All Wiring Diagrams for Cadillac CTS V 2004

AIR CONDITIONING

Automatic A/C Wiring Diagram (1 of 3) for Cadillac CTS V 2004

List of elements for Automatic A/C Wiring Diagram (1 of 3) for Cadillac CTS V 2004:

3.2l
5 volt reference
After boil pump relay ctrl
Air inlet motor
Amb air temp sensor sig
Ambient light sensor signal
Battery
Blower fuse 40a
Blower mtr speed ctrl
Blower relay
Blower relay ctrl
Ccp fuse 10a
Cmp clu relay
Comp clutch fuse 10a
Computer data lines system
Coolant level switch signal
Door a
Door b
Dr air temp door ctrl b
Driver air temp door ctrl a
Driver air temp posit signal
E10
E11
E12
E13
E14
E15
E16
Evap low temp sens signal
Evaporator temperature sensor (on right side of evaporator case)
F10
F11
F12
F13
F14
F15
F16
G201 (behind right kick panel)
Ground
Hot at all times
Hot in run
Hvac control module (behind center of dash, below radio)
Ign 3 fuse 10a
Ignition 3 voltage
Inside air temp sensor sig
Inside air temperature sensor
Joint connector
Left rear fuse block (below left rear seat)
Left sunload sensor signal
Low reference
Mode door ctrl a
Mode door ctrl b
Mode door position signal
Nca
Pass air temp door ctrl a
Pass air temp door ctrl b
Pass air temp posit signal
Pnk
R51
R52
R53
R54
R55
R56
R57
R58
Recirc door ctrl a
Recirc door ctrl b
Recirculation actuator (left side of the blower motor)
Right sunload sensor signal
S117
Serial data
Solid state
Splice pack sp302
Sunload sensor (top center of i/p, on defrost grill)
Tan
Underhood fuse block (right front of engine compartment)
Volt

Automatic A/C Wiring Diagram (2 of 3) for Cadillac CTS V 2004

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List of elements for Automatic A/C Wiring Diagram (2 of 3) for Cadillac CTS V 2004:

(3.2l)
(3.6l)
(5.7l)
(in blower motor harness, 115 cm from c323) s323
(in hvac module harness, 6 cm from c321)
3.2l
A/c
A/c compressor clutch
Acc
After boil coolant pump (on right side of engine block)
After boil fuse 10a
After boil relay (3.2l)
Blower motor (on right side of hvac module)
Blower motor control processor (on lower left side of blower motor)
Blower mtr speed ctrl
Cold
Def
Driver air temperature actuator (on hvac module)
Dry air temp signal
G100 (left rear side of engine)
G100 (left rear side of engine) g132 (front of right cylinder head) g142 (rear of right cylinder head)
G201 (behind right kick panel)
Hot
Hot at all times
Ignition switch
Lock
Logic
Mix motor
Mode actuator
Mode actuator (on left side of hvac module)
Mode valve signal
Nca
Off
Pass air temp signal
Passenger air temperature actuator (on hvac module)
Pnk
R11
R12
R13
R15
Right rear fuse block (below right rear seat)
Run
S118
S202 (in the i/p harness, 48 cm from hazard switch connector)
Splice pack sp200 (in right front of passenger compt, under dash, above steering column)
Start
Tan

Automatic A/C Wiring Diagram (3 of 3) for Cadillac CTS V 2004

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List of elements for Automatic A/C Wiring Diagram (3 of 3) for Cadillac CTS V 2004:

(3.2l)
(except 3.2l) a
(left rear side of engine) g100
(near left front strut tower) g101
(on right body rail, near right headlamp) g104
(or 452)
(or 470)
26 cm from starter motor connector)
3.2l
3.2l 3.6l
3.6l
5.7l
5v reference
A/c clutch relay ctrl
A/c refrig press sensor
A/c refrigerant pressure sensor (near the left front strut tower)
Ambient air temperature sensor (under front bumper, near front grille)
Coolant bypass solenoid
Coolant level switch (in left front corner of coolant surge tank)
Ect sensor signal
Engine control module (ecm) (3.6l (vin 7): front of right valve cover)
Engine controls system
Engine coolant low level
Engine coolant temperature (ect) sensor (3.2l: rear of intake manifold) (3.6l: side of left cylinder head) (5.7l: front of left cylinder head)
Except 5.7l
Feed
Hi speed fan relay
Hi speed fan relay ctrl
High fan fuse 30a
Hot at all times
Hot in on or start
Htr vlv/cltch fuse 10a
Left cooling fan (left side of radiator)
Lo speed fan relay
Logic
Low fan fuse 30a
Low reference
Low speed fan relay ctrl
Main relay
Main relay ctrl
Message center
Pnk
Powertrain control module
R14
R15
R16
R17
R18
R19
R20
R21
R22
R39
R40
R41
R42
R47
R48
R49
R50
Radio
Right cooling fan (right side of radiator)
Rtn
S/p fan relay
S111 s148 (3.6l) (3.2l) (in engine harness, (in engine harness under throttle body, 11.5 cm towards the right)
S156 (3.6l (vin 7)) (in engine harness, approximately 24 cm from ebcm connector)
Serial data
Sig
Splice pack sp102 (except 5.7l) (right front corner of engine compt)
Tan
Underhood fuse block (right front of engine compartment)

Compressor Wiring Diagram for Cadillac CTS V 2004

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List of elements for Compressor Wiring Diagram for Cadillac CTS V 2004:

(3.2l)
(3.6l)
(5.7l)
(in engine harness, approximately 24 cm from ebcm connector) (3.6l (vin 7)) s156
(or tan)
3.2l
3.6l
470 (or 452)
5.7l
5v reference
A/c clutch relay ctrl
A/c compressor clutch
A/c refrig press sens sig
A/c refrigerant pressure sensor (near the left front strut tower)
Acc
Comp clutch fuse 10a
Comp clutch relay
Computer data lines system
Engine control module (ecm) (3.6l: front of right valve cover)
Except 3.2l
Except 5.7l
Feed
G100 (left rear side of engine) g132 (front of right cylinder head) g142 (rear of right cylinder head)
Hot at all times
Ignition switch
Lock
Low reference
Nca
Off
Pnk
Powertrain control module (pcm)
R55
R56
R57
R58
Return
Run
Sig
Splice pack sp102 (except 5.7l) (right front corner of engine compartment)
Splice pack sp200 (in right front of passenger compt, under dash, above steering column)
Start
Tan
Underhood fuse block (right front of engine compartment)

ANTI-LOCK BRAKES

Anti-lock Brakes Wiring Diagram (1 of 2) for Cadillac CTS V 2004

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List of elements for Anti-lock Brakes Wiring Diagram (1 of 2) for Cadillac CTS V 2004:

(on right frame rail, near abs module) g110
(rear of right rear shock tower) g401
3.2l
3.6l
5 volt reference
5-volt reference
5.7l
A10
A11
A12
A13
A14
Abs fuse 10a
Abs fuse 50a
Abs indicator sig
B10
B11
B12
B13
B14
Bpp sensor signal
Brake fluid pressure sensor sig
Brake pedal position sensor (near top of brake pedal)
Brake pump motor
C10
C11
C12
C13
C14
Change brake pads service stability sys stability sys off stability sys ready stability sys engaged traction engaged traction suspended service suspension sys
Class 2 serial data
Computer data lines system
Delivered torque signal
Electronic brake control module (ebcm) (at right front corner of engine compartment)
Engine control module (ecm) (front of right valve cover)
Except 5.7l
Extended travel brake sw sig
Extended travel brake switch sig
Ground
High effort ctrl
Hot at all times
Hot in run or start
Ign 1 relay
Lateral accelerometer signal
Lf wheel speed sens low ref
Lf wheel speed sens sig
Logic
Low effort ctrl
Low reference
Lr wheel speed sens low ref
Lr wheel speed sens sig
Message center
Message request
Nca
Pnk
Powertrain control module (pcm)
R21
R22
R23
R25
Radio
Requested torque signal
Rf wheel speed sens low ref
Rf wheel speed sens sig
Right rear fuse block (below right rear seat)
Rr wheel speed sens low ref
Rr wheel speed sens sig
S130
Splice pack sp102 (right front corner of engine compt)
Steering wheel position sig a
Steering wheel position sig b
Tan
Throttle actuator control (tac) module (right front of engine compartment)
Traction control data sig
Traction control data signal
Underhood fuse block (right front of engine compt)
Variable effort steering actuator (on power steering rack assembly)
W/ soft ride suspension system
Yaw rate sensor signal

Anti-lock Brakes Wiring Diagram (2 of 2) for Cadillac CTS V 2004

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List of elements for Anti-lock Brakes Wiring Diagram (2 of 2) for Cadillac CTS V 2004:

(3.2l: in engine harness, 21 cm from generator connector) (3.6l: in engine harness, 21 cm from variable effort steering actuator)
(5.7l: in engine harness, 10 cm from where the pre ho2s branches from the main harness)
(behind right kick panel) g201
(behind the left kick panel) g200
(in body harness, 22.5 cm from vcim connector) s300
(in body harness, 22.5 cm from vcim connector) s301
(in body harness, 31 cm from audio amplifier connector) s306
(on back of left front wheel) left front wheel speed sensor (wss)
(on back of right front wheel) right front wheel speed sensor (wss)
(on inside of left rear wheel) left rear wheel speed sensor (wss)
(on inside of right rear wheel) right rear wheel speed sensor (wss)
5.7l
5v reference
A/t
A12
Abs ind
Abs ind sig
B12
Bas fuse 15a
Base relay
Brake fluid pressure sensor (on rear of brake pressure modulator valve)
Class 2 serial data
Computer data lines system
Electronic prndl (except 5.7l
Except 5.7l
Exterior lights system
G402 (rear of left rear shock tower)
Ground
Hot at all times
Instrument panel cluster (ipc)
Joint connector
Lateral accelerometer sig
Left rear fuse block (below left rear seat)
Logic
Low reference
Main harness)
Rear integration module (under package shelf trim panel)
S101 (w/ active brake control)
S200
S302 (in body harness, 36 cm from audio amplifier connector)
Sport mode
Sport mode switch signal
Steering wheel position sensor (near middle of steering column)
Tan
Traction control off ind
Traction control switch
Winter mode
Winter mode switch signal
Yaw rate & lateral acceleration sensor (w/ active brake control) (under center console) console)
Yaw rate sens signal

ANTI-THEFT

Anti-theft Wiring Diagram (1 of 2) for Cadillac CTS V 2004

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List of elements for Anti-theft Wiring Diagram (1 of 2) for Cadillac CTS V 2004:

A11
A12
Accessory voltage
Alarm on signal
Armed signal
B10
B12
Battery
C (not used)
Class 2 serial data
Control pwr output
Dash integration module (under right side of dash, above right closeout/ insulator panel)
Door open
Door open switch signal
Driver door latch assembly
Driver door module (on left door, under door trim)
Ecm/tcm fuse 10a
Exterior lights system
F (not used)
G200 (behind left kick panel)
Ground
Horn relay ctrl
Horns system
Hot at all times
Hot in acc or run
Hot in run or start
Ign 1 voltage
Ignition key
Intrusion sensor
Joint connector
Left rear door latch assembly
Left rear door module (under door trim panel)
Left rear fuse block (below left rear seat)
Nca
Park lamp relay ctrl
Pnk
R31
R32
R33
R35
Reader/ exciter
Rear integration module (under package shelf trim panel)
Right rear door latch assembly
Right rear door module (on right rear door, under door trim panel)
Right rear fuse block (below right rear seat)
Rim fuse 10a
S20
S205
S21
S22
S23
S313
Sp303 (in passenger compartment, near right rear fuse block)
Tan
Theft deterrent control module (at top of steering column)
Theft fuse 7.5a
Transponder
Trunk ajar switch signal
Trunk dr rel sol relay
Trunk dr release fuse 10a
Trunk release relay ctrl
Underhood fuse block (right front of engine compt)

Anti-theft Wiring Diagram (2 of 2) for Cadillac CTS V 2004

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List of elements for Anti-theft Wiring Diagram (2 of 2) for Cadillac CTS V 2004:

(in engine harness, approximately 18 cm from tcm connector) s154
(not used)
(rear of left rear shock tower) g402
3.2l
3.6l
5.7l
A13
A14
B10
Class 2 serial data
Data link connector (under left side of dash)
Door open
Door open sw sig
E10
Electronic brake control module (ebcm) (at right front corner of engine compartment)
Engine control module (ecm) (3.6l (vin 7): front of right valve cover)
Front passenger door latch assembly
Front passenger door module (on right front door, under door trim panel)
Gnd
Ground
Hvac control module (behind center of dash, below radio)
Ign
Instrument panel cluster (ipc)
Interior lights system
Logic
Powertrain control module
Radio
Rear compartment lid release actuator (center of rear compartment lid)
Right rear fuse block (below right rear seat)
Security indicator
Sp200 (in right front of passenger compt, under dash, above steering column)
Sp300 (in passenger compartment, near left side of driver's seat)
Trunk ajar switch signal
Trunk diode

BODY CONTROL MODULES

Dash Integration Module Wiring Diagram for Cadillac CTS V 2004

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List of elements for Dash Integration Module Wiring Diagram for Cadillac CTS V 2004:

(3.6l: back of right cylinder head) (5.7l: on engine block, near generator) (3.2l: on engine block, near starter) g102
5 volt reference
A10
A11
A12
Accessory
Accessory voltage
B10
B11
B12
Backlight lamps control
Battery
Cigar relay
Cigar relay coil voltage
Class 2 serial data
Computer data lines system
Control power output
Courtesy lamp switch on signal
Crank
Dash integration module (under right side of dash, above right closeout/insulator panel)
Dim/ aldl fuse 10a
Dimming fuse 10a
Drl relay ctrl
Exterior lights system
Flash to pass switch signal
Fog lamp relay control
Front fog lamps switch signal
G200 (behind the left kick panel)
Ground
Ground distribution system
Hazard switch output
Hazard switch signal
Headlamp hi beam relay ctrl
Headlamp low beam relay ctrl
Headlamp switch on signal
Headlamp washer ground
Headlights system
Horn relay control
Horns system
Hot at all times
Ignition 1 voltage
Ignition lock cyl switch
Ignition switch
Inst panel lp dimmer sw low ref
Inst panel lp dimmer switch
Interior lights system
Key in ignition switch signal
Off/lock
Park lamp relay
Park lamp relay ctrl
Park lp sw on signal
Pnk
Power distribution system
R31
R32
R33
R34
R59
R62
Run
S201
Shift interlock system
Sp201
Tan
Twilight sentinal delay signal
Underhood fuse block (right front of engine compt)
Voltage check fuse 10a
Warning system
Washer fluid level signal
Wiper switch on signal
Wiper/washer system

Rear Integration Module Wiring Diagram for Cadillac CTS V 2004

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List of elements for Rear Integration Module Wiring Diagram for Cadillac CTS V 2004:

5007 (or 5053)
A/t shift lock ctrl solenoid control
A10
A11
A12
Anti-lock brakes system
Anti-theft system
B10
B11
B12
Battery
Class 2 serial data
Computer data lines system
Courtesy lamp control
Courtesy lamp ctrl
Courtesy lamp relay ctrl
Defogger system
Driver heated seat high/low signal
Exterior lights system
G401 (rear of right rear shock tower)
Ground
Hot at all times
Htd seat ctrl module status signal
Ignition 1 voltage
Interior lights system
Intrusion sensor alarm on signal
Intrusion sensor armed signal
Joint connector
Pass htd seat ctrl module status signal
Passenger heated seat high/low signal
Pnk
Power distribution system
Power tops system
Rap relay coil control
Rear compt lid ajar switch sig
Rear defog relay ctrl
Rear integration module (under package shelf trim panel)
Reverse relay ctrl
Reverse signal (or winter mode signal)
Right rear fuse block (below right rear seat)
Rim fuse 10a
Rim/ign sw fuse 10a
S21
S22
Seats system
Shift interlock system
Sport mode switch signal
Tan
Theft deterrent system
Traction control switch signal
Transmissions system
Trunk release relay ctrl
Trunk, tailgate, fuel doors system
Vehicle speed signal

COMPUTER DATA LINES

Computer Data Lines Wiring Diagram for Cadillac CTS V 2004

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List of elements for Computer Data Lines Wiring Diagram for Cadillac CTS V 2004:

(behind the left kick panel) g200
(in engine harness, 26 cm from starter motor connector)
3.2l
3.2l 3.6l
3.2l a/t
3.6l
3.6l a/t
5.7l
A/t
A11
A12
A13
A14
Audio amplifier (left side of trunk)
B11
B12
Base
Class 2 serial data
Dash integration module (dim) (under right side of dash above right closeout/ insulator panel)
Data link connector (under left side of dash)
Digital radio receiver (left side of rear package shelf)
Dim/aldl fuse 10a
Driver door module (on left door, under door trim)
Driver door switch assembly (ddsa)
Driver's memory seat module (under driver's seat)
E10
Electronic brake control module (ebcm) (at right front corner of engine compt)
Engine control module (ecm) (3.6l: front of right valve cover)
Except
F14
Front passenger door module (on right front door, under door trim panel)
H speed gmlan data bus +
H speed gmlan data bus -
Hot at all times
Hvac control module (behind center of dash, below radio)
If equipped
Inflatable restraint sensing & diagnostic module (under center console)
Instrument panel cluster (ipc)
Key word 2000 serial data
Left headlamp
Left rear door module (under door trim panel)
Luxury
Powertrain control module
Radio
Radio antenna module (above headliner, near rear window)
Rear integration module (rim) (under package shelf trim panel)
Right headlamp
Right rear door module (on right rear door, under door trim panel)
S114
S119
S154 (in engine harness, approxi- mately 18 cm from tcm connector)
S200
S201
Sp200 (in right front of passenger compt, under dash, above steering column)
Sp300 (in passenger comp, near left side of driver's seat)
Sp303 (in passenger compt, near right rear fuse block)
Theft deterrent control module (at top of steering column)
Transmission control module (tcm) (at right front of engine compt)
Tv antenna module
U2k/u2l
U2y/u2x
Underhood fuse block (right front of engine compt)
Vehicle communication interface module (vcim) (in rear compt, behind right strut tower)
W/ automatic headlamps control leveling system

COOLING FAN

Cooling Fan Wiring Diagram for Cadillac CTS V 2004

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List of elements for Cooling Fan Wiring Diagram for Cadillac CTS V 2004:

(in engine harness under throttle body, 11.5 cm towards the right) (3.6l) s148
(left rear side of engine) g100
(near left front strut tower) g101
(on right body rail, near right headlamp) g104
(or 470)
3.2l
3.2l 3.6l
5.7l
After boil coolant pump (on right side of engine block)
After boil fuse 10a
After boil relay (3.2l)
Computer data lines system
Coolant bypass valve solenoid
Coolant level sw
Coolant level switch (in left front corner of coolant surge tank)
E10
E11
Ect sensor signal
Engine control module (ecm) (3.6l front of right valve cover)
Engine coolant low level
Engine coolant temperature (ect) sensor (3.2l rear of intake manifold) (3.6l side of left cylinder head) (5.7l front of left cylinder head)
Except 5.7l
Hi fan fuse 30a
Hi speed fan relay
High speed fan relay ctrl
Hot at all times
Hot in on or start
Htr vlv/cltch fuse 10a
Hvac control module (behind center of dash, below radio)
Left cooling fan (left side of radiator)
Lo speed fan relay
Logic
Low fan fuse 30a
Low reference
Low speed fan relay ctrl
Main relay
Main relay ctrl
Message center
Pnk
Powertrain control module (pcm)
R11
R12
R13
R14
R15
R16
R17
R18
R19
R20
R21
R22
R39
R40
R41
R42
R47
R48
R49
R50
Radio
Relay control
Right cooling fan (right side of radiator)
Right rear fuse block (below right rear seat)
S/p fan relay
S111 (3.2l) (in engine harness, 26 cm from starter motor connector)
Serial data
Tan
Underhood fuse block (right front of engine compartment)

CRUISE CONTROL

3.2L VIN N

3.2L VIN N, Cruise Control Wiring Diagram for Cadillac CTS V 2004

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List of elements for 3.2L VIN N, Cruise Control Wiring Diagram for Cadillac CTS V 2004:

left rear side of engine) g100
(right front corner of engine compt) sp102
3.2l
3.6l
3.6l
5 volt reference
Bpp sensor signal
Brake pedal position sensor (near top of brake pedal)
C12
C13
Class 2 serial data
Clutch pedal position (cpp) sensor (m/t)
Computer data lines system
Cpp switch signal
Cruise control switch
Cruise control switch signal
Cruise indicator
Electronic brake control module (ebcm) (at right front corner of engine compartment)
Engine control module (ecm) (front of right valve cover)
Extended travel brake sw sig
G104 (on right body rail, near right headlamp)
Hot at all times
Hot in run or start
Htr vlv/ cltch fuse 10a
Ign 1 relay
Ignition
Instrument panel cluster (ipc)
Logic
Low reference
Main relay
Off
Pnk
R/a
R43
R44
R45
R46
R48
R49
S132
S207
Sp102 (right front corner of engine compt)
Sp200 (in right front of passenger compartment, under dash, above steering column)
Strg ctls fuse 10a
Tac motor control-1
Tac motor control-2
Tan
Tcm/ ipc fuse 15a
Throttle actuator control (tac) motor
Throttle body assembly
Throttle position (tp) sensor
Tos fuse 10a
Tp sensor 1 signal
Tp sensor 2 signal
Turn signal/ multi-function switch
Underhood fuse block (right front of engine compt)
Vehicle speed sensor (vss) (m/t) (on right rear of transmission)
Vehicle speed sensor signal

3.6L VIN 7

3.6L VIN 7, Cruise Control Wiring Diagram for Cadillac CTS V 2004

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List of elements for 3.6L VIN 7, Cruise Control Wiring Diagram for Cadillac CTS V 2004:

left rear side of engine) g100
(right front corner of engine compt) sp102
3.2l
3.6l
3.6l
5 volt reference
Bpp sensor signal
Brake pedal position sensor (near top of brake pedal)
C12
C13
Class 2 serial data
Clutch pedal position (cpp) sensor (m/t)
Computer data lines system
Cpp switch signal
Cruise control switch
Cruise control switch signal
Cruise indicator
Electronic brake control module (ebcm) (at right front corner of engine compartment)
Engine control module (ecm) (front of right valve cover)
Extended travel brake sw sig
G104 (on right body rail, near right headlamp)
Hot at all times
Hot in run or start
Htr vlv/ cltch fuse 10a
Ign 1 relay
Ignition
Instrument panel cluster (ipc)
Logic
Low reference
Main relay
Off
Pnk
R/a
R43
R44
R45
R46
R48
R49
S132
S207
Sp102 (right front corner of engine compt)
Sp200 (in right front of passenger compartment, under dash, above steering column)
Strg ctls fuse 10a
Tac motor control-1
Tac motor control-2
Tan
Tcm/ ipc fuse 15a
Throttle actuator control (tac) motor
Throttle body assembly
Throttle position (tp) sensor
Tos fuse 10a
Tp sensor 1 signal
Tp sensor 2 signal
Turn signal/ multi-function switch
Underhood fuse block (right front of engine compt)
Vehicle speed sensor (vss) (m/t) (on right rear of transmission)
Vehicle speed sensor signal

5.7L VIN P

5.7L VIN P, Cruise Control Wiring Diagram for Cadillac CTS V 2004

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List of elements for 5.7L VIN P, Cruise Control Wiring Diagram for Cadillac CTS V 2004:

(rear of right cylinder head) g142
5 volt reference
5v ref
Anti-lock brakes system
Bpp sensor signal
Brake pedal position sensor (near top of brake pedal)
C12
C13
C208
Class 2 serial data
Clutch pedal position (cpp) sensor
Coast
Computer data lines system
Cpp switch signal
Cruise control switch fuse 2a
Cruise indicator
Cruise switch
Electronic brake control module (ebcm) (at right front corner of engine compartment)
Extended travel brake sw sig
G104 (on right body rail, near right headlamp)
Ground
Hot at all times
Hot in run or start
Htr vlv/ cltch fuse 10a
Ign 1 relay
Ignition
Ignition 1 voltage
Inflatable restraint steering wheel module coil (below inflatable restraint steering wheel module)
Instrument panel cluster (ipc)
Logic
Low erf
Low ref
Low reference
On sw sig
Pnk
Powertrain control module (pcm)
R43
R44
R45
R46
Resume/ accel
Resume/acc sw sig
Right steering wheel controls
S207
Set
Set/coast sw sig
Sp200 (in right front of passenger compartment, under dash, above steering column)
Steering column fuse block (taped to steering column harness)
Steering wheel control switch fuse 2a
Strg ctls fuse 10a
Tac motor ctrl-1
Tac motor ctrl-2
Tcm/ ipc fuse 15a
Throttle actuator control (tac) module (right front of engine compt)
Throttle actuator control (tac) motor (right front of engine compt)
Throttle position (tp) sensor (right side of throttle body)
Tp sens 1 sig
Tp sens 2 sig
Tp sensor 1
Tp sensor 2
Underhood fuse block (right front of engine compt)
Vehicle speed sensor (vss) (on left rear of transmission)
Vss high signal
Vss low signal

DEFOGGERS

Defoggers Wiring Diagram for Cadillac CTS V 2004

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List of elements for Defoggers Wiring Diagram for Cadillac CTS V 2004:

(on right "c" pillar) g303
A12
Class 2 serial data
Computer data lines system
Driver door module (on left door, under door trim)
Driver outside rearview mirror
E10
Feed
Front passenger door module (on right front door, under door trim panel)
Heated mirror element
Hot at all times
Hot in run
Hvac control module (behind center of dash, below radio)
Logic
Low reference
Nca
Passenger outside rearview mirror
R10
Rear defog fuse 40a
Rear defog relay
Rear defogger indicator
Rear defogger switch
Rear integration module (under package shelf trim panel)
Rear window defogger (on rear window glass)
Relay control
Right rear fuse block (below right rear seat)
Rtn

ELECTRONIC POWER STEERING

Electronic Power Steering Wiring Diagram for Cadillac CTS V 2004

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List of elements for Electronic Power Steering Wiring Diagram for Cadillac CTS V 2004:

(on right frame rail, near abs module) g110
A13
A14
Abs fuse 10a
Class 2 serial data
Computer data lines system
Electronic brake control module (ebcm) (at right front corner of engine compartment)
Ground
High effort control
Hot in run or start
Ignition
Low effort control
Pnk
Right rear fuse block (below right rear seat)
Variable effort steering actuator (on power steering rack assembly)

ENGINE PERFORMANCE

3.2L VIN N

3.2L VIN N, Engine Performance Wiring Diagram (1 of 3) for Cadillac CTS V 2004

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List of elements for 3.2L VIN N, Engine Performance Wiring Diagram (1 of 3) for Cadillac CTS V 2004:

(in engine harness, 120 cm from ho2s 21)
(in fuel injector harness, near c112)
(left rear of intake plenum) intake manifold runner control solenoid
(near ignition coils)
+5v ref
Case ground
Ckp hi
Ckp low
Cmp sig
Coil 1 ctrl
Coil 2 ctrl
Coil 3 ctrl
Coil 4 ctrl
Coil 5 ctrl
Coil 6 ctrl
Crankshaft position sensor
Dk red/
Ect sens
Elec- tronic ignition module (bank 2)
Electronic ignition module (bank 1)
Engine control module (front of right valve cover)
Evap purge
Fuel inj 1
Fuel inj 2
Fuel inj 4
Fuel inj 5
Fuel inj 6
Fuel injectors
G100 (near starter motor)
G107
Heated oxygen sensor bank 1 sensor 1 (on right exhaust pipe)
Heated oxygen sensor bank 1 sensor 2 (on right catalytic converter)
Heated oxygen sensor bank 2 sensor 1 (on left exhaust pipe)
Heated oxygen sensor bank 2 sensor 2 (on left catalytic converter)
Ho2s 1,1 htr
Ho2s 1,1 low
Ho2s 1,1 sig
Ho2s 1,2 hi
Ho2s 1,2 htr
Ho2s 1,2 lo
Ho2s 2,1 htr
Ho2s 2,1 low
Ho2s 2,1 sig
Ho2s 2,2 hi
Ho2s 2,2 lo
Iat sig
Inj 3 ctrl
Intk out 1
Intk out 2
Knock sensor (bank 1) (right side of engine)
Knock sensor (bank 2) (left side of engine)
Ks1 sig
Ks2 sig
Lo ref
Low ref
Maf sig
Mass airflow sensor (right side of air cleaner)
Nca
Oil pres sig
Pnk
S108
S111
Shld ground
Tac mtr ctrl
Tan
Tan/red
To spark plugs
Tps sens 1
Tps sens 2

3.2L VIN N, Engine Performance Wiring Diagram (2 of 3) for Cadillac CTS V 2004

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List of elements for 3.2L VIN N, Engine Performance Wiring Diagram (2 of 3) for Cadillac CTS V 2004:

(in front of underhood fuse box)
Camshaft position sensor (left front of engine)
Canister vent fuse 10a
Ecm fuse 15a
Ecm/tcm fuse 10a
Engine coolant temperature sensor (top rear of intake manifold)
Engine oil pressure sensor (aboe oil filter)
Evap canister purge solenoid (right side of engine)
Even inj/ coil fuse 15a
Fuel pump relay
Fuse a 15a
G100 (near starter motor)
G104 (near right head- lamp)
G401 (rear of right shock tower)
Hot at all times
Hot in run or start
Ign 1 relay
Ign mod/ maf fuse 15a
Intake manifold tuning valve solenoid (rear side of intake duct)
Main relay
Odd inj/ coil fuse 15a
Pnk
Post fuse 15a
Pre 02/ cam fuse 15a
R36
R37
R38
R40
R43
R44
R45
R46
R47
R48
R49
R50
Right rear fuse block (below right rear seat)
S132
Sp102
Tan
Tcm/ ipc fuse 15a
Theft fuse 7.5a
Throttle position sensor (top right front of engine)
Tos fuse 10a
Under- hood fuse block (left front of eng compt)
Vehicle speed sensor (m/t) (near rear of transmission assembly)

3.2L VIN N, Engine Performance Wiring Diagram (3 of 3) for Cadillac CTS V 2004

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List of elements for 3.2L VIN N, Engine Performance Wiring Diagram (3 of 3) for Cadillac CTS V 2004:

(engine harn, 160 cm from ecm ground)
(in rear compt lid harn, 237 cm from c401)
+5v ref
1786 (or 1035)
2000 ser dat
A/c pres
A/c rly ctrl
A/c system
A/t
Acc
Acc volt
Accelerator pedal
Anti-lock brakes system
App 2 sig
App sens1
Automatic transmission manual shift shaft switch assembly
Bas rly ctrl
Battery
Charging system
Class 2 data
Computer data lines system
Cooling fans system
Cpp sw sig
Crank
Cruise control system
Data bus
Data link connector (under left side of dash)
Del tor sig
Eng spd sig
Engine control module (front of right valve cover)
Engine speed
Evap canister vent solenoid (above rear differential)
Evap ctrl
Ext brk sig
F lev sig
Fuel lev sns
Fuel level sensor
Fuel pump/ sender assembly
Fuel tank pressure sensor (in fuel tank)
G100 (near starter motor)
G401 (rear of right shock tower)
Gen on sig
Gen signal
Gmlan data
Hot at all times
Ign 1
Ign 1 volt
Ign voltage
Ignition switch
Instrument panel cluster
Lan bus +
Lan bus -
Logic
Low red
Low ref
M/t
Main rly ctrl
Malfunction indicator lamp
Mil ctrl
Off/ lock
P/n sig
Pnk
Position sensor (above accelerator pedal)
Req torq
Res/accel
Rly coil ctrl
Rly ctrl
Run
S114
S400
Secondary fuel sender assembly
Ser data
Sound system
Sp102 (in front of underhood fuse box)
Start
Starting system
Tan
Tnk pres sig
Trac ctrl
Transmission control module (right front side of engine compt)
Vss
Vss signal

3.6L VIN 7

3.6L VIN 7, Engine Performance Wiring Diagram (1 of 4) for Cadillac CTS V 2004

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List of elements for 3.6L VIN 7, Engine Performance Wiring Diagram (1 of 4) for Cadillac CTS V 2004:

(engine harn, 20 cm from c1 conn of pcm)
(inj harn, 10 cm from c121)
(left rear of intake plenum) intake manifold runner control solenoid
+5v
+5v ref
Baro sig
Charging system
Ckp hi
Ckp sens lo
Cmp sig
Cmp sol ctrl
Crankshaft position sensor
Drain
Ect sig
Engine control module (front of right valve cover)
Engine oil level/temperature sensor (in oil pan)
Engine oil pressure sensor (in oil filter housing)
Evap sol ctrl
Fuel injectors
G133 (right front of engine)
Gen fdc sig
Gen to sig
Heated oxygen sensor bank 1 sensor 1 (on right exhaust pipe)
Heated oxygen sensor bank 1 sensor 2 (on right catalytic converter)
Heated oxygen sensor bank 2 sensor 1 (on left exhaust pipe)
Heated oxygen sensor bank 2 sensor 2 (on left catalytic converter)
Ho2s hi sig
Ho2s lo ctrl
Ho2s lo sig
Ho2s pmp ct
Ic 1 sig
Ic 2 ctrl
Ic 3 ctrl
Ic 4 sig
Ic 5 ctrl
Ic 6 ctrl
Imrc sol ctrl
Inj 1 ctrl
Inj 2 ctrl
Inj 3 ctrl
Inj 4 ctrl
Inj 5 ctrl
Inj 6 ctrl
Knock sensor (bank 1) (right side of engine)
Knock sensor (bank 2) (left side of engine)
Ks 1 sig
Ks 2 sig
Low ref
Nca
Oil lev sig
Oil pres sig
Oil tmp sig
Pnk
S140
Tac mtr ctrl
Tan
Tan a
Tp sig
Tp2 sig

3.6L VIN 7, Engine Performance Wiring Diagram (2 of 4) for Cadillac CTS V 2004

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List of elements for 3.6L VIN 7, Engine Performance Wiring Diagram (2 of 4) for Cadillac CTS V 2004:

(engine harn 24.5 cm from ect sensor)
(engine harn, 15 cm from coil 1)
(engine harn, 15 cm from coil 5)
(left rear of eng)
Canister vent fuse 10a
Ecm fuse 15a
Ecm/tcm fuse 10a
Even inj/ coil fuse 15a
Fuel pump relay
Fuse a 15a
G104 (near right head- lamp)
G130 (rear of right cyl head)
G131
G401 (rear of right shock tower)
Hot at all times
Hot in run or start
Ign 1 relay
Ign mod/ maf fuse 15a
Ignition coil 1 (top right of engine)
Ignition coil 2 (top left of engine)
Ignition coil 3 (top right of engine)
Ignition coil 4 (top left of engine)
Ignition coil 5 (top right of engine)
Ignition coil 6 (top left of engine)
Main relay
Nca
Odd inj/ coil fuse 15a
Pnk
Post fuse 15a
Pre 02/ cam fuse 15a
R36
R37
R38
R40
R43
R44
R45
R46
R47
R48
R49
R50
Right rear fuse block (below right rear seat)
S142
S144
S145
S146
S149
S150
Spark plug
Tan
Tcm/ ipc fuse 15a
Theft fuse 7.5a
Under- hood fuse block (left front of eng compt)

3.6L VIN 7, Engine Performance Wiring Diagram (3 of 4) for Cadillac CTS V 2004

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List of elements for 3.6L VIN 7, Engine Performance Wiring Diagram (3 of 4) for Cadillac CTS V 2004:

(front of left cyl head) camshaft position actuator solenoid (exhaust bank 2)
(front of left cyl head) camshaft position actuator solenoid (intake bank 2)
(front of left cyl head) camshaft position sensor (exhaust bank 1)
(front of left cyl head) camshaft position sensor (intake bank 2)
(front of right cyl head) camshaft position actuator solenoid (exhaust bank 1)
(front of right cyl head) camshaft position actuator solenoid (intake bank 1)
(front of right cyl head) camshaft position sensor (exhaust bank 1)
(front of right cyl head) camshaft position sensor (intake bank 1)
+5v
A/c refrigerant pressure sensor (near left front strut tower)
Barometric pressure sensor (top rear of engine)
Engine coolant temperature sensor (top rear of intake manifold)
Evap canister purge solenoid (right side of engine)
Low ref
Mass airflow sensor (right side of air cleaner)
Pnk
S148
Signal
Tan
Throttle position sensor (top right front of engine)

3.6L VIN 7, Engine Performance Wiring Diagram (4 of 4) for Cadillac CTS V 2004

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List of elements for 3.6L VIN 7, Engine Performance Wiring Diagram (4 of 4) for Cadillac CTS V 2004:

(front of right cyl head)
(fuel tank harn, 40 cm from c420)
+5v ref
+5v ref a
+5v ref c
A/c ref pres
A/c system
Acc
Acc volt
Accelerator pedal
Anti-lock brake system
App sens 2 sig
App sens sig
Automatic transmission manual shift shaft switch assembly
Battery +
Brk sw sig
Cc sw sig
Class 2 data
Clu rly ctrl
Computer data lines system
Cooling fans system
Crank volt
Cruise control system
Delv torque sig
Eng spd sig
Engine control module (front of right valve cover)
Engine speed
Evap canister vent solenoid (above rear differential)
Evap sol ctrl
Fan rly ctrl
Fuel lev sens
Fuel lev sig
Fuel level sensor
Fuel pump/ sender assembly
Fuel tank pressure sensor (in fuel tank)
G132
G401 (rear of right shock tower)
Gmlan bus
Ho2s hi sig
Ho2s lo ctrl
Ho2s lo sig
Hot at all times
Iat sig
Ign 1 volt
Ignition switch
Instrument panel cluster
Lan bus +
Lan bus -
Logic
Low ref
Maf sig
Main rly ctrl
Malfunction indicator lamp
Mil ctrl
Off/ lock
P/n sig
Pnk
Position sensor (above accelerator pedal)
Req torq sig
Rly coil ctrl
Rly coil supp
Rly ctrl
Run
S156
S400
Secondary fuel sender assembly
Ser data bus
Sound system
Sp102 (in front of underhood fuse box)
Start
Starting system
Tan
Tank pres sig
Tc data sig
Transmission control module (right front side of engine compt)
Vss

5.7L VIN P

5.7L VIN P, Engine Performance Wiring Diagram (1 of 4) for Cadillac CTS V 2004

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List of elements for 5.7L VIN P, Engine Performance Wiring Diagram (1 of 4) for Cadillac CTS V 2004:

(center of eng, below intake manifold)
(engine harn, 15.5 cm from c101)
(engine harn, 20 cm from underhood fuse block breakout)
(rear of left cyl head)
+5v ref a
+5v ref b
5v ref
Acc voltage
Anti-lock brake system
Ckp sen b+
Ckp sen sig
Cmp sen sig
Computer data lines system
Cooling fans system
Cpp sw sig
Ect sen sig
Eng cool fan rly 1 ctrl
Engine coolant temperature sensor (left side of of eng, below generator)
Extended travel brake sw
Fuel inj n04 ctrl
Fuel inj n06
Fuel inj n07 ctrl
Fuel inj no1
Fuel inj no2 ctrl
Fuel inj no3 ctrl
Fuel inj no5 ctrl
Fuel inj no8 ctrl
Fuel injectors
G140
G141 (rear of left cylinder head)
G142 (rear of right cylinder head)
Ground
Heated oxygen sensor, bank 1 sensor 1 (forward of catalytic converter)
Heated oxygen sensor, bank 1 sensor 2 (rear of catalytic converter)
Heated oxygen sensor, bank 2 sensor 1 (forward of catalytic converter)
Heated oxygen sensor, bank 2 sensor 2 (rear of catalytic converter)
Ho2s sig hi bank 1 sen1
Ho2s sig hi bank1 sen1
Ho2s sig hi bank2 sen1
Ho2s sig hi bank2 sen2
Ho2s sig lo bank1 sen1
Ho2s sig lo bank1 sen2
Ho2s sig lo bank2 sen1
Ho2s sig lo bank2 sen2
Knock sen sig 1
Knock sen sig 2
Knock sensor
Low oil level sw sig
Low ref
Nca
Pcm gnd
Pnk
Powertrain control module (behind right front fender)
Request torque sig
Rly coil ctrl
S160
S161
S162
S169
S170
Serial data
Skip shift sol ctrl
Starting system
Tan
Tan a
Uart serial data

5.7L VIN P, Engine Performance Wiring Diagram (2 of 4) for Cadillac CTS V 2004

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List of elements for 5.7L VIN P, Engine Performance Wiring Diagram (2 of 4) for Cadillac CTS V 2004:

(rear compt lid harn, 237 cm from c401)
(rear of right shock tower) g401
Canister vent fuse 10a
Ecm/tcm fuse 10a
Evaporative emission canister purge solenoid valve (top left side of eng, on intake manifold)
Even inj/ coil fuse 15a
Fuel level sensor
Fuel pump motor fuse 20a r37
Fuel pump relay
Fuel pump/ sender assembly
G104 (near right head- lamp)
G401 (rear of right shock tower)
Hot at all times
Hot in run or start
Ign 1 relay
Ign mod/ maf fuse 15a
Main relay
Manifold absolute pressure sensor (on top rear of intake manifold)
Odd inj/ coil fuse 15a
Pnk
Post fuse 15a
Pre 02/ cam fuse 15a
R36
R38
R40
R43
R44
R45
R46
R47
R48
R49
R50
Right rear fuse block (below right rear seat)
S400
Secondary fuel sender assembly
Sp102 (right front corner of engine compt)
Tan
Tcm/ ipc fuse 15a
Theft fuse 7.5a
Tos fuse 10a
Transmission fluid temperature sensor (in transmission)
Under- hood fuse block (left front of eng compt)

5.7L VIN P, Engine Performance Wiring Diagram (3 of 4) for Cadillac CTS V 2004

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List of elements for 5.7L VIN P, Engine Performance Wiring Diagram (3 of 4) for Cadillac CTS V 2004:

(attached to pcm below battery) throttle actuator control module
(ign coil module, on left valve cover)
(lower right side of eng) crankshaft position sensor
(on left side of throttle body) throttle actuator control motor
(on left side of transmission) reverse lockout solenoid
(on right side of throttle body) throttle position sensor
(on top of accelerator pedal, part of mounting bracket) accelerator pedal position sensor
(rear of right cylinder head)
(top center rear of eng) camshaft position sensor
(under vehicle, on left side of transmission) skip shift solenoid
+5v ref
5v ref
A/c refrigerant pressure sensor (near left front strut tower)
Anti-lock brake system
App no1 sig
App no2 sig
App no3 sig
Bas rly supp
Cruise control system
Engine oil level/temper- ature sensor (in oil pan)
Engine oil pressure sensor (on top center rear of eng)
G141 (rear of left cylinder head)
G142
G142 (rear of right cylinder head)
Gnd
Ign
Ign 1
Ignition coil/module 1 (top of cylinder)
Ignition coil/module 3 (top of cylinder)
Ignition coil/module 5 (top of cylinder)
Ignition coil/module 7 (top of cylinder)
Low ref
On/off sig
Plug spark
Pnk
Red
Red c ign ctrl
Ref lo
Res/acc sig
S163
S165
S167
Set/coast sig
Spark plug
Tac ctrl no1
Tac ctrl no2
Tan
Tan a
Tps no1 sig
Tps no2 sig
Uart ser data

5.7L VIN P, Engine Performance Wiring Diagram (4 of 4) for Cadillac CTS V 2004

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List of elements for 5.7L VIN P, Engine Performance Wiring Diagram (4 of 4) for Cadillac CTS V 2004:

(ign coil module, on left valve cover)
(inside right rear wheelhouse panel) evaporative emission canister vent solenoid valve
(on air intake assembly) mass air flow sensor
(on right of differential) vehicle speed sensor
+12v ref
A gnd
A tan
A/c clutch rly ctrl
A/c refrig press sen sig
A/c system
Acc
Alt term l
Anti-lock brake system
B ref lo
Charging system
Cooling fans system
Crank voltage
D ign
D pnk
Eng oil press sen sig
Eng speed (tach) out sig
Engine speed
Evap can purge sol ctrl
Evap can vent valve ctrl
Fuel level sen sig
Fuel levl sen sig (second)
Fuel pump rly ctrl
Fuel tank press sen sig
Fuel tank pressure sensor (in right fuel tank)
G140 (rear of left cyl head)
G142 (rear of right cylinder head)
Gen field duty sig
Ground
Hi spd fan rly ctrl
Ho2s htr low ctrl
Hot at all times
Iat sen sig
Ign ctrl 1
Ign ctrl 2
Ign ctrl 3
Ign ctrl 4
Ign ctrl 5
Ign ctrl 6
Ign ctrl 7
Ign ctrl 8
Ignition coil/ module 2 (top of cylinder)
Ignition coil/ module 4 (top of cylinder)
Ignition coil/ module 6 (top of cylinder)
Ignition coil/ module 8 (top of cylinder)
Ignition switch
Instrument panel cluster
Logic
Low ref
Maf sen sig
Main rly ctrl
Malfunction indicator lamp
Map sen sig
Mil ctrl
Off/ lock
Oil temp
Plug spark
Pnk
Powertrain control module (behind right front fender)
Red
Reverse inhibit sol ctrl
Run
S164
S166
S168
Sound system
Spark plug
Ss ind
Ss lamp ctrl
Start
Starting system
Tan
Tft sen sig
Torque delivered
Vehicle speed out
Vss
Vss ref lo
Vss sig hi

EXTERIOR LIGHTS

Back-up Lamps Wiring Diagram for Cadillac CTS V 2004

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List of elements for Back-up Lamps Wiring Diagram for Cadillac CTS V 2004:

(left rear side of engine) (3.2l) g100
(left rear side of engine) g100
(rear of left cylinder head) (5.7l) g142
(rear of left rear shock tower) g402
3.2l
3.6l
A12
Automatic transmission
Backup lamp switch (m/t)
Backup sw sig
Bus +
Bus -
Computer data lines system
G132 (front of right cylinder head)
Hot at all times
Inside rearview mirror (isrvm)
Left backup lamp
Left rear fuse block (below left rear seat)
License lamp assembly
R36
R37
R38
R40
Rear integration module (under package shelf trim panel)
Relay control
Rev lamp relay
Reverse lamp fuse 10a
Right backup lamp
S155
S401
Serial data
Sig a
Sig b
Sig c
Transmission control module (tcm) (a/t) (at right front of engine compt)
Transmission internal mode switch (ims)

Exterior Lamps Wiring Diagram (1 of 2) for Cadillac CTS V 2004

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List of elements for Exterior Lamps Wiring Diagram (1 of 2) for Cadillac CTS V 2004:

(40 cm from c421) s402
(behind the left kick panel) g200
(not used)
5v ref
A11
A12
Auto
Bas rly
Battery
Bpp sig
Brake pedal position (bpp) sensor (near top of brake pedal)
C12
C13
Center high mounted stop lamp (chmsl)
Class 2 serial data
Computer data lines system
Dash integration module (under right side of dash, above right closeout/ insulator panel)
Dimming fuse 10a
Drl low control
Drl low ctrl
Electronic brake control module (ebcm) (at right front corner of engine compartment)
Flasher fuse 15a
G104 (on right body rail, near right headlamp)
G200 (behind the left kick panel)
G402 (rear of left rear shock tower)
Ground
Hazard request sig
Hazard sw sig
Hazard sw signal
Hazard switch
Head
Headlamps on sig
Hot at all times
Hot in run or start
Ign 1 relay
Interior lights system
Left front turn signal lamp
Left front turn signal/ fog lamp assembly
Left license lamp
Left turn signal voltage
Left turn sw sig
License lamp assembly
Low ref
Off
Park
Park lamp relay
Park lamp rly ctrl
Park lamp sw on sig
Pnk
R31
R32
R33
R34
R43
R44
R45
R46
Right front turn signal lamp
Right front turn signal/ fog lamp assembly
Right license lamp
Right turn signal voltage
Right turn sw sig
S200
S207
S208
S401
Sp102 (right front corner of engine compartment)
Sp200 (in right front of passenger compt, under dash, above steering column)
Strg ctls fuse 10a
To underhood fuse block (lt park fuse, 10a) (diagram 2 of 2)
Turn signal/ multi-function switch
Turn signal/hazard flasher module
Underhood fuse block (right front of engine compt)

Exterior Lamps Wiring Diagram (2 of 2) for Cadillac CTS V 2004

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List of elements for Exterior Lamps Wiring Diagram (2 of 2) for Cadillac CTS V 2004:

(behind the left kick panel)
(below left rear seat) left rear fuse block
(in body harness, 30 cm from c410) s415
(in body harness, 34 cm from c411) s416
(on right body rail, near right headlamp) g104
(rear of right rear shock tower) g401
(right front of engine compt) underhood fuse block
Bas fuse 15a
Bas relay
Class 2 (dim)
Class 2 serial data
Computer data lines system
E trailering (not used)
From underhood fuse block (dimming fuse, 10a) (diagram 1 of 2)
G200
G402 (rear of left rear shock tower)
Ground
Hot at all times
Instrument panel cluster (ipc)
Joint connector
Left front marker lamp
Left front park lamp
Left headlamp (w/o automatic headlamps control leveling system)
Left rear marker lamp
Left rear turn signal lamp
Left tail lamp
Left tail lamp assembly
Left tail/ stop lamp
Left turn indicator
Lights on ind
Logic
Lt park fuse 10a
Message center
Message request
Radio
Right front marker lamp
Right front park lamp
Right headlamp (w/o automatic headlamps control leveling system)
Right rear marker lamp
Right rear turn signal lamp
Right tail lamp
Right tail lamp assembly
Right tail/ stop lamp
Right turn indicator
Rt park fuse 10a
S116 (in forward lamp harness, 40 cm from right cooling fan connector)
S201
S24
S25
S26
S27
S405
S406
Turn signal on theft attempted
W/ hid
W/o hid

GROUND DISTRIBUTION

Ground Distribution Wiring Diagram (1 of 5) for Cadillac CTS V 2004

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List of elements for Ground Distribution Wiring Diagram (1 of 5) for Cadillac CTS V 2004:

(3.2l left rear of engine) g107
(3.2l, 3.6l): right side of engine compartment) (5.7l): on inner fender wall, near battery) g105
(3.6l: back of right cylinder head) (5.7l: on engine block, near generator) (3.2l: on engine block, near starter) g102
(in cellular antenna coax cable, about 31 cm from g304) s309
(on right
(on right frame rail, near abs module) g110
(on the rear package shelf, left of subwoofer) g304
(under center console) g306
A/c compressor clutch
A/t
After boil coolant pump
Automatic transmission
B12
Back-up switch
Battery
Brake fluid level switch
Cellular antenna
Coolant bypass valve solenoid
Coolant level switch
Dash integration module (dim)
Electronic brake control module (ebcm)
Engine control module (ecm)
G100 (3.2l: left rear side of engine)
G101 (near left front strut tower)
Headlamp washer fluid pump
If equipped
Ignition coil bank 1
Ignition coil bank 2
Inflatable restraint sensing & diagnostic module (sdm)
Left heated washer nozzle
M/t
Nca
Rear window defogger
Right heated washer nozzle
Transmission control module (tcm)
Vehicle communication interface module (vcim)
Vehicle speed sensor (vss)
W/ high pressure headlamp washer
W/o high pressure headlamp washer
Washer fluid level switch
Windshield washer fluid pump
Windshield wiper/ washer module
``c" pillar) g303

Ground Distribution Wiring Diagram (2 of 5) for Cadillac CTS V 2004

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List of elements for Ground Distribution Wiring Diagram (2 of 5) for Cadillac CTS V 2004:

(right front of engine compartment) underhood fuse block
(w/ hid) left headlamp
(w/ hid) right headlamp
A/t
Accessory relay
Auxiliary cooling fan
Auxiliary power outlet
B12
Blower motor control processor
Cigar lighter
Electronic prndl
From c312)
Front headlamp leveling sensor
Front passenger door module (fpdm)
G104 (on right body rail, near right headlamp)
G201 (behind right kick panel)
Hood ajar switch
Horn assembly
Hvac control module
Ign 1 relay
Left cooling fan
Left front fog lamp
Left front marker lamp
Left front turn signal lamp
Left front turn signal/ fog lamp assembly
Left headlamp
M/t
R16
R35
R46
Right front fog lamp
Right front marker lamp
Right front turn signal lamp
Right front turn signal/ fog lamp assembly
Right headlamp
Right rear door module (rrdm)
S/p fan relay
S202 (in the i/p harness, 48 cm from hazard switch connector)
Trailer provisions
W/ automatic headlamps control leveling system
W/ hid
W/o automatic headlamps control leveling system
W/o hid

Ground Distribution Wiring Diagram (3 of 5) for Cadillac CTS V 2004

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List of elements for Ground Distribution Wiring Diagram (3 of 5) for Cadillac CTS V 2004:

(w/ 8-way adjuster power passenger seat) passenger seat adjuster switch
(w/ front heater seat) front passenger heated seat module
B12
Dash integration module (dim)
Data link connector (dlc)
Driver door module (ddm)
Driver heated seat module
Driver seat adjuster switch
Front passenger heated seat module
G200 (behind left kick panel)
G307 (on floor, left of driver's seat)
Hazard switch
Ignition key alarm switch
Inflatable restraint steering wheel module coil
Instrument panel cluster (ipc)
Left rear door module (lrdm)
Left steering wheel controls
Memory seat module (msm)
Passenger lumbar adjuster switch
Passenger seat adjuster switch
Right steering wheel controls
S200 (in the i/p harness, 11.5 cm from sp200)
S201 (in the i/p harness, 54 cm from hazard switch connector)
S205 (in steering column harness, 12.7 cm from c202)
S208 (in steering column harness, 12.7 cm from c202)
S305 (in body harness, 18 cm from left rear fuse block)
S350 (in driver seat harness, 8 cm from msm connector)
Theft deterrent control module
Traction control switch
Turn signal/ hazard flasher module
Turn signal/ multi-function switch
W/ 8-way adjuster power passenger seat
W/ 8-way adjuster power passenger seat, front heater seat
W/ front heater seat
W/ memory seat
W/ power lumbar control seat
W/o memory seat
W/o power lumbar control seat

Ground Distribution Wiring Diagram (4 of 5) for Cadillac CTS V 2004

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List of elements for Ground Distribution Wiring Diagram (4 of 5) for Cadillac CTS V 2004:

(below right rear seat) right rear fuse block
(if equipped)
(if equipped) digital radio receiver
(w/ navigation) traffic information receiver
(w/ navigation) tv antenna module
Audio amplifier
B11
Bas relay
Center high mounted stop lamp (chmsl)
Coil
Courtesy lamps
Driver sunshade
Fuel pump & sender assembly
Fuel pump relay
G401 (rear of right rear shock tower)
G402 (rear of left rear shock tower)
Ign 1 relay
Ign 3 relay
Inside rearview mirror (isrvm)
Left backup lamp
Left license lamp
Left rear fog lamp
Left rear fuse block (below left rear seat)
Left rear marker lamp
Left rear tail lamp
Left rear tail/ stop lamp
Left rear turn signal lamp
Left tail lamp assembly
Left vanity lamps
License lamp assembly
Nca
Overhead console
Passenger sunshade
R21
R25
R36
Radio
Rear compartment lid release actuator
Rear headlamp leveling sensor
Rear integration module (rim)
Right backup lamp
Right license lamp
Right rear fog lamp
Right rear marker lamp
Right rear tail lamp
Right rear tail/stop lamp
Right rear turn signal lamp
Right tail lamp assembly
Right vanity lamps
S401 (in license lamp harness, 40 cm from c421)
S405 (in left tail lamp harness, 12.7 cm from c410)
S406 (in right tail lamp harness, 12.7 cm from c411)
Sunroof control switch
Sunroof module
Sunshade)
Theft deterrent alarm
Vehicle communication interface module (vcim)
W/ electric sliding sun roof glass
W/o electric sliding sun roof glass

Ground Distribution Wiring Diagram (5 of 5) for Cadillac CTS V 2004

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List of elements for Ground Distribution Wiring Diagram (5 of 5) for Cadillac CTS V 2004:

A/c compressor clutch
Automatic transmission
Backup lamp switch
Engine control module (ecm)
Engine oil level/ temperature sensor
G130 (3.6l) (rear of right cylinder head)
G131 (3.6l) (left rear of engine)
G132 (3.6l) (front of right cylinder head)
G133 (3.6l) (right front of engine)
G140 (5.7l) (rear of left cylinder head)
G141 (5.7l) (rear of left cylinder head)
G142 (5.7l) (rear of right cylinder head)
Ignition coil 1
Ignition coil 2
Ignition coil 3
Ignition coil 4
Ignition coil 5
Ignition coil 6
Ignition coil/ module 1
Ignition coil/ module 2
Ignition coil/ module 3
Ignition coil/ module 4
Ignition coil/ module 5
Ignition coil/ module 6
Ignition coil/ module 7
Ignition coil/ module 8
Mass air flow (maf) sensor
Nca
Powertraiin control module (pcm)
Powertrain control module (pcm)
S143 (in engine harness, 15 cm from g130)
S144 (in engine harness, 20 cm from g130)
S149 (in engine harness, 15 cm from coil 4)
S150 (in engine harness, 15 cm from coil 4)
S155 (in engine harness, approximately 17.5 cm from c101)
S160 (in engine harness, approximately 8 cm from ect connector)
S167 (in ignition coil/module harness, on left valve cover, 5 cm from c131)
S168 (in ignition coil/module harness, on right valve cover, 5 cm from c132)
Throttle actuator control (tac) module
Transmission control module (tcm)

HEADLIGHTS

Headlights Wiring Diagram (1 of 2) for Cadillac CTS V 2004

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List of elements for Headlights Wiring Diagram (1 of 2) for Cadillac CTS V 2004:

(behind the left kick panel) g200
(in right front of passenger compt, under dash, above steering column) sp200
(in steering wheel control harness, 15.2 cm from c208) (m/t) s210
6 spd m/t
A11
A12
Ambient light sens sig
Auto
B c2
Class 2 (dim)
Class 2 serial data
Coil sply volt ctrl
Computer data lines system
Dash integration module (under right side of dash, above right closeout/insulator panel)
E10
F11
F12
F13
F15
Flash to pass signal
Flash to pass switch signal
Fog lamp fuse 15a
Fog lamp relay
Fog lamp rly ctrl
Front fog lamp ind
Front fog lamp switch
Ft fog lamp sw sig
G104 (on right body rail, near right headlamp)
Head
Headlamp on signal
Headlamp relay control
Hi beam rly ctrl
High beam ind
Hot at all times
Hot in run or start
Hvac control module (behind center of dash, below radio)
Instrument panel cluster (ipc)
J c4
K c1
Left front fog lamp
Left front turn signal/ fog lamp assembly
Lo beam rly control
Logic
Low
Low reference
Lt sunload sens sig
M/t
Nca
Off
Others
Park
Park lamp sw on sig
Right front fog lamp
Right front turn signal/ fog lamp assembly
Rt sunload sens sig
S201
S208
Sentinel display
Sunload sensor (top center of i/p, on defrost grill)
Turn signal/ multifunction switch
Underhood fuse block (right front of engine compartment)

Headlights Wiring Diagram (2 of 2) for Cadillac CTS V 2004

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List of elements for Headlights Wiring Diagram (2 of 2) for Cadillac CTS V 2004:

(on right body rail, near right headlamp) g104
Hi beam relay
High beam
Hot at all times
Left headlamp
Low beam
Low beam/hid relay
Lt hi beam fuse 10a
Lt low beam fuse 20a
Nca
R23
R24
R25
R26
R27
R28
R29
R30
Right headlamp
Rt hi beam fuse 10a
Rt low beam fuse 20a
Underhood fuse block (right front of engine compartment)
W/ high intensity discharge headlamps
W/o high intensity discharge headlamps

HORN

Horn Wiring Diagram for Cadillac CTS V 2004

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List of elements for Horn Wiring Diagram for Cadillac CTS V 2004:

(on right body rail, near right headlamp) g104
C202
C208
Dash integration module (under right side of dash, above right closeout/insulator panel)
Early production
Fuse block (steering column) (taped to steering column harness)
High note horn
Horn assembly
Horn fuse 15a
Horn relay
Horn relay ctrl
Horn switch
Horn switch fuse 2a
Hot at all times
Inflatable restraint steering wheel module (center of steering wheel)
Inflatable restraint steering wheel module coil (below inflatable restraint steering wheel module)
Late production
Low note horn
R10
R11
R12
R13
Tan
Underhood fuse block (right front of engine compartment)

INSTRUMENT CLUSTER

Instrument Cluster Wiring Diagram (1 of 2) for Cadillac CTS V 2004

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List of elements for Instrument Cluster Wiring Diagram (1 of 2) for Cadillac CTS V 2004:

(5.7l) left driver information center (dic)
(not used)
5.7l
Abs indicator
Anti-lock brakes system
Backlighting
Backlighting ctrl
Battery (+)
Brake fluid level switch (on brake fluid reservoir)
Break indicator
Charge indicator
Class 2
Class 2 (dim)
Class 2 (ebcm)
Class 2 (ecm)
Class 2 (rim)
Class 2 (sdm)
Computer data lines system
Cruise indicator
Ecm/tcm fuse 10a
Elec prndl fuse 10a
Electronic prndl
Eng speed sig
Engine controls system
Engine coolant temperature indicator
Exterior lights system
Fasten safety belt indicator
Front fog lamps indicator
Fuel level
G101 (near left front strut tower)
G200 (behind the left kick panel)
G201 (behind right kick panel)
Gnd
Ground
Ground ground steering wheel ctrl sig serial data
High beam indicator
Hot at all times
Hot in acc or run
Hot in run or start
Ignition 1 voltage
Instrument panel cluster (ipc)
Led dimming sig
Left turn indicator
Level sens sig
Lights on indicator
Logic
Low engine oil pressure ind
Low tire pressure indicator
Malfunction ind lamp (mil)
Oil temp sens sig
Park brake sw sig
Park brake switch (on park brake assembly)
Pnk
Rear fog lamps indicator
Right driver information center (dic) (5.7l)
Right turn indicator
S201
Security indicator
Serial data
Sir indicator
Skip shift ind
Speedometer
Speedometer control
Sport mode indicator
Tachometer
Tachometer control
Tcm/ipc fuse 15a
Temperature
Traction control off indicator
Transmission range sw sig a
Transmission range sw sig b
Transmission range sw sig c
Transmission range sw sig p
Transmissions system
Trip reset sw sig
Trip reset switch
Trip/ odometer
Trip/odometer ctrl
Underhood fuse block (right front of engine compt)
Vehicle speed sig
Voltage
Wait to start indicator (not used)
Winter mode indicator

Instrument Cluster Wiring Diagram (2 of 2) for Cadillac CTS V 2004

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List of elements for Instrument Cluster Wiring Diagram (2 of 2) for Cadillac CTS V 2004:

(in engine harness, 20 cm from pcm) s140
(in fuel tank harness, 40 cm from c420)
(left side of fuel tank)
3.2l
3.6l
5 volt reference
5.7l
Back
C12
Clear dic sig
Clr
Computer data lines system
Dic back sig
Engine control module (ecm) (front of right valve cover)
Engine controls system
Engine oil level/ temperature sensor (3.6l) (in oil pan)
Engine oil level/ temperature sensor (5.7l)
Engine oil pressure (eop) sensor (3.2l) (on front right side of engine)
Engine oil pressure (eop) sensor (3.6l) (in oil filter housing)
Engine oil pressure (eop) sensor (5.7l)
Engine speed sig
Except 5.7l
Fuel level sens sig
Fuel level sensor
Fuel pump & sensor assembly (in fuel tank)
G142 (rear of right cylinder head)
Ground
Inflatable restraint steering wheel module coil (below inflatable restraint steering wheel module)
Info
Information dn sw sig
Information up sw sig
Left steering wheel controls
Logic
Low reference
Message center
Message request
Oil level sw sig
Oil pressure sens sig
Oil pressure sw sig
Oil temp sens sig
Powertrain control module (pcm) (5.7l)
Radio
S148 (in engine harness under throttle body, 11.5 cm towards the right)
S156 (approximately 24 cm from ebcm connector)
S400
Scroll dic sig
Secondary fuel sender assembly
Serial data
Steering wheel control assembly
Switch 1
Switch 2
Switch 3
Switch 4
Tan
Tune/sel
U2v, u2x, u2y
Vehicle speed sig
Vehicle speed signal

INTERIOR LIGHTS

Courtesy Lamps Wiring Diagram (1 of 2) for Cadillac CTS V 2004

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List of elements for Courtesy Lamps Wiring Diagram (1 of 2) for Cadillac CTS V 2004:

(under door trim panel)
5v reference
A11
A12
B10
C2 g
Class 2 serial data
Computer data lines system
Courtesy lamp switch
Courtesy lps on signal
Dash integration module (under right side of dash, above right closeout/ insulator panel)
Dim/ aldl fuse 10a
Dimmer sw low reference
Driver door latch assembly
Driver door module (on left door, under door trim)
Driver door open sw sig
Front passenger door latch assembly
Front passenger door module (on right front door, under door trim panel)
Front passenger door sw sig
G402 (rear of left rear shock tower)
Ground
Hot at all times
I/p lamps dimmer switch
Instrument illumination circuit
Left courtesy/reading lamp
Left rear door latch assembly
Left rear door module
Left rear door open sw sig
Overhead console
Right courtesy/reading lamp
Right rear door latch assembly
Right rear door module (on right rear door, under door trim panel)
Right rear door open sw sig
S314
Tan
Underhood fuse block (right front of engine compartment)

Courtesy Lamps Wiring Diagram (2 of 2) for Cadillac CTS V 2004

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List of elements for Courtesy Lamps Wiring Diagram (2 of 2) for Cadillac CTS V 2004:

(center of rear compartment lid) rear compartment lid release actuator
(in headliner harness, 39.5 cm from c305) s312
(in headliner harness, 69.5 cm from c305) s319
A10
A12
B10
B12
Class 2 serial data
Computer data lines system
Courtesy lamp ctrl
Courtesy lp ctrl
Courtesy lp relay ctrl
Courtesy lp voltage
Driver sunshade
Driver vanity lamps
Fd1
Fd2
G402 (rear of left rear shock tower)
Hot at all times
Int lamp relay
Interior lamp fuse 10a
Joint connector
Left footwell courtesy lamp
Left front door courtesy lamp
Lid ajar sw signal
Nca
Passenger sunshade
Passenger vanity lamps
R16
R17
R18
R20
Rear compartment courtesy lamp
Rear dome lamp
Rear integration module (under package shelf trim panel)
Right footwell courtesy lamp
Right front door courtesy lamp
Right rear fuse block (below right rear seat)
S10
S11
S314
Trunk diode

Instrument Illumination Wiring Diagram (1 of 2) for Cadillac CTS V 2004

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List of elements for Instrument Illumination Wiring Diagram (1 of 2) for Cadillac CTS V 2004:

(in the i/p harness, 47 cm from hazard switch connector) s203
5 volt reference
A11
A12
Auto head
B12
Backlight lamps ctrl
Backlights lamp ctrl
Battery
C2 b3
Class 2 serial data
Computer data lines system
Control power output
Dash integration module (under right side of dash, above right closeout/insulator panel)
Dim/ aldl fuse 10a
Dimmer switch signal
Dimming fuse 10a
Driver door lock switch
Driver door module (on left door, under door trim)
Driver door switch assembly (ddsa)
Driver dr mod fuse 10a
Electronic prndl (a/t)
G200 (behind the left kick panel)
G201 (behind right kick panel)
G402 (rear of left rear shock tower)
Ground
Hot at all times
I/p dimmer switch
Illumination lamp
Inc dim
Instrument panel cluster (ipc)
Joint connector
Led dimming signal
Left rear fuse block (below left rear seat)
Low reference
Memory/ personalization function switch
Off
Overhead console
Park
Park lamp relay
Park lamp sw on sig
Park lp rly ctrl
Psgr dr mod fuse 10a
R31
R32
R33
R34
Rear compartment lid release switch
Rear dr mod fuse 15a
Right rear fuse block (below right rear seat)
S12
S13
S14
S208
S308
S314
S321 (in headliner harness, 32.5 cm from dome lamp)
S501 (in left front door trim harness, 24 cm from driver door lock switch)
S502 (in left front door trim harness, 14.5 cm from ddsa)
Serial data
Sunroof control switch
Turn signal/ multi-function switch
Underhood fuse block (right front of engine compartment)

Instrument Illumination Wiring Diagram (2 of 2) for Cadillac CTS V 2004

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List of elements for Instrument Illumination Wiring Diagram (2 of 2) for Cadillac CTS V 2004:

(in right front door trim harness, 24.5 cm from door lock switch) s601
3.2l/3.6l
5.7l
A12
B12
Backlight lamps ctrl
Battery
Computer data lines system
Dimming fuse 2a
Front passenger door lock switch
Front passenger door module (on right front door, under door trim panel)
Front passenger window switch
Fuse block (steering column) (taped to steering column harness)
G200 (behind the left kick panel)
G201 (behind right kick panel)
Ground
Hazard switch
Illumi- nation lamp
Inflatable restraint steering wheel module coil (below inflatable restraint steering wheel module)
Left rear door module (under door trim panel)
Left rear window switch
Left steering wheel controls
Right rear door module (on right rear door, under door trim panel)
Right rear window switch
Right steering wheel controls
S200
S208
S602 (in right front door trim harness, 8.5 cm from window switch)
S701
Serial data

MEMORY SYSTEMS

Memory Mirrors Wiring Diagram (1 of 2) for Cadillac CTS V 2004

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List of elements for Memory Mirrors Wiring Diagram (1 of 2) for Cadillac CTS V 2004:

5v feed
5v reference
5v rtn
A12
B11
B12
Backlight lamps control
Battery
Class 2 serial data
Computer data lines system
Driver door module (on left door, under door trim)
Driver door switch assembly (ddsa)
Driver dr mod fuse 10a
Driver outside rearview mirror
Exit (ext)
G200 (behind the left kick panel)
Gnd
Ground
Ground rtn
Horiz motor
Horiz pos sensor
Horiz posit sensor
Hot at all times
Interior lights system
Left
Left horiz
Left rear fuse block (below left rear seat)
Logic
Low reference
Memory 1 switch signal
Memory 2 switch signal
Memory/personalization function switch
Mirror mtr down ctrl
Mirror mtr left ctrl
Mirror mtr right ctrl
Mirror mtr up ctrl
Nca
Outside rearview mirror switch
Right
Right horiz
S502 (in left front door trim harness, 14.5 cm from ddsa)
Sel left
Sel right
Vert down
Vert motor
Vert pos sensor
Vert up
Vertical posit sensor

Memory Mirrors Wiring Diagram (2 of 2) for Cadillac CTS V 2004

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List of elements for Memory Mirrors Wiring Diagram (2 of 2) for Cadillac CTS V 2004:

5v feed
5v reference
5v rtn
A12
B12
Battery
Class 2 serial data
Computer data lines system
Dr mod pwr circuit breaker 30a
Front passenger door module (on right front door, under door trim panel)
G201 (behind right kick panel)
Ground
Horiz motor
Horiz pos sensor
Horizontal posit sensor
Hot at all times
Left horiz
Low reference
Mirror mtr down ctrl
Mirror mtr left ctrl
Mirror mtr right ctrl
Mirror mtr up ctrl
Passenger outside rearview mirror
Psgr dr mod fuse 10a
Right horiz
Right rear fuse block (below right rear seat)
S303
Vert down
Vert motor
Vert pos sensor
Vert up
Vertical posit sensor

Memory Seat Wiring Diagram (1 of 2) for Cadillac CTS V 2004

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List of elements for Memory Seat Wiring Diagram (1 of 2) for Cadillac CTS V 2004:

5 volt reference
Battery positive voltage
Class 2 serial data
Dr lumbar horiz posit sens signal
Driver seat adjuster switch
E10
E11
E12
E13
E14
E15
E16
F10
F11
F12
F13
F14
F15
F16 c2
Front vertical down
Front vertical motor down control
Front vertical motor up control
Front vertical up
G307 (on floor, left of driver's seat)
Ground
Horizontal forward
Horizontal forward switch signal
Horizontal motor forward ctrl
Horizontal motor rearward control
Horizontal rearward
Horizontal rearward switch signal
Hot at all times
Left rear fuse block (below left rear seat)
Low reference
Lumbar forward switch signal
Lumbar rearward switch signal
Lumber motor forward control
Lumber motor rearward control
Mem/adapt seat fuse 10a
Memory seat module (msm) (under driver's seat)
Pnk
Rear vertical down
Rear vertical motor down control
Rear vertical motor up control
Rear vertical posit sens signal
Rear vertical up
Recline back switch signal
Recline forward
Recline forward switch signal
Recline motor forward control
Recline motor rearward control
Recline posit sens signal
Recline rearward
S350 (w/ heated seats)
S351
Seat circuit breaker 30a
Seat horiz posit sensor signal
Tan
Vertical down switch signal
Vertical posit sens signal
Vertical up switch signal

Memory Seat Wiring Diagram (2 of 2) for Cadillac CTS V 2004

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List of elements for Memory Seat Wiring Diagram (2 of 2) for Cadillac CTS V 2004:

(in driver seat harness, 10 cm from seat horizontal position sensor) s348
(in left seat harness, 15 cm from driver seat rear vertical position sensor) s349
Backlight lamps control
Class 2 serial data
Driver door module (on left door, under door trim)
Driver door switch assembly (ddsa)
Driver lumbar adjuster switch
Driver lumbar horizontal motor assembly
Driver seat front vertical motor
Driver seat front vertical position sensor
Driver seat horizontal motor
Driver seat horizontal position sensor
Driver seat rear vertical motor
Driver seat rear vertical position sensor
Driver seat recline motor
Driver seat recline position sensor
Exit (ext)
Forward
Gnd
Ground
Interior lights system
Memory 1 sw signal
Memory 1 switch signal
Memory 2 sw signal
Memory 2 switch signal
Memory/personalization function switch
Nca
Not used
Pnk
Rearward
S502 (in left front door trim harness, 14.5 cm from ddsa)
Sp300 (in passenger compartment, near left side of driver's seat)
Tan

NAVIGATION

Navigation Wiring Diagram for Cadillac CTS V 2004

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List of elements for Navigation Wiring Diagram for Cadillac CTS V 2004:

(coaxial cable)
(or 1782)
(or 655)
(or bare)
Audio amplifier (left side of trunk)
Audio fuse 10a
Bare
Battery
Class 2 serial data
Computer data lines system
Drain wire
G402 (rear of left rear shock tower)
Gps signal
Ground
Hot at all times
Infotainment system
Inside rearview mirror (isrvm)
Joint connector
Left rear fuse block (under left rear seat)
Mic out feed
Mic out return
Nav voice in (+)
Nav voice out (-)
Navigation antenna
Navigation voice low ref
Navigation voice signal
Pnk
Radio
S18
Sig
Vehicle communication interface module (vcim) (in rear compartment, behind right strut tower)
Vehicle communication system
Voice output (+)
Voice output (-)
Voice output ground

POWER DISTRIBUTION

Power Distribution Wiring Diagram (1 of 7) for Cadillac CTS V 2004

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List of elements for Power Distribution Wiring Diagram (1 of 7) for Cadillac CTS V 2004:

(3.2l)
(3.6l)
(except 3.2l)
(in engine harness, 15 cm from coil 1) s145
(in fuel injector harness, 15 cm from c121) s151
(in fuel injector harness, near c112) s108
(in ignition coil/module harness, on left valve cover, 5 cm from c131) s163
(in the engine harness, 45 cm from the underhood fuse block) s132
(not used)
(right front of engine compartment) underhood fuse block
3.2l
3.6l
5.7l
A/t
Battery
Blower fuse 40a
Blower relay
C1 g
C2 a12
Ccp fuse 10a
Dash integration module (dim)
Data link connector (dlc)
Dim/ aldl fuse 10a
Ecm fuse 15a
Ecm/tcm fuse 10a
Engine control module (ecm)
Evaporative emission (evap) canister purge solenoid valve
Evaporative emissions (evap) canister purge solenoid valve
Except 5.7l
Flasher fuse 15a
Fuel injector
Fusible link
Generator
Heated oxygen sensor (ho2s) bank 1 sensor 2
Heated oxygen sensor (ho2s) bank 2 sensor 2
Hi fan fuse 30a
Hi speed fan relay
Hvac control module
Ignition coil 1
Ignition coil 3
Ignition coil 5
Ignition coil/ module 1
Ignition coil/ module 3
Ignition coil/ module 5
Ignition coil/ module 7
Ignition manifold runner control (imrc) solenoid
Instrument panel cluster (ipc)
Intake manifold tuning valve (imtv) solenoid
Left rear fuse block (below left rear seat)
Low fan fuse 30a
Low speed fan relay
Main relay
Mass air flow (maf) sensor
Odd inj/ coil fuse 15a
Post 2 fuse 15a
Powertrain control module (pcm)
Pusher fan relay
R14
R19
R20
R39
R40
R47
R48
R49
R50
R51
R52
S/p fan relay
Spare fuse
Starter
Theft deterrent control module
To underhood fuse block (horn relay) (diagram 2 of 7)
To underhood fuse block (pre 2/cam fuse, 15a) (diagram 3 of 7)
Tos fuse 10a
Trailer provisions
Transmission control module (tcm)
Turn signal/ hazard flasher module
Vehicle speed sensor (vss) (manual transmission)
Volt check fuse 10a

Power Distribution Wiring Diagram (2 of 7) for Cadillac CTS V 2004

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List of elements for Power Distribution Wiring Diagram (2 of 7) for Cadillac CTS V 2004:

(3.2l)
(3.6l)
(in engine harness, approximately 8 cm from ebcm connector) s130
(right front of engine compartment) underhood fuse block
5.7l
Abs fuse 50a
Accessory relay
Comp clutch fuse 10a
Comp clutch relay
Drl relay
Elec prndl fuse 10a
Electronic brake control module (ebcm)
Electronic prndl (a/t)
Engine control module (ecm)
Except 5.7l
Fog lamp fuse 15a
Fog lamp relay
From ignition switch (pin 2) (diagram 4 of 7)
From underhood fuse block a (main relay) (diagram 1 of 7)
G104 (on right body rail, near right headlamp)
Hdlp wash circuit breaker 30a
Hdlp washer relay
High beam relay
Horn fuse 15a
Horn relay
Ign sw fuse 10a
L rear fuse 60a
Low beam/ hid relay
Park lamp relay
Powertrain control module (pcm)
R rear fuse 60a
R10
R11
R24
R28
R32
R35
R36
R37
R38
R56
R68
Spare fuse
Theft deterrent control module
Theft fuse 7.5a
To ignition switch (pin 6) (diagram 4 of 7)
To left rear fuse block (driver dr mod fuse, 10a) (diagram 5 of 7)
To left rear fuse block (pusher fan fuse, 30a) (diagram 5 of 7)
To right rear fuse block (dr mod pwr circuit breaker, 30a) (diagram 6 of 7)
To right rear fuse block (rim/ign sw fuse, 10a) (diagram 4 of 7)
To underhood fuse block (i/p out let fuse, 20a) (diagram 3 of 7)
Transmission control module (tcm) (a/t)
Windshield wiper/ washer module
Windshield wiper/ washer switch
Wpr mod fuse 30a
Wpr sw fuse 10a

Power Distribution Wiring Diagram (3 of 7) for Cadillac CTS V 2004

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List of elements for Power Distribution Wiring Diagram (3 of 7) for Cadillac CTS V 2004:

(3.2l)
(3.6l)
(a/t)
(accessory relay) (diagram 2 of 7)
(in body harness, 22 cm from a/c pressure switch connector)
(in engine harness, 15 cm from coil 5) s142
(in engine harness, 24.5 cm from ect sensor) s146
(in engine harness, approximately 20 cm from underhood fuse block) s162
(in fuel injector harness, 15 cm from c121) s152
(in ignition coil/module harness, on right valve cover, 5 cm from c132) s164
(on right body rail, near right headlamp) g104
(right front of engine compartment) underhood fuse block
3.2l
3.6l
5.7l
A/t
A8 c2
Auxiliary power outlet
B+ mode
Battery saver mode
Camshaft actuator solenoid exhaust bank 1
Camshaft actuator solenoid exhaust bank 2
Camshaft actuator solenoid intake bank 1
Camshaft actuator solenoid intake bank 2
Camshaft position (cmp) sensor
Cigar lighter
Cigar relay
Clutch pedal position (cpp) sensor
Cmp clu relay
Coolant bypass valve solenoid
Dash integration module (dim)
Engine control module (ecm)
Evaporative emission (evap) canister purge solenoid valve
Even inj/ coil fuse 15a
Except 3.6l
Except 5.7l
Fog lamp relay
From ignition switch (via splice pack sp200) (pin 8) (diagram 4 of 7)
From underhood fuse block b (ecm fuse, 15a) (diagram 1 of 7)
From underhood fuse block h
Fuel injector 2
Fuel injector 4
Fuel injector 6
Fuel injector 8
G201 (behind right kick panel)
Heated oxygen sensor (ho2s) bank 1 sensor 1
Heated oxygen sensor (ho2s) bank 2 sensor 1
Htr vlv/ cltch fuse 10a
I/p outlet fuse 20a
Ign 1 relay
Ignition coil 2
Ignition coil 4
Ignition coil 6
Ignition coil/ module 2
Ignition coil/ module 4
Ignition coil/ module 6
Ignition coil/ module 8
Instrument panel cluster (ipc)
Intake manifold runner control (imrc) solenoid
M/t
Outlet fuse 30a
Pnk
Pnk a
Pnk/ (in engine harness, 15.5 cm from c101) s170
Powertrain control module (pcm)
Pre o2/ cam fuse 15a
R43
R44
R45
R46
R55
R59
R60
R61
R62
R63
R64
Reverse lockout solenoid
S131
S202
S308
Skip shift solenoid
Splice pack sp200
Starter fuse 30a
Starter relay
Tcm/ipc fuse 15a
Throttle actuator control (tac) module
To underhood fuse block (wash noz fuse, 10a) (diagram 4 of 7)
Transmission control module (tcm)

Power Distribution Wiring Diagram (4 of 7) for Cadillac CTS V 2004

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List of elements for Power Distribution Wiring Diagram (4 of 7) for Cadillac CTS V 2004:

(3.2l)
(3.6l)
(in steering column harness, 12.7 cm from c202) s207
3.2l
3.2l & 3.6l
3.6l
5.7l
A11
Acc
Accessory
Cruise control switch
Cruise control switch fuse 2a
Dash integration module (dim)
Engine control module (ecm)
Except 5.7l
From underhood fuse block (ign sw fuse, 10a) (diagram 2 of 7)
From underhood fuse block (r rear fuse, 60a) (connector c3, pin 1) (diagram 2 of 7)
From underhood fuse block (tcc/et fuse, 10a) (diagram 3 of 7)
Ign mod/maf fuse 15a
Ignition 1
Ignition coil bank 1 (3.2l)
Ignition coil bank 2
Ignition lock cylinder control actuator
Ignition switch
Inflatable restraint steering wheel module coil
Left headlamp
Left heated washer nozzle
Mass air flow (maf) sensor
Off/lock
Pnk
Powertrain control module (pcm)
Rear integration module (rim)
Right headlamp
Right heated washer nozzle
Right rear fuse block (below right rear seat)
Right steering wheel controls
Rim/ ign sw fuse 10a
Run
S200 (in the i/p harness, 11.5 cm from sp200)
Spare fuse
Splice pack sp200
Start
Steering column fuse block (taped to steering column harness)
Strg ctls fuse 10a
To left rear fuse block (ign 3 relay) (diagram 6 of 7)
To right rear fuse block (ign 1 relay) (diagram 7 of 7)
To underhood fuse block (accessory relay) (connector c4, pin 37) (diagram 2 of 7)
To underhood fuse block (cmp clu relay) (diagram 3 of 7)
Turn signal switch
Turn signal/ multifunction switch
Underhood fuse block (right front of engine compartment)
W/ automatic headlamps control leveling system
Wash noz fuse 10a

Power Distribution Wiring Diagram (5 of 7) for Cadillac CTS V 2004

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List of elements for Power Distribution Wiring Diagram (5 of 7) for Cadillac CTS V 2004:

(below left rear seat) left rear fuse block
(in driver seat harness, 8 cm from msm connector) s351
(in headliner harness, 22.5 cm from radio antenna module) s313
A12
Amp fuse 30a
Audio amplifier
Audio fuse 10a
Bas fuse 15a
Bas relay
Digital radio receiver
Driver adjuster seat switch
Driver door module (ddm)
Driver dr mod fuse 10a
Driver heated seat module
Driver lumbar adjuster switch
F11
From underhood fuse block (l rear fuse, 60a) (connector c2, pin 1) (diagram 2 of 7)
From underhood fuse block (l rear fuse, 60a) (connector c2, pin 2) (diagram 2 of 7)
Garage door opener
Joint connector
L frt htd seat mod fuse 10a
Left rear door module (lrdm)
Left rear fuse block (ign 3 relay) (diagram 6 of 7)
Mem/adapt seat fuse 10a
Memory seat module (msm)
Pusher fan fuse 30a
Pusher fan relay (trailer provisions)
R31
R32
R36
R37
Radio
Radio antenna module
Rear dr mod fuse 15a
Rev lamp relay
Reverse lamp fuse 10a
Right rear door module (rrdm)
S12
S13
S14
S15
S17
S18
S19
S20
S21
S22
S23
Spare fuse
Trk dr rel sol relay
Trunk dr release fuse 10a
Vehicle communication interface module (vcim)
W/ 7 speaker system
W/o 7 speaker system

Power Distribution Wiring Diagram (6 of 7) for Cadillac CTS V 2004

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List of elements for Power Distribution Wiring Diagram (6 of 7) for Cadillac CTS V 2004:

(below right rear seat) right rear fuse block
(except 5.7l) (5.7l)
(in body harness, 108 cm from c700) s304
(in body harness, 108 cm from c800) s303
(in i/p harness, 11.5 cm from sp200) s200
(in passenger seat harness, 12.7 cm from c307) s352
A/t shift lock control solenoid assembly
A/t shift shift lock control solenoid
A11
After boil fuse 10a
After boil relay
Canister vent fuse 10a
Ccp fuse 10a
Dr mod pwr circuit breaker 30a
Driver door module (ddm)
Driver heated seat module
Driver seat adjuster switch
Evaporative emissions (evap) canister vent solenoid valve
From ignition switch (pin 5) (diagram 4 of 7)
From left rear fuse block (trk dr release fuse, 10a) (diagram 5 of 7)
From underhood fuse block (r rear fuse, 60a) (connector c3, pin 2) (diagram 2 of 7)
Front headlamp leveling sensor
Front passenger door module (fpdm)
Front passenger heated seat module
Fuel pump motor relay
Fuel pump mtr fuse 15a 20a
G402 (rear of left rear shock tower)
Hdlp leveling fuse 10a
Hvac control module
Ign 3 fuse 10a
Ign 3 relay
Ignition lock cylinder control actuator
Ignition switch
Joint connector
Left rear door module (lrdm)
Left rear fuse block (below left rear seat)
Memory seat module (msm)
Passenger lumbar adjuster switch
Passenger seat adjuster switch
R frt htd seat mod fuse 10a
R11
R12
R21
R22
R23
R25
R37
Rap relay
Rear defog relay
Rear headlamp leveling sensor
Rear integration module
Rear integration module (rim)
Recirculation actuator
Right rear door module (rrdm)
Right rear fuse block (below right rear seat)
Rim/ign sw fuse 10a
Seat circuit breaker 30a
Spare fuse
Sunroof module
Tan
Underhood fuse block (right front of engine compt)
W/ memory
W/ power lumbar control seats
W/ power seats
W/o memory
W/o power lumbar control seats
W/o power seats

Power Distribution Wiring Diagram (7 of 7) for Cadillac CTS V 2004

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List of elements for Power Distribution Wiring Diagram (7 of 7) for Cadillac CTS V 2004:

A12
Abs fuse 10a
Air bag fuse 10a
Electronic brake control module (ebcm)
From ignition switch (via splice pack sp200, pin 9) (diagram 4 of 7)
From right rear fuse block (rim/ign sw fuse, 10a) (diagram 4 of 7)
Front passenger door module (fpdm)
G401 (rear of right rear shock tower)
Ign 1 relay
Inflatable restraint sensing & diagnostic module (sdm)
Inside rear view mirror
Int lamp relay
Interior lamp fuse 10a
Joint connector
Pnk
Psgr dr mod fuse 10a
R16
R17
R21
R22
R23
R25
R31
R32
Rear defog fuse 40a
Rear defog relay
Rear fog lamp fuse 10a
Rear fog lamp relay
Rear integration module (rim)
Right rear fuse block (below right rear seat)
Rim fuse 10a
S20
S21
S22
S23

POWER DOOR LOCKS

Power Door Locks Wiring Diagram (1 of 2) for Cadillac CTS V 2004

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List of elements for Power Door Locks Wiring Diagram (1 of 2) for Cadillac CTS V 2004:

(behind left kick panel) g200
(behind right kick panel) g201
A12
B10
B11
B12
Backlight lamps ctrl
Battery
Class 2 serial data
Computer data lines system
Door ajar signal
Door ajar sw signal
Door ajar switch signal
Door key sw unlock sig
Door key unlock switch signal
Door lock mtr lock ctrl
Door lock mtr unlk ctrl
Door lock sw lock sig
Door lock sw unlock sig
Door lock switch signal
Door open signal
Door open switch signal
Dr mod pwr circuit breaker 30a
Driver door latch assembly
Driver door module (on left door, under door trim)
Driver door switch assembly (ddsa)
Driver dr key sw signal
Driver dr mod fuse 10a
Front passenger door latch assembly
Front passenger door module (on right front door, under door trim panel)
Gnd
Ground
Hot at all times
Interior lights system
Joint connector
Keyless entry antenna signal
Left front door sw sig
Left rear fuse block (below left rear seat)
Memory seat switch
Psgr dr mod fuse 10a
Radio antenna module (above headliner, near rear window)
Rear compartment lid release switch
Rear dr mod fuse 15a
Rear glass antenna
Rfa grid
Right rear fuse block (below right rear seat)
S12
S13
S14
S20
S22
S303
S313
S502 (in left front door trim harness, 14.5 cm from ddsa)
Tan
Trunk dr release fuse 10a

Power Door Locks Wiring Diagram (2 of 2) for Cadillac CTS V 2004

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List of elements for Power Door Locks Wiring Diagram (2 of 2) for Cadillac CTS V 2004:

(behind left kick panel) g200
(behind right kick panel) g201
A12
Ajar
B10
B12
Backlight lamp ctrl
Backlight lamps control
Backlight lamps ctrl
Battery
Class 2 serial data
Computer data lines system
Door act lock ctrl
Door ajar switch signal
Door lock act lock ctrl
Door lock act unlk ctrl
Door lock unlock ctrl
Door open switch signal
Driver door lock switch
Front passenger door lock switch
Front passenger window switch
Ground
Interior lights system
Left rear door latch assembly
Left rear door module (under door trim panel)
Lock
Open
Right rear door latch assembly
Right rear door module (on right rear door, under door trim panel)
S602 (in right front door trim harness, 8.5 cm from window switch)
S701
Tan
Unlock

POWER MIRRORS

Automatic Day/Night Mirror Wiring Diagram for Cadillac CTS V 2004

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List of elements for Automatic Day/Night Mirror Wiring Diagram for Cadillac CTS V 2004:

(or bare)
(rear of left rear shock tower) g402
A12
Backup lamp voltage
Bare
Base
Class 2 serial data
Computer data lines system
Drain wire
Exterior lights system
Ground
Hot at all times
Hot in run or start
Ignition voltage
Inside rearview mirror (isrvm)
Joint connector
Key pad sig
Led signal
Left rear fuse block (below left rear seat)
Luxury
Microphone
Microphone low ref
Microphone sig
Pnk
Pnk s21
R36
R37
R38
R40
Radio
Rear integration module (under package shelf trim panel)
Rev lamp fuse 10a
Rev lamp relay
Reverse lamp ctrl
Right rear fuse block (below right rear seat)
Rim fuse 10a
S23
Vehicle communication interface module (vcim) (in rear compt, behind right strut tower)

Power Mirrors Wiring Diagram for Cadillac CTS V 2004

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List of elements for Power Mirrors Wiring Diagram for Cadillac CTS V 2004:

A12
B11
B12
Battery
Class 2 serial data
Computer data lines system
Down
Dr mod pwr circuit breaker 30a
Driver door module (on left door, under door trim)
Driver door switch assembly (ddsa)
Driver dr mod fuse 10a
Driver outside rearview mirror
Front passenger door module (on right front door, under door trim panel)
G200 (behind the left kick panel)
G201 (behind right kick panel)
Ground
Ground rtn
Horiz motor
Hot at all times
Interior lights system
Left
Left mirror mtr-down
Left mirror mtr-left
Left mirror mtr-right
Left mirror mtr-up
Left rear fuse block (below left rear seat)
Logic
Outside rearview mirror switch
Passenger outside rearview mirror
Psgr dr mod fuse 10a
Right
Right mirror motor-up
Right mirror mtr -down
Right mirror mtr-left
Right mirror mtr-right
Right rear fuse block (below right rear seat)
S303
S502 (in left front door trim harness, 14.5 cm from ddsa)
Sel left
Sel right
Vert motor

POWER SEATS

Heated Seats Wiring Diagram for Cadillac CTS V 2004

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List of elements for Heated Seats Wiring Diagram for Cadillac CTS V 2004:

(on floor, left of driver's seat) g307
A11
A12
B12
Battery
Class 2 serial data
Computer data lines system
Dash integration module (dim) (under right side of dash, above right closeout/insulator panel)
Driver heated seat
Driver heated seat status
Driver heated seat switch
Driver high/low signal
Driver seat back heated seat element
Driver seat front cushion heated seat element
Driver seat rear cushion heated seat element
Driver's heated seat module (under driver's seat)
E10
Front passenger heated seat
Front passenger seat back heated seat element
Front passenger seat cushion front heated seat element
Front passenger seat cushion rear heated seat element
Ground
Heated seat element control
Heated seat element voltage
Heated seat high/low signal
Heated seat module status sig
Heated seat module status signal
Heated seat sensor low ref
Heated seat temp sens signal
Hot at all times
Hot in run
Hvac control module (behind center of dash, below radio)
Ign 3 fuse 10a
Ignition 3 voltage
Joint connector
Left rear fuse block (below left rear seat)
Logic
Lt frt htd seat mod fuse 10a
Passenger heated seat status
Passenger heated seat switch
Passenger high/low signal
Passenger's heated seat module (under passenger's seat)
Pnk
R frt htd seat mod fuse 10a
Radio
Rear integration module (under package shelf trim panel)
Right rear fuse block (below right rear seat)
S305 (w/o power lumbar)
S320 (w/ power lumbar)
S350
Seat temp sensor low ref
Seat temp sensor signal
Thermistor

Passenger"s Lumbar Wiring Diagram for Cadillac CTS V 2004

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List of elements for Passenger"s Lumbar Wiring Diagram for Cadillac CTS V 2004:

Forward
G307 (on floor, left of driver's seat)
Hot at all times
Left rear fuse block (below left rear seat)
Passenger lumbar adjuster switch
Passenger lumbar horizontal motor
Rearward
S320
S352
Seat circuit breaker 30a

Power Seats Wiring Diagram for Cadillac CTS V 2004

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List of elements for Power Seats Wiring Diagram for Cadillac CTS V 2004:

(on floor, left of driver's seat) g307
Aft
Battery
Down
Driver seat adjuster switch
Driver seat front vertical motor
Driver seat horizontal motor
Driver seat rear vertical motor
Driver seat recline motor
Front vertical down
Front vertical up
Fwd
Gnd
Horizontal forward
Horizontal rearward
Hot at all times
Left rear fuse block (below left rear seat)
Passenger seat adjuster switch
Passenger seat front vertical motor
Passenger seat horizontal motor
Passenger seat rear vertical motor
Passenger seat recline motor
Rear vertical down
Rear vertical up
Recline forward
Recline rearward
S304 (w/ passenger power seats)
S305 (w/o power lumbar)
S320 (w/ power lumbar)
S350 (w/ heated seats)
S352 (w/ power lumbar)
Seat circuit breaker 30a
Tan

POWER TOP/SUNROOF

Sunroof Wiring Diagram for Cadillac CTS V 2004

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List of elements for Sunroof Wiring Diagram for Cadillac CTS V 2004:

(in sunroof harness, 9 cm from sunroof module)
Close
G401 (rear of right rear shock tower)
Ground
Hall effect sensor 1
Hall effect sensor 2
Hot at all times
Illumination +
Illumination -
Interior lights system
Limit switch
Nca
Open
Pnk
Rap relay
Rap relay coil ctrl
Rear integration module (under package shelf trim panel)
Right rear fuse block (below right rear seat)
S318
Solid state (close)
Solid state (open)
Sunroof control switch
Sunroof limit switch low reference
Sunroof limit switch stop signal
Sunroof mod fuse 30a
Sunroof module
Sunroof motor (at left front corner of sunroof module)
Sunroof motor close control
Sunroof motor open control
Sunroof obstruction sensor 12 vref
Sunroof obstruction sensor 2 signal
Sunroof obstruction sensor signal
Sunroof switch low reference
Sunroof switch-data 1
Sunroof switch-data 2
Sunroof switch-data 3
Sunroof switch-data 4
Sunroof switch-data 5
Sunroof switch-data 6
Sunroof switch-low reference
Tan
Vehicle speed signal

POWER WINDOWS

Power Windows Wiring Diagram (1 of 2) for Cadillac CTS V 2004

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List of elements for Power Windows Wiring Diagram (1 of 2) for Cadillac CTS V 2004:

A12
B11
B12
Battery
Battery positive voltage
Class 2 serial data
Computer data lines system
Door locks system
Down control
Down sig
Dr mod pwr c/b circuit breaker 30a
Driver door module (on left door, under door trim)
Driver dr mod fuse 10a
Driver window motor
Express signal
Front passenger door module (on right front door, under door trim panel)
Front passenger window motor
Front passenger window switch
G200 (behind the left kick panel)
G201 (behind right kick panel)
Ground
High speed serial data
Hot at all times
Interior lights system
Joint connector
Left rear fuse block (below left rear seat)
Low reference
Low speed serial data
Pnk
Psgr dr mod fuse 10a
Rear dr mod fuse 15a
Right rear fuse block (below right rear seat)
S12
S13
S14
S303
S602 (in right front door trim harness, 8.5 cm from window switch)
Up control
Up signal

Power Windows Wiring Diagram (2 of 2) for Cadillac CTS V 2004

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List of elements for Power Windows Wiring Diagram (2 of 2) for Cadillac CTS V 2004:

(on right rear door, under door trim panel) right rear door module
A12
B12
Backlights lamps ctrl
Battery
Class 2 serial data
Computer data lines system
Door locks system
Down control
Down signal
Driver door switch assembly (ddsa)
Drv window down sig
Drv window express sig
Drv window up sig
Express signal
Front passenger down sig
Front passenger express sig
Front passenger up sig
G200 (behind the left kick panel)
G201 (behind right kick panel)
Ground
Left rear door module (under door trim panel)
Left rear window motor
Left rear window switch
Logic
Lr window down sig
Lr window express sig
Lr window up sig
Right rear window motor
Right rear window switch
Rr window down sig
Rr window express sig
Rr window up sig
S701
Up control
Up signal
Window lock out

RADIO

Radio Wiring Diagram, Base (1 of 2) for Cadillac CTS V 2004

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List of elements for Radio Wiring Diagram, Base (1 of 2) for Cadillac CTS V 2004:

(dd8) inside rearview mirror
(or 1782)
(or 655)
(or bare)
(rear of left rear shock tower) g402
(right rear package shelf) (w/o gps) navigation antenna
Am/fm antenna signal
Amp fuse 30a
Antenna signal
Audio fuse 10a
Bare
Battery
Cellular microphone signal
Class 2 serial data
Coaxial cable
Coil 1
Coil 2
Computer data lines system
Drain
Drain wire
Fm composite signal
Gps sig
Ground
Hot at all times
Info down switch signal
Information up sw signal
Instrument cluster system
Joint connector
Keyless entry/tire pressure antenna signal
Left a pillar speaker (tweeter)
Left audio signal (+)
Left audio signal (-)
Left front door speaker (midrange)
Left rear fuse block (below left rear seat)
Modern ground (not used)
Modern receive (not used)
Modern transmit (not used)
Pnk
Radio
Radio antenna module (above headliner, near rear window)
Radio front glass antenna
Radio rear glass antenna
Rear speaker (subwoofer)
Red
Remote radio ctrl voltage
Return voice in signal
Rfa rear window antenna
Right audio signal (+)
Right audio signal (-)
S18
S22
S313
Steering wheel ctrls sig
Tan
U2y/u26
Uav
Vehicle speed signal
Voice in signal

Radio Wiring Diagram, Base (2 of 2) for Cadillac CTS V 2004

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List of elements for Radio Wiring Diagram, Base (2 of 2) for Cadillac CTS V 2004:

(midrange) left rear door speaker
(midrange) right front door speaker
(midrange) right rear door speaker
(rear of left rear shock tower) g402
(tweeter) right a pillar speaker
A10
A11
Audio amplifier (left side of trunk)
B10
B11
B12
Bare
Battery
C12
C202 c1
Cellular telephone voice low ref
Cellular telephone voice signal
Class 2 serial data
Computer data lines system
Drain wire
Fuse block (steering column) (early production) (taped to steering column harness)
G200 (behind the left kick panel)
Ground
Inflatable restraint steering wheel module coil (below inflatable restraint steering wheel module)
Interior lights system
Left fnt low level audio sig (+)
Left fnt low level audio sig (-)
Left front midrange spkr out (+)
Left front midrange spkr out (-)
Left front tweeter spkr out (+)
Left front tweeter spkr out (-)
Left rear midrange spkr out (+)
Left rear midrange spkr out (-)
Left steering wheels controls
Left subwoofer spkr out (+)
Left subwoofer spkr out (-)
Low ref
Mic out
Mic out rtn
Mic out shield
Modern ground (not used)
Modern receiver (not used)
Modern trasmid (not used) (not used)
Nca
Pnk
Rdt1
Rdt2
Right fnt low level audio sig (+)
Right fnt low level audio sig (-)
Right fnt midrange spkr out (+)
Right fnt midrange spkr out (-)
Right front tweeter spkr out (+)
Right front tweeter spkr out (-)
Right rear midrange spkr out (+)
Right rear midrange spkr out (-)
Right steering wheels controls
Right subwoofer spkr out (+)
Right subwoofer spkr out (-)
S208
Steering wheel control assembly (3.2l/3.6l)
Steering wheel control switch fuse 2a
Sw1 ent
Sw2 back
Sw3
Sw4
Sw5
Sw6
Tan
Vehicle communication interface module (vcim) (in rear compartment, behind right strut tower)
Voice signal

Radio Wiring Diagram, Luxury (1 of 2) for Cadillac CTS V 2004

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List of elements for Radio Wiring Diagram, Luxury (1 of 2) for Cadillac CTS V 2004:

(dd8) inside rearview mirror
(or 1782)
(or 655)
(rear of left rear shock tower) g402
(right rear package shelf) (w/o gps) navigation antenna
10a
Am/fm antenna signal
Amp fuse 30a
Antenna signal
Audio common
Audio fuse 10a
Bare
Battery
Cellular microphone signal
Class 2 serial data
Coaxial cable
Computer data lines system
Digital radio antenna (center rear of roof)
Digital radio receiver (u2k/u2l) (left side of rear package shelf)
Drain
Drain wire
Fm composite signal
Gps sig
Ground
Hot at all times
Info down switch signal
Information up sw signal
Instrument cluster system
Joint connector
Keyless entry/tire pressure antenna signal
Left audio signal (+)
Left audio signal (-)
Left rear fuse block (below left rear seat)
Modern ground (not used)
Modern receive (not used)
Modern transmit (not used)
Nca
Noise compensation microphone (in overhead console)
Pnk
Radio
Radio antenna module (above headliner, near rear window)
Radio front glass antenna
Radio rear glass antenna
Red
Remote radio ctrl voltage
Return voice in signal
Rfa rear window antenna
Right a pillar speaker (tweeter)
Right audio signal (+)
Right audio signal (-)
Right front door speaker
S18
S19
S22
S313
Satellite antenna
Satellite antenna signal
Steering wheel ctrls sig
Tan
Terrestrial antenna
Terrestrial antenna signal
Trunk dr release fuse
U2y/u26
Uav
Uav/u2x/ u2y
Vehicle speed signal
Voice in signal
Voice output (+)
Voice output (-)
Voice output ground

Radio Wiring Diagram, Luxury (2 of 2) for Cadillac CTS V 2004

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List of elements for Radio Wiring Diagram, Luxury (2 of 2) for Cadillac CTS V 2004:

(in passenger compartment, near left side of driver's seat) sp300
(midrange) left rear door speaker
(rear of left rear shock tower) g402
(subwoofer) rear speaker
A10
A11
A12
Audio amplifier (left side of trunk)
B10
B11
B12
Bare
Battery
C1 c202
C12
Cellular telephone voice low ref
Cellular telephone voice signal
Class 2 serial data
Computer data lines system
Drain wire
Front center speaker out (+)
Front center speaker out (-)
Front speaker (center)
Fuse block (steering column) (early production) (taped to steering column harness)
G200 (behind the left kick panel)
Ground
Inflatable restraint steering wheel module coil (below inflatable restraint steering wheel module)
Interior lights system
Left a pillar speaker (tweeter)
Left front door speaker (tweeter)
Left front low level signal (+)
Left front low level signal (-)
Left front tweeter spkr out (+)
Left front tweeter spkr out (-)
Left rear midrange spkr out (+)
Left rear midrange spkr out (-)
Left steering wheels controls
Low ref
Mic out
Mic out rtn
Modern ground (not used)
Modern receiver (not used)
Modern tranmid (not used)
Navigation voice in (+)
Navigation voice out (-)
Noise compensation micro voltage
Pnk
Rdt1
Rdt2
Right front low level signal (+)
Right front low level signal (-)
Right front tweeter spkr out (+)
Right front tweeter spkr out (-)
Right rear door speaker
Right rear midrange spkr out (-)
Right steering wheels controls
S208
Steering wheel control assembly (3.2l/3.6l)
Steering wheel control sw fuse 2a
Subwoofer spkr out (+)
Subwoofer spkr out (-)
Sw1 ent
Sw2 back
Sw3
Sw4
Sw5
Sw6
Tan
Vehicle communication interface module (vcim) (in rear compartment, behind right strut tower)
Voice signal

SHIFT INTERLOCK

Ignition Lock Solenoid Wiring Diagram for Cadillac CTS V 2004

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List of elements for Ignition Lock Solenoid Wiring Diagram for Cadillac CTS V 2004:

A/t shift lock control solenoid assembly (in center console)
A11
A12
Class 2 serial data
Computer data lines system
Dash integration module (under right side of dash, above right closeout/insulator panel)
Hot at all times
Ignition lock cyl ctrl
Ignition lock cylinder control actuator (on steering column)
Ignition lock cylinder control switch
Right rear fuse block (below right rear seat)
Rim/ign sw fuse 10a
S200
Tan

Shift Interlock Wiring Diagram for Cadillac CTS V 2004

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List of elements for Shift Interlock Wiring Diagram for Cadillac CTS V 2004:

A/t shift lock control solenoid
A/t shift lock control solenoid assembly (in center console)
A12
B12
Class 2 serial data
Computer data lines system
G402 (rear of left rear shock tower)
Hot at all times
Hot in run
Ign 3 fuse 10a
Ign 3 relay
Joint connector
Left rear fuse block (below left rear seat)
R21
R22
R25
Rear integration module (under package shelf trim panel)
Shift lock solenoid control

STARTING/CHARGING

3.2L VIN N

3.2L VIN N, Charging Wiring Diagram for Cadillac CTS V 2004

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List of elements for 3.2L VIN N, Charging Wiring Diagram for Cadillac CTS V 2004:

(3.2l: on engine block, near starter) (3.6l: back of right cylinder head) g102
(right side of engine compt) g105
3.2l
3.6l
3.6l 3.2l
Battery
Battery charge indicator
Class 2
Class 2 serial data
Computer data lines system
Engine control module (ecm) (front of right valve cover)
Fusible link
Gen f term
Gen l term
Generator
Ground distribution system
Instrument panel cluster (ipc)
Logic
Power distribution system
Red
Serial data class 2
Starter

3.2L VIN N, Starting Wiring Diagram for Cadillac CTS V 2004

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List of elements for 3.2L VIN N, Starting Wiring Diagram for Cadillac CTS V 2004:

(3.2l: on engine block, near starter) (3.6l: back of right cylinder head) g102
(on right body rail, near right headlamp) g104
(right side of engine compt) g105
3.2l
3.6l
A/t
Acc
Battery
Charging circuit
Clutch pedal position switch (m/t) (on clutch pedal bracket)
Computer data lines system
Cooling fans system
Cpp switch signal
Crank voltage
Engine control module (ecm) (3.6l (vin 7): fronr of right valve cover)
Ground distribution system
Hot at all times
Hot in run or start
Htr vlv/ cltch fuse 10a
Ign 1 relay
Ignition switch
Lock
M/t
Off
Pnk
R43
R44
R45
R46
R63
R64
R65
R66
Red
Run
S131 (in body harness, 22 cm from a/c pressure switch connector)
Serial data
Splice pack sp200 (in right front of passenger compartment, under dash, above steering column)
Start
Starter
Starter fuse 30a
Starter relay
Starter relay coil ctrl
Starter relay coil voltage
Underhood fuse block (right front of engine compartment)

3.6L VIN 7

3.6L VIN 7, Charging Wiring Diagram for Cadillac CTS V 2004

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List of elements for 3.6L VIN 7, Charging Wiring Diagram for Cadillac CTS V 2004:

(3.2l: on engine block, near starter) (3.6l: back of right cylinder head) g102
(right side of engine compt) g105
3.2l
3.6l
3.6l 3.2l
Battery
Battery charge indicator
Class 2
Class 2 serial data
Computer data lines system
Engine control module (ecm) (front of right valve cover)
Fusible link
Gen f term
Gen l term
Generator
Ground distribution system
Instrument panel cluster (ipc)
Logic
Power distribution system
Red
Serial data class 2
Starter

3.6L VIN 7, Starting Wiring Diagram for Cadillac CTS V 2004

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List of elements for 3.6L VIN 7, Starting Wiring Diagram for Cadillac CTS V 2004:

(3.2l: on engine block, near starter) (3.6l: back of right cylinder head) g102
(on right body rail, near right headlamp) g104
(right side of engine compt) g105
3.2l
3.6l
A/t
Acc
Battery
Charging circuit
Clutch pedal position switch (m/t) (on clutch pedal bracket)
Computer data lines system
Cooling fans system
Cpp switch signal
Crank voltage
Engine control module (ecm) (3.6l (vin 7): fronr of right valve cover)
Ground distribution system
Hot at all times
Hot in run or start
Htr vlv/ cltch fuse 10a
Ign 1 relay
Ignition switch
Lock
M/t
Off
Pnk
R43
R44
R45
R46
R63
R64
R65
R66
Red
Run
S131 (in body harness, 22 cm from a/c pressure switch connector)
Serial data
Splice pack sp200 (in right front of passenger compartment, under dash, above steering column)
Start
Starter
Starter fuse 30a
Starter relay
Starter relay coil ctrl
Starter relay coil voltage
Underhood fuse block (right front of engine compartment)

5.7L VIN P

5.7L VIN P, Charging Wiring Diagram for Cadillac CTS V 2004

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List of elements for 5.7L VIN P, Charging Wiring Diagram for Cadillac CTS V 2004:

(on engine block, near generator)
(on inner fender wall, near battery) g105
Battery
Charge indicator
Class 2
Class 2 serial data
Computer data lines system
Fusible link
G102
Gen duty cycle sig
Gen turn on sig
Generator
Ground distribution system
Ign b+
Instrument panel cluster (ipc)
Logic
Power distribution system
Powertrain control module (pcm)
Serial data class 2
Starter (lower right side of engine)

5.7L VIN P, Starting Wiring Diagram for Cadillac CTS V 2004

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List of elements for 5.7L VIN P, Starting Wiring Diagram for Cadillac CTS V 2004:

(on engine block, near generator) g102
(on inner fender wall, near battery) g105
(on right body rail, near right headlamp) g104
Acc
Battery
Charging circuit
Clutch pedal position switch (on clutch pedal bracket)
Cpp switch signal
Crank voltage
Ground distribution system
Hot at all times
Hot in run or start
Htr vlv/ cltch fuse 10a
Ign 1 relay
Ignition switch
Lock
Off
Pnk
Powertrain control module (pcm)
R43
R44
R45
R46
R63
R64
R65
R66
Run
Splice pack sp200 (in right front of passenger compartment, under dash, above steering column)
Start
Starter
Starter fuse 30a
Starter relay
Starter relay coil ctrl
Starter relay coil voltage
Underhood fuse block (right front of engine compartment)

SUPPLEMENTAL RESTRAINTS

Supplemental Restraints Wiring Diagram (1 of 2) for Cadillac CTS V 2004

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List of elements for Supplemental Restraints Wiring Diagram (1 of 2) for Cadillac CTS V 2004:

(in left front seat belt buckle) driver seat belt switch
(in seat)
(near base of left "b" pillar) driver inflatable restraint side impact sensing module
(near base of right "b" pillar) passenger inflatable restraint side impact sensing module
Airbag fuse 10a
Case ground
Computer data lines system
Driver inflatable restraint roof rail module (above left "b" pillar)
Driver inflatable restraint side impact module (on left side of left front seat)
Driver seat belt pretensioner
G306 (in passenger compartment, under center console)
Ground
High control
Hot in run or crank
Ignition 1 voltage
Inflatable restraint sensing & diagnostic module (sdm) (at center of passenger compartment floor, under console)
Inflatable restraint steering wheel module (on steering wheel)
Inflatable restraint steering wheel module coil
Left seat belt switch
Low control
Low reference
Nca
Passenger inflatable restraint side impact module (on right side of right front seat)
Pnk
Right rear fuse block (below right rear seat)
Sensor signal
Sensor voltage
Serial data
Shorting bar
Shorting clip
Stage 1
Stage 2
Tan

Supplemental Restraints Wiring Diagram (2 of 2) for Cadillac CTS V 2004

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List of elements for Supplemental Restraints Wiring Diagram (2 of 2) for Cadillac CTS V 2004:

Air bag indicator
Class 2
Computer data lines system
Data link connector (dlc) (under left side of dash)
Ign
Inflatable restraint front end discriminating sensor (on upper radiator support)
Inflatable restraint i/p module
Instrument panel cluster
Logic
Message center
Nca
Passenger inflatable restraint roof rail module (above right "b" pillar)
Passenger seat belt pretensioner
Radio
Serial data
Service air bag
Shorting bar
Shorting clip
Splice pack sp200 (right front passenger compartment, under dash, above steering column)
Splice pack sp300 (in passenger compartment, on left frame rail, near left side of driver's seat)
Stage 1
Stage 2
Underhood fuse block (at right front of engine compartment)

TRANSMISSION

3.2L VIN N

3.2L VIN N, A/T Wiring Diagram (1 of 2) for Cadillac CTS V 2004

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List of elements for 3.2L VIN N, A/T Wiring Diagram (1 of 2) for Cadillac CTS V 2004:

1-2 shift sol
1-2 shift sol vlv
2-3 shift sol
2-3 shift sol vlv
4-5 shift sol
4-5 shift sol vlv
A/t iss hi sig
A/t iss lo sig
Acc volt
Anti-lock brakes system
Bas rly ctrl
Battery
Ecm/tcm fuse 10a
G100 (left rear side of eng
G104 (on right body rail, near right headlamp)
Ground
Hot at all times
Hot in run or start
Ign 1 relay
Ign volt
Oss sens high
Oss sens low
Pc sol vlv hi ctrl
Pc sol vlv lo ctrl
Pnk
Pressure control solenoid
R43
R44
R45
R46
Red
Ser data (can) +
Ser data (can) -
Serial data
Sol pwr feed
Tan
Tcc sol valve
Tcc sol vlv ctrl
Tcm/ ipc fuse 15a
Tft sens lo ref
Tft sens sig
Theft fuse 7.5a
Transmission
Transmission control module (tcm) (at right front side of engine compt)
Transmission fluid temperature sensor
Transmission input shaft speed sensor
Transmission output shaft speed sensor
Trs sig a
Trs sig b
Trs sig c
Trs sig p
Under- hood fuse block (right front of eng compt)

3.2L VIN N, A/T Wiring Diagram (2 of 2) for Cadillac CTS V 2004

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List of elements for 3.2L VIN N, A/T Wiring Diagram (2 of 2) for Cadillac CTS V 2004:

(can) +
(can) -
(left rear side of eng)
A11
A12
A13
A14
B12
Dash integration module (under right side of dash, about right closeout/ insulator panel)
Data link connector (dlc) (partial) (under left side of dash)
E10
Elec prndl fuse 10a
Electronic brake control module (at right front corner of eng compt)
Electronic prndl
Engine control module (ecm) (front of right valve cover)
G100
G201 (behind right kick panel)
Hot when mini accessory relay energized
Hvac control module (behind center of dash, below radio)
Inflatable restraint sensing & diagnostic module (under center console)
Instrument panel cluster
P/n
P/n sig
Radio
Rear integration module (under package shelf trim panel)
S114 (in engine harn, 26 cm from starter motor connector)
Ser data
Serial data
Serial data
Service transmission trans hot idle engine
Splice pack sp 200 (under dash, above steering column)
Splice pack sp 300 (in passenger compt, near left side of driver seat)
Splice pack sp 303 (in passenger compt, near right rear fuse block)
Transmission
Transmission internal mode switch
Trs sig a
Trs sig b
Trs sig c
Trs sig p
Under- hood fuse block (right front of eng compt)

3.2L VIN N, M/T Wiring Diagram for Cadillac CTS V 2004

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List of elements for 3.2L VIN N, M/T Wiring Diagram for Cadillac CTS V 2004:

(in eng harn, 45 cm from underhood fuse block)
(under dash, above steering column) sp200
Backup lamp switch
Ccp switch
Class 2 data
Clutch pedal position switch (on clutch pedal bracket)
Computer data lines system
Engine control module (ecm) (front of right valve cover)
Engine controls system
G100 (left rear side of eng)
G104 (on right body rail, near right headlamp)
Hot at all times
Hot in run or start
Htr/vlv clutch fuse 10a
Ign 1 relay
Main relay
Pnk
R43
R44
R45
R46
R48
R49
R63
R64
R65
R66
Rear integration module (rim) (under package shelf trim panel)
Rev sw sig
S132
Start rly ctrl
Start rly volt
Starter fuse 30a
Starter relay
Starting/ charging system
Tos fuse 10a
Under- hood fuse block (right front of eng compt)
Vehicle speed sensor (on right rear of transmission)
Vss sig

3.6L VIN 7

3.6L VIN 7, A/T Wiring Diagram (1 of 2) for Cadillac CTS V 2004

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List of elements for 3.6L VIN 7, A/T Wiring Diagram (1 of 2) for Cadillac CTS V 2004:

(partial) (under left side of dash)
1-2 shift sol
1-2 shift sol vlv
2-3 shift sol
2-3 shift sol vlv
4-5 shift sol
4-5 shift sol vlv
A/t iss hi sig
A/t iss lo sig
Acc volt
Anti-lock brakes system
Bas rly ctrl
Battery
Data link connector
Ecm/tcm fuse 10a
G104 (on right body rail, near right headlamp)
G132 (front of right cylinder head)
Ground
Hi spd gmlan +
Hi spd gmlan 2
Hot at all times
Hot in run or start
Ign 1 relay
Ign volt
Oss sens high
Oss sens low
Pc sol vlv hi ctrl
Pc sol vlv lo ctrl
Pnk
Pressure control solenoid
R43
R44
R45
R46
Red
Ser data (can) +
Ser data (can) -
Sol pwr feed
Tan
Tcc sol valve
Tcc sol vlv ctrl
Tcm/ ipc fuse 15a
Tft sens lo ref
Tft sens sig
Theft fuse 7.5a
Transmission
Transmission control module (tcm) (at right front side of engine compt)
Transmission fluid temperature sensor
Transmission input shaft speed sensor
Transmission output shaft speed sensor
Trs sig a
Trs sig b
Trs sig c
Trs sig p
Under- hood fuse block (right front of eng compt)

3.6L VIN 7, A/T Wiring Diagram (2 of 2) for Cadillac CTS V 2004

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List of elements for 3.6L VIN 7, A/T Wiring Diagram (2 of 2) for Cadillac CTS V 2004:

(front of right cylinder head)
A11
A12
A13
A14
B12
Dash integration module (under right side of dash, about right closeout/ insulator panel)
E10
Elec prndl fuse 10a
Electronic brake control module (at right front corner of eng compt)
Electronic prndl
Engine control module (ecm) (front of right valve cover)
G132
G201 (behind right kick panel)
Hi spd gmlan +
Hi spd gmlan -
Hot when mini accessory relay energized
Hvac control module (behind center of dash, below radio)
Inflatable restraint sensing & diagnostic module (under center console)
Instrument panel cluster
P/n
P/n sig
Radio
Rear integration module (under package shelf trim panel)
S154 (in eng harn, 18 cm from tcm connector)
Serial data
Serial data
Service transmission trans hot idle engine
Splice pack sp 200 (under dash, above steering column)
Splice pack sp 300 (in passenger compt, near left side of driver seat)
Splice pack sp 303 (in passenger compt, near right rear fuse block)
Transmission
Transmission internal mode switch
Trs sig a
Trs sig b
Trs sig c
Trs sig p
Under- hood fuse block (right front of eng compt)

5.7L VIN P

5.7L VIN P, M/T Wiring Diagram for Cadillac CTS V 2004

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List of elements for 5.7L VIN P, M/T Wiring Diagram for Cadillac CTS V 2004:

+5v ref
5v ref
Ccp switch
Clutch pedal position switch (on clutch pedal bracket)
G104 (on right body rail, near right head lamp)
Heated oxygen sensors
Hot at all times
Hot in run or start
Htr/vlv clutch fuse 10a
Ign 1 relay
Instrument cluster
Low ref
Main relay
Main rly ctrl
Pnk
Powertrain control module (ecm) (behind right front fender)
Pre o2/ cam fuse 15a
R43
R44
R45
R46
R47
R48
R49
R50
R63
R64
R65
R66
Reverse lockout sol
Reverse lockout solenoid (left rear of transmission)
S170 (in eng harn, 15.5 cm from c101)
Skip shift ind
Skip shift ind ctrl
Skip shift sol ctrl
Skip shift solenoid (left side of transmission)
Splice pack sp200 (in right front of passenger compt, under dash, above steering column)
Start rly coil volt
Start rly ctrl
Starte rly coil ctrl
Starter fuse 30a
Starter relay
Starting/ charging system
Tan
Throttle actuator control module (attached to pcm below battery)
Throttle position sensor (on right side of throttle body)
Tps no1 sig
Tps no2 sig
Transmission fluid temperature sensor (in transmission)
Uart ser data
Under- hood fuse block (right front of eng compt)
Vehicle speed sensor (vss) (on left rear of transmission)
Vss sig hi
Vss sig lo

TRUNK, TAILGATE, FUEL DOOR

Trunk Release Wiring Diagram for Cadillac CTS V 2004

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List of elements for Trunk Release Wiring Diagram for Cadillac CTS V 2004:

(in left front door trim harness, 14.5 cm from ddsa) s502
(not used)
(rear of left rear shock tower) g402
A12
Computer data lines system
Door locks system
Driver door module (on left door, under door trim)
Driver door switch assembly (ddsa)
Gnd
Ground
Hot at all times
Interior lights system
Joint connector
Left rear fuse block (below left rear seat)
R31
R32
R33
R35
Rear compartment lid ajar switch signal
Rear compartment lid release actuator (center of rear compartment lid)
Rear compartment lid release switch
Rear integration module (under package shelf trim panel)
Relay ctrl
Release switch
Right rear fuse block (below right rear seat)
S20
S21
S23
Serial data
Switch signal
Tan
Trk dr rel sol relay micro
Trunk diode
Trunk door release fuse 10a

WARNING SYSTEMS

Warning Systems Wiring Diagram for Cadillac CTS V 2004

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List of elements for Warning Systems Wiring Diagram for Cadillac CTS V 2004:

(behind the left kick panel) g200
A11
A12
Audio amplifier (left side of trunk)
Auto
B10
B11
Base
Battery
Check tire pressure, service monitor
Class 2 (dim)
Class 2 (sdm)
Class 2 serial data
Computer data lines system
Dash integration module (under right side of dash, above right closeout/insulator panel)
Dim/aldl fuse 10a
Door ajar signal
Door ajar sw signal
Door open signal
Driver door latch assembly
Driver door module (on left door, under door trim)
Driver seat belt switch
Driver sig
Fasten safety belt indicator
G200 (behind the left kick panel)
Gnd
Ground
Head
Headlamps on sig
Hot at all times
Ignition key alarm switch (on steering column)
Inflatable restraint sensing & diagnostic module (under center console)
Instrument panel cluster (ipc)
Key in ign sw sig
Keyless entry/ tire pressure antenna signal
Lf door sw sig
Lights on indicator
Logic
Low ref
Low tire pressure indicator
Luxury
Message center
Nca
Off
Park
Park lamp on sw sig
Pnk
Radio
Radio antenna module (above headliner, near rear window)
Rfa rear window antenna
S200
S201
S205
Serial data
Tan
Turn signal/multi-function switch
Underhood fuse block (right front of engine compt)
Volt check fuse 10a

WIPER/WASHER

Wiper/Washer Wiring Diagram for Cadillac CTS V 2004

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List of elements for Wiper/Washer Wiring Diagram for Cadillac CTS V 2004:

(near left front strut tower) g101
Accy voltage
Dash integration module (under right side of dash, above right closeout/insulator panel)
Delay
G101 (near left front strut tower)
G104 (on right body rail, near right headlamp)
Ground
Hdlp wash circuit breaker 30a
Hdlp wash relay
Headlamp washer fluid pump
Headlamp washer gnd
Hot at all times
Hot in run or start
Hot w/ accessory relay energized
Ign 1 relay
Int
Left heated washer nozzle
Lo d5
Logic
Mist
Nca
Off
Off d1
Pnk
R43
R44
R45
R46
R67
R68
R69
R70
R71
Right heated washer nozzle
S204 (w/ headlamp washer) (in the i/p harness, 37 cm from c103)
Sp200 (in right front of passenger compartment, under dash, above steering column)
Tan
Underhood fuse block (right front of engine compartment)
Underhood fuse block (right front of engine compt)
Wash
Wash noz fuse 10a
Washer fluid level signal
Washer pump ctrl
Washer switch signal
Windshield washer fluid level switch (at base of washer fluid reservoir)
Windshield washer fluid pump (at base of washer fluid reservoir)
Windshield wiper/ washer module (at left rear of engine compartment, near windshield)
Windshield wiper/washer switch
Wiper mtr high speed
Wiper sw on signal
Wiper sw signal 1
Wiper sw signal 2
Wiper switch
Wpr mod fuse 30a
Wpr sw fuse 10a