All Wiring Diagrams for Chevrolet Chevy Express H2005 1500

AIR CONDITIONING

Compressor Wiring Diagram for Chevrolet Chevy Express H2005 1500

List of elements for Compressor Wiring Diagram for Chevrolet Chevy Express H2005 1500:

2006: diesel
A/c compressor clutch
A/c fuse 32 10a
A/c high pressure switch (rear of a/c compressor)
A/c low pressure switch (on side of accumulator)
A/c relay 54
Bi-lev
Body fuse block (below left front seat)
Clutch rly ctrl
D12
Def
F12
G102 (on left rear of engine)
Gasoline
Heat
Heat/def
Hot at all times
Hot in run
Hot in run or start
Hvac control assembly
Hvac fuse 10 20a
Ign e fuse 22 10a
Low press sig
Max
Norm
Off
Powertrain control module (pcm) (on left front inner fender) (gasoline) engine control module (ecm) (left side of engine compt) (2006: diesel)
Request sig
Underhood fuse block (on left side of engine compt)
Vent

Heater Wiring Diagram for Chevrolet Chevy Express H2005 1500

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List of elements for Heater Wiring Diagram for Chevrolet Chevy Express H2005 1500:

(bottom of left "b" pillar) g347
(left rear of passenger
(rear a/c harn, 24 cm from rear blower motor resistor breakout)
(rear hvac harn, 13 cm from auxiliary blower motor connector breakout)
(rear hvac harn, 20 cm from auxiliary blower motor connector breakout)
Air temperature actuator (behind right side of dash)
Auxiliary blower motor (if equipped (left rear of passenger
Auxiliary blower motor resistor (if equipped) (left rear of passenger
Auxiliary blower motor switch (if equipped)
Auxiliary high speed blower motor relay (if equipped) (left rear of passenger
Auxiliary low speed blower motor relay (if equipped)
Auxiliary medium speed blower motor relay (if equipped) (left rear of passenger
Bi-lev
Blow fuse 51 40a
Blower motor (right rear of engine compt)
Blower motor resistor assembly (right rear of engine compt)
Body fuse block (below left front seat)
Compt, on auxiliary hvac assembly)
Def
F10
G102 (on left rear of engine)
G304 (behind right kick panel)
G401 (top of right "d" pillar)
Heat
Heat/def
Hot at all times
Hot in run
Hvac 1 fuse 9 10a
Hvac control assembly
Hvac fuse 20a
Interior lights system
Med
Off
Rr blower fuse 13 30a
S102 (4.3l vin x: engine harn, 6 cm from generator connector breakout) (except 4.3l vin x: engine harn, 8 cm from knock sensor breakout)
S249 (dash harn, 5 cm from inflatable restraint dash module connector breakout)
S401 (body harn, 16 cm from chmsl connector breakout)
S405
S412
S413
Splice pack sp347
Tan
Underhood fuse block (left side of engine compt)
Vent

Manual A/C Wiring Diagram, Cargo Van (1 of 2) for Chevrolet Chevy Express H2005 1500

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List of elements for Manual A/C Wiring Diagram, Cargo Van (1 of 2) for Chevrolet Chevy Express H2005 1500:

(4.3l vin x: engine harn, 6 cm from generator connector breakout) (except 4.3l vin x: engine harn, 8 cm from knock sensor breakout)
(behind right
(behind right kick panel) g304
A/c high pressure switch
Auxiliary air temperature actuator (left rear of passenger compt)
Auxiliary mode actuator (left rear of passenger compt)
Battery
Bi-lev
Blow fuse 51 40a
Blower motor (right rear of engine compt)
Blower motor resistor assembly (right rear of engine compt)
Body fuse block (below left front seat)
C2 a
C2 c
Def
Defogger system
F10
Front auxiliary hvac control assembly (if equipped)
G102 (on left rear of engine)
G347 (bottom of left "b" pillar)
G401 (top of right "d" pillar)
Ground
Heat
Heat/def
Hot at all times
Hot in run
Hvac 1 fuse 9 10a
Hvac control assembly
Hvac fuse 20a
Ing 3
Interior lights system
Logic
Max
Med
Norm
Off
R defog ind
Reading lamp connector breakout)
Rr blower fuse 13 30a
S102
S249 (dash harn, 5 cm from inflatable restraint dash module connector breakout)
S411 (rear hvac harn, 6 cm from auxiliary blower motor connector breakout)
Side of dash) air temperature actuator
Tan
Underhood fuse block (left side of engine compt)
Vent

Manual A/C Wiring Diagram, Cargo Van (2 of 2) for Chevrolet Chevy Express H2005 1500

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List of elements for Manual A/C Wiring Diagram, Cargo Van (2 of 2) for Chevrolet Chevy Express H2005 1500:

(4.3l vin x: engine harn, 6 cm from generator connector breakout) (except 4.3l vin x: engine harn, 8 cm from knock sensor breakout)
(left rear of passenger
(on left rear of engine)
(provisional)
(rear hvac harn, 13 cm from auxiliary blower motor connector breakout)
(top of right "d" pillar) g401
(w/ rv upfitter
(w/ rv upfitter option:
(w/ rv upfitter option: body harn, 22 cm from c308 breakout) (w/o rv upfitter option: body harn, 41 cm from c304 breakout)
A/c compressor clutch
A/c fuse 32 10a
A/c low pressure switch (on side of accumulator)
A/c relay 54
Auxiliary blower motor (if equipped) (left rear of passenger
Auxiliary blower motor resistor (if equipped) (left rear of passenger
Auxiliary high speed blower motor relay (if equipped) (left rear of passenger
Auxiliary low speed blower motor relay (if equipped)
Auxiliary medium speed blower motor relay (if equipped) (left rear of passenger
Body harn, 22 cm from c308 breakout) (w/o rv upfitter option: body harn, 5 cm from c304 breakout)
C319
Clutch rly ctrl c2
Compt, on auxiliary hvac assembly)
D12
F12
G102
Hot at all times
Hot in run or start
Ign e fuse 22 10a
Low press sig
Option: body harn, 32 cm from c308 breakout) (w/o rv upfitter option: body harn, 31 cm from c304 breakout)
Powertrain control module (pcm) (on left front inner fender)
Request sig
S102
S308
S310
S311
S405
S411 (rear hvac harn, 6 cm from auxiliary blower motor connetcor breakout)
S412 (rear hvac harn, 20 cm from auxiliary blower motor connector breakout)
S413 (rear a/c harn, 24 cm from aux blower motor breakout)
Underhood fuse block (left side of engine compt)

Manual A/C Wiring Diagram, Passenger Van (1 of 2) for Chevrolet Chevy Express H2005 1500

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List of elements for Manual A/C Wiring Diagram, Passenger Van (1 of 2) for Chevrolet Chevy Express H2005 1500:

(4.3l vin x: engine harn, 6 cm from generator connector breakout) (except 4.3l vin x: engine harn, 8 cm from knock sensor breakout)
(behind right
(behind right kick panel) g304
(rear head- liner harn 30 cm from c420)
(w/ rv upfitter option:
(w/ rv upfitter option: in upfitter hvac control harn, 19 cm from c303 breakout) (w/o rv upfitter option: in front headliner harn, 42 cm from c304 breakout)
(w/ rv upfitter option: in upfitter hvac control harn, 64 cm from c303 breakout) (w/o rv upfitter option: in front headliner harn, 11 cm from c304 breakout)
(w/ rv upfitter option: in upfitter hvac control harn, 88 cm from c303 breakout) (w/o rv upfitter option: in front headliner harn, 52 cm from c304 breakout)
A/c high pressure switch
Auxiliary hvac control processor (behind auxiliary hvac assembly, in headliner)
Battery
Bi-lev
Blow fuse 51 40a
Blower motor (right rear of engine compt)
Blower motor resistor assembly (right rear of engine compt)
Body fuse block (below left front seat)
Breakout)
C1 g
C2 a
C2 c
Def
Defogger system
Except rv
F10
Front auxiliary hvac control assembly
G102 (on left rear of engine)
G347 (bottom of left "b" pillar)
Ground
Heat
Heat/def
Hot at all times
Hot in run
Hvac 1 fuse 9 10a
Hvac control assembly
Hvac fuse 20a
In upfitter hvac control harn, 39 cm from c303 breakout) (w/o rv upfitter option: in front headliner harn, 31 cm from c304 breakout)
Ing 3
Interior lights system
Logic
Max
Med
Norm
Off
R defog ind
Rear
Rear auxiliary hvac control assembly
Rr blower fuse 13 30a
S102
S249 (dash harn, 5 cm from inflatable restraint dash module connector breakout)
S305
S306
S307
S314
S330
S354
Side of dash) air temperature actuator
Tan
Tan e
Underhood fuse block (left side of engine compt)
Vent

Manual A/C Wiring Diagram, Passenger Van (2 of 2) for Chevrolet Chevy Express H2005 1500

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List of elements for Manual A/C Wiring Diagram, Passenger Van (2 of 2) for Chevrolet Chevy Express H2005 1500:

(4.3l vin x: engine harn, 6 cm from generator connector breakout) (except 4.3l vin x: engine harn, 8 cm from knock sensor breakout)
(on left rear of engine)
(provisional)
(rear hvac harn, 13 cm from auxiliary blower motor connector breakout) s405
(w/ rv upfitter
(w/ rv upfitter option:
(w/ rv upfitter option: body harn, 22 cm from c308 breakout) (w/o rv upfitter option: body harn, 41 cm from c304 breakout)
A/c compressor clutch
A/c fuse 32 10a
A/c low pressure switch (on side of accumulator)
A/c relay 54
Auxiliary air temperature actuator (left rear of passenger compt)
Auxiliary blower motor (left rear of passenger compt, on auxiliary
Auxiliary blower motor resistor (left rear of passenger
Auxiliary high speed blower motor relay (left rear of passenger
Auxiliary low speed blower motor relay (left rear of passenger
Auxiliary medium speed blower motor relay (left rear of passenger
Auxiliary mode actuator (left rear of passenger compt)
Body harn, 22 cm from c308 breakout) (w/o rv upfitter option: body harn, 5 cm from c304 breakout)
C319
Clutch rly ctrl c2
Compt, on auxiliary hvac assembly)
D12
F12
G102
G401 (top of right "d" pillar)
Hot at all times
Hot in run or start
Hvac assembly)
Ign e fuse 22 10a
Low press sig
Option: body harn, 32 cm from c308 breakout) (w/o rv upfitter option: body harn, 31 cm from c304 breakout)
Powertrain control module (pcm) (on left front inner fender)
Request sig
S102
S308
S310
S311
S411 (rear hvac harn, 6 cm from auxiliary blower motor connector breakout)
S412 (rear hvac harn, 20 cm from auxiliary blower motor connector breakout)
S413 (rear a/c harn, 24 cm from auxiliary blower motor breakout)
Underhood fuse block (left side of engine compt)

ANTI-LOCK BRAKES

Anti-lock Brakes Wiring Diagram, with Vehicle Speed Enhancement Stability (1 of 2) for Chevrolet Chevy Express H2005 1500

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List of elements for Anti-lock Brakes Wiring Diagram, with Vehicle Speed Enhancement Stability (1 of 2) for Chevrolet Chevy Express H2005 1500:

(on left frame rail, near center of vehicle)
5v ref
Abs fuse 48 60a
Abs/tcc switch
Abs/tcs class 2 serial data
Auxiliary 1 fuse 32 10a
Battery (+)
Body fuse block (under left front seat)
Brake fluid level sw sig
Brake in
Brks fuse 11 10a
C12
C7 a
Control module (ebcm)
Del torque
Delivered torque signal
E12
Electronic brake
G300 (on left frame rail)
Gnd
Hot at all times
Hot in run
Hot in run or start
Ign e fuse 22 10a
Ignition 3 volt
Lateral accelerometer sig
Left front wheel speed sensor
Left rear wheel speed sensor
Lf wss sig
Lf wss sig lo ref
Lr wss sig
Lr wss sig lo ref
Nca
Pnk
Power distribution system
Powertrain control module (pcm) (on left front of eng compt)
Precharge motor hi
Precharge motor lo
Precharge pump (left front of frame rail)
Red
Req torque
Request torque signal
Rf wss sig lo ref
Right front wheel speed sensor
Right rear wheel speed sensor
Rr wss sig
Rr wss sig lo ref
S315
Self test sig circuit
Steering wheel pos sig a
Steering wheel pos sig b
Stop lamp switch (above brake pedal)
Tan
Tcc brake sw/cruise ctrl sig
Traction ctrl pref sw sig
Underhood fuse block (left side of engine compt)
Vehicle speed sensor (vss) (right rear of transmission)
Vehicle speed sig
Vses motor
Vss high
Vss low
Vss output
Wheel pos marker pulse sig
Wheel pos sens low ref
Wheel pos sens sig 1
Yaw rate frequency
Yaw rate sensor 5v ref
Yaw rate sensor lo ref
Yaw rate sensor sig

Anti-lock Brakes Wiring Diagram, with Vehicle Speed Enhancement Stability (2 of 2) for Chevrolet Chevy Express H2005 1500

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List of elements for Anti-lock Brakes Wiring Diagram, with Vehicle Speed Enhancement Stability (2 of 2) for Chevrolet Chevy Express H2005 1500:

(10 cm from underhood pass- through grommet breakout) sp200
5v ref
Abs ind
Brake fluid level switch (on brake master cylinder reservoir)
Brake ind
Brake pressure differential switch (on brake valve, near front of ebcm)
Caution ind
Data link connector (dlc) (under left side of dash)
G102 (on left rear of engine)
G303 (behind left kick panel)
G304 (behind right kick panel)
G400 (on inner left rear frame rail)
Ground
Heavy duty
Hot in run or start
Ign 3 voltage
Instrument panel cluster
Light duty
Logic
Low ref
Not ready ind
Pcm ign 1 fuse 38 15a
Pnk
S102
S248
S249
S402
Sensor self test sig cir
Steering wheel pos marker pulse sig
Steering wheel position sens sig 1
Steering wheel position sig a
Steering wheel position sig b
Steering wheel speed/ position sensor (near base of steering column)
Traction control switch
Underhood fuse block (left side of engine compt)
Yaw & lateral acceleration sensor (under right front seat)
Yaw rate frequency

Anti-lock Brakes Wiring Diagram, without Vehicle Speed Enhancement Stability for Chevrolet Chevy Express H2005 1500

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List of elements for Anti-lock Brakes Wiring Diagram, without Vehicle Speed Enhancement Stability for Chevrolet Chevy Express H2005 1500:

(heavy duty)
(light duty)
(light duty) (heavy duty)
A10
Abs fuse 48 60a
Abs pump
Abs/tcc sw
Anti-lock ind
B10
Body fuse block (below left front seat)
Brake fluid level sw in
Brake fluid level switch (heavy duty) (on brake master cylinder reservoir)
Brake ind
Brake input
Brake pressure differential switch (light duty) (on brake valve, near front of ebcm)
Brks fuse 11 10a
C1 d4
C12
C2 e12
C7 a
Cruise control system
Data link connector (dlc) (under left side of dash)
Electronic brake control module (ebcm) (on left frame rail, near center of vehicle)
G102 (left rear of engine)
G300 (on left frame rail, near ebcm)
G400 (inner left rear frame rail)
Hot at all times
Hot in run
Hot in run or start
Ign e fuse 22 10a
Ignition
Instrument panel cluster
Left front sensor (+)
Left front sensor (-)
Left front wheel speed sensor
Logic
Nca
Pnk
Powertrain control module (pcm) (in eng comp, on left inner fender)
Right front sensor (+)
Right front sensor (-)
Right front wheel speed sensor
S402 s102
Serial data
Sp200 (in dash wiring harn, 10 cm from underhood pass-through grommet breakout)
Stop lamp switch (behind left side of dash, above brake pedal)
Tan
Tcc brake sw
Underhood fuse block (on left side of eng compt)
Vehicle speed sensor (vss) (4l80-e: on left side of transmission, 4l60-e: on right side of transmission)
Vss high
Vss input
Vss low
Vss output

ANTI-THEFT

Anti-theft Wiring Diagram for Chevrolet Chevy Express H2005 1500

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List of elements for Anti-theft Wiring Diagram for Chevrolet Chevy Express H2005 1500:

(dash harn, 10 cm from underhood pass-through grommet) splice pack sp200
12v
12v ref
A11
A12
Acc volt
B12
B9 serial data c2
Body control module (behind lower right side of dash)
Data link connector (under left side of dash)
Electronic brake control module (on left frame rail, near center of vehicle)
G303 (behind left kick panel)
Ground
Hot at all times
Hot in run or acc
Hot in run or start
Hot in run, acc or start
Ign 0 volt
Ign 1 volt
Instrument panel cluster
Passlk sens
Passlock sensor (inside top of steering column)
Passlock signal
Pnk
Powertrain control module (engine compt, on left inner fender)
Security indicator
Sens ret
Sensor return
Serial data
Serial data c1
Tan
Tbc acc fuse 46 10a
Tbc fuse 19 10a
Tbc ign 0 fuse 6 10a
Tbc ign 1 fuse 24 10a
Underhood fuse block (left side of engine compt)

BODY CONTROL MODULES

Body Control Modules Wiring Diagram (1 of 2) for Chevrolet Chevy Express H2005 1500

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List of elements for Body Control Modules Wiring Diagram (1 of 2) for Chevrolet Chevy Express H2005 1500:

(not used)
12 volt ref
5volt ref
A10
A11
A12
Anti-theft system
B10
B11
B12
Backlight lamps ctrl
Battery +
Body control module (behind lower right side of dash)
Cargo door unlock rly ctrl
Class 2 serial data
Computer data lines system
Dimming input
Door locks system
Driver unlock rly ctrl
Drl low ctrl
Drl on/off sw sig
Exterior lights system
G302 (behind left kick panel)
G303 (behind left kick panel)
Ground
Hazard sw sig
Headlamp dimmer sw sig
Headlamp high beam relay ctrl
Headlamp low beam relay ctrl
Headlights system
Horn rly ctrl
Horns system
Hot at all times
I/p lamp dimming ctrl
Interior lamp defeat sw sig
Interior lights system
Led dimming sig
Park lamp relay ctrl
Park lamp sw on sig
Passenger door lock rly ctrl
Passenger door sw unlock rly ctrl
Pnk
Power distribution system
Rap relay coil ctrl
S247
S248
Security syst sens low ref
Security system sens sig
Tan
Tbc 3 fuse 16 15a
Tbc 4 fuse 11 15a
Tbc fuse 19 15a
Tow/haul sw sig
Tow/haul switch
Underhood fuse block

Body Control Modules Wiring Diagram (2 of 2) for Chevrolet Chevy Express H2005 1500

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List of elements for Body Control Modules Wiring Diagram (2 of 2) for Chevrolet Chevy Express H2005 1500:

(w/ commercial tradesman package)
A11
Access panel lf rly ctrl
Access panel lr rly ctrl
Access panel right side rly ctrl
Accessory volt
B11
B12
Battery +
Body control module (behind lower right side of dash)
Courtesy lamp high ctrl
Courtesy lamps on sig
Dimmer return
Dome fluorescent work lamp rly ctrl
Dome fluorescent work lamp sig
Door lock ctrl
Door locks system
Door open sw sig
Door unlock ctrl
Exc recreational vehicle
Exterior lights system
Headlamp sw flash to pass sig
Headlamp sw headlamp on sig
Headlights system
Hot at all times
Hot in acc & run
Hot in acc run & start
Hot in run & start
Ign 0 fuse 6 10a
Ignition 0 volt
Ignition 1 volt
Interior lights system
Key in ignition sw sig
Lf door open sw sig
Park brake sw sig
Park brake switch (under left side of dash)
Pnk
Recreational vehicle
Tan
Tbc 2 fuse 18 15a
Tbc acc fuse 46 10a
Tbc ign1 fuse 24 10a
Trunk, tailgate, fuel doors system
Underhood fuse block
Warnings system

COMPUTER DATA LINES

Computer Data Lines Wiring Diagram for Chevrolet Chevy Express H2005 1500

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List of elements for Computer Data Lines Wiring Diagram for Chevrolet Chevy Express H2005 1500:

B12
Body control module (bcm) (behind lower right side of dash)
Chime module (behind center of dash)
Cigar fuse 30 15a
Data clss 2
Data link connector (dlc) (under left side of dash)
Electronic brake control module (ebcm) (on left frame rail, near center of vehicle)
G303 (behind left kick panel)
Hot at all times
Inflatable restraint sensing & diagnostic module (sdm) (under left front seat)
Instrument panel cluster
Pnk
Power distribution system
Powertrain control module (pcm) (in engine compt, on left inner fender)
Radio
Remote control door lock receiver (behind center of dash)
S248
Splice pack sp200 (in dash wiring harn, 10 cm from underhood pass- through grommet breakout)
Underhood fuse block (left side of engine compt)
Vehicle communications interface module (vcim) (below steering column)
W/ active handling
W/ radio
W/o active handling
W/o radio

CRUISE CONTROL

Cruise Control Wiring Diagram, with Active Handling for Chevrolet Chevy Express H2005 1500

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List of elements for Cruise Control Wiring Diagram, with Active Handling for Chevrolet Chevy Express H2005 1500:

Body fuse block (below left front seat)
Class 2
Class 2 (pcm)
Computer data lines system
Cruise control on/off switch
Cruise ind
Cruise on input
Data
E12
Exterior lights system
F10
G102 (behind left kick panel)
Ground
Hot at all times
Hot in run & start
Ign
Ign e fuse 22 10a
Ignition
Instrument
Nca
Off
Panel cluster
Pcm ign 1 fuse 38 15a
Pnk
Powertrain control module (pcm) (in engine compt, on left inner fender)
Resume/ accel
Resume/accel
Resume/accel sig
S247
Serial data
Set/ coast
Set/coast sig
Stop lp fuse 7 15a
Stop/ chmsl fuse 8 10a
Stoplamp sw input
Stoplamp switch (above brake pedal)
Throttle actuator control (tac) module (at left rear of engine compartment)
Turn signal multifunction switch
Uart serial data
Underhood fuse block (left side of engine compt)
Vehicle speed sensor (vss) (on right side of transmission)
Vss high
Vss low

Cruise Control Wiring Diagram, without Active Handling for Chevrolet Chevy Express H2005 1500

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List of elements for Cruise Control Wiring Diagram, without Active Handling for Chevrolet Chevy Express H2005 1500:

17 (or 1320)
Auto cruise
Body fuse block (below left front seat)
C12
Cargo/ passenger
Class 2
Class 2 (pcm)
Computer data lines system
Cruise control module (near brake fluid reservoir)
Cruise control on/off switch
Cruise ind
Cruise on input
Cutaway
Data
E12
Exterior lights system
F10
G302 (behind left kick panel)
Ground
Hot at all times
Hot in run & start
Ign
Ign e fuse 22 10a
Ignition
Inhibit sig
Instrument
Nca
Off
Panel cluster
Pcm ign 1 fuse 38 15a
Pnk
Powertrain control module (pcm) (in engine compt, on left inner fender)
Resume/ accel
Resume/accel
Resume/accel sig
S231
S247
Serial data
Set/ coast
Set/coast sig
Speed sensor input
Speed signal
Stop lp fuse 7 15a
Stop/ chmsl fuse 8 10a
Stoplamp sw input
Stoplamp switch (above brake pedal)
Turn signal multifunction switch
Underhood fuse block (left side of engine compt)
Vcm signal
Vehicle speed sensor (vss) (on right side of transmission)
Vss high
Vss low

DEFOGGERS

Defoggers Wiring Diagram for Chevrolet Chevy Express H2005 1500

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List of elements for Defoggers Wiring Diagram for Chevrolet Chevy Express H2005 1500:

B12 c1
Body fuse block (under left front seat)
Driver outside rearview mirror
G302 (behind left kick panel)
G304 (behind right kick panel)
G347 (bottom of left "b" pillar)
G401 (on top of right "d" pillar)
G402 (on top of left "d" pillar)
Ground
Hot at all times
Hot in run
Htd mir defog fuse 12 30a
Hvac 1 fuse 9 10a
Hvac control assembly
Ign 3 voltage
Left rear window defog grid
Logic
Nca
Passenger outside rear- view mirror
Rear window defog switch (de-energize after time delay)
Right rear window defog grid
Rr def/ htd mir fuse 8 20a
Rr defog relay 25
Rr defog rly pwr
S401
S500
S600
S902
Splice pack sp347
Under- hood fuse block (left side of engine compt)

ENGINE PERFORMANCE

4.3L VIN X

4.3L VIN X, Engine Performance Wiring Diagram (1 of 5) for Chevrolet Chevy Express H2005 1500

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List of elements for 4.3L VIN X, Engine Performance Wiring Diagram (1 of 5) for Chevrolet Chevy Express H2005 1500:

(lower front of engine near crankshaft) crankshaft position (ckp) sensor
(under left side of dash) data link connector
+5v
12 ref
3-2 ss ctrl
A10
Brk sw sig
C10
Central sequential fuel injection (at top of engine)
Ckp 1 sig
Cls 2 data
Cmp sig
D10
E10
Ect sig
Eng 1 fuse 23 15a
Eng 2 fuse 21 10a
G103 (right rear of engine)
Gnd
Ho2s hi sig
Ho2s lo
Hot at all times
Hot in accy, run & start
Hot in run & start
Ign
Ign 0 fuse 6 10a
Inj 1 ctrl
Inj 2 ctrl
Inj 3 ctrl
Inj 4 ctrl
Inj 5 ctrl
Inj 6 ctrl
Ks 1 signal
O2a fuse 15a
O2b fuse 15a
Pcm batt fuse 2 20a
Pnk
Powertrain control module (in engine compt, on left inner fender)
Prnd a sig
Prnd b sig
Prnd p sig
Range b
Range c
Ref low
Rly ctrl
S101
Sp200 (in dash wiring harn, 10cm from underhood pass- through grommet breakout)
Starting/ charging system
Tan
Under- hood fuse block

4.3L VIN X, Engine Performance Wiring Diagram (2 of 5) for Chevrolet Chevy Express H2005 1500

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List of elements for 4.3L VIN X, Engine Performance Wiring Diagram (2 of 5) for Chevrolet Chevy Express H2005 1500:

(cargo/passenger: in chassis harn, 44 cm from ebcm connector breakout) s301
(cutaway: in chassis harn, 87 cm from ebcm connector breakout)
(not used)
Cargo/ passenger
Cutaway
Engine coolant temperature sensor (on left side of engine)
Fuel pump & sender assembly (in fuel tank)
Fuel pump fuse 12 20a
Fuel pump relay
G102 (left rear of engine)
G400 (on inner left rear frame rail)
Heated oxygen sensor (bank 1 sensor 1) (in exh pipe, front of cat converter)
Heated oxygen sensor (bank 1 sensor 2) (in exh pipe, rear of cat converter)
Heated oxygen sensor (bank 2 sensor 1) (in exh pipe, front of cat converter)
Heated oxygen sensor (bank 2 sensor 2) (in exh pipe, rear of cat converter)
Hot at all times
Knock sensor (on top left rear of (engine)
Nca
Park/neutral position switch (left side of transmission)
Pnk
S102
Tan
Throttle position sensor (on left side of throttle body)
Under- hood fuse block

4.3L VIN X, Engine Performance Wiring Diagram (3 of 5) for Chevrolet Chevy Express H2005 1500

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List of elements for 4.3L VIN X, Engine Performance Wiring Diagram (3 of 5) for Chevrolet Chevy Express H2005 1500:

1-2 sol
2-3 sol
3-2 sol
A red
A/t fluid pressure manual valve position switch
Automatic transmission
C12
Camshaft position sensor (part of distributor, top rear of engine)
Engine oil pressure (eop) sensor (top rear of engine)
Evaporative emission (evap) canister purge solenoid (on top of engine, near throttle body)
Fuel tank pressure sensor (in fuel tank)
Hot in run & start
Ign e fuse 22 10a
M tan
Manifold absolute pressure sensor (on top right side of engine)
N pnk
Pc sol valve
Pnk
Pnk a
Red
Rev
Stop- lamp switch (above brake pedal)
Tan
Tcc pwm sol
Tcc sol
Tft sensor
Underhood fuse block

4.3L VIN X, Engine Performance Wiring Diagram (4 of 5) for Chevrolet Chevy Express H2005 1500

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List of elements for 4.3L VIN X, Engine Performance Wiring Diagram (4 of 5) for Chevrolet Chevy Express H2005 1500:

Can vent fuse 34 10a
Evaporative emissions canister vent solenoid (on evap canister, near front of fuel tank)
G103 (right rear of engine)
Gnd
Hot at all times
Iat sensor
Ign
Intake air temperature (iat)/ mass airflow (maf) sensor (integral with mass airflow sensor)
Pnk
Pnk tan
S101
Signal
Tan
Underhood fuse block
Vehicle speed sensor (on right side of transmission)

4.3L VIN X, Engine Performance Wiring Diagram (5 of 5) for Chevrolet Chevy Express H2005 1500

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List of elements for 4.3L VIN X, Engine Performance Wiring Diagram (5 of 5) for Chevrolet Chevy Express H2005 1500:

1-2 ss ctrl
12 ref
2-3 ss ctrl
A/c low press
A/c request
A/c system (w/ front manual controls)
Anti-lock brakes system
B10
Clu rly ctrl
Cntrl
Crank fuse 27 10a
Crank volt
Cruise control system
Cruise engaged
Cruise inhibit
Distributor
Eng 1 fuse 23 15a
Evap canp ctrl
Evap vent ctrl
Front high sig
Front low sig
Fuel lev sig
Fuel press sig
G102 (left rear of engine)
G103 (right rear of engine)
Gen cycle sig
Gen ind
Gnd
Ho2s htr low
Ho2s low ctrl
Hot in run & start
Hot in start
Iac coil a hi
Iac coil a low
Iac coil b hi
Iac coil b low
Iat sig
Ic timing cntrl
Idle air control valve (on left side of throttle body)
Ign 1
Ign coil
Ignition coil
Ignition control module
Instrument panel cluster
Logic
Maf sig
Malfunction indicator lamp
Map sig
Mil ctrl
Nca
Pc sol hi ctrl
Pc sol lo ctrl
Pcm ign 1 fuse 38 15a
Pmp rly ctrl
Pnk
Pnk a
Powertrain control module (in engine compt, on left inner fender)
Press sens sig
Prnd c sig
Ref low
S101
Starting/ charging system
Starting/charging system
Tan
Tcc pwm ctrl
Tcc sol ctrl
Tft sens sig
Tp sens sig
Underhood fuse block
Vss

5.3L VIN T

5.3L VIN T, Engine Performance Wiring Diagram (1 of 5) for Chevrolet Chevy Express H2005 1500

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List of elements for 5.3L VIN T, Engine Performance Wiring Diagram (1 of 5) for Chevrolet Chevy Express H2005 1500:

(5.3l)
(lower right rear of engine) crankshaft position (ckp) sensor
(under left side of dash) data link connector
+5v
12 ref
3-2 ss ctrl
A10
Abs system
Brk sw sig
C10
Ckp 1 sig
Cls 2 data
Cmp sig
D10
E10
Ect sig
Eng 1 fuse 23 15a
Eng 2 fuse 21 10a
G103 (right rear of engine)
Gnd
Ho2s hi sig
Ho2s lo
Hot at all times
Hot in accy, run & start
Hot in run & start
Ign
Ign 0 fuse 10a
Inj 1 ctrl
Inj 2 ctrl
Inj 3 ctrl
Inj 4 ctrl
Inj 5 ctrl
Inj 6 ctrl
Inj 7 ctrl
Inj 8 ctrl
Injectors
Ks 1 signal
Ks 2 signal
O2a fuse 15a
O2b fuse 15a
Oil lev sw sig
Pcm batt fuse 2 20a
Pnk
Pnk a
Powertrain control module (in engine compt, on left inner fender)
Prnd a sig
Prnd b sig
Prnd p sig
Range b
Range c
Ref low
Req torq sig
Rly ctrl
S101
Sp200 (in dash wiring harn, 10cm from underhood pass- through grommet breakout)
Starting/ charging system
Tan
Tan b
Uart ser data
Under- hood fuse block
W/ actice handling
W/o actice handling

5.3L VIN T, Engine Performance Wiring Diagram (2 of 5) for Chevrolet Chevy Express H2005 1500

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List of elements for 5.3L VIN T, Engine Performance Wiring Diagram (2 of 5) for Chevrolet Chevy Express H2005 1500:

(cargo/passenger: in chassis harn, 44 cm from ebcm connector breakout) s301
(cutaway: in chassis harn, 87 cm from ebcm connector breakout)
(not used)
Cargo/ passenger
Cutaway
Engine coolant temperature sensor (on left side of engine)
Engine oil level switch (right side of oil pan)
Fuel pump & sender assembly (in fuel tank)
Fuel pump fuse 12 20a
Fuel pump relay
G102 (left rear of engine)
G103 (right rear of engine)
G400 (on inner left rear frame rail)
Heated oxygen sensor (bank 1 sensor 1) (in exh pipe, front of cat converter)
Heated oxygen sensor (bank 1 sensor 2) (in exh pipe, rear of cat converter)
Heated oxygen sensor (bank 2 sensor 1) (in exh pipe, front of cat converter)
Heated oxygen sensor (bank 2 sensor 2) (in exh pipe, rear of cat converter)
Hot at all times
Knock sensor 1 (below front of intake manifold)
Knock sensor 2 (below rear of intake manifold)
Nca
Park/neutral position switch (left side of transmission)
Pnk
S101
S102
Tan
Throttle position sensor (w/o actice handling) (on left side of throttle body)
Under- hood fuse block

5.3L VIN T, Engine Performance Wiring Diagram (3 of 5) for Chevrolet Chevy Express H2005 1500

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List of elements for 5.3L VIN T, Engine Performance Wiring Diagram (3 of 5) for Chevrolet Chevy Express H2005 1500:

(4l60e)
(4l60e) s
1-2 sol
2-3 sol
3-2 sol
5v ref
A red
A/t fluid pressure manual valve position switch
Accelerator pedal position sensor (under left side of dash)
Apps 1 sig
Apps 2 sig
Automatic transaxle
C12
Camshaft position sensor (top rear of engine)
Engine oil pressure (eop) sensor (top rear of engine)
Evaporative emission (evap) canister purge solenoid (on top of engine, near throttle body)
Fuel tank pressure sensor (in fuel tank)
Hot in run & start
Ign e fuse 22 10a
Low ref
M tan
Manifold absolute pressure sensor (top rear of engine)
N pnk
Pc sol valve
Pnk
Pnk a
Red
Rev
Sensor 1
Sensor 2
Stop- lamp switch (above brake pedal)
Tan
Tcc pwm sol
Tcc sol
Tft sensor
Throttle actuator control module (at left rear of engine compt)
Underhood fuse block

5.3L VIN T, Engine Performance Wiring Diagram (4 of 5) for Chevrolet Chevy Express H2005 1500

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List of elements for 5.3L VIN T, Engine Performance Wiring Diagram (4 of 5) for Chevrolet Chevy Express H2005 1500:

(at left rear of engine compt) throttle actuator control module
(on left side of transmission) (4l80e) automatic transmission input shaft speed sensor
5v ref
Can vent fuse 34 10a
Chmsl vlt
Cruise control system
Cruise on sw
Evaporative emissions canister vent solenoid (on evap canister, near front of fuel tank)
G102 (on left rear of engine)
G103 (right rear of engine)
Gnd
Ground
Hot at all times
Iat sensor
Ign
Ign 1 vlt
Intake air temperature (iat)/ mass airflow (maf) sensor (integral with mass airflow sensor)
Low ref
Pnk
Res/accel
S101
S102
Set/coast
Signal
Tac mtr cntl
Tac mtr cntl 1
Tan
Throttle body
Throttle position sensor 1
Throttle position sensor 2
Tps 1 sig
Tps 2 sig
Uart ser data
Underhood fuse block
Vehicle speed sensor (4l60-e: on right side of transmission) (4l80-e: on left side of transmission)

5.3L VIN T, Engine Performance Wiring Diagram (5 of 5) for Chevrolet Chevy Express H2005 1500

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List of elements for 5.3L VIN T, Engine Performance Wiring Diagram (5 of 5) for Chevrolet Chevy Express H2005 1500:

(5.3l)
(in even ignition/coil module jumper harn, on top right side of engine)
(in odd ignition/coil module jumper harn, on top left side of engine)
(left rear of engine) g102
1-2 ss ctrl
2-3 ss ctrl
A/c low press
A/c request
A/c system (w/ front manual controls)
Anti-lock brakes system
At iss high sig
At iss low sig
B b
B10
Clu rly ctrl
Crank fuse 27 10a
Crank volt
Cruise control system
Cruise engaged
Cruise inhibit
Ctrl
Del torq sig
Eng 1 fuse 23 15a
Evap canp ctrl
Evap vent ctrl
Front high sig
Front low sig
Fuel lev sig
Fuel press sig
G103 (right rear of engine)
Gen cycle sig
Gen ind
Gnd
Ho2s htr low
Ho2s low ctrl
Hot in run & start
Hot in start
Iac coil a hi
Iac coil a low
Iac coil b hi
Iac coil b low
Iat sig
Ic 1 ctrl
Ic 2 ctrl
Ic 3 ctrl
Ic 4 ctrl
Ic 5 ctrl
Ic 6 ctrl
Ic 7 ctrl
Ic 8 ctrl
Idle air control valve (on left side of throttle body)
Ign
Ign feed
Ignition coils
Instrument panel cluster
Logic
Maf sig
Malfunction indicator lamp
Map sig
Mil ctrl
Nca
Nca nca
Pc sol hi ctrl
Pc sol lo ctrl
Pcm ign 1 fuse 38 15a
Pmp rly ctrl
Pnk
Pnk d
Powertrain control module (in engine compt, on left inner fender)
Press sens sig
Prnd c sig
Red c
Ref lo
Ref low
S101
S183
S184
S185
S187
S188
Spark plug
Starting/ charging system
Starting/charging system
Tan
Tcc pwm ctrl
Tcc sol ctrl
Tft sens sig
Tp sens sig
Underhood fuse block
Vss
W/ actice handling
W/o actice handling

EXTERIOR LIGHTS

Back-up Lamps Wiring Diagram for Chevrolet Chevy Express H2005 1500

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List of elements for Back-up Lamps Wiring Diagram for Chevrolet Chevy Express H2005 1500:

Body control module (behind lower right side of dash)
C5 d
F c5
G401 (on top of right "d" pillar)
G402 (on top of left "d" pillar)
Hot at all times
Left backup lamp
Mirrors system
Right backup lamp
S401
S403
S404 (in body harn, 38 cm g402 breakout)
Tbc 2 fuse 18 15a
Underhood fuse block (left side of engine compartment)

Exterior Lamps Wiring Diagram, Cutaway Chassis (1 of 2) for Chevrolet Chevy Express H2005 1500

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List of elements for Exterior Lamps Wiring Diagram, Cutaway Chassis (1 of 2) for Chevrolet Chevy Express H2005 1500:

(in dash harness, 13 cm from radio & hvac control assembly s245
(in dash harness, 6 cm from radio & hvac control assembly
Battery pos volt
Body control module (behind lower right side of dash)
Body fuse block (under left front seat)
C1 a1
C1 e4
C1 e6
C1 f2
C2 a3
C2 b2
C2 c1
C2 d1
Dr trn mir fuse 14 10a
Driver's outside rear view mirror (left turn signal)
Drl low control
Drl low ctrl
Drl on/off sig
Fr prk fuse 22 10a
G302 (behind left kick panel)
G347 (on bottom of left "b" pillar)
Ground
Hazard sw sig
Hazard switch
Head
Headlamp and panel dimmer switch
Hot at all times
Instrument panel cluster
Left
Left turn signal ind
Logic
Lr pkr fuse 18 10a
Lt drl/turn feed
Lt ft turn sig feed
Lt rr stop/turn feed
Lt turn sig sw sig
Nca
Not used
Off
Park
Park lamp relay
Park lamp rly ctrl
Park lamp sw on sig
Pass trn mir fuse 19 10a
Passenger's outside rear view mirror (right turn signal)
Pnk
Provisional
Right
Right turn signal ind
Rr pkr fuse 20 10a
Rt drl/turn feed
Rt ft turn sig feed
Rt rr stop/turn feed
Rt turn sig sw sig
S246
S247
S264
S500
S600
Splice pack sp347
Stop lamp sw sig
Trlr prk fuse 21 15a
Turn signal switch
Turn signal/ multifunction switch
Turn signal/hazard flasher module (behind left center of dash)
Upftr prk fuse 16 10a
W/ o/s, remote control, electric, heated, light sensitive, manual folding, turn signal indicator, color mirrors

Exterior Lamps Wiring Diagram, Cutaway Chassis (2 of 2) for Chevrolet Chevy Express H2005 1500

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List of elements for Exterior Lamps Wiring Diagram, Cutaway Chassis (2 of 2) for Chevrolet Chevy Express H2005 1500:

B11
Battery positive voltage
Btsi/ bu fuse 36 15a
C1 f11
C2 b6
C2 b7
C2 c1
C2 f10
C3 c1
C3 c6
C3 d1
C3 d2
C4 h
C4 p
C405
C405 b
C405 f
Cruise control system
E11
E12
F11
Flasher fuse 14 15a
G100 (left front of engine compartment)
G101 (right front of engine compartment)
G302 (behind left kick panel)
G400 (on inner left frame rail)
G400 (on inner left rear frame rail)
Ground
Hot at all times
Hot in run or start
Ign e fuse 22 10a
Left front marker lamp
Left front park/ turn signal lamp
Lh drl/ turn fuse 10 10a
Lr stop/ turn fuse 3 10a
Not used
Ohms
Park/neutral position switch (left side of transmission)
Pnk
Resistor
Rh drl/ turn fuse 9 10a
Right front marker lamp
Right front park/ turn signal lamp
Rr stop/ turn fuse 4 10a
S110
S118
S231 in dash harn, 23 cm from c200)
S247
S402
Stop lamp switch (above brake pedal)
Stop lp fuse 7 15a
Trlr bu fuse 5 10a
Trlr fuse 13 30a
Trlr fuse 50 30a
Underhood fuse block (left side of engine compartment)

Exterior Lamps Wiring Diagram, Except Cutaway (1 of 2) for Chevrolet Chevy Express H2005 1500

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List of elements for Exterior Lamps Wiring Diagram, Except Cutaway (1 of 2) for Chevrolet Chevy Express H2005 1500:

(in dash harness, 13 cm from radio & hvac control assembly s245
(in dash harness, 6 cm from radio & hvac control assembly
Battery pos volt
Body control module (behind lower right side of dash)
Body fuse block (under left front seat)
C1 a1
C1 b8
C1 e6
C1 f2
C2 a3
C2 b2
C2 c1
C2 d1
C2 f2
Center high mounted stop lamp
Cruise control system
Dr trn mir fuse 14 10a
Driver's outside rear view mirror (left turn signal)
Drl low control
Drl low ctrl
Drl on/off sig
Fr prk fuse 22 10a
G302 (behind left kick panel)
G347 (on bottom of left "b" pillar)
G401 (on top of right "d" pillar)
G402 (on top of left "d" pillar)
Ground
Hazard sw sig
Hazard switch
Head
Headlamp and panel dimmer switch
Hot at all times
Instrument panel cluster
Left
Left tail/ stop/ turn signal lamp
Left turn signal ind
License lamp
Logic
Lr pkr fuse 18 10a
Lr stop/ turn fuse 4 10a
Lt drl/turn feed
Lt ft turn sig feed
Lt rr stop/turn feed
Lt turn sig sw sig
Nca
Not used
Off
Park
Park lamp relay
Park lamp rly ctrl
Park lamp sw on sig
Pass trn mir fuse 19 10a
Passenger's outside rear view mirror (right turn signal)
Pnk
Provisional
Right
Right tail/ stop/ turn signal lamp
Right turn signal ind
Rr pkr fuse 20 10a
Rr stop/ turn fuse 6 10a
Rt drl/turn feed
Rt ft turn sig feed
Rt rr stop/turn feed
Rt turn sig sw sig
S246
S247
S264
S401
S403
S500
S600
S902
Splice pack sp347
Stop lamp sw sig
Stop/ chmsl fuse 8 10a
Trlr prk fuse 21 15a
Turn signal switch
Turn signal/ multifunction switch
Turn signal/hazard flasher module (behind left center of dash)
Upftr prk fuse 16 10a
W/ o/s, remote control, electric, heated, light sensitive, manual folding, turn signal indicator, color mirrors

Exterior Lamps Wiring Diagram, Except Cutaway (2 of 2) for Chevrolet Chevy Express H2005 1500

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List of elements for Exterior Lamps Wiring Diagram, Except Cutaway (2 of 2) for Chevrolet Chevy Express H2005 1500:

Battery positive voltage
Btsi/ bu fuse 36 15a
C1 f11
C2 b4
C2 b6
C2 c1
C2 d8
C2 e1
C2 f10
C2 f9
C3 c1
C3 d1
C4 p
E12
Flasher fuse 14 15a
G100 (left front of engine compartment)
G101 (right front of engine compartment)
G302 (behind left kick panel)
G400 (on inner left frame rail)
G400 (on inner left rear frame rail)
Ground
Hot at all times
Hot in run or start
Ign e fuse 22 10a
Left front marker lamp
Left front park/ turn signal lamp
Left trailer stop/ turn relay (on left outer frame rail, near center of vehicle
Lh drl/ turn fuse 10 10a
Lr stop/ turn fuse 3 10a
Park/neutral position switch (left side of transmission)
Pnk
Rh drl/ turn fuse 9 10a
Right front marker lamp
Right front park/ turn signal lamp
Right trailer stop/ turn relay (on left outer frame rail, near center of vehicle
Rr stop/ turn fuse 4 10a
S110
S118
S247
S402
Stop lamp switch (above brake pedal)
Stop lp fuse 7 15a
Trl stop/ turn fuse 17 15a
Trlr bu fuse 5 10a
Trlr fuse 13 30a
Trlr fuse 50 30a
Underhood fuse block (left side of engine compartment)
W/ wiring harness truck trailer, hd

GROUND DISTRIBUTION

Ground Distribution Wiring Diagram (1 of 4) for Chevrolet Chevy Express H2005 1500

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List of elements for Ground Distribution Wiring Diagram (1 of 4) for Chevrolet Chevy Express H2005 1500:

(4.3l)
(4.3l) ignition control module (icm)
(4.8l/5.3l/6.0l)
(forward lamp harness, approx 12 cm from left headlamp connector breakout)
(in engine harness, approx 4 cm from knock sensor breakout)
A/c compressor clutch
A/c low pressure switch
Battery
Blower motor resistor assembly
Brake fluid level switch
Electronic brake control module (ebcm)
Engine oil level switch
Fuel pump relay
G100 (left front of engine compt)
G101 (right front of engine compt)
G102 (on left rear of engine)
G103 (on right rear of engine)
G104 (on lower right front of engine)
G105 (on right front frame rail, in engine compt)
G106 (on right front of engine compt)
G300 (on left frame rail, near ebcm) (w/ active handling)
G300 (on left frame rail, near ebcm) (w/o active handling)
G301 (behind left kick panel)
Horn assembly
Ignition coil 1
Ignition coil 2
Ignition coil 3
Ignition coil 4
Ignition coil 5
Ignition coil 6
Ignition coil 7
Ignition coil 8
Inflatable restraint i/p module disable switch
Inflatable restraint sensing & diagnostic module (sdm)
Intake air temperature (iat)/ mass air flow (maf) sensor
Left front marker lamp
Left front park/turn signal lamp
Left headlamp (w/ sealed beam headlamps)
Left high beam headlamp (w/ composite headlamps)
Left low beam headlamp (w/ composite headlamps)
Nca
On top right side of engine)
Park/ neutral position (pnp) switch
Powertrain control module (pcm)
Right front marker lamp
Right front park/turn signal lamp
Right headlamp (w/ sealed beam headlamps)
Right high beam headlamp (w/ composite headlamps)
Right low beam headlamp (w/ composite headlamps)
S101 s101 (in engine harness, approx 43 cm from underhood lamp breakout)
S118 (forward lamp harness, approx 13 cm from right headlamp connector breakout)
Underhood fuse block
Underhood lamp

Ground Distribution Wiring Diagram (2 of 4) for Chevrolet Chevy Express H2005 1500

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List of elements for Ground Distribution Wiring Diagram (2 of 4) for Chevrolet Chevy Express H2005 1500:

(if equipped) cruise control module
(if equipped) power brake booster fluid flow alarm switch
(if equipped) rear seat audio control
(if equipped) remote control door lock receiver
(in dash harness, approx 5 cm from inflatable restraint dash module connector breakout)
(in dash harness, approx 8 cm from c200 breakout)
(rv/upfitter) provisional
(w/ cigar lighter) cigar lighter
(w/ radio) radio
(w/o cigar lighter) auxiliary power outlet 1
(w/o radio) chime
A/t shift lock control solenoid
A12
Air temperature actuator
Auxiliary power outlet 2
Auxiliary relay 24
Body control module (bcm)
Body fuse block
C200 breakout)
C222
Cargo unlk relay 27
Ctsy lp relay 26
Data link connector (dlc)
Door lks relay 30
Drv unlk relay 28
G302 (behind left kick panel)
G303 (behind left kick panel)
G304 (behind right kick panel)
Hazard switch
Headlamp & panel dimmer switch
Headlamp dimmer switch
Hvac control assembly
Ignition key alarm switch
Inside rearview mirror
Instrument panel cluster
Pass unlk relay 31
Rr defog relay 25
S264 (in steering column harness, approx 29 cm from c200)
Tan
Tow/haul switch
Turn signal/ hazard flasher module
Turn signal/ multifunction switch
Vehicle communication interface module (vcim)
W/ global positioning system (gps)
W/ heated outside mirrors & rear defogger
Windshield washer fluid pump
Windshield wiper motor
Windshield wiper/washer switch
Wnd rap relay 23

Ground Distribution Wiring Diagram (3 of 4) for Chevrolet Chevy Express H2005 1500

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List of elements for Ground Distribution Wiring Diagram (3 of 4) for Chevrolet Chevy Express H2005 1500:

(auxiliary hvac)
(if equipped) auxiliary blower motor switch
(if equipped) auxiliary hvac control processor
(if equipped) driver door lock switch
(if equipped) driver window switch
(if equipped) front passenger door latch assembly
(if equipped) front passenger door lock switch
(if equipped) front passenger seat adjuster switch
(if equipped) left rear door jamb switch
(if equipped) left vanity mirror lamp
(if equipped) rear auxiliary hvac control assembly
(rv/ upfitter)
(rv/upfitter) provisional p
C320
C321
C409
Cargo/ cutaway
Courtesy/ reading lamp (mid)
Courtesy/ reading lamp (rear)
Driver door loatch assembly
Driver outside rearview mirror
Driver seat adjuster switch
Except rv/upfitter
From splice pack sp347 a (diagram 3 of 4)
From splice pack sp347 b (diagram 3 of 4)
Front auxiliary hvac control assembly
Front courtesy/ reading lamp
Front passenger mini wedge (door jamb switch)
G347 (on bottom of left "b" pillar)
If equipped
Left front seat belt switch
Left vanity mirror lamp
Nca
Outside rearview mirror switch
Passenger
Passenger outside rearview mirror
Provisional b
Provisional c
Right rear door jamb switch
Right vanity mirror lamp
Rv/upfitter
S204 (in vanity mirror lamp harness, approx 13 cm from c203)
S304 (in driver seat harness, approx 11 cm from driver seat adjuster switch connector breakout)
S500 (in left front door harness, approx 6 cm from left front door door speaker breakout)
S600 (in right front door harness, approx 7 cm from right front door speaker breakout)
Splice pack sp347
To splice pack sp347 (diagram 3 of 4)
W/ electronic side door lock control
W/ outside heated mirrors
W/ power seat adjuster
W/o electronic side door lock control
W/o power seat adjuster
W/o rear auxiliary controls

Ground Distribution Wiring Diagram (4 of 4) for Chevrolet Chevy Express H2005 1500

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List of elements for Ground Distribution Wiring Diagram (4 of 4) for Chevrolet Chevy Express H2005 1500:

(commercial/tradesman package)
(if equipped) cargo door latch assembly
(if equipped) cruise control module
(if equipped) left rear window defogger grid
(if equipped) left trailer stop/turn relay
(if equipped) rear cargo door lock switch
(if equipped) right rear window defogger grid
(if equipped) right trailer stop/turn relay
(in body harness, approx 16 cm from chmsl connector breakout)
Auxiliary air temperature actuator
Auxiliary blower motor
Auxiliary heater
Auxiliary mode actuator
B11
Brake pressure differential switch
C405
Center high mounted stop lamp (chmsl)
Cutaway
Dome fluorescent work lamp 1
Dome fluorescent work lamp 2
Except rv/ upfitter
Fluorescent work lamp connector)
Fuel pump & sender assembly
G400 (on inner left rear frame rail)
G401 (on top of right "d" pillar)
G402 (on top of left "d" pillar)
G403 (on center of left "d" pillar)
Heavy duty/ cutaway (w/o trailer wiring
Left backup lamp
Left front dome fluorescent work lamp
Left front side front access panel actuator
Left front side rear access panel actuator
Left rear dome fluorescent work lamp
Left rear side front access panel actuator
Left rear side rear access panel actuator
Left tail/stop & turn signal lamp
Left taillamp assembly
License lamp
Light duty
Light duty/ heavy duty, cutaway (w/ trailer wiring)
Nca
Passenger/ cargo van
Rear dome lamp
Rear hvac system
Resistor
Right backup lamp
Right dome fluorescent work lamp
Right side front access panel actuator
Right side rear access panel actuator
Right tail/stop & turn signal lamp
Right taillamp assembly
S231 (in dash harness, 23 cm from c200)
S300 (in prp/uf2 harness, approx 42 cm from left front side front access panel actuator)
S403 (in body harness, approx 6 cm from g401 breakout)
S411 (in rear hvac harness, approx 6 cm from auxiliary blower motor connector breakout)
S902 (in right rear door harness, approx 19 cm from license lamp connector breakout)
Stop lamp switch
Trailer wiring harness
Turn/ hazard flasher module
Underhood fuse block

HEADLIGHTS

Headlights Wiring Diagram for Chevrolet Chevy Express H2005 1500

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List of elements for Headlights Wiring Diagram for Chevrolet Chevy Express H2005 1500:

A12
B/c
Body control module (behind lower right side of dash)
Composite
Dimmer switch signal
Flash to pass signal
Ftp
Fusible link b
G100 (left front of engine compt)
G101 (right front of engine compt)
G302 (behind left kick panel)
Hdlp- hibm relay
Hdlp- lobm relay
Head
Headlamp & panel dimmer switch
Headlamp dimmer switch
Headlamp on signal
High beam relay control
Hot at all times
Left headlamp
Left high beam headlamp
Left low beam headlamp
Lh- hibm fuse 44 10a
Lh- hibm fuse 45 10a
Lh- lobm fuse 43 10a
Low beam relay control
Off
Park
Red
Rh- lobm fuse 42 10a
Right headlamp
Right high beam headlamp
Right low beam headlamp
S110
S118
S247
S264
Sealed
Turn signal/ multifunction switch
Underhood fuse block (on left side of engine compt)

HORN

Horn Wiring Diagram for Chevrolet Chevy Express H2005 1500

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List of elements for Horn Wiring Diagram for Chevrolet Chevy Express H2005 1500:

Body control module (behind lower right side of dash)
C1 f4
C2 b9
C2 c3
G c1
G102 (on left rear of engine)
Horn assembly (left front of engine compt)
Horn contact
Horn fuse 15 15a
Horn relay
Horn relay control
Hot at all times
Nca
S102
Tan
Turn signal cancel cam
Turn signal/ multifunction switch
Underhood fuse block (on left side of engine compartment)

INSTRUMENT CLUSTER

Instrument Cluster Wiring Diagram for Chevrolet Chevy Express H2005 1500

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List of elements for Instrument Cluster Wiring Diagram for Chevrolet Chevy Express H2005 1500:

(chassis harness, near breakout to ebcm)
(right rear of engine)
000000 trip
5 volt ref
A10
A11
Abs ind
Air bag ind
B10
B11
B12
Batt voltage
Battery ind
Belt sw
Body control module (bcm) (lower right side of dash)
Brake ind
Brake warning ind control
Check gages ind
Class 2 (bcm)
Class 2 (ebcm)
Class 2 (pcm)
Class 2 (sdm)
Computer data lines system
Cruise ind
Dimming
Drl ind
E10
E12
Ect sens
Engine controls system
Engine coolant temp
Engine coolant temperature sensor (left side of engine)
Engine oil level switch (4.8l, 5.3l, 6.0l) (right side of oil pan)
Engine oil pressure sensor (top rear of engine)
Exterior lights system
Fuel gauge
Fuel level
Fuel pump & sender assembly (in fuel tank)
G103
G302 (behind left kick panel)
G303 (behind left kick panel)
G347 (bottom of left "b" pillar)
Ground
High beam ind
Hot at all times
Hot in run or start
Ign
Ign e fuse 22 10a
Ign voltage
Illumination (6 bulbs)
Inflatable restraint sensing & diagnostic module (under left front seat)
Instrument panel cluster
Ipc fuse 31 10a
Lcd display
Left front seat belt switch (in left front seat belt latch)
Left turn ind
Lh frt turn sig sup volt
Low ref
Malfunction ind lamp
Mil ctrl
Mil signal
Off
Oil press
Oil pressure
Oil pressure ind
P r n d 3 2 1
Park brake
Park brake switch (under left side of dash)
Pnk
Power brake booster fluid flow alarm switch (near power steering pump, in outlet hose)
Power brake booster fluid pressure alarm switch (in booster inlet hose)
Powertrain control module (in engine compt, on left inner fender)
Rh frt turn sig sup volt
Right turn ind
S101
S247
S248
S301
S304
Seat belt ind
Security ind
Serial data
Speedometer
Splice pack sp347
Tan
Tow/haul ind
Traction control ind's
Trip reset switch
Trip reset swn signal
Underhood fuse block (in engine compt, attached to left front fender)
Volt sig
Voltmeter
W/ pwr seat
W/o pwr seat

INTERIOR LIGHTS

Courtesy Lamps Wiring Diagram, with Upfitter Package for Chevrolet Chevy Express H2005 1500

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List of elements for Courtesy Lamps Wiring Diagram, with Upfitter Package for Chevrolet Chevy Express H2005 1500:

(in vanity mirror lamp harness, lf passenger compt, approx 42cm (15.5in) from left vanity mirror breakout) s331
(left side of engine compt) underhood fuse block
A10
A11
Auxiliary 1 fuse 32 50a
B c4
Battery
Body control module (bcm) (lower right side of dash)
Body fuse block (below drivers seat)
C2 d11
Cargo door latch assembly
Ctsy
Ctsy lamps on sig
Ctsy lp relay 26
Ctsy lp/ seo fuse 3 15a
D c4
D1 c2
Defeat sw sig
Dome
Dome defeat
Dome flour- escent fuse 2 10a
Dome fluorescent work lamp 1
Dome fluorescent work lamp 2
Dome fluorescent work lamp relay (attached to left "b" pillar)
Door open sw sig
Driver door latch assembly
E5 c3
Fl dome lp sig
Fl dome rly ctrl
G102 (left rear of engine)
G302 (behind left kick panel)
G347 (bottom of left "b" pillar)
G402 (top of left "d" pillar)
G403 (center of left "d" pillar)
Headlamp and panel dimmer switch
Hndl
Hot at all times
Left front dome fluorescent work lamp
Left rear dome fluorescent work lamp
Left rear door jamb switch
Left vanity mirror lamp
Not used
Passenger door latch assembly
Power
Provisional
Rear door ajar
Rear door sw sig
Rear fuse block (attached to left "b" pillar)
Red
Right dome fluorescent work lamp
Right rear door jamb switch
Right vanity mirror lamp
S102
S204
S247
S300
S312
S348
S350
S500
S600
S902
Splice pack sp347
Tan
Tbc 2 fuse 18 15a
Underhood lamp
W/ power door locks
W/o power door locks

Courtesy Lamps Wiring Diagram, without Upfitter Package (1 of 2) for Chevrolet Chevy Express H2005 1500

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List of elements for Courtesy Lamps Wiring Diagram, without Upfitter Package (1 of 2) for Chevrolet Chevy Express H2005 1500:

A10
A11
Auxiliary 1 fuse 32 50a
Battery
Body control module (bcm) (lower right side of dash)
Body fuse block (below drivers seat)
Cargo
Cargo door latch assembly
Ctsy
Ctsy lamps on sig
D11
Defeat sw sig
Dome
Dome defeat
Door open sw sig
Driver door latch assembly
Fl work lmp ctrl
Fl work lmp sig
G302 (behind left kick panel)
G347 (bottom of left "b" pillar)
G401 (top of right "d" pillar)
G402 (top of left "d" pillar)
Headlamp and panel dimmer switch
Hndl
Hot at all times
Left rear door jamb switch
Lf door sw sig
Not used
Passenger door latch assembly
Power
Rear dome lamp
Rear door ajar
Red
Right rear door jamb switch
S247
S401
S500
S600
S902
Splice pack sp347
Tan
Tbc 2 fuse 18 15a
Underhood fuse block (left side of engine compt)
W/ power door locks
W/o power door locks

Courtesy Lamps Wiring Diagram, without Upfitter Package (2 of 2) for Chevrolet Chevy Express H2005 1500

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List of elements for Courtesy Lamps Wiring Diagram, without Upfitter Package (2 of 2) for Chevrolet Chevy Express H2005 1500:

Cargo/cutaway w/o vanity mirrors
Dome
Dome flour- escent fuse 2 10a
Dome fluorescent work lamp 1
Dome fluorescent work lamp 2
Dome fluorescent work lamp relay (attached to left "b" pillar)
Front courtesy reading lamps
Front courtesy/ reading light
G102 (left rear of engine)
G403 (center of left "d" pillar)
Left front dome fluorescent work lamp
Left rear dome fluorescent work lamp
Left vanity mirror lamp
Mid courtesy reading lamps
Nca
Reading
Rear courtesy reading lamps
Rear fuse block (attached to left "b" pillar)
Red
Right dome fluorescent work lamp
Right vanity mirror lamp
S102
S300
S312 (in pfp/ uf2 harn)
S314
S322
S330
S348
S350 (in prp/ uf2 harn)
S406 (in head- liner harn
S407
Underhood lamp
W/ vanity mirrors

Instrument Illumination Wiring Diagram for Chevrolet Chevy Express H2005 1500

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List of elements for Instrument Illumination Wiring Diagram for Chevrolet Chevy Express H2005 1500:

5 volt ref
6 bulbs
A11
A12
Auxiliary blower motor switch
Auxiliary heater plumbing and wiring and auxiliary heater
B11
B12
Back-up lps ctrl
Body control module (bcm) (lower right side of dash)
Body fuse block (below left front seat)
Dimming input
Dimming return
Driver door lock switch
Driver window switch
Front auxiliary hvac control assembly
Front passenger door lock switch
Front passenger window switch
G301 (behind left kick panel)
G302 (behind left kick panel)
G303 (behind left kick panel)
G304 (behind right kick panel)
G347 (on bottom of left "b" pillar)
Gnd
Headlamp and panel dimmer switch
Headlamp on ind
Hvac control assembly
Inflatable restraint i/p module disable switch
Instrument panel cluster
Led dimming sig
Logic
Panel lps dim
Pnk
Rear auxiliary hvac control assembly
Rear seat audio (rsa) control
S247
S248
S249
S250 (in dash harn, 5 cm from air temperature actuator connector breakout)
S314
S330
S355
S500
S600
Splice pack sp347
Tow/haul switch
Traction control switch
W/ hvac provisions
W/ rear aux controls
W/o rear aux controls
W/o recreational vehicle sales package, upfitter w/ recreational vehicle sales package, upfitter
With p/windows and door locks

POWER DISTRIBUTION

Power Distribution Wiring Diagram (1 of 6) for Chevrolet Chevy Express H2005 1500

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List of elements for Power Distribution Wiring Diagram (1 of 6) for Chevrolet Chevy Express H2005 1500:

(not used)
(rfa fuse 20) (diagram 1 of 6)
(w/ active handling)
(w/o active handling)
A10
A12
Abs fuse 48 60a
Aux pwr fuse 29 20a
Auxiliary power outlet 1
Auxiliary power outlet 2
B10
Battery
Blow fuse 51 40a
Blower motor resistor assembly
Body control module (bcm)
Body fuse block
C2 a10
C2 b5
C2 b7
C2 f12
C3 a5
C6 b
C7 a
Chime (w/o radio)
Cigar fuse 30 15a
Cigar lighter
D10
Data link connector (dlc)
Driver seat adjuster switch (if equipped)
E10
E12
Electronic brake control module (ebcm)
F10
F12
Flasher fuse 14 15a
From underhood fuse block b
Front passenger seat adjuster switch (if equipped)
Fusible link b
Fusible link c
G304 (behind right kick panel)
Generator
Hvac control assembly
Instrument panel cluster (ipc)
Ipc fuse 31 10a
Left trailer stop/turn relay (if equipped)
Mega fuse 65 125a
Pcm bat fuse 2 20a
Powertrain control module (pcm)
Pwr seat circuit breaker 60 30a
Radio (w/ radio)
Radio bat fuse 1 15a
Red
Remote control door lock receiver (if equipped)
Rfa fuse 20 10a
Right trailer stop/turn relay (if equipped)
Rr def/htd mir fuse 8 20a
S249
Spare fuse 64
Starter
Stop lamp switch
Stop lp fuse 7 15a
Tbc 2 fuse 18 15a
Tbc 3 fuse 16 15a
Tbc 4 fuse 11 15a
Tbc fuse 19 10a
To body fuse block (door lks fuse 15) (diagram 2 of 6)
To underhood fuse block (can vent fuse 34) (diagram 2 of 6)
To underhood fuse block (tbc fuse 19) (diagram 1 of 6)
Trl stop/trn fuse 17 15a
Trlr fuse 13 30a
Trlr fuse 50 30a
Turn signal/ hazard flasher module
Underhood fuse block (on left side of engine compt)
Vehicle communication interface module (vcim) (if equipped)
W/ cigar lighter
W/ rear window defogger/ heated mirrors
W/o cigar lighter

Power Distribution Wiring Diagram (2 of 6) for Chevrolet Chevy Express H2005 1500

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List of elements for Power Distribution Wiring Diagram (2 of 6) for Chevrolet Chevy Express H2005 1500:

(hdlp hibm relay) (diagram 2 of 6)
(on left side of engine compt) underhood fuse block
(pwr seat circuit breaker 60) (diagram 1 of 6)
(under left front seat) body fuse block
A/c fuse 32 10a
A/c relay
Auxiliary 2 fuse 33 50a
Auxiliary relay
C1 e6
C4 r
C5 a
Can vent fuse 34 10a
Cargo lks fuse 5 10a
Cargo unlk relay
Composite
Door lks fuse 15 20a
Door lks relay
Drv lks fuse 7 10a
Drv unlk relay
Evaporative emissions (evap) canister vent solenoid
From underhood fuse block (mega fuse 65) (diagram 1 of 6)
From underhood fuse block c
From underhood fuse block d
Fuel pump fuse 12 20a
Fuel pump relay
Hdlp hibm relay
Hdlp lobm relay
Horn fuse 15 15a
Horn relay
Htd mir/defog fuse 12 30a
Ign a fuse 49 40a
Ign b fuse 52 40a
Left headlamp
Left hibm fuse 44 10a
Left high beam headlamp
Left lobm fuse 43 10a
Left low beam headlamp
Pass unlk relay
Right headlamp
Right hibm fuse 45 10a
Right high beam headlamp
Right lobm fuse 42 10a
Right low beam headlamp
Rr defog relay
Sealed
Spare fuse 33 10a
Spare relay
Starter relay
To body fuse block (park lp relay) (diagram 3 of 6)
To ignition switch (diagram 3 of 6)
To underhood fuse block (ign a fuse 49) (diagram 2 of 6)
Wpr fuse 41 15a
Wpr relay

Power Distribution Wiring Diagram (3 of 6) for Chevrolet Chevy Express H2005 1500

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List of elements for Power Distribution Wiring Diagram (3 of 6) for Chevrolet Chevy Express H2005 1500:

(auxiliary 2 fuse 33) (diagram 2 of 6)
(not used)
(on left side of engine compt) underhood fuse block
(provisional) (rv/upfitter)
(under left front seat) body fuse block
(w/ active handling)
(w/o active handling)
Acc
Body control module (bcm)
Btsi fuse 28 10a
Btsi/bu fuse 36 15a
C320
C405
Cruise control module (if equipped)
Ctsy lp relay (rv/upfitter)
Ctsy lp/seo fuse 3 15a
Cutaway
F11
Fr prk fuse 22 10a
From body fuse block g
From underhood fuse block (ign a fuse 49) (diagram 2 of 6)
From underhood fuse block (ign b, fuse 52) (diagram 2 of 6)
Heated oxygen sensor (ho2s) bank 1 sensor 1
Heated oxygen sensor (ho2s) bank 1 sensor 2
Heated oxygen sensor (ho2s) bank 2 sensor 1
Heated oxygen sensor (ho2s) bank 2 sensor 2
Ignition switch
Inflatable restraint i/p module disable switch (heavy duty)
Inflatable restraint sensing & diagnostic module
Inside rearview mirror (w/ temp display)
Isrv fuse 26 10a
Left front marker lamp
Left front park/turn signal lamp
Left tail/stop & turn signal lamp
Left taillamp assembly
License lamp
Lock
Lr prk fuse 18 10a
Nca
O2a fuse 40 15a
O2b fuse 39 15a
Off
Park acc
Park lp relay
Park/ neutral position (pnp) switch
Pcm ign 1 fuse 38 15a
Pnk
Pnk f
Powertrain control module (pcm)
Reverse
Right front marker lamp
Right front park/turn signal lamp
Right tail/stop & turn signal lamp
Right taillamp assembly
Rr prk fuse 20 10a
Run
Sir fuse 37 10a
Spare fuse 25
Spare fuse 35
Start
Steering wheel speed/ position sensor
Stop lamp switch
Tbc ign 1 fuse 24 10a
Throttle control actuator module
To body fuse block (auxiliary 1 fuse 32) (diagram 5 of 6)
To body fuse block (brks fuse 11) (diagram 5 of 6)
To underhood fuse block (crank fuse 27) (diagram 4 of 6)
To underhood fuse block (eng 2 fuse 21) (diagram 4 of 6)
To underhood fuse block (ign o fuse 6) (diagram 4 of 6)
To underhood fuse block (tbc acc fuse 46) (diagram 4 of 6)
Trailer wiring
Trlr bu fuse 5 10a
Trlr prk fuse 21 15a
Underhood fuse block
Upftr prk fuse 16 10a

Power Distribution Wiring Diagram (4 of 6) for Chevrolet Chevy Express H2005 1500

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List of elements for Power Distribution Wiring Diagram (4 of 6) for Chevrolet Chevy Express H2005 1500:

(4.3l)
(4.8l/5.3l/ 6.0l)
(except 4.3l)
(not used)
(on left side of eng compt) underhood fuse block
A/c relay
A11
Automatic transmission
B10
Body control module (bcm)
C10
C12
C175
Crank fuse 27 10a
Cruise control on/off switch
D10
E10
E12
Eng 1 fuse 23 15a
Eng 2 fuse 21 10a
Evaporative emissions (evap) canister purge solenoid
Fr wpr fuse 47 25a
From ignition switch (diagram 3 of 6)
From underhood fuse block (sir fuse 37) (diagram 3 of 6)
Fuel injector
Fuel injector (except 4.3l)
Ign 0 fuse 6 10a
Ign e fuse 22 10a
Ignition coil
Ignition coil module
Instrument panel cluster
Mass air flow (maf) sensor
Park/ neutral position (pnp) switch
Pnk
Pnk pnk
Powertrain control module (pcm)
S184 (in odd ignition coil module jumper harness, on top left side of engine)
S185 (in even ignition coil module jumper harness, on top right side of engine)
Stop lamp switch
Tbc acc fuse 46 10a
Turn signal switch
Turn signal/ multifunction switch
Windshield wiper motor

Power Distribution Wiring Diagram (5 of 6) for Chevrolet Chevy Express H2005 1500

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List of elements for Power Distribution Wiring Diagram (5 of 6) for Chevrolet Chevy Express H2005 1500:

(in front headliner (in upfitter hvac control harness, approx 88 cm from c303 breakout) s307
(in rear hvac harness, approx 13 cm from auxiliary blower motor connector breakout) s405
(not used)
(or red)
(provisional)
(provisional) (rv/upfitter)
(w/ outside heated mirrors & rear window defogger)
(w/ rv upfitter option)
(w/o rv upfitter option)
Air temperature actuator
Auxiliary 1 fuse 32 50a
Auxiliary air temperature actuator
Auxiliary high speed blower motor relay
Auxiliary hvac control processor
Auxiliary low speed blower motor relay
Auxiliary med speed blower motor relay
Auxiliary mode actuator
Auxiliary relay
B10
Body control module
Body fuse block
Brks fuse 11 10a
C222
C407
Driver window switch (if equipped)
E11
Electronic brake control module (ebcm)
F10
F11
From body fuse block (ctsy lp/seo fuse 3) (diagram 3 of 6)
From ignition switch (diagram 3 of 6)
Front auxiliary hvac control assembly
Front passenger window switch (if equipped)
G302 (behind left kick panel)
Harness, approx 52 cm from c304 breakout) s307
Hvac 1 fuse 9 10a
Hvac control assembly
Hvac fuse 10 20a
Not available fuse 1
Osrvm fuse 2 10a
Outside rearview mirror switch (if equipped)
Pwr wnd circuit breaker 34 25a
Rear auxiliary hvac control assembly
Rr blower fuse 13 30a
S247
Tan
To s302 (diagram 6 of 6)
To s412 (diagram 6 of 6)
Traction control switch
Underhood fuse block
W/ active handling
W/ auxiliary hvac
W/ rear auxiliary control
W/ rear auxiliary hvac
W/o active handling
W/o rear auxiliary control
Wnd rap relay

Power Distribution Wiring Diagram (6 of 6) for Chevrolet Chevy Express H2005 1500

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List of elements for Power Distribution Wiring Diagram (6 of 6) for Chevrolet Chevy Express H2005 1500:

(in prp/uf2 harness, 7 cm from breakout for rear fuse block) s312
(in prp/uf2 harness, approx 8 cm from rear fuse block) s303
(in rear hvac harness, approx 20 cm from auxiliary blower motor connector breakout) s412
(or red)
(provisional)
Auxiliary high speed blower motor relay
Auxiliary low speed blower motor relay
Auxiliary med speed blower motor relay
C321
C409
Dome fluorescent work lamp relay
Dome fluorescent work lamps fuse 2 10a
From body fuse block (auxiliary 1 fuse 32) (diagram 5 of 6)
From body fuse block (rr blower fuse 13) (diagram 5 of 6)
Left side front access panel relay 5
Left side rear access panel relay 1
Panel actuator fuse 3 15a
Rear fuse block (on left "b" pillar)
Red
Red (in prp/uf2 harness, approx 15 cm from rear fuse block) s302
Right side access panel relay 6
W/ auxiliary hvac
W/ commercial option
W/o auxiliary hvac
W/o commercial option

POWER DOOR LOCKS

Power Door Locks Wiring Diagram for Chevrolet Chevy Express H2005 1500

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List of elements for Power Door Locks Wiring Diagram for Chevrolet Chevy Express H2005 1500:

(hinged door)
(sliding door)
A10
A11
B10
B12
Battery b+
Body control module (behind lower right side of dash)
Body fuse block (under left front seat)
C12
Cargo door latch assembly
Cargo unlk fuse 5 10a
Cargo unlk relay
D12
Door lks fuse 15 20a
Door lks relay
Door lock ctrl
Driver door latch assembly
Driver door lock switch
Drv lks fuse 7 10a
Drv unlk relay
E10
E12
Front passenger door latch assembly
Front passenger door lock switch
G302 (behind left kick panel)
G303 (behind left kick panel)
G347 (bottom of left "b" pillar)
G402 (top of left "d" pillar)
Ground
Hot at all times
Instrument panel cluster
Left door contact plate (left "b" pillar)
Left rear door latch assembly
Pass unlk relay
Pnk
Rear cargo door lock switch
Release rly ctrl
Remote control door lock receiver (behind center of dash)
Rfa fuse 20 10a
Right door contact plate (right "b" pillar)
Right rear door latch assembly
S500
S600
Serial data
Splice pack sp200 (dash harn, 10 cm from underhood pass-through grommet)
Splice pack sp347
Sw lock ctrl
Sw unlock ctrl
Tan
Underhood fuse block (left side of engine compt)
Unlock ctrl
Unlock rly ctrl

POWER MIRRORS

Automatic Day/Night Mirror Wiring Diagram for Chevrolet Chevy Express H2005 1500

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List of elements for Automatic Day/Night Mirror Wiring Diagram for Chevrolet Chevy Express H2005 1500:

(behind front grille, on radiator support) ambient air temperature sensor
Amb air temp sens sig
Backup lamp pwr
Body control module (behind right side of dash)
Exterior lights system
G304 (behind right kick panel)
Ground
Hot in run and start
Ign 1 vlt
Inside rearview mirror
Isrv fuse 26 10a
Logic
Low ref
Pnk
S249
Underhood fuse block
Underhood fuse block (on left side of engine compt)

Power Mirrors Wiring Diagram for Chevrolet Chevy Express H2005 1500

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List of elements for Power Mirrors Wiring Diagram for Chevrolet Chevy Express H2005 1500:

(bottom of left "b" pillar) g347
(left front door harn, 16 cm from driver's outside rearview mirror connector)
Body fuse block (under left front seat)
Driver
Driver outside rearview mirror
Hot at all times
Osrvm fuse 2 10a
Outside rearview mirror switch
Passenger
Passenger outside rearview mirror
Right/ left motor
S500
S502
Up/ down motor

POWER SEATS

Power Seats Wiring Diagram for Chevrolet Chevy Express H2005 1500

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List of elements for Power Seats Wiring Diagram for Chevrolet Chevy Express H2005 1500:

All- down
All-up
Back
Body fuse block (under left front seat)
C1 a12
C2 b5
C2 f12
Down
Driver seat adjuster switch
Driver seat motors
E12 c2
Entire seat
For- ward
Front down
Front passenger seat adjuster switch
Front passenger seat motors
Front up
Front vertical
G347 (on bottom of left "b" pillar)
Horizontal
Hot at all times
Nca
Pwr seat circuit breaker 60 30a
Rear down
Rear up
Rear vertical
Right power seat forward/ rearward motor
Right power seat front tilt motor
Right power seat rear tilt motor
S304
Splice pack
Underhood fuse block

POWER WINDOWS

Power Windows Wiring Diagram for Chevrolet Chevy Express H2005 1500

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List of elements for Power Windows Wiring Diagram for Chevrolet Chevy Express H2005 1500:

Body control module (lower right side of dash)
Body fuse block (on lower left kick panel)
Driver window motor
Driver window switch
E11
F11
G302 (behind left kick panel)
G347 (on bottom of left "b" pillar)
Hot at all times
Interior lights system
Left
Passenger window motor
Passenger window switch
Pwr wnd circuit breaker 34 25a
Right
S247
S500
S600
Splice pack sp347
Tan
Wnd rap relay

RADIO

Radio Wiring Diagram, with Rear Seat Audio for Chevrolet Chevy Express H2005 1500

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List of elements for Radio Wiring Diagram, with Rear Seat Audio for Chevrolet Chevy Express H2005 1500:

(in body harn,
(in body harn, 10 cm from c415 breakout)
(in body harn, 46 cm from c417 breakout)
(in body harn, 52 cm from c417 breakout)
10 cm from chmsl
A10
A11
A12
Antenna
Antenna in
B10
B11
B12 b12 b12 b12
Battery
Cell phone ref
Cell phone sig
Class 2 data
Computer data lines system
Conn breakout)
D10 c2
Dash lmp dim cntrl
G303 (behind left kick panel)
Ground
Hot at all times
Interior lights system
Left front door speaker
Left rear door speaker
Left rear speaker
Lf speaker (+)
Lf speaker (-)
Lr mid spk out +
Lr mid spk out -
Lr speaker (+)
Lr speaker (-)
Nca
Radio
Radio bat fuse 1 15a
Rear seat audio control
Rem radio cntrl sig
Rem radio sig
Rem radio sup volt
Remote rad volt
Rf speaker (+)
Rf speaker (-)
Right front door speaker
Right rear door speaker
Right rear speaker
Rr mid spk out +
Rr mid spk out -
Rr speaker (+)
Rr speaker (-)
Rsa enable signal
Rsa switch
S450
S451
S452
S453
Tan
Underhood fuse block (on left side of engine compartment)
Vehicle communication interface module
Voice low ref
Voice signal

Radio Wiring Diagram, without Rear Seat Audio for Chevrolet Chevy Express H2005 1500

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List of elements for Radio Wiring Diagram, without Rear Seat Audio for Chevrolet Chevy Express H2005 1500:

(in body harn, 10 cm from c415 breakout)
(in body harn, 10 cm from chmsl conn breakout)
(in body harn, 46 cm from c417 breakout)
(in body harn, 52 cm from c417 breakout)
A10
A11
A12
Antenna
Antenna in
B10
B11
B12 b12 b12 b12
Battery
C320
C415
Cell phone ref
Cell phone sig
Class 2 data
Computer data lines system
Cutaway, upfitter (late production)
D not used
D10 c2
G303 (behind left kick panel)
Ground
Hot at all times
Left front door speaker
Left rear door speaker
Left rear speaker
Lf speaker (+)
Lf speaker (-)
Lr speaker (+)
Lr speaker (-)
Nca
Passenger/ cargo
Radio
Radio bat fuse 1 15a
Rf speaker (+)
Rf speaker (-)
Right front door speaker
Right rear door speaker
Right rear speaker
Rr speaker (+)
Rr speaker (-)
S450
S451
S452
S453
Tan
Underhood fuse block
Vehicle communication interface module
Voice low ref
Voice signal

SHIFT INTERLOCK

Shift Interlock Wiring Diagram for Chevrolet Chevy Express H2005 1500

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List of elements for Shift Interlock Wiring Diagram for Chevrolet Chevy Express H2005 1500:

A/t shift lock control solenoid (right side of steering column)
Btsi fuse 28 10a
Btsi/bu fuse 36 15a
G302 (behind left kick panel)
Hot in run or start
Park/ neutral position switch (on left side of transmission)
Pnk
S264
Stoplamp switch (above brake pedal)
Underhood fuse block (left side of engine compt)

STARTING/CHARGING

Charging Wiring Diagram for Chevrolet Chevy Express H2005 1500

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List of elements for Charging Wiring Diagram for Chevrolet Chevy Express H2005 1500:

(not used)
(on lower right front of eng)
(on right front frame rail, in eng compt)
(on right front of eng compt) g106
Battery
Battery ind
Class 2 serial data
E12
Fusible link c
G104
G105
Generator
Generator field duty cycle sig
Generator turn on sig c2
Hot in run & start
Ign e fuse 22 10a
Ign volt
Instrument panel cluster
Logic
Pnk
Power distribution system
Powertrain control module (pcm) (in eng compt, on left inner fender)
Red
Sp200 (in dash wiring harn, 10 cm from underhood pass-through grommet breakout)
Starting/charging system (starter motor)
Underhood fuse block (on left side of eng compt)

Starting Wiring Diagram for Chevrolet Chevy Express H2005 1500

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List of elements for Starting Wiring Diagram for Chevrolet Chevy Express H2005 1500:

(on lower right front of eng)
(on right front frame rail, in eng compt)
(on right front of eng compt)
Acc
C1 b10
C1 c1
C2 a3
C2 e3
Crank fuse 27 10a
Crank sign
Fusible link b
G104
G105
G106
Generator
Hot at all times
Ign 1 fuse 23 15a
Ign a fuse 49 40a
Ign b fuse 52 40a
Ignition switch
Left battery
Lock
Off
Park/neutral position switch (on left side of transmission)
Pnk
Power distribution system
Powertrain control module (pcm) (in eng compt, on left inner fender)
Red
Run
Run off
Start
Starter enable relay ctrl
Starter motor
Starter relay 61
Underhood fuse block (on left side of eng compt)

SUPPLEMENTAL RESTRAINTS

Supplemental Restraints Wiring Diagram (1 of 2) for Chevrolet Chevy Express H2005 1500

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List of elements for Supplemental Restraints Wiring Diagram (1 of 2) for Chevrolet Chevy Express H2005 1500:

(behind left kick panel) g301
(not used)
Class 2 serial data signal
Control
Exterior lights system
Ground
Heavy duty
High control
Hot in run or start
I/p lamps dimming control
I/p module disable switch signal
I/p module suppression indicator control
Ignition 1 volt
Ignition 1 voltage
Inflatable restraint i/p module
Inflatable restraint i/p module (light duty)
Inflatable restraint i/p module disable switch
Inflatable restraint sensing/diagnostic module (under left front seat)
Inflatable restraint steering wheel module
Inflatable restraint steering wheel module (light duty)
Inflatable restraint steering wheel module coil
Interior lights system
Light duty
Logic
Low control
Low reference
Nca
Off
Pnk
Shorting bar
Signal
Sir fuse 37 10a
Stage 1
Stage 2
Tan
Twisted pair wires
Underhood fuse block (on left side of eng compt)

Supplemental Restraints Wiring Diagram (2 of 2) for Chevrolet Chevy Express H2005 1500

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List of elements for Supplemental Restraints Wiring Diagram (2 of 2) for Chevrolet Chevy Express H2005 1500:

(under left side of dash) data link connector
Air bag
Class 2 (sdm)
Class 2 serial data
G347 (left side of passenger compt, lower "b" pillar)
Ign
Inflatable restraint front end sensor (on lower center of radiator support)
Instrument panel cluster
Left inflatable restraint seat position switch (on left seat track)
Left seat belt switch (closed with seat belt buckled) (in left front seat belt latch)
Light duty
Nca
Pnk
Right inflatable restraint seat position switch (on right seat track)
S313 (in body harn, 11 cm from c307)
Splice pack sp 347
Splice pack sp200 (in dash wiring harn, 10 cm from underhood pass-through grommet breakout)
Twisted pair wires

TRANSMISSION

A/T Wiring Diagram (1 of 2) for Chevrolet Chevy Express H2005 1500

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List of elements for A/T Wiring Diagram (1 of 2) for Chevrolet Chevy Express H2005 1500:

(behind lower right side of dash) body control module
(left side of transmission) park/neutral position switch
(not used)
(under left side of dash) data link connector
+5v
1-2 ss ctrl
2-3 ss ctrl
3-2 ss ctrl
A10
At iss high sig
At iss low sig
Automatic transmission input shaft speed sensor (4l80e/4l85e) (on left side of transmission)
B11
B12
Brk sw sig
Cls 2 data
Ect sig
Engine coolant temperature sensor (on left side of engine)
Front high sig
Front low sig
G102 (left rear of engine)
G103 (right rear of engine)
G302 (behind left kick panel)
Gnd
Hot at all times
Hot in accy, run & start
Hot in run & start
Ign
Ign 0 fuse 6 10a
Instrument panel cluster
Pc sol hi ctrl
Pc sol lo ctrl
Pcm batt fuse 2 20a
Pcm ign 1 fuse 38 15a
Pnk
Powertrain control module (in engine compt, on left inner fender)
Press sens sig
Prnd a sig
Prnd b sig
Prnd c sig
Prnd p sig
Prndl indicator
Range b
Range c
Ref low
S101
S102
S247
Serial data
Sp200 (in dash wiring harn, 10cm from underhood pass- through grommet breakout)
Tan
Tcc pwm ctrl
Tcc sol ctrl
Tft sens sig
Throttle position sensor (on left side of throttle body)
Tow/ haul switch
Tow/haul indicator
Tow/haul switch
Tp sens sig
Under- hood fuse block
Vehicle speed sensor (4l60e/4l65e) (on right side of transmission)
Vehicle speed sensor (4l80e/4l85e) (on left side of transmission)

A/T Wiring Diagram (2 of 2) for Chevrolet Chevy Express H2005 1500

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List of elements for A/T Wiring Diagram (2 of 2) for Chevrolet Chevy Express H2005 1500:

(4l60e/
1-2 sol
2-3 sol
3-2 sol
A red
A red 4l65e)
A/t fluid pressure manual valve position switch
Automatic transmission
C12
Hot in run & start
Ign e fuse 22 10a
M tan
N pnk
Pc sol valve
Pnk
Red
Rev
S (4l60e/4l65e)
Stop- lamp switch (above brake pedal)
Tan
Tcc pwm sol
Tcc sol
Tft sensor
Underhood fuse block

TRUNK, TAILGATE, FUEL DOOR

Access Panel Release Wiring Diagram for Chevrolet Chevy Express H2005 1500

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List of elements for Access Panel Release Wiring Diagram for Chevrolet Chevy Express H2005 1500:

Access panel actuator left front side front (behind left front access panel)
Access panel actuator left front side rear (behind left front access panel)
Access panel actuator left rear side front (behind left rear access panel)
Access panel actuator left rear side rear (behind left rear access panel)
Access panel actuator right side front (behind right front access panel)
Access panel actuator right side rear (behind right rear access panel)
Access panel left side front relay control
Access panel left side rear relay control
Access panel relay left side front relay 5
Access panel relay left side rear relay 1
Access panel relay right side rear relay 6
Access panel right side rear relay control
Body control module (behind lower right side of dash)
G403 (in center of left "d" pillar)
Hot at all times
Panel actuator fuse 3 15 a
Pnk
Rear fuse block (left "b" pillar)
S300
S303
S309 (in prp/uf2 harness, between left side front access panel actuators)
S408 (in prp/uf2 harness, between left side rear access panel actuators)
S409 (in prp/uf2 harness, 88 cm from right dome work lamp connector breakout)
Tan

WARNING SYSTEMS

Warning Systems Wiring Diagram for Chevrolet Chevy Express H2005 1500

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List of elements for Warning Systems Wiring Diagram for Chevrolet Chevy Express H2005 1500:

(behind left kick panel) g302
(behind left kick panel) g303
A (w/o pwr driver seat) (w/ pwr driver seat)
A10
A11
A12
B10
B11
B12
Battery
Body control module (bcm) (behind lower right side of dash)
Brake ind
Brake warn ind ctrl
Chime module (behind center of dash)
Class 2 (ebcm)
Class 2 (sdm)
Class 2 serial data
Connector (dlc) (partial) (under left side of dash)
D10
Data link
Exterior lights system
G347 (bottom of left "b" pillar)
Ground
Headlamp & panel dimmer switch
Headlamps on signal
Hot at all times
Ign
Ignition key alarm switch (inside top of steering column)
Inflatable restraint sensing & diagnostic module (sdm) (under left front seat)
Instrument panel cluster (ipc)
Key in switch signal
Left front seat belt switch
Left seat belt switch signal
Left turn signal
Logic
Optional
Park brake sw signal
Park brake switch (under left side of dash)
Power brake (p/b) booster fluid flow alarm switch (near power steering pump, in outlet hose)
Power brake (p/b) booster fluid pressure alarm switch (near power brake booster, in booster inlet hose)
Radio
Radio bat fuse 1 15a
Right turn signal
S247
S248
S264
S304 (w/ pwr driver seat)
Seat belt ind
Serial data
Sp200 (in dash wiring harness, 10 cm from underhood pass-through grommet breakout)
Sp347
Tan
Underhood fuse block (on left side of engine compartment)
W/ radio
W/o radio

WIPER/WASHER

Wiper/Washer Wiring Diagram for Chevrolet Chevy Express H2005 1500

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List of elements for Wiper/Washer Wiring Diagram for Chevrolet Chevy Express H2005 1500:

Accessory voltage
C10
Fr wiper fuse 47 25a
G302 (behind left kick panel)
Ground
Hot at all times
Hot in run and acc
Lsd
Mist
Off
Pnk
Pulse
S247
S264
Turn signal multi- function switch
Underhood fuse block (on left side of engine compt)
Wash
Windshield washer fluid pump (on left front of eng compt, at washer reservoir)
Windshield washer relay cntrl
Windshield wiper high signal
Windshield wiper motor (on left side of firewall)
Windshield wiper switch signal
Windshield wiper/ washer switch
Wpr fuse 41 15a
Wpr relay 53