporative emissions canister vent valve (under left rear of vehicle)
Exhaust gas recirc- ulation (egr) valve (top right rear of engine)
F3 pnk
Fuel tank pressure sensor (on top of fuel tank)
G100 (left front
Ground
Heated oxygen sensor (ho2s) (bank 1, sensor 1) (on right exhaust manifold)
Heated oxygen sensor (ho2s) (bank 1, sensor 2) (rear of catalytic converter)
Heated oxygen sensor (ho2s) (bank 2, sensor 1) (on left exhaust manifold)
Hot in on & start
Iat sens
Idle air control (iac) valve (on throttle body)
Ign
Ign 1 fuse 10a
Maf sens
Manifold absolute pressure sensor (near throttle body)
Mass airflow (maf) sensor (including intake air temperature) (on throttle body)
Nca
Pnk
Pnk d
Rear fuse block (under left rear seat)
Red
S130
S131
Tan
Tan a
Thermostat housing, on transmission)
Throttle position sensor (on left side of throttle body)
Under- hood fuse block
Vent sol fuse 10a

4.6L VIN Y, Engine Performance Wiring Diagram (3 of 5) for Cadillac DeVille 2003

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List of elements for 4.6L VIN Y, Engine Performance Wiring Diagram (3 of 5) for Cadillac DeVille 2003:

(body harn, under left side of dash)
(left rear of passenger compt, 31.5 cm from cross-car channel) sp301
(top left side of engine, under intake manifold top cover)
(under left front corner of rear seat)
Automatic transaxle
Automatic transaxle internal mode switch
Camshaft position (cmp) sensor (front of engine, in cam carrier)
Crankshaft position (ckp) sensor a (on lower left side of engine, near oil filter)
Crankshaft position (ckp) sensor b (on lower left side of engine, near oil filter)
Cruise control system
Engine oil pressure switch (at left side of engine, on oil filter adapter)
F/pmp fuse 20a
Fuel pump (top of fuel tank)
Fuel pump relay
G103 (right rear of engine, below the egr valve)
G301
G402
Hot at all times
Hot in on & start
Ign
Ignition coil (bank 1) (top right
Ignition coil (bank 2)
Ignition control module (bank 1) (under intake manifold top cover)
Ignition control module (bank 2) (under intake manifold top cover)
Instrument panel cluster
Mdl coil fuse 20a
Navigation system
Nca
Pnk
Rear fuse block
Red
S210
Service engine soon ind
Side of engine, under intake manifold top cover)
Sp402 (left rear corner of luggage compt, near left taillamp connector)
Spark plugs
Tach input
Under- hood fuse block
Vehicle speed sensor (vss) (on transaxle case extension)
Vss input

4.6L VIN Y, Engine Performance Wiring Diagram (4 of 5) for Cadillac DeVille 2003

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List of elements for 4.6L VIN Y, Engine Performance Wiring Diagram (4 of 5) for Cadillac DeVille 2003:

(in body harn, 15 cm from p401)
1-2 shift sol
2-3 shift sol
Air pump a fuse 50a
Automatic trans- axle fluid temper- ature sensor
Automatic transaxle
Automatic transaxle input speed sensor
Automatic transmission
Cruise control system
Extended travel brake switch
Fluid pressure manual valve position switch
Fuel sender (fuel tank)
G102 (left front corner of engine, below thermostat housing, on transmission)
Hot at all times
Hot in on & start
Ign 1 fuse 10a
Pnk
Pressure control solenoid valve
Rear fuse block (under left rear seat)
Red
Run/ crank fuse 10a
S113
S405
Secondary air injection (air) pump motor (federal emissions system) (lower right front corner of engine compt)
Secondary air injection (air) pump relay (federal emissions system) (near radiator surge tank)
Secondary air injection (air) solenoid (federal emissions system) (above right exhaust manifold)
Stoplamp switch (abs/tcc switch) (near top of brake pedal)
Tan
Tcc/ cruise switch
Torque converter clutch pulse width modulation solenoid
Trans fuse 10a
Underhood fuse block (right side of engine compt)

4.6L VIN Y, Engine Performance Wiring Diagram (5 of 5) for Cadillac DeVille 2003

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List of elements for 4.6L VIN Y, Engine Performance Wiring Diagram (5 of 5) for Cadillac DeVille 2003:

(left front corner of engine, below thermostat housing, on transmission) g100
1-2 shift sol vlv cntrl
2-3 shift sol vlv cntrl
A/ press low ref
A/c press sens 5v ref
A/c press sensor sig
A/c refrigerant pressure sensor (on a/c pressure hose, near compressor)
A/c rly cntrl
A/c system
Ckp sens a 12v ref
Ckp sens a low ref
Ckp sens b 12v ref
Ckp sens b low ref
Cmp sens low ref
Cooling fans system
Cruise control system
Cruise engaged input
Cyl 2 cntrl
Cyl 3 cntrl
Cyl 4 cntrl
Cyl 5 cntrl
Cyl 6 cntrl
Cyl 8 cntrl
Ect sens low ref
Ect sens sig
Egr 5v ref
Egr position sig
Egr sens low ref
Egr valve low ref
Engine coolant temperature (ect) sensor (right rear of engine, near egr valve)
Engine oil level switch (left side of oil pan)
Evap purge sol cntrl
Fan high spd cntrl
Ftp sens 5v ref
Fuel lvl signal
Fuel tank press low ref
Gen field duty sig
Generator turn on sig
Ho2s htr low (1,2)
Iat low ref
Icm 1 low ref
Icm 2 low ref
Knock sens low ref
Knock sens sig
Knock sensor (ks) (on top of engine, under intake manifold top cover)
Map sens 5v ref
Map sens low ref
Nca
Oil level sw input
Oil press sw input
Pcm ground
Pnk
Powertrain control module (left side of engine compt, inside air cleaner)
Red
S130
S131
Starter rly cntrl
Starting/ charging system
Tach output
Tcc brake switch input
Tcc pwm sol cntrl
Tft sens low ref
Tft sensor sig
Tp sens 5v ref
Tp sens low ref
Trans range a input
Trans range c input

EXTERIOR LIGHTS

Back-up Lamps Wiring Diagram for Cadillac DeVille 2003

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List of elements for Back-up Lamps Wiring Diagram for Cadillac DeVille 2003:

(behind right rear seat back) rear integration module
(in back-up lamp harn, near left backup lamp connector) s400
771a
772a
A12
Automatic transaxle
Automatic transaxle internal mode switch
Computer data lines system
G100 (left side of engine, below thermostat housing)
G402 (left rear corner of luggage compt)
Hot at all times
Ims a input
Ims b input
Left back-up lamp
Mirrors system (automatic day/night mirror)
Navigation system (parking assist circuit)
Powertrain control module (left side of engine compt, inside air cleaner)
Prk/rev fuse 10a
Rear fuse block (under left rear seat)
Red
Reverse relay
Reverse rly ctrl
Right back-up lamp
S401
Serial data
Splice pack sp100
Splice pack sp402

Exterior Lamps Wiring Diagram, Hearse & Limousine for Cadillac DeVille 2003

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List of elements for Exterior Lamps Wiring Diagram, Hearse & Limousine for Cadillac DeVille 2003:

(body harn, in left rear of passenger comp)
(body harn, near ground under right front seat)
(in body harn, near ground at left rear tail lamp)
(in body harn, near ground at right rear tail lamp)
(in steering wheel, behind inflatable restraint steering wheel module)
(left headlamp harn, near left front turn/ parking lamp connector) s107
(left rear corner of luggage compt, near left tail lamp connector) g402
(near windshield washer fluid reservoir filler neck)
(right headlamp harn, near right front turn/ parking lamp connector) s110
A tan
A12
B c1
B11
B12
Batt
C1 a
C1 b4
C1 c5
C3 e3
C316
C317
C318
C319 p
C327
C328
C409
Center high mount stop lamp (chmsl)
Cornering lamp
Ctrl power
Dash integration module (right side of dash, near blower motor)
Dim
Dim r fuse 10a
Driver's outside rear view mirror (left turn signal)
G104
G104 (near windshield washer fluid reservoir filler neck)
G200 (under left front door sill trim plate)
G201 (under right front door sill trim plate)
G302
G302 (under right front seat, near inflatable restraint sensing diagnostic module)
G401 (right rear corner of luggage compt, near right tail lamp connector)
G402 (left rear corner of luggage compt, near left tail lamp connector)
Gnd
Hazar sw sig
Hazard detect
Hazard signal
Hazard sw sig
Hazard switch
Head
Headlamp switch
Headlights system
Hearse
Hearse only
Hot at all times
Hot in on & start
Instru- ment panel cluster (ipc)
Instrument panel integration module (above radio)
Interior lights stystem
Interior lights system
L taillamp outage
L turn sig out
Left
Left c
Left front marker lamp
Left front park/ turn signal lamp
Left tail lamp
Left turn signal ind
Lf turn sig feed
License lamps
Limousine
Limousine only
Lp pk l fuse 15a
Lp pk r fuse 15a
Lr stop/turn feed
Nca
Not used
Off
Outage detect
Park
Passenger's outside rear view mirror (right turn signal)
Pk lp ctrl
Pnk
Prk lmp in
Prk lp relay
R tail lmp outage
R turn sig out
Rear fuse block (under left rear seat)
Rear integration module (behind right rear seat back)
Rf turn lp feed
Right
Right c
Right front marker lamp
Right front park/ turn signal lamp
Right tail lamp
Right turn signal ind
Rr stop/turn feed
Run/ crank fuse 10a
S105
S108
S206
S208 (in instrument panel harn, near instrument panel integration module)
S222
S224
S311
S318
S402
S403
S406
Sp402
Splice pack sp104
Splice pack sp200
Splice pack sp201
Splice pack sp302
Splice pack sp302 (under right front seat, near inflatable restraint sensing diagnostic module)
Splice pack sp401
Splice pack sp402
Stop lmp sw out
Stop lp fuse 15a
Stoplamp switch (near top of brake pedal)
Tail
Tan
Theft ctrl
Trailer detect
Tsig/ haz fuse 15a
Turn signal
Turn signal switch
Turn/hazard flasher module (behind left front knee bolster)
Turn/stop tail
Turn/stop/tail
Underhood fuse box (at right side of eng compt)

Exterior Lamps Wiring Diagram, with Trailer Tow for Cadillac DeVille 2003

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List of elements for Exterior Lamps Wiring Diagram, with Trailer Tow for Cadillac DeVille 2003:

(in body harn, near ground at left rear tail lamp) s403
(in body harn, near ground at right rear tail lamp)
(in i/p harn, near instrument panel integration module)
(in steering wheel, behind inflatable restraint steering wheel module)
(left headlamp harn, near left front turn/parking lamp connector) s107
(left rear corner of luggage compt, near left tail lamp connector) g402
(near windshield washer fluid reservoir filler neck)
(right headlamp harn, near right front turn/ parking lamp connector) s110
10a
A tan
A12
B c1
B11
B12
Batt
C1 a
C1 b4
C1 c5
C3 e3
Center high mount stop lamp (chmsl)
Ctrl power
Dash integration module (right side of dash, near blower motor) c3
Dim
Dim r fuse 10a
Driver's outside rear view mirror (left turn signal)
G104
G200 (under left front door sill trim plate)
G201 (under right front door sill trim plate)
G401 (right rear corner of luggage compt, near right tail lamp connector)
G402 (left rear corner of luggage compt, near left tail lamp connector)
Gnd
Hazar sw sig
Hazard detect
Hazard signal
Hazard sw sig
Hazard switch
Head
Headlamp switch
Headlights system
Hot at all times
Hot in on & start
Instru- ment panel cluster (ipc)
Instrument panel integration module (above radio)
Interior lights stystem
Interior lights system
L taillamp outage
L turn sig out
Left
Left cornering lamp
Left front marker lamp
Left front park/ turn signal lamp
Left tail lamp
Left turn signal ind
Lf turn sig feed
License lamps
Lp pk l fuse 15a
Lp pk r fuse 15a
Lr stop/turn feed
Nca
Not used
Off
Outage detect
Park
Passenger's outside rear view mirror (right turn signal)
Pk lp ctrl
Pnk
Prk lmp in
Prk lp relay
R tail lmp outage
R turn sig out
Rear fuse block (under left rear seat)
Rear integration module (behind right rear seat back)
Rf turn lp feed
Right
Right cornering lamp
Right front marker lamp
Right front park/ turn signal lamp
Right tail lamp
Right turn signal ind
Rr stop/turn feed
Run/ crank fuse 10a
S105
S108
S200
S206
S208
S222
S224
S402
S406
S409
Sp201
Splice pack sp104
Splice pack sp200
Splice pack sp302
Splice pack sp401
Splice pack sp402
Stop lmp sw out
Stop lp fuse 15a
Stoplamp switch (near top of brake pedal)
Tail
Tan
Theft ctrl
Trailer connector (left rear compt)
Trailer det
Trailer detect
Trailer harn- ess fuse box
Tsig/ haz fuse 15a
Turn signal
Turn signal switch
Turn/hazard flasher module (behind left front knee bolster)
Turn/stop tail
Underhood fuse box (at right side of eng compt)
Underhood fuse box (at right side of engine compt)

Exterior Lamps Wiring Diagram, without Trailer Tow for Cadillac DeVille 2003

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List of elements for Exterior Lamps Wiring Diagram, without Trailer Tow for Cadillac DeVille 2003:

(in body harn, near ground at left rear tail lamp) s403
(in body harn, near ground at right rear tail lamp)
(in steering wheel, behind inflatable restraint steering wheel module)
(left headlamp harn, near left front turn/parking lamp connector) s107
(left rear corner of luggage compt, near left tail lamp connector) g402
(near windshield washer fluid reservoir filler neck)
(right headlamp harn, near right front turn/ parking lamp connector) s110
A tan
A12
B c1
B11
B12
Batt
C1 a
C1 b4
C1 c5
C3 e3
Center high mount stop lamp (chmsl)
Ctrl power
Dash integration module (right side of dash, near blower motor)
Dim
Dim r fuse 10a
Driver's outside rear view mirror (left turn signal)
G104
G200 (under left front door sill trim plate)
G201 (under right front door sill trim plate)
G401 (right rear corner of luggage compt, near right tail lamp connector)
G402 (left rear corner of luggage compt, near left tail lamp connector)
Gnd
Hazar sw sig
Hazard detect
Hazard signal
Hazard sw sig
Hazard switch
Head
Headlamp switch
Headlights system
Hot at all times
Hot in on & start
Instru- ment panel cluster (ipc)
Instrument panel integration module (above radio)
Interior lights stystem
Interior lights system
L taillamp outage
L turn sig out
Left
Left cornering lamp
Left front marker lamp
Left front park/ turn signal lamp
Left tail lamp
Left turn signal ind
Lf turn sig feed
License lamps
Lp pk l fuse 15a
Lp pk r fuse 15a
Lr stop/turn feed
Nca
Not used
Off
Outage detect
Park
Passenger's outside rear view mirror (right turn signal)
Pk lp ctrl
Pnk
Prk lmp in
Prk lp relay
R tail lmp outage
R turn sig out
Rear fuse block (under left rear seat)
Rear integration module (behind right rear seat back)
Rf turn lp feed
Right
Right cornering lamp
Right front marker lamp
Right front park/ turn signal lamp
Right tail lamp
Right turn signal ind
Rr stop/turn feed
Run/ crank fuse 10a
S105
S108
S200
S206
S208 (in instrument panel harn, near instrument panel integration module)
S222
S224
S402
S406
Splice pack sp104
Splice pack sp200
Splice pack sp201
Splice pack sp302
Splice pack sp401
Splice pack sp402
Stop lmp sw out
Stop lp fuse 15a
Stoplamp switch (near top of brake pedal)
Tail
Tan
Theft ctrl
Trailer detect
Tsig/ haz fuse 15a
Turn signal
Turn signal switch
Turn/hazard flasher module (behind left front knee bolster)
Turn/stop tail
Underhood fuse box (at right side of eng compt)
Underhood fuse box (at right side of engine compt)

GROUND DISTRIBUTION

Ground Distribution Wiring Diagram (1 of 6) for Cadillac DeVille 2003

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List of elements for Ground Distribution Wiring Diagram (1 of 6) for Cadillac DeVille 2003:

(at right side of engine compartment) underhood fuse block
(design 1)
(design 2)
A/c compressor clutch
Accy relay
Automatic transaxle fluid pressure manual valve position switch
Brake fluid level switch
Coil
Coolfan s/p relay
Cruise control module
Electronic brake control module (ebcm)
Engine oil level switch
Engine oil pressure (eop) switch
F11
G100 (left front corner of engine, below thermostat housing)
G101 (on left side of radiator support)
G102 (left side of engine, below thermostat housing)
G103 (right rear of engine, below exhaust gas recirculation valve)
G104 (near windshield washer fluid reservoir filler neck)
G105 (above generator)
G106 (near windshield washer fluid reservoir filler neck)
G110 (on left side of radiator support)
Horn (high note)
Horn (low note)
Ign 1 relay
Ignition control (icm) module bank 1
Ignition control (icm) module bank 2
Left cooling fan
Left cornering lamp
Left front marker lamp
Left front park/ turn signal lamp
Mass airflow (maf) sensor
Nca
Night vision camera
Powertrain control module (pcm)
Right cornering lamp
Right front marker lamp
Right front park/ turn signal lamp
S100 (in forward lamp harness, approximately 35.0 cm (13.8 in) from left horn)
S105 (in headlamp jumper harness, approximately 24.4 cm (9.6 in) from front side marker lamp)
S108 (in headlamp jumper, approximately 24.4 cm (9.6 in) from front side marker lamp)
S130
S131
Secondary air injection (air) pump
Splice pack sp101
Splice pack sp104
Underhood lamp
W/infared display enhanced vision
Windshield washer fluid level switch
Windshield washer fluid pump
Windshield wiper motor

Ground Distribution Wiring Diagram (2 of 6) for Cadillac DeVille 2003

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List of elements for Ground Distribution Wiring Diagram (2 of 6) for Cadillac DeVille 2003:

Ashtray lamp
Automatic transmission shift lever position indicator
Auxiliary hvac control module
B12
Blower motor control processor
Braided wire
C208
Coolant level switch
Dash integration module (dim)
Data link connector (dlc)
Door lock relay
Exc hearse
Except hearse, limousine
From ground bus (diagram 2 of 6)
Front cigar lighter
G201 (under right front door sill trim plate)
G202 (left front of passenger compartment, near park brake release solenoid)
Hazard switch
Head-up display (hud) switch
Headlamp dimmer switch
Hearse
I/p compartment lamp switch
Ignition switch
Instrument panel ingtegration module (ipm)
Instrument panel integration module (ipm)
Left driver information center (dic) switch
Limousine
Nca
Park brake release solenoid
Passenger front door module (pfdm)
Passenger outside rearview mirror
Radio
Radio antenna module
Reverse lockout solenoid
Right middle window switch
Right driver information center (dic) switch
Right middle door module (rmdm)
Right rear door lock actuator
Right rear door module (rrdm)
S206 (in instrument panel harness approximately 72.1 cm (28.4 in) from radio connector)
S207 (in instrument panel harness approximately 86.1 cm (33.9 in) from instrument panel integration module connector)
S221 (in steering column harness, near ignition switch)
S300 (in console harness, approximately 68.5 cm (27 in) from rear heater & a/c control module connector)
S350 (in right middle door harness)
Shift control assembly
Shift lock actuator
Splice pack sp201
Theft deterrent control module
To ground g201 (diagram 2 of 6)
Traction control switch
Turn signal/ hazard flasher module
W/o front compartment floor console
W/o navigation system display

Ground Distribution Wiring Diagram (3 of 6) for Cadillac DeVille 2003

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List of elements for Ground Distribution Wiring Diagram (3 of 6) for Cadillac DeVille 2003:

(above left rear shelf) g303
(except hearse or limousine) left rear heated seat module
(except hearse or limousine) right rear heated seat module
(if equipped) rear subwoofer speaker
(not used)
(under left rear seat) rear fuse block
(under right side of rear seat, near battery) g300
A32
Audio amplifier
Auxiliary hvac control module
B12
Battery
Coil
Dash integration module (dim)
Data link connector (dlc) (partial)
Digital radio receiver
Driver door module (ddm)
Driver outside rearview mirror
E16
Exc hearse
F/pmp relay
G200 (under left front door sill trim plate)
G301 (under left front corner of rear seat)
G304 (above right rear shelf)
G306 (under right front seat)
Head-up display (hud)
Headlamp switch
Horn switch
Ign 3 relay
Inflatable restraint sensing & diagnostic module (sdm)
Inflatable restraint steering wheel module coil
Instrument cluster
Nca
Night vision camera
Onstar cellular antenna
Park key lock actuator
Radio
Rear window defogger grid
Rear window sunshade module
Remote control door lock receiver (rcdlr)
Remote playback device- cd changer
S200 (in instrument panel harness, approximately 18.5 cm (7.3 in) from instrument cluster connector)
S219 (in steering column harness, near steering wheel module coil)
S334 (in rear seat harness, approx. 37.5 cm (14.8 in) from c306)
S358 (8 speaker system)
S500 (in left front door harness, approximately 26.5 cm (10.4 in) from driver door module connector)
Shift interlock actuator
Splice pack sp301
Steering column module
Steering wheel controls (left)
Steering wheel controls (right)
Vehicle communication interface module
W/infared display enhanced vision

Ground Distribution Wiring Diagram (4 of 6) for Cadillac DeVille 2003

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List of elements for Ground Distribution Wiring Diagram (4 of 6) for Cadillac DeVille 2003:

(if equipped) driver heated seat module
(if equipped) driver seat massage module
(if equipped) memory seat module (msm)
(limousine) (exc limousine)
A f
B12
Connector)
Driver seat adaptive lumbar module
Driver seat adjuster switch
Driver seat lumbar switch
Exc hearse
Exc hearse, limousine
From ground bus b (diagram 4 of 6)
Front passenger seat adaptive lumbar module
Front passenger seat adjuster switch
Front passenger seat lumbar switch
G302 (under right front seat, near inflatable restraint sensing diagnostic module)
Hearse
Heated seat module
K l
Left middle cigar lighter
Left middle courtesy lamp
Left middle door module (lmdm)
Left middle door park relay assembly
Left middle window switch
Left rear cigar lighter
Left rear door lock actuator
Left rear door module (lrdm)
Left rear seat lumbar switch
Limousine
Pnk
Right middle cigar lighter
Right middle courtesy lamp
Right middle door module (rmdm)
Right middle door park relay assembly
Right rear cigar lighter
Right rear door module (rrdm)
Right rear seat lumbar switch
S325 (in left front seat harness, approximately 28 cm (11 in) from c300)
S331 (in right front seat harness, approximately 49 cm (19.3 in) from c307)
S351 (in left middle door harness)
S352 (in left middle door harness)
S353 (in right middle door harness)
S362
S363
S700 (in left rear door harness, approximately 17 cm (6.7 in) from driver door module connector)
S800 (in right rear door harness, approximately 16.5 cm (6.5 in) from right rear door module connector)
S803 (in right rear door trim harness, approx. 18 cm (7.1 in) from right rear power window switch connector)
Seat lumbar switch
Splice pack sp302
To ground g302 (diagram 4 of 6)
Upfitter provision ilumination lamp
W/ contour control
W/ heated seat
W/ power lumbar
W/hearse, limousine

Ground Distribution Wiring Diagram (5 of 6) for Cadillac DeVille 2003

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List of elements for Ground Distribution Wiring Diagram (5 of 6) for Cadillac DeVille 2003:

Center high mount stop lamp (chmsl)
Exc hearse
Exc hearse, limousine
F11
From ground bus (diagram 5 of 6)
Fuel door release actuator
Fuel pump & sender assembly
G402 (left rear corner of luggage compartment, near left tail lamp connector)
Garage door opener
Hearse
Hearse, limousine
Inside rearview mirror
Left back-up lamp
Left courtesy lamp switch
Left front fog lamp
Left high beam headlamp
Left low beam headlamp
Left rear door courtesy lamp
Left rear vanity mirror lamp
Left tail lamp
Left vanity mirror lamp
License lamp
Nca
Outside moisture sensor
Overhead console courtesy lamp
Rear compartment lid release actuator
Rear compartment lid tamper switch
Rear door release actuator
Right back-up lamp
Right courtesy lamp switch
Right front fog lamp
Right high beam headlamp
Right low beam headlamp
Right rear vanity mirror lamp
Right vanity mirror lamp
S106 (in headlamp jumper, approximately 14.5 cm (5.7 in) from high beam headlamp)
S109 (in headlamp jumper, approximately 14.5 cm (5.7 in) from high beam headlamp)
S303 (in headliner harness approximately 63 cm (24.8 in) from inside rearview mirror connector)
S305 (in headliner harness, approximately 80 cm (31.5 in) from inside rearview mirror connector)
S401 (in back-up lamp harness, approximately 14.5 cm (5.7 in) from c400)
S402 (in body harness approximately 21.5 cm (8.5 in) from c400)
Splice pack sp402
To ground g402 (diagram 5 of 6)
Traffic information receiver
Underhood fuse block (at right side of engine compartment)

Ground Distribution Wiring Diagram (6 of 6) for Cadillac DeVille 2003

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List of elements for Ground Distribution Wiring Diagram (6 of 6) for Cadillac DeVille 2003:

(if equipped) rear object sensor control module
6 of 6)
A12
Automatic level control (alc) compressor
Cellular telephone module
E16
Electronic suspension control (esc) module
From ground bus (diagram d
G401 (right rear corner of luggage compartment near right tail lamp connector)
Nca
Radio navigation receiver
Rear integration module (rim)
Rf signal amplifier
Right tail lamp
S360 (in onstar jumper harness)
Splice pack sp401
Sun roof control module
To ground g401 (diagram 6 of 6)
Vehicle communication interface module (vcim)
W/ communication interface module
W/o communication interface module

HEADLIGHTS

Headlights Wiring Diagram for Cadillac DeVille 2003

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List of elements for Headlights Wiring Diagram for Cadillac DeVille 2003:

(top center of dash) sunload sensor assembly
A10
A11
A12
B10
C1 a9
C10
C11
C2 e9
C2 f11
Computer data lines system
Dash integration module (dim) (right side of dash)
Daytime running lamp (drl) resistor (left front corner of eng compt)
Dimmer switch
Drl fuse 15a
Drl relay
Flash- to-pass switch
Fog fuse 10a
Fog lamp switch
Fog lp relay
G200 (under left front door sill trim plate)
G201 (under right front door sill trim plate)
G402 (left rear corner of luggage compt)
Hdhi- bml fuse 10a
Hdhi- bmr fuse 10a
Hdlo- bml fuse 10a
Hdlo- bmr fuse 10a
Hdlp hi bm relay
Hdlp lo bm relay
Headlamp beam switch
Headlamp dimmer switch
Headlamp switch
Hot at all times
Hot in on & start
Instrument panel integration module (above radio)
Interior lights system
J10
J11
L10
L11
Left front fog lamp
Left high beam head- lamp
Left low beam head- lamp
Low
M10
M11
P10
P11
Pk lp switch
Pnk
Prk lp relay
Rear fuse block (under left rear seat)
Right front fog lamp
Right high beam head- lamp
Right low beam head- lamp
S106
S109
S200
S205 (i/p harn, 65.5 cm from radio conn)
S221
Splice pack sp200
Splice pack sp201
Splice pack sp402
Twilight delay sw
Underhood fuse block (right side of engine compt)
Wiper/ washer system

HORN

Horn Wiring Diagram for Cadillac DeVille 2003

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List of elements for Horn Wiring Diagram for Cadillac DeVille 2003:

1995 vftc c
A12
B12
D10
Dash integration module (behind right side of dash)
G104 (near windshield washer fluid reservoir filler neck)
G200 (under left front door sill trim plate)
Horn fuse 15a
Horn relay
Horn switch
Horn switch fuse 2a
Hot at all times
Inflatable restraint steering wheel module coil
Inflatable restraint wheel module
Left "a" note horn (behind left front bumper facia)
Nca
Q10
Q11
Right "f" note horn (behind left front bumper facia)
S10
S100
S11
S219
S223
Splice pack sp104
Splice pack sp200
Steering column fuse block (base of steering column)
Underhood fuse block (right side of engine compt)

INSTRUMENT CLUSTER

Instrument Cluster Wiring Diagram (1 of 2) for Cadillac DeVille 2003

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List of elements for Instrument Cluster Wiring Diagram (1 of 2) for Cadillac DeVille 2003:

A10
A11
A12
Abs ind
Abs ind signal
Air bag ind
B10
B11
B12
Battery
Brake fluid level signal
Brake fluid level switch (in master cylinder reservoir)
Brake ind
Charge ind
Computer data lines system
Coolant level signal
Cruise ind
Driver information center (dic)
Dspl mode signal
Eng/met signal
Engine controls system
Engine coolant temp ind
Engine coolant temperature gauge
Engine oil pressure ind
Exterior lights system
Fasten seat belt ind
Front fog lamp ind
Fuel gauge
G101 (on left side of radiator support)
G104 (near windshield washer fluid reservoir filler neck)
G200 (under left front door sill trim plate)
Ground
High beam ind
Hot at all times
Hot in on or start
Ign 1 fuse 10a
Ignition
Info down signal
Info reset signal
Info up signal
Instrument cluster
Interior lights system
Ip fuse 10a
Left turn ind
Left turn signal
Lights on ind
Logic
Malfunction ind lamp (mil)
On/off signal
Park brake signal
Pnk
Rear fog lamp ind
Rear fuse block (under left rear seat)
Red
Right turn ind
Right turn signal
S200
Security ind
Serial data class 2
Speedometer
Tachometer (if equipped)
Tachometer signal
Traction control ind
Trip a/b signal
Trip reset signal
Underhood fuse block (at right side of engine compartment)
Vehicle speed signal
Vf display
Washer sol level signal
Windshield washer fluid level switch (on top of solvent reservoir)

Instrument Cluster Wiring Diagram (2 of 2) for Cadillac DeVille 2003

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List of elements for Instrument Cluster Wiring Diagram (2 of 2) for Cadillac DeVille 2003:

Coolant level switch (at right rear of engine compartment, in surge tank)
Dspl mode
Electronic brake control module (ebcm) (under air cleaner housing)
Eng/ met
Engine oil level switch (on left side of oil pan)
Engine oil pressure switch (at left side of engine, on oil filter adapter)
G100 (left side of engine, below thermostat housing)
G201 (under right front door sill trim plate)
Info down
Info up
Info/ reset
Left driver information center (dic) switch
Oil lvl sig
Oil pres sig
On/ off
Park brake switch (on park brake switch)
Pnk
Powertrain control module (pcm) (at left side of engine compartment, inside air cleaner)
Right driver information center (dic) switch
S206
Tacho out
Trip a/b
Trip reset
Vss out

Night Vision Wiring Diagram for Cadillac DeVille 2003

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List of elements for Night Vision Wiring Diagram for Cadillac DeVille 2003:

B12
C205
Camera on signal
Design
Dspl intensity signal
Dspl off signal
G101 (on left side of radiator support)
G200 (under left front door sill trim plate)
G201 (under right front door sill trim plate)
Ground
Head-up display (hud)
Head-up display (hud) control
Heater ground
Hot in on
Hud active signal
Ignition
Image down
Image down signal
Image up
Image up signal
Instrument panel integration module (ipm) (above radio)
Interior lights system
Low reference
Nca
Night vision camera (at front of radiator)
Night vision fuse 10a
On signal
On/ off
Pnk
Rear fuse block
S200
S206
Signal drain wire
Tan
Video low reference
Video signal

INTERIOR LIGHTS

Courtesy Lamps Wiring Diagram, Except Hearse & Limousine (1 of 2) for Cadillac DeVille 2003

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List of elements for Courtesy Lamps Wiring Diagram, Except Hearse & Limousine (1 of 2) for Cadillac DeVille 2003:

(2002) h
(2003) k
A12
B10
B11
B12
C1 a
C1 d
Class 2 serial data line
Computer data lines system
Courtesy lamp 2
Driver door lock actuator
Driver door module (inside middle of left front door)
E11
E12
Front passenger door lock actuator
Front passenger door module (inside middle of right front door)
G200 (under left front door sill trim plate)
G201 (under right front door sill trim plate)
Ground
Headlamp switch
Hot at all times
I/p compartment lamp
I/p compartment lamp switch
Inadvertent power input
Instrument panel integration module (ipm) (above radio)
Int lamps
Int lp fuse 10a
Int lp relay
Interior lamp cntrl
Interior lamps on input
J11
J12
L11
L12
Left front door open input
Left rear door courtesy lamp
Left rear door lock actuator
Left rear door module (inside front of left rear door)
Left rear door open input
Rear fuse block (under left rear seat)
Rear integration module (rim) (behind right rear seat back)
Right front door open input
Right rear door courtesy lamp
Right rear door lock actuator
Right rear door module (inside front of right rear door)
Right rear door open input
S200
S206
Serial data class 2
Sp303 (right rear of passenger compt)
Splice pack sp200
Splice pack sp201
Tan
To right front door courtesy lamp (diagram 2 of 2)
To s304 (diagram 2 of 2)
To sp301 (diagaram 2 of 2)
To sp301 (diagram 2 of 2)

Courtesy Lamps Wiring Diagram, Except Hearse & Limousine (2 of 2) for Cadillac DeVille 2003

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List of elements for Courtesy Lamps Wiring Diagram, Except Hearse & Limousine (2 of 2) for Cadillac DeVille 2003:

A10
Courtesy lamp 1
From left rear door courtesy lamp (diagram 1 of 2)
From rear fuse block (diagram 1 of 2)
From sp303 (diagram 1 of 2)
G101 (on left side of radiator)
G402 (left rear corner of luggage compt, near left tail lamp connector)
Left cour- tesy lamp switch
Left courtesy lamp
Left front door courtesy lamp
Left front vanity mirror lamp
Left rear vanity mirror lamp
Overhead console
Overhead courtesy/ reading lamp
Reading lamp switch
Rear compartment lamp
Rear compartment lid release actuator
Rear integration module (rim) (behind right rear seat back)
Right courtesy lamp
Right courtesy lamp switch
Right front door courtesy lamp
Right front vanity mirror lamp
Right rear vanity mirror lamp
S304
S305
S306 (headliner harn, approx 86.5 cm from inside rearview mirror connector)
S337 (headliner harn, near middle of headliner)
S402
Sp301 (left rear of passenger compt)
Splice pack sp101
Splice pack sp402
Underhood lamp

Courtesy Lamps Wiring Diagram, Hearse & Limousine (1 of 2) for Cadillac DeVille 2003

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List of elements for Courtesy Lamps Wiring Diagram, Hearse & Limousine (1 of 2) for Cadillac DeVille 2003:

(not used)
A12
B10
B11
B12
C1 a
C1 d
C317
C319
Class 2 serial data line
Computer data lines system
Courtesy lamp 2
Driver door lock actuator
Driver door module (middle of left front door, behind door trim panel)
E11
E12
Front passenger door lock actuator
G200 (under left front door sill trim plate)
G201 (under right front door sill trim plate)
Ground
Headlamp switch
Hot at all times
I/p compartment lamp
I/p compartment lamp switch
Inadvertent power input
Instrument panel integration module (ipm) (above radio)
Int lamps
Int lp fuse 10a
Int lp relay
Interior lamp cntrl
Interior lamps on input
Left front door open input
Left rear door courtesy lamp
Left rear door lock actuator
Left rear door module (in front of left rear door, near radio speaker) (limousine only)
Left rear door open input
Passenger door module (middle of right front door, behind door trim panel)
Rear fuse block (under left rear seat)
Rear integration module (rim) (behind right rear seat back)
Right front door open input
Right rear door courtesy lamp
Right rear door lock actuator
Right rear door module (in front of right rear door, near radio speaker) (limousine only)
Right rear door open input
S200
S206
Serial data class 2
Sp303 (near center of right front door sill)
Tan
To left courtesy lamp switch (diagram 2 of 2)
To left front door courtesy light diagram 2 of 2
To right front courtesy lamp (diagram 2 of 2)
To sp301 (diagaram 2 of 2)
To sp301 diagram 2 of 2

Courtesy Lamps Wiring Diagram, Hearse & Limousine (2 of 2) for Cadillac DeVille 2003

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List of elements for Courtesy Lamps Wiring Diagram, Hearse & Limousine (2 of 2) for Cadillac DeVille 2003:

(body harn, approx 40 cm from battery voltage sensor connector) s323
(hearse only)
(limousine only)
(not used)
A10
B c329
B10
C1 b
C1 b3
C1 d
C329 a
Computer data lines system
Courtesy lamp 1
Door open input
From c317 (diagram 1 of 2)
From c329 (diagram 2 of 2)
From left rear courtesy light (diagram 1 of 2)
From rear fuse block (diagram 1 of 2)
From right front courtesy lamp (diagram 2 of 2)
From sp303 (diagram 1 of 2)
G101 (on left side of radiator support)
G201 (under right front door sill trim plate)
G302 (under right front seat, near inflatable restraint sensing diagnostic module)
G402 (left rear corner of luggage compt)
Ground
Left cour- tesy lamp switch
Left courtesy lamp
Left front door courtesy lamp
Left front vanity mirror lamp
Left middle door lock actuator
Left middle door module (in left middle door, behind door trim panel)
Left middle door open input
Left rear door lock actuator
Left rear vanity mirror lamp
Overhead console
Overhead courtesy/ reading lamp
Reading lamp switch
Rear compart- ment lamp
Rear compart- ment lid release actuator
Rear door release actuator
Rear integration module (rim) (behind right rear seat back)
Rear integration module (rim) (behind right side of rear seat back)
Right courtesy lamp
Right courtesy lamp switch
Right front door courtesy lamp
Right front vanity mirror lamp
Right middle door lock actuator
Right middle door module (in front of right middle door, near radio speaker)
Right middle door open input
Right rear door lock actuator
Right rear vanity mirror lamp
S305
S306 (headliner harn, approx 86.5 cm from inside rearview mirror connector)
S337 (headliner harn, near middle of headliner)
S402
Serial data class 2
Sp301 (left rear of passenger compt, approx 31.5 cm from cross car channel)
Splice pack sp101
Splice pack sp201
Splice pack sp302
Splice pack sp402
Underhood lamp

Instrument Illumination Wiring Diagram (1 of 3) for Cadillac DeVille 2003

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List of elements for Instrument Illumination Wiring Diagram (1 of 3) for Cadillac DeVille 2003:

(except dts)
(i/p harn, approx 65.5 cm from radio connector) s201
(in steering wheel, behind inflatable restraint steering wheel module)
5v ref
Ashtray lamp
Auxiliary hvac control module
C1 a1
C1 b4
C2 a1
C2 a3
C2 b3
C207
C209
C210
C3 b8
Control power
Dash integration module (dim) (on right side of dash, near blower motor)
Dimmer fuse 2a
Dimming ground
Dimming input
Dimr fuse 14 10a
G200 (under left front door sill trim plate)
G201 (under right front door sill trim plate)
G302 (under right front seat)
Hazard switch
Head
Head up display (hud) control
Headlamp switch
Headlights system
Horn systems
Hot at all times
I/p dimmer switch
I/p dimmer switch input
Incadescent dimming output
Inflatable restraint steering wheel coil module
Instrument panel integration module (ipm) (above radio)
Left driver information center (dic) switch
Left steering wheel controls
Nca
Nca f
Nca h
Off
Park
Park lamp input
Park lamp relay control
Park lamp switch input
Prk lp relay
Radio
Rear fuse block (under left rear seat)
Right driver information center (dic) switch
Right steering wheel controls
S200
S205 (i/p harn, approx 8 cm from inst cluster breakout)
S206
S219 (in steering column harness)
S223
S224
S225
S226
S229
S230
Sensor return
Sp302 (left rear of passenger compt, approx 24 cm from cross car channel)
Splice pack sp200
Splice pack sp201
Splice pack sp302
Steering column fuse holder
To s302 (diagram 3 of 3)

Instrument Illumination Wiring Diagram (2 of 3) for Cadillac DeVille 2003

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List of elements for Instrument Illumination Wiring Diagram (2 of 3) for Cadillac DeVille 2003:

(left front door trim harn, near door trim panel)
(left rear door trim harn, inside left rear door)
(right front door trim harn, near door trim panel)
(right rear door trim harn, inside right rear door)
A11
A12
B10
B11
C1 b6
C1 b8
C2 a12
C2 b8
C2 g
C3 b3
Class 2 serial data line
Computer data lines system
Dash integration module (dim) (on right side of dash, near blower motor)
Driver door lock switch
Driver door switch assembly
Driver heated seat switch
Front passenger door lock switch
Front passenger heated seat switch
Front passenger power window switch
G302 (under right front seat)
Ground
Incandescent dimming output
Instrument panel cluster
Instrument panel integration module (ipm) (above radio)
Left front door module (middle of left front door, behind trim panel)
Left rear door lock switch
Left rear door module (lrdm) (in front of left rear door, near radio speaker)
Left rear heated seat switch
Left rear power window switch
Left rear seat lumbar switch
Memory/ personalizaton function switch
Radio
Red
Right front door module (in right front door, behind door trim panel)
Right rear door lock switch
Right rear door module (rrdm) (in front of right rear door, near radio speaker)
Right rear heated seat switch
Right rear power window switch
Right rear seat lumbar switch
S501 (left front door trim harn, near door trim panel)
S502
S600 (right front door trim harn, near door trim panel)
S601
S700
S702
S703 (left rear door trim harn, inside left rear door)
S704
S800
S801
S802 (right rear door trim harn, inside right rear door)
S803
Splice pack sp302

Instrument Illumination Wiring Diagram (3 of 3) for Cadillac DeVille 2003

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List of elements for Instrument Illumination Wiring Diagram (3 of 3) for Cadillac DeVille 2003:

(dts only)
Auxiliary hvac control module
C2 g
C3 b3
Class 2 serial data line
Computer data lines system
From s201 (diagram 1 of 3)
G201 (under right front door sill trim plate)
G302 (under right front seat)
Ground
Incandescent dimming output
Left middle door lock switch
Left middle door module (inside left middle door)
Left middle power window switch
Limousine only
Nca
Right middle door lock switch
Right middle door module (inside right middle door)
Right middle power window switch
S206
S207
S300 (in console harn, approx 68.5 cm from rear heater & a/c control module connector)
S302 (in console harn, approx 57 cm from rear blower motor)
S702 (left rear door trim harn, inside left rear door)
S801 (right rear door trim harn, inside right rear door)
Shift control assembly
Splice pack sp201
Splice pack sp302
Traction control switch

MEMORY SYSTEMS

Memory Power Tilt & Power Telescopic Wiring Diagram for Cadillac DeVille 2003

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List of elements for Memory Power Tilt & Power Telescopic Wiring Diagram for Cadillac DeVille 2003:

Battery
Computer data lines system
Data line
G200 (under left front door sill trim plate)
Ground
Hot at all times
Mem t&t fuse 10a
Out
Pnk
Pwr t&t fuse 30a
Rear fuse block
Red
S309
Steering column module (in steering column)
Tele act
Tele pos
Telescope actuator
Tilt act
Tilt actuator
Tilt pos
Tilt/ telescope switch
Tilt/tele sw

Memory Seat & Mirrors Wiring Diagram, with Power Lumbar, with Massage (1 of 2) for Cadillac DeVille 2003

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List of elements for Memory Seat & Mirrors Wiring Diagram, with Power Lumbar, with Massage (1 of 2) for Cadillac DeVille 2003:

(left front seat harn, 13.5 cm from left front heated seat cushion element connector)
(left front seat harn, 16 cm from left front heated seat cushion element connector)
5v ref
Backward ctrl
Bat (+)
Batt (+)
Battery
Class 2 serial data line
Computer data lines system
Dn ctrl
Down
Driver seat adjuster switch
Driver seat front vertical position motor
Driver seat front vertical position sensor
Driver seat lumbar switch
Driver seat massage module (in seat back)
Driver seat recline motor
Driver seat recline position sensor
E tan
E10
E11
E12
E13
E14
E15
E16
Entire seat back
Entire seat back in
Entire seat forward
Entire seat forward in
F10
F11
F12
F13
F14
F15
F16
Forward ctrl
Front height ctrl down
Front height ctrl up
Front height down
Front height down in
Front height pos sens
Front height up
Front height up input
Fwr/bwd pos in
G302
Gnd
Ground
Headrest down
Headrest down in
Headrest up
Headrest up in
Hot at all times
Low ref
Lum dn sig
Lum dn sw
Lum up sig
Lum up sw
Lumbar ctrl down
Lumbar ctrl in
Lumbar ctrl out
Lumbar ctrl up
Lumbar down input
Lumbar in input
Lumbar in/out pos in
Lumbar out input
Lumbar up input
Lumbar up/down pos in
Mem t&t fuse 10a
Memory seat module (under driver's seat)
Motor dn
Motor up
Out
Pnk
Pwr seat circuit breaker 30a
Rear fuse block
Rear height ctrl down
Rear height ctrl up
Rear height down
Rear height down in
Rear height pos sensor
Rear height up
Rear height up input
Recline back
Recline back in
Recline ctrl back
Recline ctrl forward
Recline forward
Recline forward in
Recline position sensor
Red
S324
S325
S326
S327
S328
Sensors feed
Sensors return
Solid state
Splice pack sp302 (under right front seat)
Tan
Up ctr
Vert pos sen
Vert pos sig

Memory Seat & Mirrors Wiring Diagram, with Power Lumbar, with Massage (2 of 2) for Cadillac DeVille 2003

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List of elements for Memory Seat & Mirrors Wiring Diagram, with Power Lumbar, with Massage (2 of 2) for Cadillac DeVille 2003:

(in left outside rearview mirror)
(left front door trim harn, 23.5 cm from c501)
1 input
2 input
B11
Batt(+)
Computer data lines system
Down
Down ctrl
Driver door module (in front of left front door, near radio speaker)
Driver door switch assembly
Driver outside rearview mirror
Driver seat
Driver seat horizontal
Driver seat lumbar horizontal motor
Driver seat lumbar horzontal position sensor
Driver seat lumbar vertical motor
Driver seat lumbar vertical position sensor
Driver seat rear vertical
Exit
Gnd
Horizon pos sens in
Horizontal
Horizontal position sensor
Interior lights system
Left
Left ctrl
Left mir
Memory personalization function switch
Memory set
Mirror switches
Motor
Passenger front door module (in front of right front door, near radio speaker)
Passenger outside rearview mirror
Pnk
Position sensor
Red
Right
Right ctrl
S340
S341
S501
Serial data
Set input
Solid state
Tan
Up ctrl
Vertical
Vertical pos sens in

Memory Seat & Mirrors Wiring Diagram, with Power Lumbar, without Massage (1 of 2) for Cadillac DeVille 2003

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List of elements for Memory Seat & Mirrors Wiring Diagram, with Power Lumbar, without Massage (1 of 2) for Cadillac DeVille 2003:

(left front seat harn, 13.5 cm from left front heated seat cushion element connector)
(left front seat harn, 16 cm from left front heated seat cushion element connector)
Backward ctrl
Batt (+)
Class 2 serial data line
Computer data lines system
Down
Driver seat adjuster switch
Driver seat front vertical position motor
Driver seat front vertical position sensor
Driver seat lumbar switch
Driver seat recline motor
Driver seat recline position sensor
E tan
E10
E11
E12
E13
E14
E15
E16
Entire seat back
Entire seat back in
Entire seat forward
Entire seat forward in
F10
F11
F12
F13
F14
F15
F16
Forward ctrl
Front height ctrl down
Front height ctrl up
Front height down
Front height down in
Front height pos sens
Front height up
Front height up input
Fwr/bwd pos in
G302
Gnd
Headrest down
Headrest down in
Headrest up
Headrest up in
Hot at all times
Lumbar ctrl down
Lumbar ctrl in
Lumbar ctrl out
Lumbar ctrl up
Lumbar down input
Lumbar in input
Lumbar in/out pos in
Lumbar out input
Lumbar up input
Lumbar up/down pos in
Mem t&t fuse 10a
Memory seat module (under driver's seat)
Out
Pnk
Pwr seat circuit breaker 30a
Rear fuse block
Rear height ctrl down
Rear height ctrl up
Rear height down
Rear height down in
Rear height pos sensor
Rear height up
Rear height up input
Recline back
Recline back in
Recline ctrl back
Recline ctrl forward
Recline forward
Recline forward in
Recline position sensor
S325
S326
S327
S328
Sensors feed
Sensors return
Solid state
Splice pack sp302 (under left front seat)
Tan

Memory Seat & Mirrors Wiring Diagram, with Power Lumbar, without Massage (2 of 2) for Cadillac DeVille 2003

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List of elements for Memory Seat & Mirrors Wiring Diagram, with Power Lumbar, without Massage (2 of 2) for Cadillac DeVille 2003:

(left front door trim harn, 23.5 cm from c501)
1 input
2 input
B11
Batt(+)
Computer data lines system
Down
Down ctrl
Driver door module (in front of left front door, near radio speaker)
Driver door switch assembly
Driver outside rearview mirror
Driver seat
Driver seat horizontal
Driver seat lumbar horizontal motor
Driver seat lumbar horzontal position sensor
Driver seat lumbar vertical motor
Driver seat lumbar vertical position sensor
Driver seat rear vertical
Exit
Gnd
Horizon pos sens in
Horizontal
Horizontal position sensor
Interior lights system
Left
Left ctrl
Left mir
Memory personalization function switch
Memory set
Mirror switches
Motor
Passenger front door module (in front of right front door, near radio speaker)
Passenger outside rearview mirror
Pnk
Position sensor
Right
Right ctrl
S501
Serial data
Set input
Solid state
Tan
Up ctrl
Vertical
Vertical pos sens in

Memory Seat & Mirrors Wiring Diagram, without Power Lumbar Wiring Diagram (1 of 2) for Cadillac DeVille 2003

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List of elements for Memory Seat & Mirrors Wiring Diagram, without Power Lumbar Wiring Diagram (1 of 2) for Cadillac DeVille 2003:

(left front seat harn, 13.5 cm from left front heated seat cushion element connector)
(left front seat harn, 16 cm from left front heated seat cushion element connector)
A10
A11
A12
A13
A14
A15
A16
B10
B11
B12
B13
B14
B15
B16
Backward ctrl
Batt (+)
Class 2 serial data line
Computer data lines system
Drive seat belt tower position sensor
Driver seat adjuster switch
Driver seat belt tower motor
Driver seat front vertical position motor
Driver seat front vertical position sensor
Driver seat recline motor
Driver seat recline position sensor
E tan
Entire seat back
Entire seat back in
Entire seat forward
Entire seat forward in
F12
Forward ctrl
Front height ctrl down
Front height ctrl up
Front height down
Front height down in
Front height pos sens
Front height up
Front height up input
Fwr/bwd pos in
G302
Gnd
Headrest ctrl down
Headrest ctrl up
Headrest down
Headrest down in
Headrest pos sensor
Headrest up
Headrest up in
Hot at all times
Mem t&t fuse 10a
Memory seat module (under driver's seat)
Pwr seat circuit breaker 30a
Rear fuse block
Rear height ctrl down
Rear height ctrl up
Rear height down
Rear height down in
Rear height pos sensor
Rear height up
Rear height up input
Recline back
Recline back in
Recline ctrl back
Recline ctrl forward
Recline forward
Recline forward in
Recline position sensor
S309
S325
S326
S327
Sensors feed
Sensors return
Solid state
Splice pack sp302 (under left front seat)
Tan

Memory Seat & Mirrors Wiring Diagram, without Power Lumbar Wiring Diagram (2 of 2) for Cadillac DeVille 2003

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List of elements for Memory Seat & Mirrors Wiring Diagram, without Power Lumbar Wiring Diagram (2 of 2) for Cadillac DeVille 2003:

(left front door trim harn, 23.5 cm from c501)
1 input
2 input
B11
Batt(+)
Computer data lines system
Down
Down ctrl
Driver door module (in front of left front door, near radio speaker)
Driver door switch assembly
Driver outside rearview mirror
Driver seat
Driver seat horizontal
Driver seat rear vertical
Exit
Gnd
Horizon pos sens in
Horizontal
Horizontal position sensor
Interior lights system
Left
Left ctrl
Left mir
Memory personalization function switch
Memory set
Mirror switches
Motor
Passenger front door module (in front of right front door, near radio speaker)
Passenger outside rearview mirror
Position sensor
Right
Right ctrl
S501
Serial data
Set input
Solid state
Tan
Up ctrl
Vertical
Vertical pos sens in

NAVIGATION

Navigation Wiring Diagram for Cadillac DeVille 2003

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List of elements for Navigation Wiring Diagram for Cadillac DeVille 2003:

A w/ voice rec mic
B w/o voice rec mic
Bare
Cellular mic sig
Cellular telephone module (under right side of rear package shelf)
Class 2 serial data
Coax cable
Computer data lines system
Drain wire
E16
F14
F15
F16
G301 (under left front corner of rear seat)
Global positioning satellite antenna (under right side of rear speaker shelf)
Gps antenna sig
Ground
Hot at all times
Instrument cluster system
Nav fuse 10a
Power distribution system
Radio
Rear fuse block
Splice pack sp301
Tan
Vehicle communication interference module (behind right rear seat back)
Vss
W/ telephone provision
W/o telephone provision

Parking Assistant Wiring Diagram for Cadillac DeVille 2003

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List of elements for Parking Assistant Wiring Diagram for Cadillac DeVille 2003:

Amber center ind ctrl
Amber center indicator
Amber outside ind ctrl
Amber outside indicator
Backup lamp voltage
Diagnostic input
Engine controls system
G401 (right rear corner of rear compt, near left taillamp connector)
Ground
Hot at all times
Hot in on or start
Information center telltale assembly
Left rear corner object sensor (on left corner of rear bumper fascia)
Left rear middle object sensor (on left middle of rear bumper fascia)
Low ref
Lr corner sensor sig
Lr middle sensor sig
Pnk
Prk/rev fuse 10a
Rear fuse block
Rear integration module (behind right rear seat back)
Rear object sensor control module (at right side of rear compartment)
Rear park chime sig
Rear parking assist diagnostic connector (at right side of rear compt)
Red
Red ind ctrl
Red indicator
Reverse relay
Right rear corner object sensor (on right corner of rear bumper fascia)
Right rear middle object sensor (on right middle of rear bumper fascia)
Rr corner sensor sig
Rr middle sensor sig
Run/ crank fuse 10a
S407 (in ultrasonic rear parking assist harness, 36.5 cm from c408)
S408 (in ultrasonic rear parking assist harness, 56.5 cm from c408)
Sensor low ref
Sensor signal
Sensor voltage
Splice pack sp401
Telltail assy voltage
Vss signal

POWER DISTRIBUTION

Power Distribution Wiring Diagram (1 of 8) for Cadillac DeVille 2003

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List of elements for Power Distribution Wiring Diagram (1 of 8) for Cadillac DeVille 2003:

(at right side of engine compartment) underhood fuse block
(in dash harness approximately 31.5 cm (12.4 in) from 6 cavity gray in-line connector between dash harness & dash pad harness, near inflatable restraint i/p module, right side of dash) s209
Abs fuse 50a
Air pump fuse 50a
Aldl fuse 10a
Auxiliary generator
Battery
Coil
Contact
Cool fan 1 fuse 30a
Cool fan 2 fuse 30a
Coolfan 1 relay
Coolfan 2 relay
Coolfan s/p relay
Data link connector (dlc) (partial)
Drl fuse 15a
Drl relay
Electronic brake control module (ebcm)
Evaporative emissions (evap) canister purge solenoid
Fuel injector
Fusible link
Generator
Hdlp hi bm relay
Hdlp lo bm relay
Horn fuse 15a
Horn relay
Ign 1 fuse 10a
Injr 1 fuse 10a
Injr 2 fuse 10a
Instrument panel cluster (ipc)
Ip fuse 10a
Mass airflow (maf) sensor
Nca
Pcm batt fuse 10a
Pcm/ign fuse 10a
Pnk
Powertrain control module (pcm)
Red
Secondary air injection (air) pump relay
Secondary air injection (air) pump relay (if equipped)
Secondary air injection (air) solenoid (if equipped)
Start 1 relay
Start circuit breaker 30a
Starter solenoid
Starting/charging system
Theft deterrent control module
To rear fuse block (diagram 2 of 8)
To underhood fuse block (acc relay) (diagram 2 of 8)
To underhood fuse block (ign 1 relay) (diagram 2 of 8)
Valet switch

Power Distribution Wiring Diagram (2 of 8) for Cadillac DeVille 2003

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List of elements for Power Distribution Wiring Diagram (2 of 8) for Cadillac DeVille 2003:

(in transaxle harness, approximately 33.5 cm (13.2 in) from 10 cavity in-line connector in transaxle) s113
1-2 shift solenoid valve
2-3 shift solenoid valve
A/c clu relay
A12
Ac clu fuse 15a
Acc relay
Air conditioning system
Automatic transaxle
Auxiliary blower motor (if equipped)
Auxiliary generator (if equipped)
Auxiliary generator test connector (if equipped)
B12
Blower motor control processor
Coil mdl fuse 20a
Cr cont fuse 10a
Cruise control module (ccm)
D12
Dash integration module (dim)
Dash integration module (dim) (behind right side of dash, near blower motor)
Dim fuse 10a
Driver door module (ddm)
Drv mdl fuse 10a
E10
F12
Fog fuse 10a
Fog lp relay
From battery (diagram 1 of 8)
From underhood fuse block (injr 1 fuse, 10a) (diagram 1 of 8)
From underhood fuse block (start circuit breaker, 30a) (diagram 1 of 8)
Front passenger heated seat module (if equipped)
G104 (near windshield washer fluid reservoir filler neck)
Generator
Headlights system
Heated oxygen sensor (ho2s) (bank 1, sensor 2)
Heated oxygen sensor (ho2s) (bank 2, sensor 1)
Htdst lr fuse 10a
Htdst rf fuse 10a
Htdst rr fuse 10a
Hvac blo fuse 40a
Ign 1 relay
Ignition control module (icm) bank 1
Ignition control module (icm) bank 2
Left rear heated seat module (if equipped)
Nca
Oxy sen fuse 10a
Pass mdl fuse 10a
Passenger front door module (pfdm)
Pnk
Pwr t & t fuse 30a
Rear fuse block (under left rear seat)
Red
Right rear heated seat module (if equipped)
Rr blo fuse 10a
S126
Splice pack sp104
Steering column module (if equipped)
To ignition switch (cavity 7) (via splice s215) (diagram 5 of 8)
To ignition switch (cavity 8) (diagram 6 of 8)
To rear fuse block (rrdr mdl fuse, 10a) (diagram 3 of 8)
Torque converter clutch pulse width modulation (tcc pwm) solenoid valve
Trans fuse 10a
Tsig/ haz fuse 15a
Turn/signal hazard flasher module
Underhood fuse block (at right side of engine compartment)
Wiper/washer system (power for acc fuse (15a) & wsw fuse (30a)

Power Distribution Wiring Diagram (3 of 8) for Cadillac DeVille 2003

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List of elements for Power Distribution Wiring Diagram (3 of 8) for Cadillac DeVille 2003:

(ac9)
(al2, am3)
(deville)
(dhs/dts)
(in body harness approximately 69 cm (27.2 in) from 6 cavity in-line connector, left rear door harness to body harness, left side of passenger compartment in door pillar) s316
(in body harness approximately 69 cm (27.2 in) from 7 cavity in-line connector, right rear door harness to body harness, right side of passenger compartment in door pillar) s321
(in body harness approximately 87 cm (34.3 in) from 18 cavity in-line connector, power seat harness to body harness, under left front seat) s309
(in left front seat harness, approximately 22 cm (8.7 in) from left front power seat switch connector) s328
(in left middle door harness) s356
(in right middle door harness) s357
A11
A12
Audio amp fuse 30a
Auxiliary hvac control module
B11
C15
Dash integration module (dim)
Door lock relay
Driver adaptive lumbar seat module
Driver door module (ddm)
Driver heated seat module
Driver seat adjuster switch
Driver seat lumbar switch
E10
Except hearse
Except limousine
F11
From rear fuse block (tsig/haz fuse, 15a) (diagram 2 of 8)
Front passenger adaptive seat lumbar module
Hearse
Htdst lf fuse 10a
Hvac bat fuse 10a
Ign sw fuse 15a
Instrument panel integration module (ipm)
Left door park relay assembly
Left middle door module (lmdm)
Left rear door module (lrdm) (if equipped)
Limousine
Mem t & t fuse 10a
Nav fuse 10a
Passenger front door module (pfdm)
Pwr wdo c.b. 30a
Radio
Radio amplifier
Rear door module (lrdm)
Rear fuse block (under left rear seat)
Rear integration module (rim)
Red
Remote control door lock receiver (rcdlr)
Right middle door module (rmdm)
Right middle door park relay assembly
Right rear door module (rrdm)
Right rear door module (rrdm) (if equipped)
Rrdr mdl fuse 10a
Seat memory module
Steering column module
Stop lp fuse 15a
Stoplamp/ a/t shift lock control switch
To ignition switch (cavities 4 & 6) (diagram 6 of 8)
To rear fuse block (audio fuse, 15a) (diagram 4 of 8)
Traffic information receiver (if equipped)
W/adjuster seat, auto, contouring control
W/control seat, power lumbar
W/memory seat adjuster, mirror, power driver personalization

Power Distribution Wiring Diagram (4 of 8) for Cadillac DeVille 2003

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List of elements for Power Distribution Wiring Diagram (4 of 8) for Cadillac DeVille 2003:

(in body harness, on right rear of passenger compartment, approximately 22.5 cm (9 in) from cross car channel) s317
(in onstar jumper harness, between 30 cavity in-line connector & breakout to vehicle interface unit (viu) connectors) s361
18 cavity in-line connector, body harness to power seat harness, under left front seat) s324
18 cavity in-line connector, passenger power seat harness to body harness, under right front seat) s330
A12
Audio fuse 15a
Cellular telephone module
Cellular telephone module (if equipped)
Coil
Contact
Driver seat adjuster switch
Driver seat lumbar switch
Driver seat massage module (if equipped)
E12
E16
Export ltg/ pwr lk fuse 15a
F12
From fuse block- rear (pwr wdo cb, 30a) (diagram 3 of 8)
Front passenger seat adjuster switch
Front passenger seat lumbar switch
Front passenger seat massage module (if equipped)
Fuse block- rear (under left rear seat)
Left middle door module (lmdm)
Memory seat module (msm)
Park position door relay
Pwr seat c.b. 30a
Radio
Remote playback device- (cd changer)
Right middle door module (rmdm)
To fuse block-rear (rrlum/pwr ant fuse, 20a) (diagram 5 of 8)
Vehicle interface unit (viu)
W/ limousine
W/control seat power lumbar or w/control seat power lumbar & massage
W/control seat power lumbar or w/control seat, power lumbar & massage
W/control seat, power lumbar & massage
W/memory seat adjuster, mirror, power driver personalization
W/o control seat power lumbar & w/o control seat, power lumbar & massage
W/o control seat, power lumbar & massage
W/o memory seat adjuster, mirror, power driver personalization
W/o vehicle interface unit (viu)
W/vehicle interface unit (viu)

Power Distribution Wiring Diagram (5 of 8) for Cadillac DeVille 2003

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List of elements for Power Distribution Wiring Diagram (5 of 8) for Cadillac DeVille 2003:

(in body harness, approximately 53.5 cm (21.1 in) from 40 cavity in-line connector, body harness to dash harness, under right side of dash) s215
Body fuse 15a
Coil
Contact
Cvrtd fuse 10a
Damper relay
Dash integration module (dim) (behind right side of dash, near blower motor)
Digital radio receiver
Electronic suspension control (esc) module (dts)
Electronic suspension system
Evaporative emissions (evap) canister vent solenoid
F/tnk dr rel relay
F2 c2
From rear fuse block (power seat c.b., 30a) (diagram 4 of 8)
From rear fuse block i (ign 1 relay) (diagram 5 of 8)
From underhood fuse block (connector c2 cavity e10) (diagram 2 of 8)
Fuse holder- steering column (near base of steering column)
Ground information not available
Ign 1 fuse 10a
Ign 1 relay
Inflatable restraint sensing & diagnostic module (sdm)
Inflatable restraint steering wheel module coil
Inside rearview mirror
Instrument panel cluster (ipc)
Int lp fuse 10a
Int lp relay
Left rear seat lumbar switch
Nca
Pnk
Pnk (in steering column harness) s222
Radio antenna module
Rap fuse 30a
Rap relay
Rear fuse block (under left rear seat)
Rear integration module (rim)
Rear object sensor control module
Rear window sunshade module (if equipped)
Right rear seat lumbar switch
Rrlum/ pwr ant fuse 20a
S-dar fuse 5a
Sir fuse 10a
Steering wheel controls (left)
Stoplamp switch
Sunroof module
Sunshade fuse 10a
Switch fuse 2a
To ignition switch (cavity 7) (diagram 6 of 8)
To rear fuse block (body fuse, 15a) (diagram 5 of 8)
To rear fuse block (prk brk fuse, 20a) (diagram 6 of 8)
Trk rel relay
Turn signal switch
Vent sol fuse 10a
W/control seat, power lumbar
W/hearse

Power Distribution Wiring Diagram (6 of 8) for Cadillac DeVille 2003

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List of elements for Power Distribution Wiring Diagram (6 of 8) for Cadillac DeVille 2003:

(in body harness, approximately 73.2 cm (28.8 in) from 40 cavity in-line connector, dash harness to body harness near park brake pedal) s213
(in steering column harness) s220
A11
Acc
Coil
Contact
Dash integration module (dim) (behind right side of dash, near blower motor)
From fuse block- rear (rap fuse, 30a) (diagram 5 of 8)
From rear fuse block (ign 1 relay) (via splice s215) (diagram 5 of 8)
From rear fuse block (ign sw fuse, 15a) (connector c1, cavity e10) (diagram 3 of 8)
From underhood fuse block (acc relay) (connector c2, cavity d2) (diagram 2 of 8)
Ignition switch
Nca
Off
Pnk
Powertrain control module (pcm) (at left side of engine compartment, inside air cleaner)
Prk brk a relay
Prk brk b relay
Prk/brk fuse 20a
Rear fuse block (under left rear seat)
Rr defog fuse 40a
Rr defog relay
S218
Start
Theft deterrent control module (in steering column)
To fuse block-rear (elc fuse, 30a) (diagram 7 of 8)
To fuse block-rear (elc relay, coil rtn side) (diagram 7 of 8)

Power Distribution Wiring Diagram (7 of 8) for Cadillac DeVille 2003

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List of elements for Power Distribution Wiring Diagram (7 of 8) for Cadillac DeVille 2003:

(ground info not available)
(in body harness, approximately 35.5 cm (14.0 in) from dash integration module connector c3) s216
(in dash harness, approximately 72.1 cm (28.4 in) from radio connector) s206
Automatic level control (alc) compressor
B10
B12
C/ltr 1 fuse 20a
C/ltr 2 fuse 20a
Cigar fuse 40a
Cigar relay
Coil
Contact
D10
D12
E12
Elc fuse 30a
Elc relay
Except hearse
Except limousine
F/pmp fuse 20a
F/pmp relay
From rear fuse block (rr defog fuse, l 40a) (diagram 6 of 8)
From rear fuse block (rr defog relay, k coil rtn side) (diagram 6 of 8)
Front cigar lighter
G201 (under right front door sill trim plate)
G302 (under right front seat, near inflatable restraint sensing diagnostic module)
Left middle cigar lighter
Left rear cigar lighter
Limousine
Lk/cyl relay
Nca
Park relay
Passenger seat auxiliary outlet
Pnk
Prk/rev fuse 10a
Rear fuse block (under left rear seat)
Rear integration module (rim) (behind right rear seat back)
Red
Rev/ lkout relay
Rev/lk fuse 10a
Reverse relay
Right middle cigar lighter
Right rear cigar lighter
Splice pack sp201
Splice pack sp302
To fuse block-rear (ign 3 relay) (diagram 8 of 8)
To rear fuse block (ign 3 relay, coil rtn side) (diagram 8 of 8)
Underhood fuse block (at right side of engine compartment)

Power Distribution Wiring Diagram (8 of 8) for Cadillac DeVille 2003

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List of elements for Power Distribution Wiring Diagram (8 of 8) for Cadillac DeVille 2003:

(design 1)
(design 2)
(diagram 7 of 8)
(in console harness, approximately 50.5 cm (19.9 in) from 30 cavity in-line connector between console harness & dash harness near rear blower motor) s301
(in left front seat harness, approximately 19 cm (7.5 in) from left front heated seat module connector c1) s329
(in rear seat harness, approximately 15.5 cm (6.1 in) from 30 cavity in-line connector, rear heated seat harness to body harness, near rear fuse block) s333
(in right front seat harness, approximately 29 cm (11.4 in) from 18 cavity in-line connector passenger power seat harness to body harness, under right front seat) s332
A/t shift lock control solenoid
A10
A11
Abs fuse 10a
Auxiliary hvac control module
B12
C1 h
C11
C12
D11
Dash integration module (dim)
Deville/ dhs
Dimr fuse 10a
Driver adaptive seat lumbar module
Driver heated seat module
Dts
E11
Electronic brake control module (ebcm)
Electronic suspension control module (if equipped)
Exterior lights system (license lamps)
F11
From fuse block-rear (f/pmp fuse, 20a) n
From fuse block-rear (ign 3 relay) (diagram 8 of 8)
From fuse block-rear (park relay, coil rtn side) (diagram 7 of 8)
Front passenger adaptive seat lumbar module
Front passenger heated seat module
Fuse block- rear (under left rear seat)
G301 (under left front corner of rear seat)
Head-up display (hud) (if equipped)
Head-up display (hud) switch (if equipped)
Hvac fuse 10a
Ign 3 relay
Ign3 fuse 10a
Inside air temperature sensor
Instrument panel integration module (ipm)
Interior & exterior lights systems
Left rear heated seat module
Nca
Night vision camera (if equipped)
Night vision fuse 10a
Prk lp relay
Red
Right rear heated seat module
Splice pack sp301
To fuse block-rear (night vision fuse, 10a) (diagram 8 of 8)
Turn signal switch
W/adjuster seat, auto, contouring control
W/heated seats
W/o adjuster seat, auto, contouring control

POWER DOOR LOCKS

Power Door Locks Wiring Diagram, Hearse for Cadillac DeVille 2003

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List of elements for Power Door Locks Wiring Diagram, Hearse for Cadillac DeVille 2003:

(body harn, left rear of passenger compartment) s313
(in right front door, approx 23 cm from speaker conn breakout)
(in right front door, approx 27 cm from speaker conn breakout)
A12
Act lk out
Act unlk out
Ajar
B10
B11
B12
Battery
Circuit breaker 30a
Computer data lines system
Door ajar in
Door lock relay (right rear of passenger compartment)
Door open in
Dr lk ctrl
Dr unlk ctrl
Driver door lock cylinder switch
Driver door lock switch
Driver door module
Driver door switch assembly
Drv mdl fuse 10a
Front passenger door lock actuator
Front passenger door lock switch
G200 (under left front door sill trim plate)
G201 (under right front door sill trim plate)
G301 (under left rear corner of rear seat)
Grd
Ground
Hot at all times
Ign sw fuse 15a
Interior lights system
Key cyl in
Left front door lock actuator
Lock
Lock in
Module id
Nca
Not used
Open
Pass mdl fuse 10a
Passenger front door module
Power windows system
Rear fuse block
Remote control door lock receiver (above left rear wheelwell)
S312 (body harn, left rear of passenger compartment)
S316
S500
S501 (in left front door)
S600 (in right front door)
S602
S603
Serial data
Sp200
Sp201
Sp301
Tan
Unlock
Unlock in

Power Door Locks Wiring Diagram, Sedan & Limousine (1 of 2) for Cadillac DeVille 2003

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List of elements for Power Door Locks Wiring Diagram, Sedan & Limousine (1 of 2) for Cadillac DeVille 2003:

(in right front door) s600
A12
Act lk out
Act unlk out
Ajar
B10
B11
B12
Battery
Computer data lines system
Door ajar in
Door open in
Dr lk ctrl
Dr unlk ctrl
Driver door lock cylinder switch
Driver door lock switch
Driver door module
Driver door switch assembly
Drv mdl fuse 10a
Front passenger door lock actuator
Front passenger door lock switch
Front passenger door module
G200 (under left front door sill trim plate)
G201 (under right front door sill trim plate)
G301 (under left front corner of rear seat)
Grd
Ground
Hot at all times
Ign sw fuse 15a
Interior lights system
Interior lights system (sedan only)
Key cyl in
Left front door lock actuator
Lock
Lock in
Memory & interior lights systems (sedan only)
Module id
Nca
Open
Pass mdl fuse 10a
Power windows system
Rear fuse block
Remote control door lock receiver (under center rear package tray)
S500
S501 (in left front door)
Serial data
Sp200
Sp201
Sp301
Tan
Unlock
Unlock in

Power Door Locks Wiring Diagram, Sedan & Limousine (2 of 2) for Cadillac DeVille 2003

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List of elements for Power Door Locks Wiring Diagram, Sedan & Limousine (2 of 2) for Cadillac DeVille 2003:

(in right middle door)
(in right rear door)
(sedan only)
(sedan only) & power windows systems
A12
Act lk out
Act unlk out
Act- uator
Ajar
B10
B12
Battery
C2 c3
Computer data lines system
D8 c2
Dash integration module (right side of dash)
Door ajar
Door ajar in
Door open
Door open in
Dr lk ctrl
Dr lk in
Dr unlk ctrl
Dr unlk in
Export lighting fuse 15a
G201 (under right front door sill trim plate)
G302 (under right front seat)
Ground
Hot at all times
Interior lights
Interior lights & power windows systems
Interior lights system
Left middle door lock actuator (limousine only)
Left middle door lock switch
Left middle door module (limousine only)
Left middle door park relay assembly (in left middle door)
Left middle door release switch
Left rear door lock actuator
Left rear door lock switch
Left rear door module
Limousine only
Lock
Module id
Nca
Open
Park position door relay (behind right rear seat) (limousine only)
Park position dr rly ctrl
Power window circuit breaker 30a
Power windows system
Rear fuse block
Relay
Right middle door lock actuator (limousine only)
Right middle door lock switch
Right middle door module (limousine only)
Right middle door park relay assembly (in right middle door)
Right middle door release switch
Right rear door lock actuator
Right rear door lock switch
Right rear door module
Rrdr mdl fuse 10a
S314 (body harn, near left door pillar)
S315 (body harn, near left door pillar)
S317
S319 (body harn, near right door pillar)
S320 (body harn, near right door pillar)
S348 (in left middle door)
S349
S350
S351
S352
S353
S356
S357
S701
S703 (in left rear door)
S802
Serial data
Sp201
Sp302
Tan
Unlock

POWER MIRRORS

Power Mirrors Wiring Diagram for Cadillac DeVille 2003

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List of elements for Power Mirrors Wiring Diagram for Cadillac DeVille 2003:

(left front door trim harn, in left front door) s501
A12
A7 c3
Automatic day/
B11
B12
Batt
Battery (b+)
Battery b+
Defogger system (heated mirror)
Down ctrl
Driver door lock switch
Driver door module (ddm)
Driver door switch asembly
Driver outside rear view mirror
Drv mdl fuse 10a
E2 c3
Ec feed
Ec rerurn
Ec return
Except hearse & limousine
Exterior lights system
F1 c3
F11 c1
F2 c3
G200 (under left front door sill trim plate)
G316 (under right front door sill trim plate)
G402 (on lower left corner of trunk, forward of tail lamp)
Gnd
Ground
Heating element
Horizontal motor
Hot at all times
Ign 3 rr fuse 10a
Inside rear view mirror
Interior lights system
Keypad led
Keypad pwr
Keypad signal
L mirror input
Left
Left ctrl
Left mirror
Mirror dn input
Mirror element
Mirror l input
Mirror r input
Mirror up input
Navigation system (ultrasonic rear parking assist)
Night input sig
Pass mdl fuse 10a
Passenger front door module (pdm)
Passenger outside rear view mirror
Pnk
Pwr wdo circuit breaker 30a
R mirror input
Rear fuse block (under left rear seat)
Reverse relay
Reverse sig
Right
Right ctrl
Right mirror
S303
S500
Serial data
Splice pack sp300 (left rear of passenger compt, front of cross car channel)
Splice pack sp304 (right rear of passenger compt, front of cross car channel)
Up ctrl
Vehicle communication interface unit (behind right rear seat back)
Vertical motor
W/ vehicle commun- ication system
W/o vehicle commun- ication system

POWER SEATS

8-Way Adjustable Power Seat Wiring Diagram for Cadillac DeVille 2003

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List of elements for 8-Way Adjustable Power Seat Wiring Diagram for Cadillac DeVille 2003:

Back
Driver left seat horizontal motor
Driver seat adjuster switch
Driver seat front vertical motor
Driver seat rear vertical motor
Driver seat recline motor
E12
Entire seat
F12
Front passenger seat adjuster switch
Front passenger seat front vertical motor
Front passenger seat horizontal motor
Front passenger seat rear vertical motor
Front passenger seat recline motor
Front vertical
Fwd
G302 (under right front seat)
Hot at all times
Nca
Pwr seat circuit breaker 30a
Rear fuse block
Rear vertical
Recline
S324 (w/ lumbar)
S325
S330 (w/ lumbar)
S331 (w/ lumbar)
Solid state
Splice pack sp302
Tan

Front Seat Heater Wiring Diagram for Cadillac DeVille 2003

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List of elements for Front Seat Heater Wiring Diagram for Cadillac DeVille 2003:

A10
A11
B +
Back ind cntrl
Back mode
Back only mode indicator
Cntrlld gnd
Driver door module
Driver heated seat back
Driver heated seat cushion
Driver heated seat module
Driver heated seat switch
E11
F12
Front passenger door module
Front passenger heated seat back
Front passenger heated seat cushion
Front passenger heated seat module
Front passenger heated seat switch
G302 (under right front seat)
Ground
Heated seat back only mode switch
Heated seat heat/off temperature switch
Heater cntrl
Hi ind cntrl
High temperature indicator
Hot at all times
Htd seat sw
Htdtslf fuse 10a
Htdtsrf fuse 10a
Ign 3
Ign 3 fuse 10a
Lo ind cntrl
Low temperature indicator
Med ind cntrl
Medium temperature indicator
Mode input
Nca
Pnk
Rear fuse block (under left rear seat)
Red
S325
S331
S332 (w/ auto contouring control)
Sens ret
Splice pack g302
Tan
Temp input
Temp sig
Temperature
Temperture in

Lumbar Wiring Diagram, Base for Cadillac DeVille 2003

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List of elements for Lumbar Wiring Diagram, Base for Cadillac DeVille 2003:

(w/ v4u)
(w/o v4u)
Back
Driver seat lumbar switch
E12
F12
Front passenger seat lumbar switch
Fwd
G302 (under right front seat)
Hot at all times
Left front seat lumbar horizontal motor
Left front seat lumbar vertical motor
Left rear seat lumbar horizontal motor
Left rear seat lumbar switch
Left rear seat lumbar vertical motor
Pnk
Pwr seat circuit breaker 30a
Rear fuse block (under left rear seat)
Right front seat lumbar horizontal motor
Right front seat lumbar vertical motor
Right rear seat lumbar horizontal motor
Right rear seat lumbar switch
Right rear seat lumbar vertical motor
Rr lum/ ant fuse 20a
S324
S325
S330
S331
S704
S803
Solid state
Splice pack sp302
Tan

Lumbar Wiring Diagram, with Auto Contour for Cadillac DeVille 2003

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List of elements for Lumbar Wiring Diagram, with Auto Contour for Cadillac DeVille 2003:

Auto/on
Auto/on sig
Back
Batt +
Controlled gnd
Diagnostic
Dianostic
Driver seat adaptive lumbar module
Driver seat adpative lumbar pump motor
Driver seat lumbar switch
E11
Forward
Front passenger seat adaptive lumbar module
Front passenger seat adaptive lumbar pump motor
Front passenger seat lumbar switch
G302 (under right front seat)
Ground
Hot at all times
Ign 3
Ign 3 fuse 10a
Lumbar bck sig
Lumbar fwd sig
Mem t & t fuse 10a
Off/dn sig
Off/down
Pnk
Rear fuse block (under left rear seat)
Red
S309
S325
S328
S329
S331
S332
S362
S363
S364
S365
Splice pack sp302

Lumbar Wiring Diagram, with Massage for Cadillac DeVille 2003

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List of elements for Lumbar Wiring Diagram, with Massage for Cadillac DeVille 2003:

B +
Back
Driver seat lumbar horizontal motor
Driver seat lumbar switch
Driver seat lumbar vertical motor
Driver seat lumbar vertical position sensor
Driver seat massage module
E12
F12
Front passenger seat lumbar horizontal motor
Front passenger seat lumbar switch
Front passenger seat lumbar vertical motor
Front passenger seat lumbar vertical position sensor
Front passenger seat massage module
Fwd
G302 (under right front seat)
Ground
Hot at all times
Lumbar dn in
Lumbar up in
Lunbar dn in
Pnk
Pwr seat circuit breaker 30a
Rear fuse block (under left rear seat)
Ref
S324
S325
S330
S331
Sens gnd
Solid state
Splice pack sp302
Tan
Veritcal dn
Vert pos sens
Vertical dn
Vertical up

Rear Heated Seats Wiring Diagram for Cadillac DeVille 2003

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List of elements for Rear Heated Seats Wiring Diagram for Cadillac DeVille 2003:

A10
A11
B +
Back ind cntrl
Back mode
Back only mode indicator
Cntrlld gnd
D12
F11
G301 (under left front corner of rear seat)
Ground
Heated seat back only mode switch
Heated seat heat/off temperature switch
Heater cntrl
Hi ind cntrl
High temperature indicator
Hot at all times
Htd seat sw
Htdtslr fuse 10a
Htdtsrr fuse 10a
Ign 3
Ign 3 fuse 10a
Left front heated seat module
Left rear door module
Left rear heated seat back
Left rear heated seat cushion
Left rear heated seat switch
Lo ind cntrl
Low temperature indicator
Med ind cntrl
Medium temperature indicator
Mode input
Nca
Pnk
Rear fuse block (behind left rear seat)
Red
Right rear door module
Right rear heated seat back
Right rear heated seat cushion
Right rear heated seat module
Right rear heated seat switch
S333
S334
Sens ret
Splice pack sp301
Temp input
Temp sig
Temperature
Temperture in

POWER TOP/SUNROOF

Power Top/Sunroof Wiring Diagram for Cadillac DeVille 2003

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List of elements for Power Top/Sunroof Wiring Diagram for Cadillac DeVille 2003:

(seville) (deville)
Battery
C2 f6
Close
Closed
Deville
Express in
Express- open
G401
Ground
Hot at all times
Limit sw
Limit switch
Motor ctrl
Nca
Not used
Open
Overhead console
Pnk
Power sun roof slide switch
Power sun roof vent switch
Rap ctrl
Rap fuse 20a 30a
Rap relay
Rear fuse block (under left rear seat)
Rear integration module (behind right side of rear seat back)
Red
Seville
Slide close
Slide open
Sp401 (right rear corner of luggage compartment)
Sun roof module (above headliner, near rear of sun roof)
Sunroof motor (above headliner, near rear of sun roof)
Vent close
Vent open

POWER WINDOWS

Power Windows Wiring Diagram (1 of 2) for Cadillac DeVille 2003

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List of elements for Power Windows Wiring Diagram (1 of 2) for Cadillac DeVille 2003:

(left middle door harness)
(under left front door sill plate)
A12
Assembly (ddsa) driver door switch
B11
B12
Battery
C3 d
Computer data lines system
Dn mtr ctrl
Dn signal
Door locks system
Door locks, memory and interior lights systems
Down
Driver door module (ddm)
Driver window motor
Drv mdl fuse 10a
Export lighting pwr lk fuse 15a
Express down
Express sig
Express signal
F pnk
Front passenger window motor
Front passenger window switch
G200
G201 (under right front door sill)
G302 (under right front seat)
Ground
High comm
Hot at all times
Left middle door harness, between module and switch
Left middle door module (lmdm)
Left middle window motor
Left middle window switch
Low ref
Norm comm
Pass mdl fuse 10a
Passenger front door module (pfdm)
Pnk
Pwr wdo c.b. 30a
Rear fuse block
S317
S345
S346
S347
S348
S351
S352
S356
S500
S501 (left front door harn)
Serial data
Up mtr ctrl
Up signal
Wdo ground

Power Windows Wiring Diagram (2 of 2) for Cadillac DeVille 2003

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List of elements for Power Windows Wiring Diagram (2 of 2) for Cadillac DeVille 2003:

(except hearse)
(right middle door harness) s349
A12
B12
Battery
Computer data lines system
Dn mtr ctrl
Dn signal
Door lock system
Door locks, interior lights systems
Down
Down express
Express down
Express sig
G201 (under right front door sill trim plate)
G302 (under right front seat)
Ground
Hot at all times
Left rear door module (except hearse)
Left rear window motor (except hearse)
Left rear window switch (except hearse)
Low ref
Rear fuse block
Right middle door harness, between module and switch
Right middle door module (rmdm)
Right middle door power window motor
Right middle door switch
Right rear door module (rrdm) (except hearse)
Right rear window control
Right rear window motor (except hearse)
Rrdr mdl fuse 10a
S321
S342
S343
S344
S350
S357
S700
S701
S703 (left rear door harn)
S800
Serial data
Up mtr ctrl
Up signal
Wdo ground
Window dn
Window up

Rear Window Sun Shade Wiring Diagram for Cadillac DeVille 2003

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List of elements for Rear Window Sun Shade Wiring Diagram for Cadillac DeVille 2003:

A4 c1
Extend
G301 (under left front corner of rear seat)
Ground
Hot w/rap relay energized
Rear fuse block (under left rear seat)
Rear window inside sunshade switch
Rear window sunshade module (under center of rear package shelf)
Retract
Splice pack sp301
Sunshade fuse 10a
Sunshade motor (under center of rear package shelf)
Switch input
Tan

RADIO

Radio Wiring Diagram, with Bose System (1 of 2) for Cadillac DeVille 2003

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List of elements for Radio Wiring Diagram, with Bose System (1 of 2) for Cadillac DeVille 2003:

Ant power
Antenna
Audio fuse 15a
Audio gnd
Bare
Chime gnd
Chime out +
Chime out -
Computer data lines system
Dash integration module (right side of dash)
Data line
E10
E11
E12
E13
E14
E15
E16
F10
F11
F12
F13
F14
F15
Fm compos
G201 (under right door sill trim plate)
G301 (under left corner of rear seat)
Ground
Hot at all times
Inflatable restraint steering wheel module coil
Int lps
Interior lights system
Left side steering wheel controls
Lt audio +
Lt audio -
Nca
Radio
Rear fuse block
Red
Right side steering wheel controls
Rt audio +
Rt audio -
S206
S215 (steering pad jumper harn left side of dash)
Sp301
Steering column fuse holder
Sw1
Sw2
Sw3
Sw4
Sw5
Sw6
Sw7
Sw8
Switch fuse 2a
Tan

Radio Wiring Diagram, with Bose System (2 of 2) for Cadillac DeVille 2003

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List of elements for Radio Wiring Diagram, with Bose System (2 of 2) for Cadillac DeVille 2003:

A10
A11
A12
Antenna in
Audio amp fuse 30a
Audio amplifier (behind left rear seat back)
Audio comm out
B10
B11
B12
Bare
Battery
Battery voltage
Cd changer-remote playback device
Cd com
Cel phone +
Cel phone -
Cellular telephone
Chime in
Chime input +
Computer data lines system
Ctr i/p spkr +
Ctr i/p spkr -
Data line
Data link connector
Digital radio antenna
Digital radio receiver
Enable
Fm select
Front i/p speaker
G301 (under left corner of rear seat)
Grd
Ground
Hot at all times
L i/p spkr +
L i/p spkr -
Left audio out
Left front door speaker (tweeter)
Left front speaker (tweeter)
Left rear door speaker
Lr spkr +
Lr spkr -
Lt aud in
Lt cd
Mic input
Nca
Radio antenna module (behind rear center of headliner)
Rear fuse block
Rear glass
Rear subwoofer
Red
Right audio out
Right front door speaker (tweeter)
Right front speaker (tweeter)
Right rear door speaker
Rr dr spkr +
Rr dr spkr -
Rr sub
Rt aud in
Rt cd
Rt i/p spkr +
Rt i/p spkr -
Serial data e&c
Shield grd
Sp301
Tan
Windshield antenna

Radio Wiring Diagram, without Bose System for Cadillac DeVille 2003

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List of elements for Radio Wiring Diagram, without Bose System for Cadillac DeVille 2003:

(under left front of rear seat)
A10
A11
A12
Ant power
Antenna
Audio amp fuse 30a
Audio amplifier (behind left rear seat back)
Audio comm out
Audio fuse 15a
Audio gnd
B10
B11
B12
Bare
Battery
Battery voltage
Cd changer-remote playback device
Cd com
Cel phn +
Cel phn -
Cellular phone system
Chime gnd
Chime in
Chime out +
Chime out -
Chime rtn
Coax
Computer data lines system
Dash integration module (right c2 side of dash)
Data line
E10
E11
E12
E13
E14
E15
E16
Enable
F10
F11
F12
F13
F14
F15
F16
Fm compos
Fm select
Front i/p speaker
G304
G304 (under left front corner of rear seat)
G316 (under right door sill trim plate)
Grd
Ground
Hot at all times
Inflatable restraint steering wheel module coil
Int lps
Interior lights system
Left audio out
Left front door speaker
Left rear door speaker
Left side steering wheel controls
Lf out +
Lf out -
Lf tweet +
Lf tweet -
Lr out +
Lr out -
Lt aud +
Lt aud -
Lt audio +
Lt audio -
Lt cd
Mid out +
Mid out -
Nca
Radio
Radio antenna module (behind rear center of headliner)
Rear fuse block
Rear glass
Rear subwoofer
Red
Rf out +
Rf out -
Rf tweet +
Rf tweet -
Right audio out
Right front door speaker
Right rear door speaker
Right side steering wheel controls
Rr out +
Rr out -
Rt aud +
Rt aud -
Rt audio +
Rt audio -
Rt cd
S206
S215 (steering pad jumper harn left side of dash)
Serial data e&c
Shield grd
Steering column fuse holder
Sub out +
Sub out -
Sw1
Sw2
Sw3
Sw4
Sw5
Sw6
Sw7
Sw8
Switch fuse 2a
Tan
Windshield antenna

SHIFT INTERLOCK

Ignition Lock Solenoid Wiring Diagram for Cadillac DeVille 2003

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List of elements for Ignition Lock Solenoid Wiring Diagram for Cadillac DeVille 2003:

1995 vftc c
A12
Computer data lines
D10
Data line
F10
G100 (left front corner of engine, below thermostat housing)
G200 (under left front door sill trim plate)
Hot at all times
Ignition lock cylinder control actuator (in steering column)
Ims a inp
Ims b inp
Ims c inp
Ims p inp
Lk/cyl relay
Park relay control
Powertrain control module (left side of engine compt, inside air cleaner)
Q10
Q11
Rear fuse block (under left rear seat)
Rear integration module (behind right rear seat back)
Rev/lk fuse 10a
S10
S11
S130
S219
Splice pack sp200
Transmission internal mode switch

Park Brake Release Wiring Diagram for Cadillac DeVille 2003

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List of elements for Park Brake Release Wiring Diagram for Cadillac DeVille 2003:

A1 c2
A12
B10
B11
Braided
Class 2 serial data
Computer data lines system
G100 (left front corner of engine, below thermostat housing)
G202
Hot at all times
Hot in run
Instrument panel cluster
Nca
Park brake relay a
Park brake relay b
Park brake release solenoid (on park brake pedal)
Park brake release switch (near top of park brake pedal)
Pnk
Powertrain control module (left side of engine compt, inside air cleaner)
Prk brk fuse 20a
Rear fuse block (under left rear seat)
Rear integration module (rim) (behind right of rear seat)
Relay cntl
S130
Solenoid a
Solenoid b
Sw sig a
Sw sig b
Sw sig c
Sw sig p
Switch inp
Transmission internal mode switch

Reverse Lockout Wiring Diagram for Cadillac DeVille 2003

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List of elements for Reverse Lockout Wiring Diagram for Cadillac DeVille 2003:

1995 vftc c
A11
A12
Computer data lines system
Dash integration module (behind right side of dash, near blower motor)
Data line
G100 (left front corner of engine, below thermostat housing)
G201 (under right front door sill trim plate)
Hot at all times
Hot in on
Ims a inp
Ims b inp
Ims c inp
Ims p inp
Nca
Powertrain control module (left side of engine compt, inside air cleaner)
Rear fuse block (under left rear seat)
Rev/ lkout relay
Rev/lk fuse 10a
Reverse lockout control
Reverse lockout solenoid (under front of center console on shifter)
S130
S300
Splice pack sp201
Transmission internal mode switch

Shift Interlock Wiring Diagram, with Column Shift for Cadillac DeVille 2003

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List of elements for Shift Interlock Wiring Diagram, with Column Shift for Cadillac DeVille 2003:

1995 vftc c
A12
Computer data lines system
Data line
G100 (left front corner of engine, below thermostat housing)
G200 (under left front door sill trim plate)
Hot at all times
Hot in on
Ims a inp
Ims b inp
Ims c inp
Ims p inp
Park relay
Park relay control
Park/reverse fuse 10a
Powertrain control module (left side of engine compt, inside air cleaner)
Rear fuse block (under left rear seat)
Rear integration module (behind right rear seat back)
S130
S219
Shift interlock actuator (in steering column)
Splice pack sp200
Stoplamp/ a/t shift lock control switch (near top of brake pedal)
Transmission internal mode switch

Shift Interlock Wiring Diagram, with Console Shift for Cadillac DeVille 2003

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List of elements for Shift Interlock Wiring Diagram, with Console Shift for Cadillac DeVille 2003:

1995 vftc c
A/t shift lock control solenoid
A12
Computer data lines system
D11
Data line
G100 (left front corner of engine, below thermostat housing)
G201 (under right front door sill trim plate)
Hot at all times
Hot in on
Ign3 rr fuse 10a
Ims a inp
Ims b inp
Ims c inp
Ims p inp
Nca
Park relay
Park relay control
Park/reverse fuse 10a
Pnk/
Powertrain control module (left side of engine compt, inside air cleaner)
Rear fuse block (under left rear seat)
Rear integration module (behind right rear seat back)
S130
S300
S301
Shift lock actuator
Shift lock relay
Splice pack sp201
Stoplamp/ a/t shift lock control switch (near top of brake pedal)
Transmission internal mode switch

STARTING/CHARGING

Charging Wiring Diagram for Cadillac DeVille 2003

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List of elements for Charging Wiring Diagram for Cadillac DeVille 2003:

(heat shrink dead end)
(limo only)
(not used) a
(under right side of rear seat, near battery) g300
A11
A12
Auxiliary generator (limo only)
Auxiliary generator test connector
B12
Battery
Battery charge indicator
Computer data lines system
Dash integration module (dim) (behind right side of dash, near blower motor)
Dim fuse 10a
F term monitor
Fusible link
Generator
Ground sense
Heated oxygen sensor (ho2s) (bank 2, sensor 1) (on left exhaust manifold)
Hot at all times
Hot in run and start
Instrument panel cluster (ipc)
L terminal monitor/ctrl
Nca
Oxy sen fuse 10a
Pnk
Power distribution system (rear fuse block)
Powertrain control module (pcm) (at left side of engine compartment, inside air cleaner)
Rear fuse block (under left rear seat)
Red
S124
S126
Serial data class 2
Solid state
Starter solenoid
Underhood fuse block (at right side of engine compartment)
Voltage sense

Starting Wiring Diagram for Cadillac DeVille 2003

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List of elements for Starting Wiring Diagram for Cadillac DeVille 2003:

Acc
Battery
Computer data lines system
Crank request input
E10
G300 (under right side of rear seat, near battery)
Ground distribution system (dash integration module (dim))
Hold in coil
Hot in run & start
Ign sw fuse 15a
Ignition switch
Off
Pcm ign fuse 10a
Power distribution system
Powertrain control module (pcm) (at left side of engine compartment, inside air cleaner)
Pull in coil
Rear fuse block (under left rear seat)
Red
S218
Serial data class 2
Start
Start 1 relay
Start 1 relay ctrl
Start circuit breaker 30a
Starter motor
Starter solenoid
Starting/charging system (charging circuit)
Underhood fuse block (at right side of engine compartment)

SUPPLEMENTAL RESTRAINTS

Supplemental Restraints Wiring Diagram for Cadillac DeVille 2003

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List of elements for Supplemental Restraints Wiring Diagram for Cadillac DeVille 2003:

(under right front seat)
A10
A11
A12
A13
A14
A15
A16
A17
A18
A19
A20
A21
A22
A23
A24
A25
A26
A27
A28
A29
A30
A31
A32
A33
A34
A35
A36
A37
A38
A39
A40
A41
A42
Air bag indicator
Case ground
Computer data lines system
Data link connector (dlc) (under left side of dash, near steering column)
Driver seat belt switch
Driver seat belt switch signal
G306
Ground
High control
Hot in run & start
Ignition
Inflatable restraint front end sensor (on lower radiator support)
Inflatable restraint ip module
Inflatable restraint sensing & diagnostic module (sdm) (under rear of center console)
Inflatable restraint steering wheel module
Inflatable restraint steering wheel module coil
Instrument panel cluster (ipc)
Left front inflatable restraint side impact module
Left front seat belt pretensioner
Left inflatable restraint side impact sensor (sis) (at base of left "b" pillar, behind trim panel)
Left rear inflatable restraint side impact module (if equipped)
Low control
Low reference
Lt grg
Nca
Pnk
Rear fuse block (under left rear seat)
Remote playback device cd changer
Resistor- inflatable passenger seat wiring harness
Resistor- inflatable restraints ip wiring harness
Right front inflatable restraint side impact module
Right front seat belt pretensioner
Right inflatable restraint side impact sensor (sis) (at base of right "b" pillar, behind trim panel)
Right rear inflatable restraint side impact module (if equipped)
S218 (in steering column harn, near ignition switch)
Serial data
Serial data class 2
Shorting bar
Signal
Sir fuse 10a
Solid state
Sp304 (right rear of passenger compartment, taped to body harness, approximately 24 cm from cross car channel)
Tan
Voltage
W/ passenger air bag
W/o passenger air bag
W/o right front seat belt pre- tensioner
W/o right front side impact module
W/right front seat belt pre- tensioner
W/right front side impact module

TRANSMISSION

4.6L VIN 9

4.6L VIN 9, A/T Wiring Diagram for Cadillac DeVille 2003

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List of elements for 4.6L VIN 9, A/T Wiring Diagram for Cadillac DeVille 2003:

(left front corner of engine, below thermostat housing, on transmission) g100
(right rear of engine, below egr valve) engine coolant temperature (ect) sensor
1-2 shift sol
2-3 shift sol
5v ref a
A/t speed sens
Acc on
Automatic transaxle
Automatic transaxle (4t80-e)
Automatic transaxle fluid pressure manual valve position switch
Automatic transaxle fluid temperature sensor
Automatic transaxle input shaft speed sensor
Automatic transaxle internal mode switch
Battery
C2 a3
C2 a8
C3 e7
Class 2 data
Computer data lines system
Cruise control system
Ect sens sig
Extend trvl sw
Extended travel brake switch
Hot at all times
Hot in run or start
Ign 1 fuse 10a
Ignition
Ignition switch
Ims a input
Ims b input
Ims c input
Ims p input
Instrument cluster
Malfunction indicator lamp
Mil cntrl
Off
Pcm batt fuse 10a
Pcm ground
Pcm ign fuse 10a
Pnk
Powertrain control module (left front corner of engine compt, inside air cleaner)
Press ctrl sol
Pressure control sol
Rear fuse block (under left rear seat)
Red
S130
S131
S213
Start
Stoplamp switch (near top of brake pedal)
Tan
Tcc brake sw
Tcc pwm sol
Tcc/ cruise switch
Tft sensor high
Tft sensor low
Throttle position sensor (on left side of throttle body)
Tp sens grd
Tp sens sig
Trans fuse 10a
Trans range a
Trans range c
Underhood fuse block (right side of engine compt)
Vehicle speed sensor (on transaxle case extension)
Vss hi (signal)
Vss lo (ground)

4.6L VIN Y

4.6L VIN Y, A/T Wiring Diagram for Cadillac DeVille 2003

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List of elements for 4.6L VIN Y, A/T Wiring Diagram for Cadillac DeVille 2003:

(left front corner of engine, below thermostat housing, on transmission) g100
(right rear of engine, below egr valve) engine coolant temperature (ect) sensor
1-2 shift sol
2-3 shift sol
5v ref a
A/t speed sens
Acc on
Automatic transaxle
Automatic transaxle (4t80-e)
Automatic transaxle fluid pressure manual valve position switch
Automatic transaxle fluid temperature sensor
Automatic transaxle input shaft speed sensor
Automatic transaxle internal mode switch
Battery
C2 a3
C2 a8
C3 e7
Class 2 data
Computer data lines system
Cruise control system
Ect sens sig
Extend trvl sw
Extended travel brake switch
Hot at all times
Hot in run or start
Ign 1 fuse 10a
Ignition
Ignition switch
Ims a input
Ims b input
Ims c input
Ims p input
Instrument cluster
Malfunction indicator lamp
Mil cntrl
Off
Pcm batt fuse 10a
Pcm ground
Pcm ign fuse 10a
Pnk
Powertrain control module (left front corner of engine compt, inside air cleaner)
Press ctrl sol
Pressure control sol
Rear fuse block (under left rear seat)
Red
S130
S131
S213
Start
Stoplamp switch (near top of brake pedal)
Tan
Tcc brake sw
Tcc pwm sol
Tcc/ cruise switch
Tft sensor high
Tft sensor low
Throttle position sensor (on left side of throttle body)
Tp sens grd
Tp sens sig
Trans fuse 10a
Trans range a
Trans range c
Underhood fuse block (right side of engine compt)
Vehicle speed sensor (on transaxle case extension)
Vss hi (signal)
Vss lo (ground)

TRUNK, TAILGATE, FUEL DOOR

Trunk & Fuel Door Release Wiring Diagram for Cadillac DeVille 2003

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List of elements for Trunk & Fuel Door Release Wiring Diagram for Cadillac DeVille 2003:

A10
A12 c2
A9 c2
Aldl fuse 10a
B10
B11
B3 c1
Body fuse 15a
Class 2 serial data
Computer data lines system
E1 c2
F/tnk dr rel relay
Fuel door release actuator (left side of rear compt)
Fuel door release sw sig
Fuel door release switch
Fuel dr rel out
G200
G402
Garage door opener
H10
Headlamp switch
Hot at all times
Instrument panel cluster
Instrument panel integration module (ipm) (above radio)
K10
L10
N10
Pnk
Rear compartment lid release actuator (on rear compartment lid latch)
Rear compt lid release switch
Rear fuse block (under left rear seat)
Rear integration module (rim) (behind right rear seat back)
Rr compt lid rel out
S200
S209
S402
Serial data
Sp200 (under left front door sill trim plate)
Sp402 (left rear of luggage compt, near left tail lamp connector)
Trk/rel relay
Trunk ajar signal
Trunk open
Trunk release sw sig
Underhood fuse block (right side of engine compartment)
Valet switch

WARNING SYSTEMS

Warning Systems Wiring Diagram for Cadillac DeVille 2003

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List of elements for Warning Systems Wiring Diagram for Cadillac DeVille 2003:

A11
A12
A22
A23
Audio amplifier
B10
B11
B12
Base
Belt switch signal
Class 2 serial data
Computer data lines system
Dash integration module (dim) (behind right side of dash, near blower motor)
Door ajar
Door ajar switch
Door open
Door open switch
Driver door lock actuator (in door)
Driver door module (ddm) (inside middle of driver's door)
Driver seat belt switch
Electronic brake control module (ebcm) (under air cleaner housing)
Front passenger door lock actuator (in door)
G201
Ground
Head
Head sw input
Headlamp switch
Ignition switch
Inflatable restraint sensing & diagnostic module (sdm) (under rear of center console)
Instrument panel cluster (ipc)
Instrument panel integration module (ipm) (above radio)
Key in ignition signal
Key-in-ignition switch (closed w/key in ignition)
Left middle door lock actuator (in door)
Left middle door module (lrdm) (limousine) (inside left middle door)
Left rear door lock actuator (in door)
Left rear door module (lrdm) (inside front of left rear door)
Left seat belt switch
Left turn in
Low reference
Nca
Park
Park sw input
Passenger front door module (pfdm) (inside front of right front door)
Pnk
Powertrain control module (pcm) (inside air cleaner)
Premium
Radio
Right middle door lock actuator (in door)
Right middle door module (rrdm) (limousine) (inside right middle door)
Right rear door lock actuator (in door)
Right rear door module (rrdm) (inside front of right rear door)
Right turn in
S200
S208 (i/p harn, 92.7 cm from instrument panel integration module)
S221
S224 (in steering wheel)
Splice pack sp200 (in i/p harness, 18.5 cm from inst cluster)
Splice pack sp201 (right front corner of passenger compartment, uindr front of sill trim plate)
Tan
Turn/hazard flasher module (behind left front knee bolster)

WIPER/WASHER

Wiper/Washer Wiring Diagram for Cadillac DeVille 2003

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List of elements for Wiper/Washer Wiring Diagram for Cadillac DeVille 2003:

(in body harness approximately 15.0 cm (5.9 in) from 6 cavity in-line connector body harness to wiper harness, center rear of engine compartment near grommet) s111
(not used)
128,000 ohms
24,000 ohms
39,000 ohms
418,000 ohms
43,000 ohms
68,000 ohms
Accy fuse 15a
Dash integration module (dim) (behind right side of dash, near blower motor)
G101 (on left side of radiator support)
G104 (near windshield washer fluid reservoir filler neck)
G402 (left rear corner of luggage compartment, near left tail lamp connector)
Ground
Headlamps on w/wipers input
High
High speed input
Hot in accy & on
Ignition
Low
Low min
Max
Min
Mist
Nca
Off
Off max
Outside moisture sensor (near inside rearview mirror)
Red
S303
Sensor signal 1
Sensor signal 2
Sensor signal-1
Sensor signal-2
Splice pack sp101
Splice pack sp104
Splice pack sp402
Underhood fuse block (at right side of engine compartment)
Wash
Washer input
Washer mtr feed
Washer switch
Windshield washer fluid pump (on side of solvent reservoir)
Windshield wiper motor (on left side of firewall, behind strut tower)
Windshield wiper/washer switch
Wiper speed input
Wiper switch
Wsw fuse 30a