All Wiring Diagrams for Chevrolet Chevy Express G2002 2500 model

AIR CONDITIONING

4.3L

4.3L VIN W, Compressor Wiring Diagram for Chevrolet Chevy Express G2002 2500

List of elements for 4.3L VIN W, Compressor Wiring Diagram for Chevrolet Chevy Express G2002 2500:

• (4.3l: generator bracket, 5.0l, 5.7l: rear of right cylinder head, 8.1l: rear of left cylinder head)
• (in engine harness)
• A/c
• A/c compressor clutch
• A/c compressor clutch relay (in underhood fuse block)
• A/c compressor fuse 10a
• A/c high pressure switch (rear of a/c compressor)
• A/c low pressure switch (in refrigerant line)
• Bi-lev
• Blend
• Clutch rly ctrl
• Defrost
• Diode (in underhood fuse block)
• G103
• G201 (behind left kick panel)
• Heat
• Hot at all times
• Hot in run
• Hot in run or start
• Htr-a/c fuse 12 20a
• Hvac control assembly
• I/p fuse block (lower left kick panel)
• Ign e fuse 10a
• Low press sig
• Max
• Off
• Pnk
• Powertrain control module (pcm) (on left front inner fender)
• Request sig
• S202 (i/p harn, 7 cm into i/p relay center breakout)
• S215 (dash harn, 4 cm from radio breakout)
• Underhood fuse block (left side of engine compt)
• Vent

4.3L VIN W, Heater Wiring Diagram for Chevrolet Chevy Express G2002 2500

List of elements for 4.3L VIN W, Heater Wiring Diagram for Chevrolet Chevy Express G2002 2500:

• (auxiliary) (if equipped) (left rear of cabin, behind rear wheelwell)
• (if equipped) (left rear of cabin, behind rear wheelwell)
• (left body harn, near chmsl) s400
• (rear a/c harn, 13 cm from blower motor relay breakout)
• (rear a/c harn, 7 cm from blower motor breakout)
• (rear a/c harn, 7 cm from rear blower motor resistor breakout)
• Air temperature actuator (under dash, right side of hvac plenum)
• Assembly (if equipped) (left rear of cabin, behind rear wheelwell)
• Auxiliary blower motor
• Auxiliary blower motor resistor
• Auxiliary blower motor switch (if equipped)
• Blend
• Blower fuse 60a
• Blower motor (right rear of engine compt)
• Blower motor resistor assembly (right rear of engine compt, in blower motor housing)
• C2 f
• C202
• Convenience center
• Def
• G103 (4.3l, 6.5l: generator bracket, 5.0l, 5.7l: rear of right cylinder head, 8.1l: rear of left cylinder head)
• G201 (behind left kick panel)
• G400 (left rear of vehicle)
• Heat
• High speed blower motor relay
• Hot at all times
• Hot in run
• Hot in run or start
• Htr-a/c fuse 12 20a
• Hvac control assembly
• I/p fuse block (lower left kick panel)
• Interior lights system
• Low speed blower motor relay
• Med
• Medium speed blower motor relay
• Off
• Red
• Rr blower fuse 30a
• Rr hvac fuse 24 10a
• S152 (gas) s101 (diesel) (in engine harness)
• S202 (dash harn, in i/p relay center)
• S215 (dash harn, 4 cm from hvac switch)
• S405
• S412
• S413
• Tan
• Underhood fuse block (left side of engine compt)
• Vent

4.3L VIN W, Manual A/C Wiring Diagram, Cargo Van for Chevrolet Chevy Express G2002 2500

List of elements for 4.3L VIN W, Manual A/C Wiring Diagram, Cargo Van for Chevrolet Chevy Express G2002 2500:

• (4.3l: gen bracket, 5.0l, 5.7l: rear of rt cyl head, 8.1l: rear of lft cyl head) g103
• (if equipped) (left rear of cabin, behind rear wheelwell)
• (in refrigerant line) a/c low pressure switch
• (left body harn, 22 cm from front dome lamp breakout)
• (left body harn, near chmsl breakout) s400
• (left rear of cabin, behind rear wheelwell)
• (rear a/c harn, 7 cm from blower mtr resistor breakout) s405
• (under dash, right
• A/c
• A/c compressor clutch
• A/c compressor clutch relay (in underhood fuse block)
• A/c fuse 10a
• A/c high pressure switch (rear of a/c compressor)
• Air temperature actuator (auxiliary) (left rear interior)
• Auxiliary blower motor
• Auxiliary blower motor resistor
• Bi-lev
• Blend
• Blower fuse 60a
• Blower motor (right rear of engine compt)
• Blower motor resistor assembly (right rear of engine compt, in blower motor housing)
• C1 c
• C202
• C3 d3
• Clutch rly ctrl c2
• Convenience center
• D3 c3
• Def
• Diode (in underhood fuse block)
• G103 (4.3l generator bracket, 5.0l, 5.7l: rear of rt cylinder head, 8.1l: rear of left cylinder head)
• G201 (behind left kick panel)
• G400 (left rear of vehicle)
• Heat
• High speed blower motor relay (auxiliary) (if equipped)
• Hot at all times
• Hot in run
• Hot in run or start
• Htr-a/c fuse 12 20a
• Hvac control assembly
• Hvac control assembly (front auxiliary) (if equipped)
• I/p fuse block (lower left kick panel)
• Ign e fuse 10a
• Interior lights system
• Low press sig
• Low speed blower motor relay (auxiliary) (if equipped)
• Max
• Med
• Medium speed blower motor relay (auxiliary) (if equipped)
• Mode actuator (auxiliary) (left rear interior)
• Off
• Pnk
• Powertrain control module (pcm) (on left front inner fender)
• Red
• Request sig
• Rr blower fuse 30a
• Rr hvac fuse 24 10a
• S103 (in engine harn)
• S103 (in engine harness)
• S152 (in engine harness)
• S202
• S202 (dash harn, in i/p relay center)
• S404
• S411 (rear a/c harn, 5 cm from o/s air valve actuator breakout)
• S412 (rear a/c harn, 13 cm from blower motor relay breakout)
• S413 (rear a/c harn, 7 cm from rear blower motor resistor breakout)
• Side of hvac plenum) air temperature actuator
• Tan
• Temp
• Underhood fuse block (left side of engine compt)
• Vent
• Vent mode

4.3L VIN W, Manual A/C Wiring Diagram, Passenger Van for Chevrolet Chevy Express G2002 2500

List of elements for 4.3L VIN W, Manual A/C Wiring Diagram, Passenger Van for Chevrolet Chevy Express G2002 2500:

• (4.3l: gen bracket, 5.0l, 5.7l: rear of rt cyl head, 8.1l: rear of lft cyl head) g103
• (aux hvac harn, 13 cm from front hvac module breakout)
• (aux hvac harn, 13 cm from rear hvac module breakout)
• (aux hvac harn, 37 cm from front hvac module breakout)
• (aux hvac harn, 56 cm from front hvac module breakout)
• (dash harn, 4 cm from hvac switch) s215
• (in engine harness)
• (in refrigerant line) a/c low pressure switch
• (left body harn, 22 cm from front dome lamp breakout)
• (left rear of cabin, behind rear wheelwell)
• (left rear of vehicle) g402
• (rear a/c harn, 13 cm from blower motor relay breakout)
• (rear a/c harn, 5 cm from o/s air valve actuator breakout)
• (rear a/c harn, 7 cm from rear blower resistor breakout)
• (rear aux hvac harn, 29 cm from rear aux hvac module breakout)
• (under dash right
• A/c
• A/c compressor clutch
• A/c compressor enable relay (in underhood fuse block)
• A/c fuse 10a
• A/c high pressure switch (rear of a/c compressor)
• Auxiliary blower motor (behind left rear wheelhouse)
• Auxiliary blower motor resistor assembly (left rear of cabin, behind rear wheelwell)
• Bi-lev
• Blend
• Blower fuse 60a
• Blower motor (right rear of engine compt)
• Blower motor resistor assembly (right rear of engine compt, in blower motor housing)
• C1 c
• C202
• Clutch rly ctrl
• Convenience center
• Def
• Diode (in underhood fuse block)
• G103 (4.3l generator bracket, 5.0l, 5.7l: rear of rt cylinder head, 8.1l: rear of left cylinder head)
• G201 (behind left kick panel)
• Heat
• High speed blower motor relay (auxiliary)
• Hot at all times
• Hot in run
• Hot in run or start
• Htr-a/c fuse 12 20a
• Hvac control assembly
• Hvac control assembly (front auxiliary)
• Hvac control assembly (rear auxiliary)
• Hvac control processor auxiliary) (front interior roof panel)
• I/p fuse block (lower left kick panel)
• Ign e fuse 10a
• Interior lights system
• Low press sig
• Low speed blower motor relay (auxiliary)
• Max
• Med
• Medium speed blower motor relay (auxiliary)
• Off
• Pnk
• Powertrain control module (pcm) (on left front inner fender)
• Rear auxiliary mode actuator (left rear interior)
• Rear auxiliary temperature actuator (left rear interior)
• Red
• Request sig
• Rr blower fuse 30a
• Rr ctrl
• Rr hvac fuse 24 10a
• S103
• S103 (in engine harn)
• S152 (in engine harness)
• S202 (dash harn, in i/p relay center)
• S307
• S318
• S319
• S320
• S321
• S404
• S405 (rear a/c harn, 7 cm from blower resistor breakout)
• S412
• S413
• Side of hvac plenum) air temperature actuator
• Tan
• Temp
• Under- hood fuse block
• Underhood fuse block (left side of engine compt)
• Vent
• Vent mode

5.0L

5.0L VIN M, Compressor Wiring Diagram for Chevrolet Chevy Express G2002 2500

List of elements for 5.0L VIN M, Compressor Wiring Diagram for Chevrolet Chevy Express G2002 2500:

• (4.3l: generator bracket, 5.0l, 5.7l: rear of right cylinder head, 8.1l: rear of left cylinder head)
• (in engine harness)
• A/c
• A/c compressor clutch
• A/c compressor clutch relay (in underhood fuse block)
• A/c compressor fuse 10a
• A/c high pressure switch (rear of a/c compressor)
• A/c low pressure switch (in refrigerant line)
• Bi-lev
• Blend
• Clutch rly ctrl
• Defrost
• Diode (in underhood fuse block)
• G103
• G201 (behind left kick panel)
• Heat
• Hot at all times
• Hot in run
• Hot in run or start
• Htr-a/c fuse 12 20a
• Hvac control assembly
• I/p fuse block (lower left kick panel)
• Ign e fuse 10a
• Low press sig
• Max
• Off
• Pnk
• Powertrain control module (pcm) (on left front inner fender)
• Request sig
• S202 (i/p harn, 7 cm into i/p relay center breakout)
• S215 (dash harn, 4 cm from radio breakout)
• Underhood fuse block (left side of engine compt)
• Vent

5.0L VIN M, Heater Wiring Diagram for Chevrolet Chevy Express G2002 2500

List of elements for 5.0L VIN M, Heater Wiring Diagram for Chevrolet Chevy Express G2002 2500:

• (auxiliary) (if equipped) (left rear of cabin, behind rear wheelwell)
• (if equipped) (left rear of cabin, behind rear wheelwell)
• (left body harn, near chmsl) s400
• (rear a/c harn, 13 cm from blower motor relay breakout)
• (rear a/c harn, 7 cm from blower motor breakout)
• (rear a/c harn, 7 cm from rear blower motor resistor breakout)
• Air temperature actuator (under dash, right side of hvac plenum)
• Assembly (if equipped) (left rear of cabin, behind rear wheelwell)
• Auxiliary blower motor
• Auxiliary blower motor resistor
• Auxiliary blower motor switch (if equipped)
• Blend
• Blower fuse 60a
• Blower motor (right rear of engine compt)
• Blower motor resistor assembly (right rear of engine compt, in blower motor housing)
• C2 f
• C202
• Convenience center
• Def
• G103 (4.3l, 6.5l: generator bracket, 5.0l, 5.7l: rear of right cylinder head, 8.1l: rear of left cylinder head)
• G201 (behind left kick panel)
• G400 (left rear of vehicle)
• Heat
• High speed blower motor relay
• Hot at all times
• Hot in run
• Hot in run or start
• Htr-a/c fuse 12 20a
• Hvac control assembly
• I/p fuse block (lower left kick panel)
• Interior lights system
• Low speed blower motor relay
• Med
• Medium speed blower motor relay
• Off
• Red
• Rr blower fuse 30a
• Rr hvac fuse 24 10a
• S152 (gas) s101 (diesel) (in engine harness)
• S202 (dash harn, in i/p relay center)
• S215 (dash harn, 4 cm from hvac switch)
• S405
• S412
• S413
• Tan
• Underhood fuse block (left side of engine compt)
• Vent

5.0L VIN M, Manual A/C Wiring Diagram, Cargo Van for Chevrolet Chevy Express G2002 2500

List of elements for 5.0L VIN M, Manual A/C Wiring Diagram, Cargo Van for Chevrolet Chevy Express G2002 2500:

• (4.3l: gen bracket, 5.0l, 5.7l: rear of rt cyl head, 8.1l: rear of lft cyl head) g103
• (if equipped) (left rear of cabin, behind rear wheelwell)
• (in refrigerant line) a/c low pressure switch
• (left body harn, 22 cm from front dome lamp breakout)
• (left body harn, near chmsl breakout) s400
• (left rear of cabin, behind rear wheelwell)
• (rear a/c harn, 7 cm from blower mtr resistor breakout) s405
• (under dash, right
• A/c
• A/c compressor clutch
• A/c compressor clutch relay (in underhood fuse block)
• A/c fuse 10a
• A/c high pressure switch (rear of a/c compressor)
• Air temperature actuator (auxiliary) (left rear interior)
• Auxiliary blower motor
• Auxiliary blower motor resistor
• Bi-lev
• Blend
• Blower fuse 60a
• Blower motor (right rear of engine compt)
• Blower motor resistor assembly (right rear of engine compt, in blower motor housing)
• C1 c
• C202
• C3 d3
• Clutch rly ctrl c2
• Convenience center
• D3 c3
• Def
• Diode (in underhood fuse block)
• G103 (4.3l generator bracket, 5.0l, 5.7l: rear of rt cylinder head, 8.1l: rear of left cylinder head)
• G201 (behind left kick panel)
• G400 (left rear of vehicle)
• Heat
• High speed blower motor relay (auxiliary) (if equipped)
• Hot at all times
• Hot in run
• Hot in run or start
• Htr-a/c fuse 12 20a
• Hvac control assembly
• Hvac control assembly (front auxiliary) (if equipped)
• I/p fuse block (lower left kick panel)
• Ign e fuse 10a
• Interior lights system
• Low press sig
• Low speed blower motor relay (auxiliary) (if equipped)
• Max
• Med
• Medium speed blower motor relay (auxiliary) (if equipped)
• Mode actuator (auxiliary) (left rear interior)
• Off
• Pnk
• Powertrain control module (pcm) (on left front inner fender)
• Red
• Request sig
• Rr blower fuse 30a
• Rr hvac fuse 24 10a
• S103 (in engine harn)
• S103 (in engine harness)
• S152 (in engine harness)
• S202
• S202 (dash harn, in i/p relay center)
• S404
• S411 (rear a/c harn, 5 cm from o/s air valve actuator breakout)
• S412 (rear a/c harn, 13 cm from blower motor relay breakout)
• S413 (rear a/c harn, 7 cm from rear blower motor resistor breakout)
• Side of hvac plenum) air temperature actuator
• Tan
• Temp
• Underhood fuse block (left side of engine compt)
• Vent
• Vent mode

5.0L VIN M, Manual A/C Wiring Diagram, Passenger Van for Chevrolet Chevy Express G2002 2500

List of elements for 5.0L VIN M, Manual A/C Wiring Diagram, Passenger Van for Chevrolet Chevy Express G2002 2500:

• (4.3l: gen bracket, 5.0l, 5.7l: rear of rt cyl head, 8.1l: rear of lft cyl head) g103
• (aux hvac harn, 13 cm from front hvac module breakout)
• (aux hvac harn, 13 cm from rear hvac module breakout)
• (aux hvac harn, 37 cm from front hvac module breakout)
• (aux hvac harn, 56 cm from front hvac module breakout)
• (dash harn, 4 cm from hvac switch) s215
• (in engine harness)
• (in refrigerant line) a/c low pressure switch
• (left body harn, 22 cm from front dome lamp breakout)
• (left rear of cabin, behind rear wheelwell)
• (left rear of vehicle) g402
• (rear a/c harn, 13 cm from blower motor relay breakout)
• (rear a/c harn, 5 cm from o/s air valve actuator breakout)
• (rear a/c harn, 7 cm from rear blower resistor breakout)
• (rear aux hvac harn, 29 cm from rear aux hvac module breakout)
• (under dash right
• A/c
• A/c compressor clutch
• A/c compressor enable relay (in underhood fuse block)
• A/c fuse 10a
• A/c high pressure switch (rear of a/c compressor)
• Auxiliary blower motor (behind left rear wheelhouse)
• Auxiliary blower motor resistor assembly (left rear of cabin, behind rear wheelwell)
• Bi-lev
• Blend
• Blower fuse 60a
• Blower motor (right rear of engine compt)
• Blower motor resistor assembly (right rear of engine compt, in blower motor housing)
• C1 c
• C202
• Clutch rly ctrl
• Convenience center
• Def
• Diode (in underhood fuse block)
• G103 (4.3l generator bracket, 5.0l, 5.7l: rear of rt cylinder head, 8.1l: rear of left cylinder head)
• G201 (behind left kick panel)
• Heat
• High speed blower motor relay (auxiliary)
• Hot at all times
• Hot in run
• Hot in run or start
• Htr-a/c fuse 12 20a
• Hvac control assembly
• Hvac control assembly (front auxiliary)
• Hvac control assembly (rear auxiliary)
• Hvac control processor auxiliary) (front interior roof panel)
• I/p fuse block (lower left kick panel)
• Ign e fuse 10a
• Interior lights system
• Low press sig
• Low speed blower motor relay (auxiliary)
• Max
• Med
• Medium speed blower motor relay (auxiliary)
• Off
• Pnk
• Powertrain control module (pcm) (on left front inner fender)
• Rear auxiliary mode actuator (left rear interior)
• Rear auxiliary temperature actuator (left rear interior)
• Red
• Request sig
• Rr blower fuse 30a
• Rr ctrl
• Rr hvac fuse 24 10a
• S103
• S103 (in engine harn)
• S152 (in engine harness)
• S202 (dash harn, in i/p relay center)
• S307
• S318
• S319
• S320
• S321
• S404
• S405 (rear a/c harn, 7 cm from blower resistor breakout)
• S412
• S413
• Side of hvac plenum) air temperature actuator
• Tan
• Temp
• Under- hood fuse block
• Underhood fuse block (left side of engine compt)
• Vent
• Vent mode

5.7L

5.7L VIN R, Compressor Wiring Diagram for Chevrolet Chevy Express G2002 2500

List of elements for 5.7L VIN R, Compressor Wiring Diagram for Chevrolet Chevy Express G2002 2500:

• (4.3l: generator bracket, 5.0l, 5.7l: rear of right cylinder head, 8.1l: rear of left cylinder head)
• (in engine harness)
• A/c
• A/c compressor clutch
• A/c compressor clutch relay (in underhood fuse block)
• A/c compressor fuse 10a
• A/c high pressure switch (rear of a/c compressor)
• A/c low pressure switch (in refrigerant line)
• Bi-lev
• Blend
• Clutch rly ctrl
• Defrost
• Diode (in underhood fuse block)
• G103
• G201 (behind left kick panel)
• Heat
• Hot at all times
• Hot in run
• Hot in run or start
• Htr-a/c fuse 12 20a
• Hvac control assembly
• I/p fuse block (lower left kick panel)
• Ign e fuse 10a
• Low press sig
• Max
• Off
• Pnk
• Powertrain control module (pcm) (on left front inner fender)
• Request sig
• S202 (i/p harn, 7 cm into i/p relay center breakout)
• S215 (dash harn, 4 cm from radio breakout)
• Underhood fuse block (left side of engine compt)
• Vent

5.7L VIN R, Heater Wiring Diagram for Chevrolet Chevy Express G2002 2500

List of elements for 5.7L VIN R, Heater Wiring Diagram for Chevrolet Chevy Express G2002 2500:

• (auxiliary) (if equipped) (left rear of cabin, behind rear wheelwell)
• (if equipped) (left rear of cabin, behind rear wheelwell)
• (left body harn, near chmsl) s400
• (rear a/c harn, 13 cm from blower motor relay breakout)
• (rear a/c harn, 7 cm from blower motor breakout)
• (rear a/c harn, 7 cm from rear blower motor resistor breakout)
• Air temperature actuator (under dash, right side of hvac plenum)
• Assembly (if equipped) (left rear of cabin, behind rear wheelwell)
• Auxiliary blower motor
• Auxiliary blower motor resistor
• Auxiliary blower motor switch (if equipped)
• Blend
• Blower fuse 60a
• Blower motor (right rear of engine compt)
• Blower motor resistor assembly (right rear of engine compt, in blower motor housing)
• C2 f
• C202
• Convenience center
• Def
• G103 (4.3l, 6.5l: generator bracket, 5.0l, 5.7l: rear of right cylinder head, 8.1l: rear of left cylinder head)
• G201 (behind left kick panel)
• G400 (left rear of vehicle)
• Heat
• High speed blower motor relay
• Hot at all times
• Hot in run
• Hot in run or start
• Htr-a/c fuse 12 20a
• Hvac control assembly
• I/p fuse block (lower left kick panel)
• Interior lights system
• Low speed blower motor relay
• Med
• Medium speed blower motor relay
• Off
• Red
• Rr blower fuse 30a
• Rr hvac fuse 24 10a
• S152 (gas) s101 (diesel) (in engine harness)
• S202 (dash harn, in i/p relay center)
• S215 (dash harn, 4 cm from hvac switch)
• S405
• S412
• S413
• Tan
• Underhood fuse block (left side of engine compt)
• Vent

5.7L VIN R, Manual A/C Wiring Diagram, Cargo Van for Chevrolet Chevy Express G2002 2500

List of elements for 5.7L VIN R, Manual A/C Wiring Diagram, Cargo Van for Chevrolet Chevy Express G2002 2500:

• (4.3l: gen bracket, 5.0l, 5.7l: rear of rt cyl head, 8.1l: rear of lft cyl head) g103
• (if equipped) (left rear of cabin, behind rear wheelwell)
• (in refrigerant line) a/c low pressure switch
• (left body harn, 22 cm from front dome lamp breakout)
• (left body harn, near chmsl breakout) s400
• (left rear of cabin, behind rear wheelwell)
• (rear a/c harn, 7 cm from blower mtr resistor breakout) s405
• (under dash, right
• A/c
• A/c compressor clutch
• A/c compressor clutch relay (in underhood fuse block)
• A/c fuse 10a
• A/c high pressure switch (rear of a/c compressor)
• Air temperature actuator (auxiliary) (left rear interior)
• Auxiliary blower motor
• Auxiliary blower motor resistor
• Bi-lev
• Blend
• Blower fuse 60a
• Blower motor (right rear of engine compt)
• Blower motor resistor assembly (right rear of engine compt, in blower motor housing)
• C1 c
• C202
• C3 d3
• Clutch rly ctrl c2
• Convenience center
• D3 c3
• Def
• Diode (in underhood fuse block)
• G103 (4.3l generator bracket, 5.0l, 5.7l: rear of rt cylinder head, 8.1l: rear of left cylinder head)
• G201 (behind left kick panel)
• G400 (left rear of vehicle)
• Heat
• High speed blower motor relay (auxiliary) (if equipped)
• Hot at all times
• Hot in run
• Hot in run or start
• Htr-a/c fuse 12 20a
• Hvac control assembly
• Hvac control assembly (front auxiliary) (if equipped)
• I/p fuse block (lower left kick panel)
• Ign e fuse 10a
• Interior lights system
• Low press sig
• Low speed blower motor relay (auxiliary) (if equipped)
• Max
• Med
• Medium speed blower motor relay (auxiliary) (if equipped)
• Mode actuator (auxiliary) (left rear interior)
• Off
• Pnk
• Powertrain control module (pcm) (on left front inner fender)
• Red
• Request sig
• Rr blower fuse 30a
• Rr hvac fuse 24 10a
• S103 (in engine harn)
• S103 (in engine harness)
• S152 (in engine harness)
• S202
• S202 (dash harn, in i/p relay center)
• S404
• S411 (rear a/c harn, 5 cm from o/s air valve actuator breakout)
• S412 (rear a/c harn, 13 cm from blower motor relay breakout)
• S413 (rear a/c harn, 7 cm from rear blower motor resistor breakout)
• Side of hvac plenum) air temperature actuator
• Tan
• Temp
• Underhood fuse block (left side of engine compt)
• Vent
• Vent mode

5.7L VIN R, Manual A/C Wiring Diagram, Passenger Van for Chevrolet Chevy Express G2002 2500

List of elements for 5.7L VIN R, Manual A/C Wiring Diagram, Passenger Van for Chevrolet Chevy Express G2002 2500:

• (4.3l: gen bracket, 5.0l, 5.7l: rear of rt cyl head, 8.1l: rear of lft cyl head) g103
• (aux hvac harn, 13 cm from front hvac module breakout)
• (aux hvac harn, 13 cm from rear hvac module breakout)
• (aux hvac harn, 37 cm from front hvac module breakout)
• (aux hvac harn, 56 cm from front hvac module breakout)
• (dash harn, 4 cm from hvac switch) s215
• (in engine harness)
• (in refrigerant line) a/c low pressure switch
• (left body harn, 22 cm from front dome lamp breakout)
• (left rear of cabin, behind rear wheelwell)
• (left rear of vehicle) g402
• (rear a/c harn, 13 cm from blower motor relay breakout)
• (rear a/c harn, 5 cm from o/s air valve actuator breakout)
• (rear a/c harn, 7 cm from rear blower resistor breakout)
• (rear aux hvac harn, 29 cm from rear aux hvac module breakout)
• (under dash right
• A/c
• A/c compressor clutch
• A/c compressor enable relay (in underhood fuse block)
• A/c fuse 10a
• A/c high pressure switch (rear of a/c compressor)
• Auxiliary blower motor (behind left rear wheelhouse)
• Auxiliary blower motor resistor assembly (left rear of cabin, behind rear wheelwell)
• Bi-lev
• Blend
• Blower fuse 60a
• Blower motor (right rear of engine compt)
• Blower motor resistor assembly (right rear of engine compt, in blower motor housing)
• C1 c
• C202
• Clutch rly ctrl
• Convenience center
• Def
• Diode (in underhood fuse block)
• G103 (4.3l generator bracket, 5.0l, 5.7l: rear of rt cylinder head, 8.1l: rear of left cylinder head)
• G201 (behind left kick panel)
• Heat
• High speed blower motor relay (auxiliary)
• Hot at all times
• Hot in run
• Hot in run or start
• Htr-a/c fuse 12 20a
• Hvac control assembly
• Hvac control assembly (front auxiliary)
• Hvac control assembly (rear auxiliary)
• Hvac control processor auxiliary) (front interior roof panel)
• I/p fuse block (lower left kick panel)
• Ign e fuse 10a
• Interior lights system
• Low press sig
• Low speed blower motor relay (auxiliary)
• Max
• Med
• Medium speed blower motor relay (auxiliary)
• Off
• Pnk
• Powertrain control module (pcm) (on left front inner fender)
• Rear auxiliary mode actuator (left rear interior)
• Rear auxiliary temperature actuator (left rear interior)
• Red
• Request sig
• Rr blower fuse 30a
• Rr ctrl
• Rr hvac fuse 24 10a
• S103
• S103 (in engine harn)
• S152 (in engine harness)
• S202 (dash harn, in i/p relay center)
• S307
• S318
• S319
• S320
• S321
• S404
• S405 (rear a/c harn, 7 cm from blower resistor breakout)
• S412
• S413
• Side of hvac plenum) air temperature actuator
• Tan
• Temp
• Under- hood fuse block
• Underhood fuse block (left side of engine compt)
• Vent
• Vent mode

ANTI-LOCK BRAKES

Anti-lock Brake Wiring Diagrams for Chevrolet Chevy Express G2002 2500

List of elements for Anti-lock Brake Wiring Diagrams for Chevrolet Chevy Express G2002 2500:

• (w/o 6.5l) (w/ 6.5)
• A13
• Abs fuse 60a
• Abs ind
• Abs ind ground
• B17
• Battery
• Brake fuse 18 10a
• Brake ind
• Brake ind input
• Brake pressure differential switch (on left frame rail, near center of vehicle)
• Brake sw input
• Computer data lines system
• Data link connector (dlc) (under left side of dash)
• Diagnostic sig
• Ebcm ground
• Electronic brake control module (ebcm) (on left frame rail, near center of vehicle)
• G101 (4.3l: left side of engine compt, near fender well) (5.0l, 5.7l, 6.5l diesel: near thermostat housing) (8.1l: rear of left cyl head)
• G102 (4.3l, 5.0l, 5.7l: at generator bracket) (6.5l diesel: at a/c compressor) (8.1l: rear of left cyl head)
• G103 (4.3l: at generator bracket) (5.ol, 5.7l: rear of right cyl head) (6.5l diesel: at generator bracket) (8.1l: rear of left cyl head)
• Gauges fuse 4 10a
• Hot at all times
• Hot in run
• Hot in run or start
• I/p fuse block (on left lower kick panel)
• Ignition
• Instrument cluster
• Left front wheel speed sensor
• Pnk
• Powertrain control module (pcm) (in engine compt, on left inner fender)
• Red
• Right front wheel speed sensor
• S101
• S111 (w/ 6.5l) (3 cm from a/c compressor clutch breakout)
• S154 (w/o 6.5l) (97 cm from underhood fuse block, toward a/c compressor clutch)
• S156 (4.3l, 5.0l, 5.7l: engine harn, near fuel inj breakout) (6.5l: engine harn, near brake pressure switch breakout) (8.1l: engine harn, near vehicle speed sensor breakout)
• S171 s102
• S216
• S235 (i/p harn, near park brake warning switch breakout)
• Sensor high
• Sensor low
• Serial data
• Signal ground
• Tan
• Tcc/brake switch (behind dash, on brake pedal support)
• Underhood fuse block
• Underhood fuse block (on left side of engine compt)
• Vehicle speed sensor (vss) (on side of transmission)
• Vehicle speed sensor (vss) module (below dash, near steering column)
• Vss (+)
• Vss (-)
• Vss sig
• W/ 6.5l
• W/o 6.5l
• Warning systems

ANTI-THEFT

Anti-theft Wiring Diagram for Chevrolet Chevy Express G2002 2500

List of elements for Anti-theft Wiring Diagram for Chevrolet Chevy Express G2002 2500:

• (4.3l)
• (6.5l)
• (8.1l) (on rear of left cylinder head) g101
• (diesel only) s247 (i/p harn, 21 cm left of hvac switch breakout)
• (engine harn) s153
• (not used)
• 12v
• 4.3l
• 4.3l/ 6.5l
• 5 volt ref
• 5.0l/ 5.7l
• 5.0l/5.7l/ 8.1l
• 6.5l
• 8.1l
• B17
• C8 serial data c3
• Data link connector (under left side of dash)
• Diesel only
• Electronic brake control module (on left frame rail near center of vehicle)
• Fuel sender buffer module (below right side of dash, near knee bolster)
• G serial data c1
• G101 (front of engine, near thermostat housing) (except 8.1l)
• Gauges fuse 4 10a
• Ground
• Hot at all times
• Hot in run or start
• I/p fuse block
• Ign
• Instrument cluster system
• Instrument panel cluster
• Passlck sig
• Passlock module (below center of dash)
• Passlock sensor (internal to steering column)
• Passlock signal
• Pnk
• Powertrain control module (behind center of dash) (left side of engine compt)
• Powertrain control module engine compt) (left side of
• Ref voltage
• S216
• S246 (i/p harn, near instrument cluster) (diesel only)
• S254
• Sec ind out
• Security fuse 21 10a
• Security indicator
• Sens ret
• Sensor ground
• Serial data
• Serial data c1
• Switch breakout) s207

COMPUTER DATA LINES

Computer Data Lines for Chevrolet Chevy Express G2002 2500

List of elements for Computer Data Lines for Chevrolet Chevy Express G2002 2500:

• (4.3l, 5.0l & 5.7l)
• (8.1l)
• (on rear of left cylinder head g101
• 4.3l, 6.5l diesel only
• 4.3l, 8.1l gas
• 5.0l, 5.7l gas
• 5.0l, 5.7l gas only
• 6.5l diesel
• Abs serial data
• C210
• Convenience center (under left side of dash)
• Data link connector (dlc) (under left side of dash)
• Electronic brake control module (ebcm) (on left frame rail near center of vehicle)
• G101 (front of eng, near thermostat housing)
• G201 (behind left kick panel)
• Hot at all times
• I/p fuse block
• Inflatable restraint sensing & diagnostic module (under left front seat)
• Passlock module (below center of dash)
• Powertrain control module (pcm) (behind center of dash)
• Prog signal
• Pwr aux fuse 7 25a
• Radio
• Remote control door lock receiver (rcdlr) (behind center of dash)
• S153 (6.5l: engine harn, 26 cm from a/c compressor clutch breakout
• S201
• S218
• S254
• Serial data
• Toward the c100 breakout) (except 6.5l: engine harn, 8 cm from the

CRUISE CONTROL

4.3L

4.3L VIN W, Cruise Control Wiring Diagram for Chevrolet Chevy Express G2002 2500

List of elements for 4.3L VIN W, Cruise Control Wiring Diagram for Chevrolet Chevy Express G2002 2500:

• A12
• A13
• A14
• A15
• Anti-lock brakes system
• Auto cruise
• Brake fuse 18 10a
• Cruise control module (front of engine compt, near left fender)
• Cruise control on/off switch
• Cruise fuse 6 10a
• Cruise on input
• Exterior lights system
• G101 (front of engine near thermostat housing)
• Ground
• Hot at all times
• Hot in run
• I/p fuse block (left lower kick panel)
• Ignition
• Instrument cluster system
• Off
• Pnk
• Powertrain control module (pcm) (left side of engine compt)
• R/a
• Resume/accel sig
• S/c
• S210
• S231 (i/p harn, 24 cm into power seat breakout)
• S239 (i/p harn, 6 cm into power seat breakout)
• S253 (i/p harness, near park brake breakout)
• S254
• Set/coast sig
• Speed sensor input
• Speed signal
• Stop fuse 1 20a
• Stoplamp sw input
• Tcc/brake switch (on brake pedal support)
• Vcm signal
• Vehicle speed sensor (vss) (on side of transmission)
• Vss high
• Vss low

5.0L

5.0L VIN M, Cruise Control Wiring Diagram for Chevrolet Chevy Express G2002 2500

List of elements for 5.0L VIN M, Cruise Control Wiring Diagram for Chevrolet Chevy Express G2002 2500:

• A12
• A13
• A14
• A15
• Anti-lock brakes system
• Auto cruise
• Brake fuse 18 10a
• Cruise control module (front of engine compt, near left fender)
• Cruise control on/off switch
• Cruise fuse 6 10a
• Cruise on input
• Exterior lights system
• G101 (front of engine near thermostat housing)
• Ground
• Hot at all times
• Hot in run
• I/p fuse block (left lower kick panel)
• Ignition
• Instrument cluster system
• Off
• Pnk
• Powertrain control module (pcm) (left side of engine compt)
• R/a
• Resume/accel sig
• S/c
• S210
• S231 (i/p harn, 24 cm into power seat breakout)
• S239 (i/p harn, 6 cm into power seat breakout)
• S253 (i/p harness, near park brake breakout)
• S254
• Set/coast sig
• Speed sensor input
• Speed signal
• Stop fuse 1 20a
• Stoplamp sw input
• Tcc/brake switch (on brake pedal support)
• Vcm signal
• Vehicle speed sensor (vss) (on side of transmission)
• Vss high
• Vss low

5.7L

5.7L VIN R, Cruise Control Wiring Diagram for Chevrolet Chevy Express G2002 2500

List of elements for 5.7L VIN R, Cruise Control Wiring Diagram for Chevrolet Chevy Express G2002 2500:

• A12
• A13
• A14
• A15
• Anti-lock brakes system
• Auto cruise
• Brake fuse 18 10a
• Cruise control module (front of engine compt, near left fender)
• Cruise control on/off switch
• Cruise fuse 6 10a
• Cruise on input
• Exterior lights system
• G101 (front of engine near thermostat housing)
• Ground
• Hot at all times
• Hot in run
• I/p fuse block (left lower kick panel)
• Ignition
• Instrument cluster system
• Off
• Pnk
• Powertrain control module (pcm) (left side of engine compt)
• R/a
• Resume/accel sig
• S/c
• S210
• S231 (i/p harn, 24 cm into power seat breakout)
• S239 (i/p harn, 6 cm into power seat breakout)
• S253 (i/p harness, near park brake breakout)
• S254
• Set/coast sig
• Speed sensor input
• Speed signal
• Stop fuse 1 20a
• Stoplamp sw input
• Tcc/brake switch (on brake pedal support)
• Vcm signal
• Vehicle speed sensor (vss) (on side of transmission)
• Vss high
• Vss low

DEFOGGERS

Defogger Wiring Diagram for Chevrolet Chevy Express G2002 2500

List of elements for Defogger Wiring Diagram for Chevrolet Chevy Express G2002 2500:

• (2 in) to right of 10 pin gray in-line connector) s245
• (right rear corner of interior of cabin, "d" pillar) g401
• C210
• Convenience center (under left side of dash)
• Driver outside rear- view mirror
• Fixed glass
• Flex circuit
• G200 (behind left kick panel)
• G201 (behind left kick panel)
• Heated mirror pushbutton
• Hot at all times
• Hot in run
• Htd mir fuse 2 20a
• Htr-a/c fuse 12 20a
• Hvac control assembly
• I/p fuse block (on left lower kick panel)
• Latch
• Left rear window defogger grid
• Moving glass
• Passen- ger outside rear- view mirror)
• Rear window defogger relay (on bottom of left "b" pillar)
• Right rear window defogger grid
• Rr defog fuse 22 25a
• S202
• S206
• S215
• S400
• S429
• S500
• S601
• S903
• Solid state timer

ENGINE PERFORMANCE

4.3L

4.3L VIN W, Engine Performance Wiring Diagrams (1 of 4) for Chevrolet Chevy Express G2002 2500

List of elements for 4.3L VIN W, Engine Performance Wiring Diagrams (1 of 4) for Chevrolet Chevy Express G2002 2500:

• (i/p harn, 6 cm from park brake breakout)
• (lower front of engine, near crankshaft) crankshaft position sensor
• (near thermostat housing) g101
• (top rear of engine)
• (under left side of dash) data link connector
• 12v ref
• 3-2 shift sol
• 5v ref
• Battery
• Camshaft position sensor (part of distributor, rear top of engine)
• Ckp sens
• Class2 data
• Cmp sensor
• Ecm-b fuse 20a
• Ect sensor
• Egr gnd
• Egr valve
• Eng-1 k7
• Engine coolant temperature sensor (on top front of engine)
• F11
• Fuse 20a l8
• G103 (at generator bracket)
• G12
• Ground
• Heated oxygen sensor bank 1 sensor 1 (in exhaust pipe in front of catalytic converter)
• Heated oxygen sensor bank 1 sensor 2 (in exhaust pipe in back of catalytic converter)
• Heated oxygen sensor bank 2 sensor 2 (w/ air injection reaction system) (in exhaust pipe in back of catalytic converter)
• Ho2s hi
• Ho2s low
• Hot at all times
• Hot in run or start
• Ign 1
• Inj 1
• Inj 2
• Inj 3
• Inj 4
• Inj 5
• Inj 6
• Knock sensor
• Ks sig
• Low ref
• Nca
• Off/run/crk
• Pnk
• Powertrain control module (on left inner fender)
• Red
• Red c
• S101
• S102
• S120
• S130
• S152
• S207
• Solid state
• Tan
• Tcc bk sw
• Trans pres b
• Trans pres c
• Trans sw a
• Trans sw b
• Trans sw p
• Underhood fuse block

4.3L VIN W, Engine Performance Wiring Diagrams (2 of 4) for Chevrolet Chevy Express G2002 2500

List of elements for 4.3L VIN W, Engine Performance Wiring Diagrams (2 of 4) for Chevrolet Chevy Express G2002 2500:

• (w/4l60-e trans)
• (w/4l80-e trans)
• 1-2 shift solenoid
• 2-3 shift solenoid
• 3-2 shift solenoid
• A/t fluid pressure manual valve position switch
• Automatic transmission
• Ecm-1 fuse 20a
• Exhaust gas recirculation valve (top front of engine)
• Fluid temp sensor ground
• Fluid temp sensor signal
• Fuel inj 1
• Fuel inj 2
• Fuel inj 3
• Fuel inj 4
• Fuel inj 5
• Fuel inj 6
• Heated oxygen sensor bank 2 sensor 1 (in exhaust pipe in front of catalytic converter)
• Hot in run
• Hot in run or start
• I/p fuse block
• Ignition
• M4 brake fuse 18 10a n3
• Nca
• Pnk
• Pressure control solenoid valve
• Red
• S132
• S133
• S139
• S154 (engine harn, 97 cm from underhood fuse block)
• S210
• Tan
• Tcc pcm solenoid valve
• Tcc solenoid vlave
• Tcc/brake switch (behind dash, on brake pedal support)
• Underhood fuse block
• W/4l60-e 4-speed trans only

4.3L VIN W, Engine Performance Wiring Diagrams (3 of 4) for Chevrolet Chevy Express G2002 2500

List of elements for 4.3L VIN W, Engine Performance Wiring Diagrams (3 of 4) for Chevrolet Chevy Express G2002 2500:

• (engine harn, 110 cm from underhood fuse block)
• (engine harn, left rear of engine compt)
• (i/p harn, 6 cm from power seat breakout)
• (left front of engine) g101
• (near generator bracket) g103
• 87a
• Air fuse 30a
• B14
• B17
• Fuel lvl input
• Fuel pump & sender (in fuel tank under rear of vehicle)
• Fuel pump relay
• Fuel tank pressure sensor (in fuel tank)
• G101 (near thermostat housing)
• Gauges fuse 4 10a
• Hot at all times
• Hot in off, run or start
• Hot in run or start
• I/p fuse block
• Input
• Instrument cluster
• Instrument cluster system
• Malfunction indicator lamp (mil) "service engine soon"
• Manifold absolute pressure sensor (top right side of engine)
• Mass airflow sensor (part of air intake duct, top front of engine)
• Odometer speedometer/
• Park/ neutral position switch
• Pnk
• Red
• S101
• S102
• S103
• S119
• S136
• S152
• S161
• S162
• S163
• S164
• S171
• S216
• S239
• Secondary air injection reaction pump clutch
• Secondary air injection reaction pump relay
• Secondary air injection reaction solenoid
• Sig in
• Sig out
• Throttle position sensor (on left side of throttle body)
• Trans fuse 20 10a
• Underhood fuse block

4.3L VIN W, Engine Performance Wiring Diagrams (4 of 4) for Chevrolet Chevy Express G2002 2500

List of elements for 4.3L VIN W, Engine Performance Wiring Diagrams (4 of 4) for Chevrolet Chevy Express G2002 2500:

• (near generator bracket) g103
• (near thermostat housing) g101
• (top left side of engine)
• 1-2 shift
• 12v ref
• 2-3 shift
• A pnk
• A/c clutch
• A/c low
• A/c req
• A/c system
• Air pump
• Anti-lock brake system
• At iss hi
• At iss lo
• Automatic transmission input shaft speed sensor (w/4l80-e) (left side of transmission)
• Charge ind
• Cruise control system
• Cruise eng
• Distributor
• Eavp purge
• Egr sol
• Egr supp
• Evap vent
• Evaporative emission canister vent solenoid (on front of evap canister)
• Evaporative emissions canister purge solenoid valve (right side of engine)
• F pmp rly
• Fuel lev
• Gen f
• Gen to
• Ground
• High voltage coil wire
• Iac coil a
• Iac coil b
• Iat sens sig
• Ic timing
• Idle air control valve
• Ignition coil (top rear of engine)
• Ignition control module (top right side of engine, at ignition coil)
• Intake air temperature sensor (front of engine compartment, part of air intake duct)
• Low ref
• Maf sens
• Map sens
• Mil
• Pc sol
• Pnk
• Powertrain control module (on left inner fender)
• Pres sens
• Red
• S101
• S102
• Solid state
• Starting/charging system
• Tan
• Tan a
• Tcc pwm sol
• Tcc sol
• Tft sens
• Tp sens
• Trans a
• Trans c
• Vehicle speed sensor (right side of transmission)
• Vss
• Vss hi
• Vss low

5.0L

5.0L VIN M, Engine Performance Wiring Diagrams (1 of 4) for Chevrolet Chevy Express G2002 2500

List of elements for 5.0L VIN M, Engine Performance Wiring Diagrams (1 of 4) for Chevrolet Chevy Express G2002 2500:

• (i/p harn, 6 cm from park brake breakout)
• (lower left front of engine, near crankshaft) crankshaft position sensor
• (near thermostat housing) g101
• (under left side of dash) data link connector
• 12v ref
• 3-2 shift sol
• 5v ref
• Battery
• Camshaft position sensor (part of distributor, rear top of engine)
• Ckp sens
• Class2 data
• Cmp sensor
• Computer data lines system
• Ecm-b fuse 20a
• Ect sensor
• Egr gnd
• Egr valve
• Eng-1 k7
• Engine coolant temperature sensor (on top front of engine)
• F11
• Fuse 20a l8
• G103 (near generator bracket)
• G12
• Ground
• Heated oxygen sensor bank 1 sensor 1 (in exhaust pipe in front of catalytic converter)
• Heated oxygen sensor bank 1 sensor 2 (in exhaust pipe in back of catalytic converter)
• Heated oxygen sensor bank 2 sensor 2 (5.7l 0nly) (in exhaust pipe in back of catalytic converter)
• Ho2s hi
• Ho2s low
• Hot at all times
• Hot in run or start
• Ign 1
• Inj 1
• Inj 2
• Inj 3
• Inj 4
• Inj 5
• Inj 6
• Inj 7
• Inj 8
• Knock sensor (on right side of engine)
• Ks 1
• Low ref
• Nca
• Off/run/crk
• Pnk
• Powertrain control module (on left inner fender)
• Red
• Red c
• S101
• S102
• S120
• S130
• S152
• S207
• Solid state
• Tan
• Tcc bk sw
• Trans pres b
• Trans pres c
• Trans sw a
• Trans sw b
• Trans sw p
• Underhood fuse block
• W/ 4l60
• W/ 4l80

5.0L VIN M, Engine Performance Wiring Diagrams (2 of 4) for Chevrolet Chevy Express G2002 2500

List of elements for 5.0L VIN M, Engine Performance Wiring Diagrams (2 of 4) for Chevrolet Chevy Express G2002 2500:

• (w/4l60-e trans)
• (w/4l80-e trans)
• 1-2 shift solenoid
• 2-3 shift solenoid
• 3-2 shift solenoid
• A/t fluid pressure manual valve position switch
• Automatic transmission
• Ecm-1 fuse 20a
• Exhaust gas recirculation valve (top front of engine)
• Fluid temp sensor ground
• Fluid temp sensor signal
• Fuel inj 1
• Fuel inj 2
• Fuel inj 3
• Fuel inj 4
• Fuel inj 5
• Fuel inj 6
• Fuel inj 7
• Fuel inj 8
• Heated oxygen sensor bank 2 sensor 1 (in exhaust pipe in front of catalytic converter)
• Hot in run
• Hot in run or start
• I/p fuse block
• Ignition
• M4 brake fuse 18 10a n3
• Nca
• Pnk
• Pressure control solenoid valve
• Red
• S132
• S133
• S139
• S154 (engine harn, 97 cm from underhood fuse block)
• S210
• Tan
• Tcc pcm solenoid valve
• Tcc solenoid vlave
• Tcc/brake switch (behind dash, on brake pedal support)
• Underhood fuse block
• W/4l60-e 4-speed trans only

5.0L VIN M, Engine Performance Wiring Diagrams (3 of 4) for Chevrolet Chevy Express G2002 2500

List of elements for 5.0L VIN M, Engine Performance Wiring Diagrams (3 of 4) for Chevrolet Chevy Express G2002 2500:

• (engine harn, left rear of engine compt)
• (i/p harn, 6 cm from power seat breakout)
• (near generator bracket) g103
• (near thermostat housing) g101
• 87a
• Air fuse 30a
• B14
• B17
• Fuel lvl input
• Fuel pump & sender (in fuel tank under rear of vehicle)
• Fuel pump relay
• Fuel tank pressure sensor (in fuel tank)
• G101 (near thermostat housing)
• Gauges fuse 4 10a
• Hot at all times
• Hot in off, run or start
• Hot in run or start
• I/p fuse block
• Input
• Instrument cluster
• Instrument cluster system
• Malfunction indicator lamp (mil) "service engine soon"
• Manifold absolute pressure sensor (top right side of engine)
• Mass airflow sensor (part of air intake duct, top front of engine)
• Odometer speedometer/
• Park/ neutral position switch
• Pnk
• Red
• S101
• S102
• S103
• S119
• S152
• S161
• S162
• S163
• S164
• S165
• S171
• S216
• S239
• Secondary air injection reaction pump clutch
• Secondary air injection reaction pump relay
• Secondary air injection reaction solenoid
• Sig in
• Sig out
• Throttle position sensor (on side of throttle body)
• Trans fuse 20 10a
• Underhood fuse block

5.0L VIN M, Engine Performance Wiring Diagrams (4 of 4) for Chevrolet Chevy Express G2002 2500

List of elements for 5.0L VIN M, Engine Performance Wiring Diagrams (4 of 4) for Chevrolet Chevy Express G2002 2500:

• (near generator bracket) g103
• (near thermostat housing) g101
• (top left side of engine)
• 1-2 shift
• 12v ref
• 2-3 shift
• A pnk
• A/c clutch
• A/c low
• A/c req
• A/c system
• Air pump
• Anti-lock brake system
• At iss hi
• At iss lo
• Automatic transmission input shaft speed sensor (w/4l80-e) (left side of transmission)
• Charge ind
• Cruise control system
• Cruise eng
• Distributor
• Eavp purge
• Egr sol
• Egr supp
• Evap vent
• Evaporative emission canister vent solenoid (california) (on left frame rail, near fuel tank)
• Evaporative emissions canister purge solenoid valve (right side of engine)
• F pmp rly
• Fuel lev
• Gen f
• Gen to
• Ground
• High voltage coil wire
• Iac coil a
• Iac coil b
• Iat sens sig
• Ic timing
• Idle air control valve
• Ignition coil (top right side of engine)
• Ignition control module (top right side of engine, at ignition coil)
• Intake air temperature sensor (front of engine compartment, part of air intake duct)
• Low ref
• Maf sens
• Map sens
• Mil
• Pc sol
• Pnk
• Powertrain control module (on left inner fender)
• Pres sens
• Red
• S101
• S102
• Solid state
• Starting/charging system
• Tan
• Tan a
• Tcc pwm sol
• Tcc sol
• Tft sens
• Tp sens
• Trans a
• Trans c
• Vehicle speed sensor (on side of transmission)
• Vss
• Vss hi
• Vss low

5.7L

5.7L VIN R, Engine Performance Wiring Diagrams (1 of 4) for Chevrolet Chevy Express G2002 2500

List of elements for 5.7L VIN R, Engine Performance Wiring Diagrams (1 of 4) for Chevrolet Chevy Express G2002 2500:

• (i/p harn, 6 cm from park brake breakout)
• (lower left front of engine, near crankshaft) crankshaft position sensor
• (near thermostat housing) g101
• (under left side of dash) data link connector
• 12v ref
• 3-2 shift sol
• 5v ref
• Battery
• Camshaft position sensor (part of distributor, rear top of engine)
• Ckp sens
• Class2 data
• Cmp sensor
• Computer data lines system
• Ecm-b fuse 20a
• Ect sensor
• Egr gnd
• Egr valve
• Eng-1 k7
• Engine coolant temperature sensor (on top front of engine)
• F11
• Fuse 20a l8
• G103 (near generator bracket)
• G12
• Ground
• Heated oxygen sensor bank 1 sensor 1 (in exhaust pipe in front of catalytic converter)
• Heated oxygen sensor bank 1 sensor 2 (in exhaust pipe in back of catalytic converter)
• Heated oxygen sensor bank 2 sensor 2 (5.7l 0nly) (in exhaust pipe in back of catalytic converter)
• Ho2s hi
• Ho2s low
• Hot at all times
• Hot in run or start
• Ign 1
• Inj 1
• Inj 2
• Inj 3
• Inj 4
• Inj 5
• Inj 6
• Inj 7
• Inj 8
• Knock sensor (on right side of engine)
• Ks 1
• Low ref
• Nca
• Off/run/crk
• Pnk
• Powertrain control module (on left inner fender)
• Red
• Red c
• S101
• S102
• S120
• S130
• S152
• S207
• Solid state
• Tan
• Tcc bk sw
• Trans pres b
• Trans pres c
• Trans sw a
• Trans sw b
• Trans sw p
• Underhood fuse block
• W/ 4l60
• W/ 4l80

5.7L VIN R, Engine Performance Wiring Diagrams (2 of 4) for Chevrolet Chevy Express G2002 2500

List of elements for 5.7L VIN R, Engine Performance Wiring Diagrams (2 of 4) for Chevrolet Chevy Express G2002 2500:

• (w/4l60-e trans)
• (w/4l80-e trans)
• 1-2 shift solenoid
• 2-3 shift solenoid
• 3-2 shift solenoid
• A/t fluid pressure manual valve position switch
• Automatic transmission
• Ecm-1 fuse 20a
• Exhaust gas recirculation valve (top front of engine)
• Fluid temp sensor ground
• Fluid temp sensor signal
• Fuel inj 1
• Fuel inj 2
• Fuel inj 3
• Fuel inj 4
• Fuel inj 5
• Fuel inj 6
• Fuel inj 7
• Fuel inj 8
• Heated oxygen sensor bank 2 sensor 1 (in exhaust pipe in front of catalytic converter)
• Hot in run
• Hot in run or start
• I/p fuse block
• Ignition
• M4 brake fuse 18 10a n3
• Nca
• Pnk
• Pressure control solenoid valve
• Red
• S132
• S133
• S139
• S154 (engine harn, 97 cm from underhood fuse block)
• S210
• Tan
• Tcc pcm solenoid valve
• Tcc solenoid vlave
• Tcc/brake switch (behind dash, on brake pedal support)
• Underhood fuse block
• W/4l60-e 4-speed trans only

5.7L VIN R, Engine Performance Wiring Diagrams (3 of 4) for Chevrolet Chevy Express G2002 2500

List of elements for 5.7L VIN R, Engine Performance Wiring Diagrams (3 of 4) for Chevrolet Chevy Express G2002 2500:

• (engine harn, left rear of engine compt)
• (i/p harn, 6 cm from power seat breakout)
• (near generator bracket) g103
• (near thermostat housing) g101
• 87a
• Air fuse 30a
• B14
• B17
• Fuel lvl input
• Fuel pump & sender (in fuel tank under rear of vehicle)
• Fuel pump relay
• Fuel tank pressure sensor (in fuel tank)
• G101 (near thermostat housing)
• Gauges fuse 4 10a
• Hot at all times
• Hot in off, run or start
• Hot in run or start
• I/p fuse block
• Input
• Instrument cluster
• Instrument cluster system
• Malfunction indicator lamp (mil) "service engine soon"
• Manifold absolute pressure sensor (top right side of engine)
• Mass airflow sensor (part of air intake duct, top front of engine)
• Odometer speedometer/
• Park/ neutral position switch
• Pnk
• Red
• S101
• S102
• S103
• S119
• S152
• S161
• S162
• S163
• S164
• S165
• S171
• S216
• S239
• Secondary air injection reaction pump clutch
• Secondary air injection reaction pump relay
• Secondary air injection reaction solenoid
• Sig in
• Sig out
• Throttle position sensor (on side of throttle body)
• Trans fuse 20 10a
• Underhood fuse block

5.7L VIN R, Engine Performance Wiring Diagrams (4 of 4) for Chevrolet Chevy Express G2002 2500

List of elements for 5.7L VIN R, Engine Performance Wiring Diagrams (4 of 4) for Chevrolet Chevy Express G2002 2500:

• (near generator bracket) g103
• (near thermostat housing) g101
• (top left side of engine)
• 1-2 shift
• 12v ref
• 2-3 shift
• A pnk
• A/c clutch
• A/c low
• A/c req
• A/c system
• Air pump
• Anti-lock brake system
• At iss hi
• At iss lo
• Automatic transmission input shaft speed sensor (w/4l80-e) (left side of transmission)
• Charge ind
• Cruise control system
• Cruise eng
• Distributor
• Eavp purge
• Egr sol
• Egr supp
• Evap vent
• Evaporative emission canister vent solenoid (california) (on left frame rail, near fuel tank)
• Evaporative emissions canister purge solenoid valve (right side of engine)
• F pmp rly
• Fuel lev
• Gen f
• Gen to
• Ground
• High voltage coil wire
• Iac coil a
• Iac coil b
• Iat sens sig
• Ic timing
• Idle air control valve
• Ignition coil (top right side of engine)
• Ignition control module (top right side of engine, at ignition coil)
• Intake air temperature sensor (front of engine compartment, part of air intake duct)
• Low ref
• Maf sens
• Map sens
• Mil
• Pc sol
• Pnk
• Powertrain control module (on left inner fender)
• Pres sens
• Red
• S101
• S102
• Solid state
• Starting/charging system
• Tan
• Tan a
• Tcc pwm sol
• Tcc sol
• Tft sens
• Tp sens
• Trans a
• Trans c
• Vehicle speed sensor (on side of transmission)
• Vss
• Vss hi
• Vss low

EXTERIOR LIGHTS

Back-up Lamps Wiring Diagram for Chevrolet Chevy Express G2002 2500

List of elements for Back-up Lamps Wiring Diagram for Chevrolet Chevy Express G2002 2500:

• Back-up lamp switch (park/neutral position switch) (left side of transmission)
• D c406
• G400 (left rear corner of interior of cabin "d" pillar)
• G401 (right rear corner of interior of cabin "d" pillar)
• Hot in run or start
• I/p fuse block
• I/p harness, near breakout to convenience center) s260
• Left back-up lamp
• Mirrors system
• Pnk
• Right back-up lamp
• S217
• S409
• S909
• S910
• Turn b/u fuse 16 20a

Exterior Lamps Wiring Diagram, with Composite Headlamps for Chevrolet Chevy Express G2002 2500

List of elements for Exterior Lamps Wiring Diagram, with Composite Headlamps for Chevrolet Chevy Express G2002 2500:

• (forward lamp harn, 25 cm into left forward lamp harness) s142
• (forward lamp harness, 26 cm from left forward lamp breakout) s135
• (i/p harness, near the hvac switch breakout) s225
• (not used)
• A10
• B c406
• B9 turn pwr b8 haz pwr b7 flshr out c8 gnd
• Center high mounted stop lamp (chmsl)
• Cruise control system
• F c406
• G108 (left side of engine compt, near fender well)
• G109 (right side of engine compt, near fender well)
• G201 (behind left kick panel)
• G400 (left rear corner of interior of cabin "d' pillar)
• G401 (right rear corner of interior of cabin "d' pillar)
• Haz sw
• Hazard
• Hazard fuse 20a
• Head
• Headlamp switch
• Hot at all times
• Hot in run or start
• I/p fuse block
• I/p relay center (under left side of dash)
• Instru- ment panel cluster
• Interior lights system
• Left
• Left front inner park/ turn signal lamp
• Left front marker lamp
• Left front outer park/ turn signal lamp
• Left rear park/ turn signal lamp
• Left tail lamp
• Left turn ind
• License lamp
• Multi- function switch
• Normal
• Off
• Park
• Park lps fuse 9 20a
• Pnk
• Right
• Right front inner park/ turn signal lamp
• Right front marker lamp
• Right front outer park/ turn signal lamp
• Right rear park/ turn signal lamp
• Right tail lamp
• Right turn ind
• S110
• S118
• S125 (in i/p harn, in left rear of engine compt, near the bulkhead)
• S145 (forward lamp harness, 15 cm into right forward lamps breakout)
• S183 (in i/p harn, in left rear of engine compt, near the bulkhead)
• S202
• S217
• S222
• S253
• S400
• S402 (left body harn, behind right taillamp assembly)
• S903
• S909
• S910
• Stop fuse 20a
• Tcc/ brake switch (behind dash, on brake pedal support)
• Tn sw
• Turn- b/u fuse 16 20a
• Turn/hazard lamp flasher
• W/ optional trailer wiring package
• W/ optional trailer wiring package)

Exterior Lamps Wiring Diagram, with Sealed Beam Headlamps for Chevrolet Chevy Express G2002 2500

List of elements for Exterior Lamps Wiring Diagram, with Sealed Beam Headlamps for Chevrolet Chevy Express G2002 2500:

• (forward lamp harn, 25 cm into left forward lamp harness) s142
• (forward lamp harness, 26 cm from left forward lamp breakout)
• (i/p harness, near the hvac switch breakout) s225
• (not used)
• A10
• B c406
• B9 turn pwr b8 haz pwr b7 flshr out c8 gnd
• Center high mounted stop lamp (chmsl)
• Cruise control system
• F c406
• G108 (left side of engine compt, near fender well)
• G109 (right side of engine compt, near fender well)
• G201 (behind left kick panel)
• G400 (left rear corner of interior of cabin "d" pillar)
• G401 (right rear corner of interior of cabin "d" pillar)
• Haz sw
• Hazard
• Hazard fuse 20a
• Head
• Headlamp switch
• Hot at all times
• Hot in run or start
• I/p fuse block
• I/p relay center (under left side of dash)
• Instru- ment panel cluster
• Interior lights system
• Left
• Left front park/turn signal lamp
• Left front side marker lamp
• Left rear park/ turn signal lamp
• Left tail lamp
• Left turn ind
• License lamp
• Multi- function switch
• Normal
• Off
• Park
• Park lps fuse 9 20a
• Pnk
• R100 (resistor) (6 ohms, 30 watts)
• Right
• Right front park/turn signal lamp
• Right front side marker lamp
• Right rear park/ turn signal lamp
• Right tail lamp
• Right turn ind
• S110
• S118
• S125 (in i/p harn, in left rear of engine compt, near the bulkhead)
• S135
• S145 (forward lamp harness, 15 cm into right forward lamps breakout)
• S183 (in i/p harn, in left rear of engine compt, near the bulkhead)
• S202
• S217
• S222
• S253
• S400
• S402 (left body harn, behind right taillamp assembly)
• S903
• S909
• S910
• Stop fuse 20a
• Tcc/ brake switch (behind dash, on brake pedal support)
• Tn sw
• Turn- b/u fuse 16 20a
• Turn/hazard lamp flasher
• W/ optional trailer wiring package
• W/ optional trailer wiring package)

GROUND DISTRIBUTION

Ground Distribution Wiring Diagram (1 of 4) for Chevrolet Chevy Express G2002 2500

List of elements for Ground Distribution Wiring Diagram (1 of 4) for Chevrolet Chevy Express G2002 2500:

• (forward lamp harness, approx 19 cm into left forward lamp breakout)
• (forward lamp harness, approx 21 cm into right forward lamp breakout)
• (i/p harness, approx 7 cm from i/p relay center breakout)
• (lower i/p harness, approx 7 cm into i/p compartment lamp breakout)
• (sun shade harness, approx 7 cm from right sun shade breakout)
• (w/ upfitter provisions)
• 31a
• A/t shift lock solenoid
• A12
• Accessory power outlet
• Air temperature actuator
• Auxiliary battery (diesel)
• Auxiliary blower motor
• Auxiliary blower motor switch
• Battery
• C200
• C202
• C210
• Cigar lighter
• Convenience center
• Convenience center (left side of dash)
• Coolant level module (diesel)
• Coolant level switch (diesel)
• Cruise test resistor connector
• Cruise test resistor connector (school bus only) b
• Data link connector
• Daytime running lamp (drl) control module
• Door jamb switch
• Door lock control module
• Door lock relay
• Driver seat adjuster switch
• E13
• Fog lamp switch
• Front passenger seat adjuster switch
• G100 (right side of engine compt, near fender well)
• G104 (right frame rail, near front of engine)
• G105 (right lower front of engine)
• G108 (left side of engine compt, near fender well)
• G109 (right side of engine compt, near fender well)
• G112 (left side of engine compt, under brake master cylinder)
• G200 (behind left kick panel)
• G201 (behind left kick panel)
• G300 (left frame rail, near auxiliary battery)
• G301 (in cutaway body harn, near tail lamp breakout)
• Headlamp leveling switch
• Headlamp switch
• Hvac control assembly
• I/p compartment lamp
• I/p relay block
• Ignition switch
• Instrument panel cluster (ipc)
• Interior lamp control module
• Left fog lamp
• Left front marker lamp
• Left front park/turn signal lamp
• Left headlamp (w/ sealed beam headlamps)
• Left headlamp leveling actuator
• Left high beam headlamp (w/ composite headlamps)
• Left low beam headlamp (w/ composite headlamps)
• Left rear fog lamp
• Left vanity mirror lamp
• Multi- function alarm module
• Nca
• Power brake (p/b) booster fluid alarm switch
• Radio
• Rear fog lamp switch
• Remote control door lock receiver
• Right fog lamp
• 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)
• Right vanity mirror lamp
• S150 (approx 12 cm from left forward lamp breakout)
• S201 (i/p harness, approx 4 cm from park brake warning switch breakout)
• S202
• S204
• S205
• S206 (crossbody harness, approx 22 cm from power door lock relay breakout)
• S257 (power seat harn, under left side of dash)
• S328 (cutaway provision body harn, approx 80 cm from taillamp breakout)
• School bus equipment
• Seat belt switch
• Steering column ground
• To s500 or left front door jamb switch (diagram 2 of 4)
• To s601 or right front door jamb switch (diagram 2 of 4)
• Turn signal/ hazard flasher module
• Upfitter provisions relay
• W/ upfitter provisions
• W/o keyless entry
• Windshield washer pump motor
• Windshield wiper motor

Ground Distribution Wiring Diagram (2 of 4) for Chevrolet Chevy Express G2002 2500

List of elements for Ground Distribution Wiring Diagram (2 of 4) for Chevrolet Chevy Express G2002 2500:

• (at generator bracket) g103
• (engine harness, approx 10 cm from a/c compressor breakout)
• (i/p harness, approx 8 cm from bulkhead connector breakout)
• (left front door harness, approx 7 cm from power window switch breakout)
• (right front door harness, approx 7 cm from power window switch breakout)
• A/c compressor clutch
• A18
• Ambulance package
• B13
• Base
• Blower motor resistor assembly
• Brake pressure differential switch
• C206
• C302
• Center dome/ reading lamps
• Data link connector (dlc)
• Diesel engines
• Diode
• Driver door jamb switch
• Driver door lock switch
• Driver outside rear view mirror
• Driver window switch
• Electronic brake control module (ebcm)
• Fog lamp relay
• From s206 (diagram 1 of 4)
• Front passenger door jamb switch
• Front passenger power door lock switch
• Front passenger power window switch
• Front reading lamps
• Fuel heater
• Fuel pump
• Fuel pump relay
• Fuel sender buffer module
• Fuse block
• G101 (front of engine, near thermostat housing)
• G102 (left front of engine at a/c compressor)
• G106 (left side of safety wall)
• G202 (behind left kick panel)
• Garage door opener
• Glow plug relay
• Horn assembly
• Inflatable restraint sensing & diagnostic module
• Inside rear view mirror
• Instrument panel cluster (ipc)
• Nca
• Non base
• Outside rearview mirror switch
• Park/ neutral position switch
• Passenger outside rearview mirror
• Passlock module
• Powertrain control module (pcm)
• Rear dome/ reading lamps
• Rsa-t module
• S101 (engine harness, approx 10 cm from a/c compressor breakout)
• S102
• S254
• S322 (upfitters provisions harn, approx 29 cm from upfitter provision relay)
• S330 (in entertainment harn, approx 20 cm from rsa-t module breakout)
• Starter relay
• Switch amp power relay
• Underhood fuse block
• Underhood lamp
• Upfitters provisions
• Vehicle speed sensor buffer
• W/ nb6
• W/ upfitter provisions
• W/o nb6
• Water-in- fuel sensor

Ground Distribution Wiring Diagram (3 of 4) for Chevrolet Chevy Express G2002 2500

List of elements for Ground Distribution Wiring Diagram (3 of 4) for Chevrolet Chevy Express G2002 2500:

• (4.3l, 5.ol & 5.7l)
• (8.1l)
• (8.1l: eng harn, 6 cm from a/c compressor high pressure cutoff switch breakout, 4.3l, 50l & 5.7l: eng harn, 4 cm from a/c compressor clutch breakout, toward transmission)
• 4.3l & 5.7l
• 4.3l 5.0l 5.7l
• 4.3l, 5.0l, 5.7l a
• 8.1l
• 8.1l eng w/ electronic reactor system air injection
• A b 8.1l
• A/c compressor clutch
• A/c low pressure switch
• Actuator control (tac) module
• B13
• Blower motor resistor assembly
• Brake pressure differential switch
• Cruise control module
• Data link connector (dlc)
• Diode
• Electronic brake control module (ebcm)
• Except 8.1l
• Except 8.1l eng w/ electronic reactor system air injection
• Fuel pump & sender assembly
• Fuel pump relay
• G101 (front of engine, near thermostat housing)
• G101 (on rear of left cylinder head)
• G102 (eng harn, 4.3l, 5.0l & 5.7l: near generator bracket, 8.1l: on rear of left cylinder head)
• G103 (5.ol & 5.7l: rear of right cylinder head, 8.1l: rear of left cylinder head, 4.3l: near generator bracket)
• Gasoline engines
• 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
• 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
• Ignition control module (icm)
• Instrument panel cluster (ipc)
• Mass air flow (maf) sensor
• Nca
• Park/ neutral position switch
• Passlock module
• Powertrain control module (pcm)
• S101 (4.3l, 5.0l & 5.7l: eng harn, 21 cm from ignition coil breakout, toward ebcm, 8.1l: eng harn, 13 cm from crankshaft position breakout)
• S102 (8.1l- approx 5 cm from a/c compressor clutch breakout, ex 8.1l- approx 104 cm from underhood fuse block, toward a/c compressor clutch breakout)
• S103
• S152 (4.3l: eng harn, 26 cm from icm breakout, 8.1l: eng harn, 38 cm from generator breakout)
• S171 (8.1l- approx 104 cm from underhood fuse block, ex 8.1l- approx 60 cm from underhood fuse block, toward a/c compressor clutch breakout)
• S183
• S184
• S254 (i/p harn, approx 8 cm from bulkhead connector breakout, toward instrument cluster)
• Secondary air injection (air) pump
• Secondary air injection (air) solenoid
• Starter relay
• Throttle
• Underhood fuse block
• Underhood lamp
• W/ hydra-matic 4l60-e or 4.3l w/ hydra-matic 4l80-e c
• W/ hydra-matic 4l80-e b

Ground Distribution Wiring Diagram (4 of 4) for Chevrolet Chevy Express G2002 2500

List of elements for Ground Distribution Wiring Diagram (4 of 4) for Chevrolet Chevy Express G2002 2500:

• (axiliary heater & a/c harn, 13 cm from front auxiliary hvac control assembly breakout) s318
• (entertainment harn, 7.5 cm from, rsa-t module breakout)
• (rear a/c harn, approx 5 cm from outside air valve actuator breakout) s411
• Auxiliary air temperature actuator
• Auxiliary blower motor
• Auxiliary blower motor switch
• Auxiliary hvac control processor
• Auxiliary mode actuator
• Back-up lamp
• Bare
• Bose amp
• Cargo
• Center high mounted stoplamp
• Chmsl connector breakout)
• Front 100w amp
• Front audio circuits to bose 2000 amp amplifier 1
• Front auxiliary hvac control assembly
• G203 (behind left kick panel)
• G302 (right "b" pillar)
• G303 (left "b" pillar)
• G304 (right rear wheel well)
• G400 (left rear corner of interior of cabin, "d" pillar)
• G401 (right rear corner of the interior of the cabin, "d" pillar)
• Left back-up lamp
• Left rear fog lamp
• Left rear park/turn signal lamp
• Left rear window defogger grid
• Left tail/ stop lamp
• License lamp
• Passenger
• Rear 100w amp
• Rear accessory power outlet b
• Rear audio circuits rsa-t to bose 2000 amp ampllifiers
• Rear audio circuits to bose 2000 amp amplifier 1
• Rear audio circuits to bose 2000 amp amplifier 2
• Rear audio circuits to rsa-t
• Rear auxiliary hvac control assembly
• Rear window defogger relay
• Rear woofer
• Right back-up lamp
• Right rear door jamb switch
• Right rear park/turn signal lamp
• Right rear window defogger grid
• Right tail/stop lamp
• S331 (entertainment harn, 16cm from first bose amplifier breakout)
• S394 bare
• S400 (left body harn, 33 cm from a connector breakout toward chmsl connector breakout)
• S902 (rear license lamp jumper near right license lamp)
• S903 (right rear door harn, approx 29 cm from the door jamb switch breakout)
• S909 (right taillight harn, near back-up lamp breakout)
• S910 (near back-up lamp breakout)
• Shield for radio audio outputs
• W/ auxiliary heater
• W/ auxiliary heater or wiring provisions
• W/ rear a/c
• Wiring provisions

HEADLIGHTS

Headlight Wiring Diagram for Chevrolet Chevy Express G2002 2500

List of elements for Headlight Wiring Diagram for Chevrolet Chevy Express G2002 2500:

• (12.5 cm into left parking lamp breakout) s112
• (approx 10 cm from park brake warning switch breakout)
• (forward lamp harn, approx 13 cm from left forward lamp breakout toward right forward lamp breakout) s143
• (in drl module breakout)
• (in fog lamp switch breakout)
• (right side of engine compt)
• 17a
• A13
• A17
• Acc
• B17
• Bat pwr
• Brake indicator
• Brake warning
• C200
• Composite headlamps
• Daytime running lamps control module (under left side of dash, taped to dash harness)
• Drl fuse 15 15a
• Drl indicator
• Drl relay ctrl
• E11 c200
• E12
• E13
• F f
• Fog lamp relay
• Fog lamp switch
• Fog light fuse 10a
• Foglamp enable relay (taped to harness near fog lamp switch)
• G106 (left side of safety wall)
• G108 (left side of engine compt)
• G109
• G109 (right side of engine compt)
• G201 (behind left kick panel)
• Gauges fuse 4 10a
• Ground
• Head
• Headlamp dimmer switch
• Headlamp switch
• High beam indicator
• High beam out
• Hot at all times
• Hot in run or start
• I/p fuse block (on left lower kick panel)
• Ign (run/st)
• Ignition switch
• Illum
• Indicator
• Instrument panel cluster (ipc)
• Interior lights system
• Left fog lamp
• Left headlamp high beam/ headlamp low beam
• Left high beam headlamp
• Left low beam headlamp
• Lighting fuse 40a
• Lock
• Low beam out
• Nca
• Off
• Park
• Park brake in
• Park brake switch (near left kick panel, on park brake lever)
• Pnk
• Rear fuse block (rear of driver door)
• Red
• Right fog lamp
• Right headlamp high beam/ headlamp low beam
• Right high beam headlamp
• Right low beam headlamp
• Run
• S110
• S118
• S143 (forward lamp harn, approx 13 cm from left forward lamp breakout toward right forward lamp breakout)
• S144 (forward lamp harn, approx 19 cm from left forward lamp breakout)
• S202
• S211
• S216
• S234 (i/p harn, 8 cm toward park brake warning switch breakout)
• S235
• S255 (29 cm from hvac switch breakout)
• S256 (7 cm into steering column harn breakout)
• S261
• S262
• S330
• Sealed beam headlamps
• Start
• Tan
• Underhood fuse block (on left side of engine compt)
• Warning systems

HORN

Horn Wiring Diagram for Chevrolet Chevy Express G2002 2500

List of elements for Horn Wiring Diagram for Chevrolet Chevy Express G2002 2500:

• (not used)
• A11
• C100
• C200
• G103 (at generator bracket)
• Gasoline diesel
• Horn brush
• Horn fuse 20a
• Horn relay
• Horn switch
• Horns (left front of engine compt)
• Hot at all times
• Nca
• S103 s101
• S127
• Turn signal switch
• Underhood fuse/relay center
• Underhood fuse/relay center (left side of engine compt)

INSTRUMENT CLUSTER

Instrument Cluster Wiring Diagram (1 of 2) for Chevrolet Chevy Express G2002 2500

List of elements for Instrument Cluster Wiring Diagram (1 of 2) for Chevrolet Chevy Express G2002 2500:

• (7 bulbs)
• (dash harness, 10 cm parking brake warning switch breakout) s235
• (diesel only)
• (eng harn, 4.3l/5.0/5.7l: 10 cm from injector harn breakout, 8.1l: 10 cm from vehicle speed sensor, 6.5l: 4 cm from brake pressure sw breakout)
• (gas)
• (not used)
• 8.1l
• A10
• A11
• A12
• A13
• A14
• A15
• A16
• A17
• Acc
• Air bag ind
• Anti-lock brakes system
• Anti-lock brakes warning ind
• Anti-theft system
• B10
• B11
• B12
• B13
• B14
• B15
• B16
• B17
• Bat ind
• Brake ind ctl
• Brake lamp ctl
• Brake pressure differential switch (left frame rail near center of vehicle, part of electronic brake control module)
• Brake warning ind
• Check gauges ind
• Coolant level module (diesel only) (behind left side of dash)
• Coolant level switch (diesel only) (under coolant recovery/ surge tank)
• Daytime running lamps control module (under left side of dash, taped to harness)
• Diesel only
• Dimmimg signal
• Diode d101
• Drl lamp ind
• Electronic brake control module (ebcm) (left framerail, near center of vehicle)
• Eng-i mini fuse 20a
• Engine controls system
• Engine coolant temperature sensor (on right side of engine)
• Engine coolant temperature sensor (on top front of engine)
• Except 8.1l
• Exterior lights system
• Fuel gauge
• G101 (front of engine, near thermostat housing)
• G103 (5.ol & 5.7l: rear of right cylinder head, 8.1l: rear of left cylinder head, 4.3l: near generator bracket)
• G103 (diesel) (at generator bracket)
• G109 (right side of engine compt, near fender well)
• G201 (behind left kick panel)
• Gauges fuse 4 10a
• Gnd
• Ground
• Headlights system
• High beam ind
• Hot in run or start
• I/p fuse block (lower left kick panel)
• I/p lamp voltage
• Ign
• Ign 1
• Ign 1 volt
• Ign feed
• Ignition switch
• Illumin- ation lamps
• Ind ctrl
• Instrument cluster
• Interior lights system
• Led
• Left turn ind
• Lock
• Logic
• Low coolant ind (diesel)
• Odometer
• Off
• Oil pressure gauge
• Park/neutral position switch (left side of transmission)
• Pk brake
• Pnk
• Prnd
• Right turn ind
• Run
• S101
• S118
• S130
• S156
• S201
• S202
• S216
• S254
• Safety belt ind
• Security ind
• Service engine soon ind
• Service throttle soon ind (diesel)
• Speedo- meter
• Start
• Starting/charging system
• Tan
• Temp gauge
• Tr sw a
• Tr sw b
• Tr sw c
• Tr sw p
• Underhood fuse block (left side of eng compt)
• Underhood fuse/relay center (on left side of engine compt)
• Volt- meter
• Wait to start ind (diesel)
• Warning system
• Water in fuel ind (diesel)
• Water-in-fuel sensor (diesel only) (left frame rail, near center of vehicle)

Instrument Cluster Wiring Diagram (2 of 2) for Chevrolet Chevy Express G2002 2500

List of elements for Instrument Cluster Wiring Diagram (2 of 2) for Chevrolet Chevy Express G2002 2500:

• (below right side of dash, near knee bolster)
• (diesel only)
• (eng harn, 4.3l: 110 cm from underhood fuse/ relay center, 5.0l, 5.7l: 65 cm from a/c compressor clutch breakout, 8.1l: 6 cm from a/c compressor high pressure cutoff switch breakout)
• (i/p harn, 6 cm into power seat breakout)
• (i/p harn, approx 21 cm from hvac switch breakout) s247
• +5v ref
• 1.5k
• Anti-lock brakes system
• Brake fuse 18 10a
• C301
• Diesel
• Engine controls system
• Engine oil pressure sensor (top rear of engine)
• Fuel level
• Fuel pump & sender assembly (in fuel tank)
• Fuel sender buffer module
• Fuel sig
• Fuel tank & level sender assembly (in fuel tank)
• G101 (front of engine, near thermostat housing)
• G112 (left side of engine compt, under brake master cylinder)
• Gasoline
• Gnd
• Hot in acc or run
• Hot in off run or start
• I/p fuse block (lower left kick panel)
• Ign
• Ignition
• Inline diode d202 (near park brake switch)
• Low flow
• Low pres.
• Low ref
• P/b booster fluid flow & pressure alarm delay module
• P/b booster fluid flow alarm
• P/b booster fluid pressure alarm switch
• Park brake warning switch
• Passlock module (behind center of dash)
• Pnk
• Power brake (p/b) booster fluid flow alarm switch
• Powertrain control module (behind center of dash)
• Powertrain control module (in engine compt on left inner fender)
• Prim sig
• Radio
• Resistor r208 (w/ uj1) (near i/p fuse block)
• S136
• S210
• S238 (i/p harn, 23 cm into passlock module breakout)
• S239
• S246 (i/p harn, approx 25 cm from hvac switch breakout)
• S254
• Sens gnd
• Speed sig
• Sw sense
• Tan
• Tank signal
• Trans fuse 20 10a
• Twisted pair
• Vehicle speed sensor (left side of transmission)
• Vehicle speed sensor buffer (diesel only) (below dash, near steering column)
• Vss high
• Vss low
• Vss out
• Vss sen
• W/ p/b booster warning option, rpo code-uj1

INTERIOR LIGHTS

Interior Light Wiring Diagram (1 of 2) for Chevrolet Chevy Express G2002 2500

List of elements for Interior Light Wiring Diagram (1 of 2) for Chevrolet Chevy Express G2002 2500:

• (base: body harn, approx 37 cm to rear of front dome lamp breakout)
• (behind center of dash)
• (behind center of dash) remote control door lock reciever
• (behind left kick panel)
• (body harn, approx 6 cm to rear of front dome lamp breakout)
• (crossbody harn, 9 cm to right of in-line conn breakout, toward convenience center breakout)
• (front crossbody harn, approx 23 cm from right kick panel)
• (i/p harn, 4 cm
• (i/p harn, 9 cm from breakout to headlamp switch) s226
• (left front door harn) s501
• (right front door harn) s603
• (upfitter: body harn, approx 46 cm from convenience center breakout)
• A nca
• Ash- tray lamp
• Battery
• Bright adjust
• C1 c210
• Center dome & reading lamp
• Con- venience center
• Ctsy fuse 3 20a
• Dome lamp
• Dome lamp override switch
• Dome switch
• Door lock control module (on left kick panel)
• Dr jamb sw
• Driver door lock switch
• Driver window switch
• E8 c202
• From breakout to hvac controls)
• Front dome & reading lamp
• Front pasenger door lock switch
• Front passenger window switch
• G200 (behind left kick panel)
• G201
• G201 (behind left kick panel)
• G401 (right rear corner of the interior of the cabin "d" pillar)
• Gauges fuse 4 10a
• Ground
• Headlamp switch
• Hot at all times
• Hot in run & start
• I/p compart- ment lamp
• I/p fuse block
• Ignition
• Interior lamp control module (on right lower kick panel)
• Lamp
• Left front door jamb switch
• Left front stepwell lamp
• Left vanity mirror lamp
• Nca
• Parade mode switch
• Park lps fuse 9 20a
• Park switch
• Pnk
• Pwr accy fuse a 25a
• Reading lamps
• Rear dome & reading lamp
• Rear door jamb switch
• Right front door jamb switch
• Right front stepwell lamp
• Right side stepwell lamp
• Right vanity mirror lamp
• S201
• S204
• S205
• S206
• S216
• S225
• S227
• S228
• S230
• S232
• S240
• S306
• S308 (sunshade illuminated mirror harn, 7 cm from right sunshade breakout)
• S406
• S903
• Side door jamb switch
• To i/p fuse block (diagram 2 of 2)
• To s224 (diagram 2 of 2)
• W/ power door locks
• W/ rke
• W/o power door locks
• W/o rke

Interior Light Wiring Diagram (2 of 2) for Chevrolet Chevy Express G2002 2500

List of elements for Interior Light Wiring Diagram (2 of 2) for Chevrolet Chevy Express G2002 2500:

• (8.1l)
• (auxiliary heat w/ a/c)
• (auxiliary heat)
• (diesel)
• (entertainment harn, approx 22 cm from left "b" pillar) s337
• (exc 8.1l)
• (gasoline)
• (gasoline) (diesel)
• (i/p harn, 4 cm from breakout to headlamp switch)
• (passenger)
• Auxiliary blower motor switch
• B10
• B12
• B13
• B6 ground b8 ground c3
• Fog lamp switch
• From headlamp switch (diagram 1 0f 2)
• Front auxiliary hvac control assembly
• G101 (front of engine, near thermostat housing)
• G101 (on rear of left cylinder head)
• G103 (5.ol & 5.7l: rear of right cylinder head, 8.1l: rear of left cylinder head, 4.3l & 6.5l: near generator bracket)
• G106 (left side of safety wall)
• G201 (behind left
• G201 (behind left kick panel)
• G400 (left rear corner of interior of cabin, "d" pillar)
• Game box (slt & lt)
• Garage door opener (slt & lt)
• Ground c5
• Ground ground c1
• Horn fuse 20a
• Hot at all times
• Hot in accy & run
• Hot in off, run & start
• Hvac control assembly
• I/p fuse block
• Illum fuse 14 10a
• Instrument cluster
• Kick panel)
• Nca
• Odometer
• Pnk
• Prndl
• Radio
• Radio-i fuse 17 10a
• Rear auxiliary hvac control assembly
• Rsa control (slt & lt)
• Rsa-t module (slt & lt models)
• S102
• S103
• S127
• S152 s101
• S171
• S201
• S202
• S220
• S223 (i/p harn, approx 17 cm from radio breakout)
• S224
• S254 (diesel)
• S318
• S330
• S400
• Trans fuse 20 10a
• Under- hood lamp
• Underhood fuse block

POWER DISTRIBUTION

Power Distribution Wiring Diagram (1 of 5) for Chevrolet Chevy Express G2002 2500

List of elements for Power Distribution Wiring Diagram (1 of 5) for Chevrolet Chevy Express G2002 2500:

• (approx 13 cm from blower motor resistor assembly breakout) s412
• (crossbody harn, approx 2 cm from convenience center conn breakout)
• (i/p harn, approx 3 cm into tcc/stoplamp switch breakout)
• (i/p harn, near i/p fuse block)
• (rear a/c harn, 3 cm from blower motor breakout)
• (rear aux htr and a/c harn, approx 11 cm from rear aux hvac control module breakout)
• (upfitters provision harn, 22cm from upfitter provision relay)
• (upfitters provision harn, near upfitter provision relay)
• A.i.r. fuse 30a
• A13
• Abs fuse 60a
• Acc
• Air temperature actuator
• Ambulance
• Aux-a fuse 50a
• Aux-b fuse 50a
• Auxiliary air temperature actuator
• Auxiliary battery
• 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
• Battery
• Battery junction block
• Blower fuse 60a
• Blower motor resistor assembly
• Brake fuse 18 10a
• C202
• C206
• C210
• C302
• Connector)
• Conve- nience center
• Convenience center
• Crank fuse 8 10a
• Cruise control module (gasoline)
• Cruise control on/off switch
• Cruise fuse 6 10a
• Diesel
• Driver window switch
• Electronic brake control module (ebcm)
• From aux-a fuse (diagram 1 of 5)
• Front auxiliary hvac control module
• Front passenger window switch
• Fusible link (10 ga- rust)
• Fusible link (10 ga-rust)
• G201 (behind left kick panel)
• Gasoline
• Generator
• Glowplug relay
• Htr a/c fuse 12 20a
• Hvac control assembly
• I/p fuse block
• Ign-a fuse 40a
• Ign-b fuse 50a
• Ignition switch
• Lock
• Nca
• Off
• Park/ neutral position switch
• Passenger
• Pnk
• Power brake (p/b) booster fluid low alarm
• Pwr wdo fuse b 25a
• R208 inline resistor
• Radio
• Radio 1 fuse 17 10a
• Rear auxiliary hvac control module
• Rear blower fuse 30a
• Red
• Rr hvac fuse 24 10a
• Run
• S201
• S210
• S213
• S229
• S307
• S311
• S312
• S404
• S405
• Secondary air injection pump relay
• Start
• Starter relay
• Starter solenoid
• Tcc/ brake switch
• To rear fuse block (diagram 4 of 5) (upfitter provision)
• To s214 (diagram 3 of 5)
• To trans fuse (diagram 4 of 5)
• To underhood fuse block (diagram 2 of 5)
• To underhood fuse-relay center (diagram 2 of 5)
• To upfitter provision relay (diagram 1 of 5)
• Underhood fuse block
• Upfitter provision connector
• Upfitter provision relay (behind left b pillar)
• W/ electronic reactor system air injection
• W/ rear a/c
• Windshield washer/ wiper switch
• Windshield wiper motor
• Wiper fuse 11 25a

Power Distribution Wiring Diagram (2 of 5) for Chevrolet Chevy Express G2002 2500

List of elements for Power Distribution Wiring Diagram (2 of 5) for Chevrolet Chevy Express G2002 2500:

• (4.3l, 5.0l, 5.7l)
• (6.5l, 8.1l: approx 4 cm from a/c comp clutch breakout, other: approx 14 cm from bulkhaed connector) s120
• (crossbody harn, 10 cm from keyless entry module breakout)
• (crossbody harn, approx 20 cm from power door lock relay breakout) s232
• (diesel: engine harn, approx 25 cm from bulkhead connector, gas: engine harn, approx 10 cm from underhood fuse block)
• (i/p harn, 7 cm from instrument cluster breakout) s218
• (i/p harn, 8 cm from hvac sw breakout) s219
• (i/p harn, approx 30 cm from bulkhead connector) s212
• (i/p harn, approx 8 cm into i/p relay center breakout) s222
• (i/p harness, approx 4 cm into power seat breakout)
• (i/p harness, approx 9 cm from hvac sw breakout) s227
• (in bose amplifiers breakout) s338
• (left body harn, 37 cm from from dome lamp breakout) s406
• (sun shade illum mirror harness, approx 7 cm from right sun shade lamp breakout) s308
• A.i.r. fuse 30a
• A/c compressor clutch relay
• A/c compressor fuse 10a
• Accessory power outlet
• B11
• Batt fuse 50a
• C13
• C202
• C210
• Center dome lamp
• Cig ltr fuse 13 20a
• Cigar lighter
• Convenience center
• Ctsy fuse 3 20a
• D13
• Data link connector (dlc)
• Daytime running lamps (drl) control module
• Dome lamp
• Door lock control module
• Door lock rear cargo switch
• Door lock relay
• Driver door lock switch
• Driver seat adjuster switch
• Drl fuse 15 15a
• Ecm-b fuse 20a
• From underhood b fuse block (diagram 1 of 5)
• From underhood fuse-relay center (diagram 1 of 5)
• Front dome lamp
• Front passenger door lock switch
• Front passenger seat adjuster switch
• Front reading lamps
• Fuel pump relay
• G201 (behind left kick panel)
• Garage door opener
• Hazard fuse 5 20a
• Hazard switch
• Headlamp switch
• Horn fuse 20a
• Horn relay
• Htd mir fuse 2 20a
• Hvac control assembly
• I/p compartment lamp
• I/p fuse block
• Illuminated entry module
• Instrument panel cluster (ipc)
• Left front stepwell lamp
• Left vanity mirror lamp
• Lighting fuse 40a
• Luxury
• Multi- function alarm module
• Nca
• Outside rearview mirror switch
• Park lps fuse 9 20a
• Passlock module
• Powertrain control module (pcm) (diesel)
• Powertrain control module (pcm) (gasoline)
• Pwr accy fuse a 25a
• Pwr aux fuse 7 25a
• Radio
• Radio-b fuse 19 10a
• Rear dome lamp
• Rear window defogger relay
• Red
• Remote control door lock receiver or vehicle immobilizer module (vim)
• Right front stepwell lamp
• Right side stepwell lamp
• Right vanity mirror lamp
• Rr defog fuse 22 25a
• S127
• S205
• S211 (i/p harness, approx 4 cm from park brake warning switch breakout)
• S221
• S228
• Secondary air injection (air) pump relay
• Security fuse 21 10a
• Side door lock control
• Stop fuse 1 20a
• Tcc/ brake switch
• Underhood fuse box
• Underhood fuse center
• Underhood lamp
• W/ electric a
• W/ upfitter
• W/o upfitter

Power Distribution Wiring Diagram (3 of 5) for Chevrolet Chevy Express G2002 2500

List of elements for Power Distribution Wiring Diagram (3 of 5) for Chevrolet Chevy Express G2002 2500:

• (8.1l)
• (engine harn, approx 14 cm from a/c compressor high pressure cutoff switch breakout) s132
• (engine harn, approx 15 cm into fuel injector harness breakout) s133
• (engine harn, approx 4 cm from fuel injector harness breakout) s132
• (engine harn, approx 4 cm from fuel injector harness breakout) s133
• (engine harn, approx 7 cm from injector harn breakout)
• (engine harness, approx 10 cm from a/c compressor clutch breakout) s117
• (engine jumper harn, approx 2 cm from the optical fuel temperature sensor breakout) s108
• (fed) (cal)
• 4.3l
• 4.3l, 5.0l, 5.7l
• 5.0l, 5.7l
• 6.5l
• 6.5l & 8.1l
• 8.1l
• A/c compressor clutch relay
• C11
• C12
• Ecm-1 fuse 20a
• Etc fuse 15a
• Exhaust pressure regulator (epr) solenoid
• From ignition switch (diagram 1 of 5)
• Fuel injectors
• Glow plug relay
• Ign-e fuse 10a
• Ignition coil
• Ignition coils
• Ignition control module (icm)
• Nca
• Pnk
• Power- train control module (pcm)
• Powertrain control module (pcm)
• S132
• S185
• S186
• S187
• S188
• S214 (i/p harn, approx 17 cm from bulkhead connector)
• Throttle actuator control (tac) module
• To eng-1 fuse (diagram 5 of 5)
• To i/p fuse block (diagram 4 of 5)
• Turbocharger wastegate solenoid
• Underhood fuse block
• Underhood fuse block center

Power Distribution Wiring Diagram (4 of 5) for Chevrolet Chevy Express G2002 2500

List of elements for Power Distribution Wiring Diagram (4 of 5) for Chevrolet Chevy Express G2002 2500:

• (eng harn, approx 75 cm from underhood fuse block) s139
• (entertainment harn, approx 11 cm from second bose amplifier breakout)
• (entertainment harn, red
• (i/p harness, approx 37 cm from bulkhead connector) s217
• (i/p harness, approx 4 cm from bulkhead connector breakout at base of steering column) s216
• A12
• Air bags fuse 10 10a
• Approx 16 cm from rear fuse block) s333
• Automatic transmission
• Auxiliary fuse block
• Auxiliary power fuse 15a
• B10
• B17
• Base
• Bose amp 1
• Bose amp 2
• Bose amp fuse 20a
• C103
• C210
• Convenience center
• Coolant level module (diesel)
• Daytime running lamp (drl) control module
• Except base
• Fog lamp fuse 10a
• Fog lamp relay
• Foglamp enable relay (luxury)
• From aux-b fuse (diagram 1 of 5)
• From ignition switch (diagram 1 of 5)
• From s214 (diagram 3 of 5)
• From upfitter provision relay (diagram 1 of 5)
• Fuel sender buffer module (diesel)
• G403 (right rear wheel well)
• Gauges fuse 4 10a
• Hazard switch
• Headlamp switch
• I/p fuse block
• Illum fuse 14 10a
• Inflatable restraint sensing & diagnositc module (sdm)
• Inside rearview mirror (luxury)
• Instrument panel cluster (ipc)
• Interior lamp control module
• Interior lights system
• Interior lights system (headlamp switch)
• Multi- function alarm module
• Park/neutral position switch
• Passlock module
• Pnk
• Power amplifier fuse 20a
• Power amplifier relay
• Powertrain control module (pcm) (4.3l, 5.0l, 5.7l)
• Rear accessory power outlet
• Rear fuse block
• Red
• Remote control door lock receiver or vehicle immobilizer module
• Rsa-t fuse 10a
• Rsa-t module
• S336
• Trans fuse 20 10a
• Turn b/u fuse 16 20a
• Vehicle speed sensor buffer (diesel)

Power Distribution Wiring Diagram (5 of 5) for Chevrolet Chevy Express G2002 2500

List of elements for Power Distribution Wiring Diagram (5 of 5) for Chevrolet Chevy Express G2002 2500:

• (4.3l: engine harn, approx 4 cm from icm breakout, 5.0l & 5.7l: engine harn, approx 12 cm from the heated right oxygen sensor breakout) s130
• (engine harn jumper, approx 4 cm into the engine shutoff solenoid breakout) s107
• (engine harn, approx 28 cm from generator breakout) s130
• 6.5l
• 8.1l
• Camshaft position (cmp) sensor
• Eng-1 fuse 20a
• Evaporative emission (evap) canister purge solenoid
• Evaporative emission (evap) canister purge valve
• Evaporative emission (evap) canister vent solenoid
• Evaporative emission (evap) canister vent valve
• From ecm-1 fuse (diagram 3 of 5)
• Fuel heater
• Fuel shutoff solenoid
• Fuel solenoid driver
• Heated oxygen sensor (ho2s) bank 1 sensor 1
• Heated oxygen sensor (ho2s) bank 1 sensor 2 (4.3l)
• Heated oxygen sensor (ho2s) bank 1 sensor 2 (calif)
• Heated oxygen sensor (ho2s) bank 1 sensor 3 (5.0l & 5.7l)
• Heated oxygen sensor (ho2s) bank 2 sensor 1
• Heated oxygen sensor (ho2s) bank 2 sensor 2
• Mass airflow (maf) sensor
• Pnk
• S130 (engine harn, left top of engine)
• Secondary air injection (air) pump relay
• Underhood fuse block
• Water- in-fuel sensor

POWER DOOR LOCKS

Power Door Lock Wiring Diagram for Chevrolet Chevy Express G2002 2500

List of elements for Power Door Lock Wiring Diagram for Chevrolet Chevy Express G2002 2500:

• (crossbody harn, near power lock relay breakout) s243
• Batt (b+)
• Battery (b+)
• C210
• Convenience center (under left side of dash)
• Data link connector (under left side of dash)
• Dome lamps
• Dome lmp off
• Door lock control module (on left kick panel)
• Driver door lock actuator
• Driver dr unlk
• Driver power door lock switch
• Front passenger door lock actuator
• Front passenger power door lock switch
• G200 (left kick panel)
• Gauges fuse 4 10a
• Ground
• Hot at all times
• Hot in run, bulb test or start
• I/p fuse block (on left lower kick panel)
• Ignition
• Int lts in
• Interior lights system
• Lock
• Lock out
• Lock sig
• Pass drs unlk
• Pnk
• Power door lock relay (behind center of dash)
• Program sig
• Pwr accy fuse a 25a
• Rear cargo door lock switch
• Rear door lock actuator
• Remote control door lock receiver (behind center of dash)
• Rr door unlk
• S206
• S216
• S221
• S228
• S241 (crossbody harness, near power lock relay breakout)
• S242 (crossbody harn, near power lock relay breakout)
• S244 (crossbody harness, near power lock relay breakout)
• Side door contactor (right "b" pillar)
• Side door jamb switch
• Side door lock actuator
• Side door sw
• Tan
• Unlock
• Unlock in
• Unlock sig

POWER MIRRORS

Power Mirror Wiring Diagram for Chevrolet Chevy Express G2002 2500

List of elements for Power Mirror Wiring Diagram for Chevrolet Chevy Express G2002 2500:

• (behind left kick panel) g201
• (left front door harness, approx 7 cm from power mirror motor connector)
• (right front door harness, approx 7 cm from power mirror switch connector)
• Ctsy fuse 3 20a
• Driver outside rearview mirror
• Hot at all times
• I/p fuse block
• Left mirror
• Outside rearview mirror switch
• Passenger outside rearview mirror
• Right mirror
• Right/ left motor
• S232
• S500
• S502
• S604
• Up/ down motor

POWER SEATS

Power Seat Wiring Diagrams for Chevrolet Chevy Express G2002 2500

List of elements for Power Seat Wiring Diagrams for Chevrolet Chevy Express G2002 2500:

• All- down
• All-up
• Back
• C306
• C307
• Down
• Driver seat adjuster switch
• Driver seat forward/ rearward, front vertical, rear vertical motor
• Entire seat
• For- ward
• Front down
• Front passenger seat adjuster switch
• Front passenger seat forward/ rearward, front vertical, rear vertical motor
• Front up
• G201 (behind left kick panel)
• Hot at all times
• I/p fuse block
• Left power seat forward/ rearward motor
• Left power seat front tilt motor
• Left power seat rear tilt motor
• Nca
• Pwr accy fuse a 25a
• Rear down
• Rear up
• Red
• Right power seat forward/ rearward motor
• Right power seat front tilt motor
• Right power seat rear tilt motor
• S256
• S257
• Tan

POWER WINDOWS

Power Window Wiring Diagram for Chevrolet Chevy Express G2002 2500

List of elements for Power Window Wiring Diagram for Chevrolet Chevy Express G2002 2500:

• (left kick panel) g200
• (left kick panel) g201
• C210
• Convenience center (left side of dash)
• Driver window motor
• Driver window switch
• Front passenger window motor
• Front passenger window switch
• Hot in accy & run
• I/p fuse block (on lower left kick panel)
• Interior lights system
• Left
• Power wdo fuse b 25a
• Right
• S229
• S500
• Tan

RADIO

Radio Wiring Diagrams, Except LT for Chevrolet Chevy Express G2002 2500

List of elements for Radio Wiring Diagrams, Except LT for Chevrolet Chevy Express G2002 2500:

• (left body harn, near center high mounted stoplamp breakout) s424
• (left front door harn, approx 4cm from the power winow breakout towards the radio speaker breakout) s504
• (left front door harn, approx 7cm from the power window break- out towards p500) s503
• (right body harn, near center high mounted stoplamp breakout) s423
• A10
• A11
• A12
• Acc voltage
• Antenna
• B10
• B11
• B12
• Base
• Battery
• Class 2 data
• Computer data lines system
• Convenience center (left side of dash)
• Dimming sig
• G201 (behind left kick panel)
• Ground
• Hot at all times
• Hot in acc or run
• I/p fuse block
• I/p lamp
• Interior lights system
• Left front door speaker
• Left front door tweeter speaker
• Left rear door speaker
• Left rear speaker
• Lf speaker (+)
• Lf speaker (-)
• Lr speaker (+)
• Lr speaker (-)
• Nca
• Orn
• Pnk
• Power antenna system
• Premium
• Radio
• Radio i fuse 17 10a
• Radio on sig
• Radio-b fuse 19 10a
• Red
• Rf speaker (+)
• Rf speaker (-)
• Right front door speaker
• Right front door tweeter speaker
• Right rear door speaker
• Right rear speaker
• Rr speaker (+)
• Rr speaker (-)
• S202
• S219
• S220
• S407 (left body harn, near rear tail lamp breakout, toward rear dome lamp breakout)
• S419 (left body harn, near rear tail lamp breakout, toward rear dome lamp breakout)
• S605 (right front door harn, approx 7cm from power window motor breakout towards p600)
• S606 (right front door harn, approx 7cm from power window switch breakout, toward c212 breakout)
• Tan
• W/ upfitter
• W/o upfitter

Radio Wiring Diagrams, LT (1 of 4) for Chevrolet Chevy Express G2002 2500

List of elements for Radio Wiring Diagrams, LT (1 of 4) for Chevrolet Chevy Express G2002 2500:

• (behind left kick panel) g201
• (in left front door harn, approx 7 cm from the power window motor breakout)
• A10
• A11
• A12
• Acc voltage
• Amp voltage
• Antenna
• B10
• B11
• B12
• Bare
• Battery
• Bose 200amp amplifier 1 (above right interior panel above rear wheelhouse)
• Class 2 data
• Computer data lines system
• Dimming sig
• Drain
• Front 100-watt audio amplifier (under front passenger seat)
• Front bass speaker
• Front speaker (+)
• Front speaker (-)
• Front subwfr (+)
• Front subwfr (-)
• G106 (left side of safety wall)
• G203 (behind left kick panel)
• G302 (right "b" pillar)
• G303 (left "b" pillar)
• G304
• G304 (right rear wheel well)
• Ground
• Hot at all times
• Hot in acc or run
• I/p fuse block (left lower kick panel)
• I/p lamp
• Information not available
• Interior lights system
• L b pillar sp (+)
• L b pillar sp (-)
• Left b-pillar speaker
• Left front door speaker
• Lf lo aud sig (+)
• Lf lo aud sig (-)
• Lf speaker (+)
• Lf speaker (-)
• Lo spker sig (-) front aud sig (-)
• Lo spker sig (-) rear aud sig (-)
• Lr lo aud sig (+)
• Lr lo aud sig (-)
• Nca
• Pnk
• Power amplifier fuse 20a
• R b pillar sp (+)
• R b pillar sp (-)
• Radio
• Radio i fuse 17 10a
• Radio on sig
• Radio-b fuse 19 10a
• Rear 100-watt audio amplifier (behind right interior panel, rear of rear (wheelhouse)
• Rear fuse block
• Rear fuse block (rear of driver door, behind left interior panel)
• Rear speaker (+)
• Rear speaker (-)
• Rear woofer
• Remote radio sig
• Remote radio volt
• Rf lo aud sig (+)
• Rf lo aud sig (-)
• Rf speaker (+)
• Rf speaker (-)
• Right b-pillar speaker
• Rr lo aud sid (-)
• Rr lo aud sig (+)
• Rr lo aud sig (-)
• Rsa enable sig
• Rsa-t fuse 10a
• Rsa-t module (behind left interior panel rear of driver door)
• S202
• S219
• S220
• S330
• S331
• S332
• S334
• S335
• S503
• Switch amplifier power relay
• Tan
• Vcp/dvd power sig

Radio Wiring Diagrams, LT (2 of 4) for Chevrolet Chevy Express G2002 2500

List of elements for Radio Wiring Diagrams, LT (2 of 4) for Chevrolet Chevy Express G2002 2500:

• "b" pillar)
• (in enter- tainment harn, approx 7 cm from breakout to g304)
• (in entertainment harn, approx 15 cm from breakout to g304)
• (in entertainment harn, approx 19 cm from breakout to g304)
• (in right front door harn, approx 7cm from the power window motor breakout) s605
• A nca
• A10
• A11
• A12
• Amp voltage
• B nca
• B10
• B11
• B12
• Bare
• Battery
• Bose 200amp amplifier 2 (above right interior panel above rear wheelhouse)
• Bose amplifier fuse 20a
• Drain
• G303 (left
• G304 (right rear wheel well)
• Ground
• Hot at all times
• L mid hl spkr (-)
• Left mid headliner speaker
• Left rear headliner speaker
• Lf speaker (-)
• Lr hl speaker (+)
• Lr hl speaker (-)
• Lr lo aud sig (+)
• Lr lo aud sig (-)
• Nca
• R mid hl spkr (+)
• R mid hl spkr (-)
• Rear fuse block (rear of driver door, behind left interior panel)
• Rear subwfr (-)
• Rear suwfr (+)
• Red
• Right front door speaker
• Right mid headliner speaker
• Right rear headliner speaker
• Rr hl spkr (+)
• Rr hl spkr (-)
• Rr lo aud sid (-)
• Rr lo aud sig (+)
• Rr lo aud sig (-)
• Rsa-t module (behind left interior panel rear of driver door)
• S331
• S332
• S336
• S340
• S341 (in enter- tainment harn, approx 11 cm from breakout to g304)
• S342
• S343
• S606 (in right front door harn, approx 7cm from the power window switch breakout)
• Serial data
• Tan
• Vcp aud left (+)
• Vcp aud right (+)
• Vcp sig (+)
• Vcp sig (-)
• Vcp/dvd power
• Vcp/dvd pwr
• Video cassette player (vcp)
• Video sig (+)
• Video sig (-)

Radio Wiring Diagrams, LT (3 of 4) for Chevrolet Chevy Express G2002 2500

List of elements for Radio Wiring Diagrams, LT (3 of 4) for Chevrolet Chevy Express G2002 2500:

• Aux aud left (+)
• Aux aud right (+)
• Aux audio left sig (+)
• Aux audio right sig (+)
• Aux audio sig (-)
• Aux video hi sig
• Aux video high sig
• Aux video low sig
• Bare
• Battery
• Drain
• Front video display
• G303 (left "b" pillar)
• Game box (forward of right rear wheelhouse)
• Ground
• I/p lamp voltage
• Pnk
• Radio on sig
• Red
• Rsa-t module (behind left interior panel rear of driver door)
• S332
• S394
• Tan
• Vcp aud left (+)
• Vcp aud right (+)
• Vcp audio left sig (+)
• Vcp audio sig (-)
• Vcp audio sig right (+)
• Vcp ir serial data
• Vcp r pwr sense
• Vcp rear serial data
• Vcp select sig
• Vcp serial data
• Vcp standby sig
• Vcp video sig (+)
• Vcp video sig (-)
• Vcp/dvd pwr enable

Radio Wiring Diagrams, LT (4 of 4) for Chevrolet Chevy Express G2002 2500

List of elements for Radio Wiring Diagrams, LT (4 of 4) for Chevrolet Chevy Express G2002 2500:

• Amp relay cntrl
• Aux audio left sig (+)
• Aux audio right sig (+)
• Aux audio sig (-)
• Aux audleft sig (+)
• Aux audright sig (+)
• Aux video high sig
• Aux video low sig
• Bare
• Battery
• C310
• C311
• Drain
• Front video display
• G106 (left side of safety wall)
• G303 (left "b" pillar)
• Ground
• I/p lamp voltage
• Information not available
• Interior lights system
• Left (+)
• Left (-)
• Lr lo (+)
• Lr lo (-)
• Lr lo aud sig (+)
• Lr lo aud sig (-)
• Nca
• Pnk
• Rear seat audio (rsa) control (in rear overhead console)
• Rear video display
• Red
• Remote radio sig
• Remote radio volt
• Right (+)
• Right (-)
• Rr lo (+)
• Rr lo (-)
• Rr lo aud sig (+)
• Rr lo aud sig (-)
• Rsa enable cntrl
• Rsa-t module (behind left interior panel rear of driver door)
• S332
• Tan
• Vcp aud left sig (+)
• Vcp aud sig right (+)
• Vcp audio left sig (+)
• Vcp audio sig (-)
• Vcp audio sig right (+)
• Vcp ir serial data
• Vcp pwr standby sig
• Vcp pwr stndby
• Vcp rear pwr sig
• Vcp rear serial data
• Vcp serial data
• Vcp video sel sig
• Vcp video sig (+)
• Vcp video sig (-)

SHIFT INTERLOCKS

Shift Interlock Wiring Diagram for Chevrolet Chevy Express G2002 2500

List of elements for Shift Interlock Wiring Diagram for Chevrolet Chevy Express G2002 2500:

• A/t shift lock solenoid (right side of steering column)
• G201 (behind left kick panel)
• Hot in run or start
• I/p fuse block
• Park/ neutral position switch (left side of transmission) c1
• Pnk
• S201
• S217 pnk
• Turn/ hazard switch
• Turn/bu fuse 16 20a

STARTING/CHARGING

Charging Wiring Diagram for Chevrolet Chevy Express G2002 2500

List of elements for Charging Wiring Diagram for Chevrolet Chevy Express G2002 2500:

• (not used)
• (right side of engine compartment, near fender well) g100
• B16
• B17
• Battery
• Charge indicator
• Fusible link (10 ga- rust)
• Gauges fuse 4 10a
• Generator l
• Hot in run & start
• I/p fuse block (on left lower kick panel)
• Instrument cluster
• Pnk
• Power distribution system
• Powertrain control module (pcm)
• Red
• S216
• Starting/charging system (starting circuit)

Starting Wiring Diagram for Chevrolet Chevy Express G2002 2500

List of elements for Starting Wiring Diagram for Chevrolet Chevy Express G2002 2500:

• (right side of engine compartment, near fender well) g100
• Accy
• Auxiliary battery
• Batt
• Battery
• Battery junction block
• Crank fuse 8 10a
• Diesel
• Fusible link (10 ga- rust)
• G103 (6.5l, 4.3l: near generator bracket) (5.0l, 5.7l: rear of right cylinder head) (8.1l: rear of left cylinder head)
• G300 (left frame rail, near auxiliary battery)
• Gas
• Generator
• Hold- in winding
• I/p fuse block (on left lower kick panel)
• Ign-a fuse 40a
• Ignition switch
• Label stud
• Lock
• Off
• Orange
• Park/neutral position switch (on left side of transmission)
• Power distribution system
• Pull- in winding
• Red
• Run
• Start
• Starter motor
• Starter relay (in underhood fuse/relay center)
• Underhood fuse/relay center (on left side of engine compartment)
• White

SUPPLEMENTAL RESTRAINTS

Supplemental Restraint Wiring Diagram for Chevrolet Chevy Express G2002 2500

List of elements for Supplemental Restraint Wiring Diagram for Chevrolet Chevy Express G2002 2500:

• (behind left kick panel, near i/p fuse block) g202
• (behind left kick panel, near power door lock control module) g201
• (in i/p harness, approximately 4 cm (2 in) from 48 cavity connector at base of steering column, pnk
• 2 ohms
• 4 cm (2 in) from park brake warning switch breakout) s201
• A10
• A11
• A12
• A13
• A14
• A15
• A16
• A17
• A18
• Air bag indicator
• Air bags fuse 10 10a
• B17
• Base
• Class 2 serial data
• Data link connector (dlc) (partial) (under left side of dash)
• Gauges fuse 4 10a
• Ground
• High control
• Hot in run & start
• I/p fuse block (on left lower kick panel)
• Ignition
• Indicator control
• Inflatable restraint diagnostic resistor
• Inflatable restraint front end discriminating sensor (on lower center of radiator support)
• Inflatable restraint ip module
• Inflatable restraint sensing & diagnostic module (under left front seat)
• Inflatable restraint steering wheel module
• Inflatable restraint steering wheel module coil
• Instrument panel cluster (ipc)
• Low control
• Multi-function alarm module (under left side of dash)
• Nca
• Ohms
• Over gvw
• Pnk
• S207 (in i/p harness, approximately 6 cm (2 in) from park brake warning switch breakout, toward data link connector (dlc))
• S209 (in i/p harness, approximately 39 cm (16 in) from 36-way in-line connector, left rear of engine compartment at firewall, toward inflatable restraint sensing & diagnostic module)
• Seat belt switch
• Seat belt switch (open when buckled) (at driver's stationary belt connector)
• Sensor signal
• Shorting bar
• Toward instrument cluster breakout) s216

TRANSMISSION

4.3L

4.3L VIN W, A/T Wiring Diagram, 4L60-E for Chevrolet Chevy Express G2002 2500

List of elements for 4.3L VIN W, A/T Wiring Diagram, 4L60-E for Chevrolet Chevy Express G2002 2500:

• (4.3l: left side of engine compt, near fenderwell)
• (5.0l & 5.7l)
• (5.0l & 5.7l: near thermostat housing) g101
• (dash harn, in breakout to power seat harn)
• (engine harn, at breakout to a/c comp clutch)
• (near breakout to dlc) s207
• (near breakout to pcm)
• (under left side of dash) data link connector
• +5v
• 1-2 shift solenoid
• 1-2 ss
• 2-3 shift solenoid
• 2-3 ss
• 3-2 shift solenoid
• 3-2 ss
• 4.3l
• 5.0l & 5.7l
• 5.0l, 5.7l
• A/t fluid pressure manual valve position switch
• Abs relay, electronic pwr brake booster, brake ctrl module
• Anti-lock brakes system
• Automatic transmission (4l60-e)
• B10
• B17
• Brake fuse 18 10a
• Brk sw
• C350
• Cls 2 data
• Computer data lines system
• Cruise control system
• D3, d2
• D4, d2
• Ecm1 fuse 20a
• Ecmb fuse 20a
• Ect sig
• Electronic brake control module
• Engine coolant temperature sensor (top front of engine)
• Fluid temp sensor
• Fuel injectors, ignition coil
• G103 (4.3l: at the
• Gauges fuse 4 10a
• Generator bracket) (5.0l & 5.7l: rear of right cylinder head)
• Gnd
• Hot at all times
• Hot in off, run & start
• Hot in run
• Hot in run & start
• I/p fuse block (lower left kick panel)
• Ign
• Ignition control module, fuel injectors, ignition coil (4.3l)
• Instrument panel cluster (ipc)
• Lo ref
• Malfunction indicator lamp
• Mil ctrl
• Park/neutral position switch (left side of transmission)
• Passlock module, multi- function alarm module, interior lamp control module, drl module, headlamp module, inside rearview mirror, foglamp enable relay, drl rear park lamp relay
• Pc sol hi
• Pc sol lo
• Pnk
• Powertrain control module (on left inner fender panel)
• Press ctrl solenoid
• Prnd a
• Prnd b
• Prnd c
• Prnd p
• Prnd321
• Range b
• Range c
• Red
• Red a
• Rev, lo
• S101
• S102
• S120
• S132
• S133
• S139
• S153
• S154
• S161
• S162
• S163
• S164
• S210
• S216
• S231
• Sens gnd
• Tan
• Tcc pwm
• Tcc pwm solenoid
• Tcc sol
• Tcc solenoid
• Tcc/brake switch (on brake pedal support)
• Tft sens sig
• Throttle position sensor (left side of throttle body)
• Tp sig
• Trans fuse 20 10a
• Trans rng a
• Underhood fuse block (left side of engine compt)
• Vehicle speed sensor (right side of transmission)
• Vss hi
• Vss lo

5.0L

5.0L VIN M, A/T Wiring Diagram, 4L60-E for Chevrolet Chevy Express G2002 2500

List of elements for 5.0L VIN M, A/T Wiring Diagram, 4L60-E for Chevrolet Chevy Express G2002 2500:

• (4.3l: left side of engine compt, near fenderwell)
• (5.0l & 5.7l)
• (5.0l & 5.7l: near thermostat housing) g101
• (dash harn, in breakout to power seat harn)
• (engine harn, at breakout to a/c comp clutch)
• (near breakout to dlc) s207
• (near breakout to pcm)
• (under left side of dash) data link connector
• +5v
• 1-2 shift solenoid
• 1-2 ss
• 2-3 shift solenoid
• 2-3 ss
• 3-2 shift solenoid
• 3-2 ss
• 4.3l
• 5.0l & 5.7l
• 5.0l, 5.7l
• A/t fluid pressure manual valve position switch
• Abs relay, electronic pwr brake booster, brake ctrl module
• Anti-lock brakes system
• Automatic transmission (4l60-e)
• B10
• B17
• Brake fuse 18 10a
• Brk sw
• C350
• Cls 2 data
• Computer data lines system
• Cruise control system
• D3, d2
• D4, d2
• Ecm1 fuse 20a
• Ecmb fuse 20a
• Ect sig
• Electronic brake control module
• Engine coolant temperature sensor (top front of engine)
• Fluid temp sensor
• Fuel injectors, ignition coil
• G103 (4.3l: at the
• Gauges fuse 4 10a
• Generator bracket) (5.0l & 5.7l: rear of right cylinder head)
• Gnd
• Hot at all times
• Hot in off, run & start
• Hot in run
• Hot in run & start
• I/p fuse block (lower left kick panel)
• Ign
• Ignition control module, fuel injectors, ignition coil (4.3l)
• Instrument panel cluster (ipc)
• Lo ref
• Malfunction indicator lamp
• Mil ctrl
• Park/neutral position switch (left side of transmission)
• Passlock module, multi- function alarm module, interior lamp control module, drl module, headlamp module, inside rearview mirror, foglamp enable relay, drl rear park lamp relay
• Pc sol hi
• Pc sol lo
• Pnk
• Powertrain control module (on left inner fender panel)
• Press ctrl solenoid
• Prnd a
• Prnd b
• Prnd c
• Prnd p
• Prnd321
• Range b
• Range c
• Red
• Red a
• Rev, lo
• S101
• S102
• S120
• S132
• S133
• S139
• S153
• S154
• S161
• S162
• S163
• S164
• S210
• S216
• S231
• Sens gnd
• Tan
• Tcc pwm
• Tcc pwm solenoid
• Tcc sol
• Tcc solenoid
• Tcc/brake switch (on brake pedal support)
• Tft sens sig
• Throttle position sensor (left side of throttle body)
• Tp sig
• Trans fuse 20 10a
• Trans rng a
• Underhood fuse block (left side of engine compt)
• Vehicle speed sensor (right side of transmission)
• Vss hi
• Vss lo

5.7L

5.7L VIN R, A/T Wiring Diagram, 4L60-E for Chevrolet Chevy Express G2002 2500

List of elements for 5.7L VIN R, A/T Wiring Diagram, 4L60-E for Chevrolet Chevy Express G2002 2500:

• (4.3l: left side of engine compt, near fenderwell)
• (5.0l & 5.7l)
• (5.0l & 5.7l: near thermostat housing) g101
• (dash harn, in breakout to power seat harn)
• (engine harn, at breakout to a/c comp clutch)
• (near breakout to dlc) s207
• (near breakout to pcm)
• (under left side of dash) data link connector
• +5v
• 1-2 shift solenoid
• 1-2 ss
• 2-3 shift solenoid
• 2-3 ss
• 3-2 shift solenoid
• 3-2 ss
• 4.3l
• 5.0l & 5.7l
• 5.0l, 5.7l
• A/t fluid pressure manual valve position switch
• Abs relay, electronic pwr brake booster, brake ctrl module
• Anti-lock brakes system
• Automatic transmission (4l60-e)
• B10
• B17
• Brake fuse 18 10a
• Brk sw
• C350
• Cls 2 data
• Computer data lines system
• Cruise control system
• D3, d2
• D4, d2
• Ecm1 fuse 20a
• Ecmb fuse 20a
• Ect sig
• Electronic brake control module
• Engine coolant temperature sensor (top front of engine)
• Fluid temp sensor
• Fuel injectors, ignition coil
• G103 (4.3l: at the
• Gauges fuse 4 10a
• Generator bracket) (5.0l & 5.7l: rear of right cylinder head)
• Gnd
• Hot at all times
• Hot in off, run & start
• Hot in run
• Hot in run & start
• I/p fuse block (lower left kick panel)
• Ign
• Ignition control module, fuel injectors, ignition coil (4.3l)
• Instrument panel cluster (ipc)
• Lo ref
• Malfunction indicator lamp
• Mil ctrl
• Park/neutral position switch (left side of transmission)
• Passlock module, multi- function alarm module, interior lamp control module, drl module, headlamp module, inside rearview mirror, foglamp enable relay, drl rear park lamp relay
• Pc sol hi
• Pc sol lo
• Pnk
• Powertrain control module (on left inner fender panel)
• Press ctrl solenoid
• Prnd a
• Prnd b
• Prnd c
• Prnd p
• Prnd321
• Range b
• Range c
• Red
• Red a
• Rev, lo
• S101
• S102
• S120
• S132
• S133
• S139
• S153
• S154
• S161
• S162
• S163
• S164
• S210
• S216
• S231
• Sens gnd
• Tan
• Tcc pwm
• Tcc pwm solenoid
• Tcc sol
• Tcc solenoid
• Tcc/brake switch (on brake pedal support)
• Tft sens sig
• Throttle position sensor (left side of throttle body)
• Tp sig
• Trans fuse 20 10a
• Trans rng a
• Underhood fuse block (left side of engine compt)
• Vehicle speed sensor (right side of transmission)
• Vss hi
• Vss lo

WARNING SYSTEMS

Warning System Wiring Diagrams for Chevrolet Chevy Express G2002 2500

List of elements for Warning System Wiring Diagrams for Chevrolet Chevy Express G2002 2500:

• (under left front seat)
• A12
• A15
• A16
• B14
• Base
• Battery input
• C200
• C210
• Convenience center (under left side of dash)
• Driver door jamb switch
• Except base
• Fasten belts out
• G201 (left kick panel)
• Gauges fuse 4 10a
• Ground
• Hazard fuse 5 20a
• Hot at all times
• Hot in park or head
• Hot in run or start
• I/p fuse block (on lower left kick panel)
• Ignition key alarm switch
• Ignition on input
• Illum mir fuse 14 10a
• Inflatable restraint sensing & diagnostic module (sdm)
• Instrument cluster system
• Instrument panel cluster (ipc)
• Key-in sw input
• Left front seat belt switch (opens with belt buckled) (in driver's stationary belt connector)
• Lights on input
• Multi-function alarm module (under left side of dash)
• Nca
• Pnk
• S201
• S202
• S206
• S209 (i/p harn, near sdm breakout)
• S216
• S222
• S223
• S500
• Safety belt input
• Safety belt lamp
• Speed input
• Tan

WIPER/WASHER

Wiper/Washer Wiring Diagram for Chevrolet Chevy Express G2002 2500

List of elements for Wiper/Washer Wiring Diagram for Chevrolet Chevy Express G2002 2500:

• Delay
• G201 (behind left kick panel)
• Hot in accy & run
• I/p fuse block (on lower left kick panel)
• Inst wipe
• Inst wipe k
• Low
• Mist
• Mist off
• Off
• Red
• S201
• S252
• Solid state
• Wash
• Washer switch
• Windshield washer fluid pump (on left front of engine compartment, at washer reservoir)
• Windshield washer/ wiper switch
• Windshield wiper motor (on left side of firewall)
• Wiper fuse 11 25a
• Wiper switch