Diagram sections — 26 (69 total)
AIR CONDITIONING ANTI-LOCK BRAKES ANTI-THEFT COMPUTER DATA LINES CRUISE CONTROL DEFOGGERS ENGINE PERFORMANCE EXTERIOR LIGHTS GROUND DISTRIBUTION HEADLIGHTS HORN INSTRUMENT CLUSTER INTERIOR LIGHTS POWER ANTENNA POWER DISTRIBUTION POWER DOOR LOCKS POWER MIRRORS POWER SEATS POWER WINDOWS RADIO SHIFT INTERLOCKS STARTING/CHARGING SUPPLEMENTAL RESTRAINTS TRANSMISSION WARNING SYSTEMS WIPER/WASHER
AIR CONDITIONING
4.3L 4.3L VIN W, Compressor Wiring Diagram for Chevrolet Chevy Express G2000 2500 List of elements for 4.3L VIN W, Compressor Wiring Diagram for Chevrolet Chevy Express G2000 2500: 26 (in eng harness) s101 (7.4l) (in eng harness) A/c A/c compress0r high pressure cutoff switch (rear of a/c compressor) A/c compress0r low pressure cutoff switch (in refrigerant line) A/c compressor clutch coil A/c compressor enable relay (in underhood fuse/relay center) A/c fuse 10a Bi-lev Blnd Def G119 (right side of engine) Heat Hot at all times Hot in run Hot in run or start Htr-a/c fuse 12 20a Hvac control module I/p fuse block Ign e fuse 10a Max Off Pnk S215 (i/p harn, 4 cm from radio breakout) Underhood fuse/relay center Vehicle control module (left side of engine compartment) Vent 4.3L VIN W, Heater Wiring Diagram for Chevrolet Chevy Express G2000 2500 List of elements for 4.3L VIN W, Heater Wiring Diagram for Chevrolet Chevy Express G2000 2500: 48 (i/p harness, 4 cm from radio breakout) (left rear of cabin, behind rear wheelwell) (rear a/c harness, 30 cm from blower motor resistor breakout) (rear a/c harness, 37 cm from blower motor resistor breakout) (rear a/c harness, 67 cm from blower motor resistor breakout) (school bus) Auxiliary blower motor (left rear of cabin, behind rear wheelwell) Auxiliary blower motor high speed relay Auxiliary blower motor low speed relay Auxiliary blower motor medium speed relay Auxiliary blower motor resistor (left rear of cabin, behind rear wheelwell) Auxiliary blower motor switch Blend Blower fuse 60a Blower motor Blower motor resistor/relay (right side of front blower motor) C1 f C2 c C202 Convenience center Def G119 (right side of engine) G200 (behind left kick panel) G416 (left rear frame rail) g402 (left rear of vehicle) Heat Heater controller Hot at all times Hot in run Hot in run or start Htr-a/c fuse 12 20a I/p fuse block Interior lights system Med Off Red Rr blower fuse 30a Rr hvac fuse 24 10a S202 (dash harn, 7 cm from vssb breakout) S215 S327 S400 (left body harness, near chmsl) S405 S412 S413 Tan Temperature valve actuator motor (on hvac plenum) Underhood fuse/relay center Vent 4.3L VIN W, Manual A/C Wiring Diagram, Cargo Van for Chevrolet Chevy Express G2000 2500 List of elements for 4.3L VIN W, Manual A/C Wiring Diagram, Cargo Van for Chevrolet Chevy Express G2000 2500: 75 (aux hvac harn, 14 cm from aux hvac module breakout) (below dash, right side of hvac plenum) temperature valve actuator motor (i/p harn, 4 cm from radio breakout) (i/p harn, 7 cm from vssb breakout) (in engine harness) (in underhood fuse/relay center) (left body harn, left side of cabin) (left rear interior) (left rear of cabin, behind rear wheelwell) (left rear of vehicle) (rear a/c harn, 67 cm from blower motor resistor breakout) (rear a/c harn, 7 cm from o/s air vlv actuator breakout) (rear a/c harness, 30 cm from blower motor resistor/relay breakout) (rear aux hvac harn, 29 cm from rear aux hvac module breakout) A/c A/c compressor clutch coil A/c compressor enable relay (in underhood fuse/relay center) A/c compressor high pressure cutoff switch (rear of a/c compressor) A/c compressor low pressure cutoff switch (in refrigerant line) A/c fuse 10a Auxiliary blower motor Auxiliary blower motor high speed relay Auxiliary blower motor low speed relay Auxiliary blower motor medium speed relay Auxiliary blower motor resistor (left rear of cabin, behind rear wheelwell) Bi-lev Blend Blower fuse 60a Blower motor Blower motor resistor/relay (right side of front blower motor) C2 c C202 C3 d3 Convenience center D3 c3 Def Diode Front auxiliary hvac control module G119 (right side of engine) G200 (left kick panel) G402 Heat Heater & a/c controller Hot at all times Hot in run Hot in run or start Htr-a/c fuse 12 20a I/p fuse block Ign e fuse 10a Interior lights system Max Med Off Pnk Rear auxiliary mode valve and seal assy (left rear interior) Rear auxiliary temperature Red Rr blower fuse 30a Rr hvac fuse 24 10a S202 S215 S307 S318 S404 S405 (rear a/c harn, 37 cm from blower resistor breakout) S411 S412 S413 Tan Temp Under- hood fuse/ relay center Valve assy Vehicle control module (left side of engine compartment) Vent Vent mode 4.3L VIN W, Manual A/C Wiring Diagram, Passenger Van for Chevrolet Chevy Express G2000 2500 List of elements for 4.3L VIN W, Manual A/C Wiring Diagram, Passenger Van for Chevrolet Chevy Express G2000 2500: 81 (aux hvac harn, 14 cm from aux hvac module breakout) (aux hvac harn, 26 cm from frt aux hvac mod breakout) (aux hvac harn, 57 cm from frt aux hvac module breakout) (below dash, right side of hvac plenum) temperature valve actuator motor (front interior roof panel) (i/p harn, 7 cm from vssb breakout) (i/p harn, 4 cm from radio breakout) s215 (in engine harness) (in underhood fuse/relay center) (left body harn, left side of cabin) (left rear interior) (left rear of cabin, behind rear wheelwell) (rear a/c harn, 67 cm from o/s air vlv actuator breakout) (rear a/c harn, 7 cm from blower motor resistor breakout) (rear a/c harness, 30 cm from blower motor resistor/relay breakout) (rear aux hvac harn, 29 cm from rear aux hvac module breakout) (rear hvac harn, 13 cm from frt aux hvac module breakout) A/c A/c compressor clutch coil A/c compressor enable relay (in underhood fuse/relay center) A/c compressor high pressure cutoff switch (rear of a/c compressor) A/c compressor low pressure cutoff switch (in refrigerant line) A/c fuse 10a Auxiliary blower motor Auxiliary blower motor high speed relay Auxiliary blower motor low speed relay Auxiliary blower motor medium speed relay Auxiliary blower motor resistor (left rear of cabin, behind rear wheelwell) Bi-lev Blend Blower fuse 60a Blower motor Blower motor resistor/relay (right side of front blower motor) C2 c C202 Convenience center Def Diode Front auxiliary hvac control module G119 (right side of engine) G200 (left kick panel) G402 (left rear of vehicle) Heat Heater & a/c control logic module Heater & a/c controller Hot at all times Hot in run Hot in run or start Htr-a/c fuse 12 20a I/p fuse block Ign e fuse 10a Interior lights system Max Med Off Pnk Rear auxiliary hvac control module Rear auxiliary mode valve and seal assy (left rear interior) Rear auxiliary temperature Red Rr blower fuse 30a Rr ctrl Rr hvac fuse 24 10a S202 S307 S318 S319 S320 S321 S404 S405 (rear a/c harn, 37 cm from blower resistor breakout) S411 S412 S413 Tan Temp Under- hood fuse/ relay center Valve assy Vehicle control module (on left side of engine compartment) Vent Vent mode
5.0L 5.0L VIN M, Compressor Wiring Diagram for Chevrolet Chevy Express G2000 2500 List of elements for 5.0L VIN M, Compressor Wiring Diagram for Chevrolet Chevy Express G2000 2500: 26 (in eng harness) s101 (7.4l) (in eng harness) A/c A/c compress0r high pressure cutoff switch (rear of a/c compressor) A/c compress0r low pressure cutoff switch (in refrigerant line) A/c compressor clutch coil A/c compressor enable relay (in underhood fuse/relay center) A/c fuse 10a Bi-lev Blnd Def G119 (right side of engine) Heat Hot at all times Hot in run Hot in run or start Htr-a/c fuse 12 20a Hvac control module I/p fuse block Ign e fuse 10a Max Off Pnk S215 (i/p harn, 4 cm from radio breakout) Underhood fuse/relay center Vehicle control module (left side of engine compartment) Vent 5.0L VIN M, Heater Wiring Diagram for Chevrolet Chevy Express G2000 2500 List of elements for 5.0L VIN M, Heater Wiring Diagram for Chevrolet Chevy Express G2000 2500: 48 (i/p harness, 4 cm from radio breakout) (left rear of cabin, behind rear wheelwell) (rear a/c harness, 30 cm from blower motor resistor breakout) (rear a/c harness, 37 cm from blower motor resistor breakout) (rear a/c harness, 67 cm from blower motor resistor breakout) (school bus) Auxiliary blower motor (left rear of cabin, behind rear wheelwell) Auxiliary blower motor high speed relay Auxiliary blower motor low speed relay Auxiliary blower motor medium speed relay Auxiliary blower motor resistor (left rear of cabin, behind rear wheelwell) Auxiliary blower motor switch Blend Blower fuse 60a Blower motor Blower motor resistor/relay (right side of front blower motor) C1 f C2 c C202 Convenience center Def G119 (right side of engine) G200 (behind left kick panel) G416 (left rear frame rail) g402 (left rear of vehicle) Heat Heater controller Hot at all times Hot in run Hot in run or start Htr-a/c fuse 12 20a I/p fuse block Interior lights system Med Off Red Rr blower fuse 30a Rr hvac fuse 24 10a S202 (dash harn, 7 cm from vssb breakout) S215 S327 S400 (left body harness, near chmsl) S405 S412 S413 Tan Temperature valve actuator motor (on hvac plenum) Underhood fuse/relay center Vent 5.0L VIN M, Manual A/C Wiring Diagram, Cargo Van for Chevrolet Chevy Express G2000 2500 List of elements for 5.0L VIN M, Manual A/C Wiring Diagram, Cargo Van for Chevrolet Chevy Express G2000 2500: 75 (aux hvac harn, 14 cm from aux hvac module breakout) (below dash, right side of hvac plenum) temperature valve actuator motor (i/p harn, 4 cm from radio breakout) (i/p harn, 7 cm from vssb breakout) (in engine harness) (in underhood fuse/relay center) (left body harn, left side of cabin) (left rear interior) (left rear of cabin, behind rear wheelwell) (left rear of vehicle) (rear a/c harn, 67 cm from blower motor resistor breakout) (rear a/c harn, 7 cm from o/s air vlv actuator breakout) (rear a/c harness, 30 cm from blower motor resistor/relay breakout) (rear aux hvac harn, 29 cm from rear aux hvac module breakout) A/c A/c compressor clutch coil A/c compressor enable relay (in underhood fuse/relay center) A/c compressor high pressure cutoff switch (rear of a/c compressor) A/c compressor low pressure cutoff switch (in refrigerant line) A/c fuse 10a Auxiliary blower motor Auxiliary blower motor high speed relay Auxiliary blower motor low speed relay Auxiliary blower motor medium speed relay Auxiliary blower motor resistor (left rear of cabin, behind rear wheelwell) Bi-lev Blend Blower fuse 60a Blower motor Blower motor resistor/relay (right side of front blower motor) C2 c C202 C3 d3 Convenience center D3 c3 Def Diode Front auxiliary hvac control module G119 (right side of engine) G200 (left kick panel) G402 Heat Heater & a/c controller Hot at all times Hot in run Hot in run or start Htr-a/c fuse 12 20a I/p fuse block Ign e fuse 10a Interior lights system Max Med Off Pnk Rear auxiliary mode valve and seal assy (left rear interior) Rear auxiliary temperature Red Rr blower fuse 30a Rr hvac fuse 24 10a S202 S215 S307 S318 S404 S405 (rear a/c harn, 37 cm from blower resistor breakout) S411 S412 S413 Tan Temp Under- hood fuse/ relay center Valve assy Vehicle control module (left side of engine compartment) Vent Vent mode 5.0L VIN M, Manual A/C Wiring Diagram, Passenger Van for Chevrolet Chevy Express G2000 2500 List of elements for 5.0L VIN M, Manual A/C Wiring Diagram, Passenger Van for Chevrolet Chevy Express G2000 2500: 81 (aux hvac harn, 14 cm from aux hvac module breakout) (aux hvac harn, 26 cm from frt aux hvac mod breakout) (aux hvac harn, 57 cm from frt aux hvac module breakout) (below dash, right side of hvac plenum) temperature valve actuator motor (front interior roof panel) (i/p harn, 7 cm from vssb breakout) (i/p harn, 4 cm from radio breakout) s215 (in engine harness) (in underhood fuse/relay center) (left body harn, left side of cabin) (left rear interior) (left rear of cabin, behind rear wheelwell) (rear a/c harn, 67 cm from o/s air vlv actuator breakout) (rear a/c harn, 7 cm from blower motor resistor breakout) (rear a/c harness, 30 cm from blower motor resistor/relay breakout) (rear aux hvac harn, 29 cm from rear aux hvac module breakout) (rear hvac harn, 13 cm from frt aux hvac module breakout) A/c A/c compressor clutch coil A/c compressor enable relay (in underhood fuse/relay center) A/c compressor high pressure cutoff switch (rear of a/c compressor) A/c compressor low pressure cutoff switch (in refrigerant line) A/c fuse 10a Auxiliary blower motor Auxiliary blower motor high speed relay Auxiliary blower motor low speed relay Auxiliary blower motor medium speed relay Auxiliary blower motor resistor (left rear of cabin, behind rear wheelwell) Bi-lev Blend Blower fuse 60a Blower motor Blower motor resistor/relay (right side of front blower motor) C2 c C202 Convenience center Def Diode Front auxiliary hvac control module G119 (right side of engine) G200 (left kick panel) G402 (left rear of vehicle) Heat Heater & a/c control logic module Heater & a/c controller Hot at all times Hot in run Hot in run or start Htr-a/c fuse 12 20a I/p fuse block Ign e fuse 10a Interior lights system Max Med Off Pnk Rear auxiliary hvac control module Rear auxiliary mode valve and seal assy (left rear interior) Rear auxiliary temperature Red Rr blower fuse 30a Rr ctrl Rr hvac fuse 24 10a S202 S307 S318 S319 S320 S321 S404 S405 (rear a/c harn, 37 cm from blower resistor breakout) S411 S412 S413 Tan Temp Under- hood fuse/ relay center Valve assy Vehicle control module (on left side of engine compartment) Vent Vent mode
5.7L 5.7L VIN R, Compressor Wiring Diagram for Chevrolet Chevy Express G2000 2500 List of elements for 5.7L VIN R, Compressor Wiring Diagram for Chevrolet Chevy Express G2000 2500: 26 (in eng harness) s101 (7.4l) (in eng harness) A/c A/c compress0r high pressure cutoff switch (rear of a/c compressor) A/c compress0r low pressure cutoff switch (in refrigerant line) A/c compressor clutch coil A/c compressor enable relay (in underhood fuse/relay center) A/c fuse 10a Bi-lev Blnd Def G119 (right side of engine) Heat Hot at all times Hot in run Hot in run or start Htr-a/c fuse 12 20a Hvac control module I/p fuse block Ign e fuse 10a Max Off Pnk S215 (i/p harn, 4 cm from radio breakout) Underhood fuse/relay center Vehicle control module (left side of engine compartment) Vent 5.7L VIN R, Heater Wiring Diagram for Chevrolet Chevy Express G2000 2500 List of elements for 5.7L VIN R, Heater Wiring Diagram for Chevrolet Chevy Express G2000 2500: 48 (i/p harness, 4 cm from radio breakout) (left rear of cabin, behind rear wheelwell) (rear a/c harness, 30 cm from blower motor resistor breakout) (rear a/c harness, 37 cm from blower motor resistor breakout) (rear a/c harness, 67 cm from blower motor resistor breakout) (school bus) Auxiliary blower motor (left rear of cabin, behind rear wheelwell) Auxiliary blower motor high speed relay Auxiliary blower motor low speed relay Auxiliary blower motor medium speed relay Auxiliary blower motor resistor (left rear of cabin, behind rear wheelwell) Auxiliary blower motor switch Blend Blower fuse 60a Blower motor Blower motor resistor/relay (right side of front blower motor) C1 f C2 c C202 Convenience center Def G119 (right side of engine) G200 (behind left kick panel) G416 (left rear frame rail) g402 (left rear of vehicle) Heat Heater controller Hot at all times Hot in run Hot in run or start Htr-a/c fuse 12 20a I/p fuse block Interior lights system Med Off Red Rr blower fuse 30a Rr hvac fuse 24 10a S202 (dash harn, 7 cm from vssb breakout) S215 S327 S400 (left body harness, near chmsl) S405 S412 S413 Tan Temperature valve actuator motor (on hvac plenum) Underhood fuse/relay center Vent 5.7L VIN R, Manual A/C Wiring Diagram, Cargo Van for Chevrolet Chevy Express G2000 2500 List of elements for 5.7L VIN R, Manual A/C Wiring Diagram, Cargo Van for Chevrolet Chevy Express G2000 2500: 75 (aux hvac harn, 14 cm from aux hvac module breakout) (below dash, right side of hvac plenum) temperature valve actuator motor (i/p harn, 4 cm from radio breakout) (i/p harn, 7 cm from vssb breakout) (in engine harness) (in underhood fuse/relay center) (left body harn, left side of cabin) (left rear interior) (left rear of cabin, behind rear wheelwell) (left rear of vehicle) (rear a/c harn, 67 cm from blower motor resistor breakout) (rear a/c harn, 7 cm from o/s air vlv actuator breakout) (rear a/c harness, 30 cm from blower motor resistor/relay breakout) (rear aux hvac harn, 29 cm from rear aux hvac module breakout) A/c A/c compressor clutch coil A/c compressor enable relay (in underhood fuse/relay center) A/c compressor high pressure cutoff switch (rear of a/c compressor) A/c compressor low pressure cutoff switch (in refrigerant line) A/c fuse 10a Auxiliary blower motor Auxiliary blower motor high speed relay Auxiliary blower motor low speed relay Auxiliary blower motor medium speed relay Auxiliary blower motor resistor (left rear of cabin, behind rear wheelwell) Bi-lev Blend Blower fuse 60a Blower motor Blower motor resistor/relay (right side of front blower motor) C2 c C202 C3 d3 Convenience center D3 c3 Def Diode Front auxiliary hvac control module G119 (right side of engine) G200 (left kick panel) G402 Heat Heater & a/c controller Hot at all times Hot in run Hot in run or start Htr-a/c fuse 12 20a I/p fuse block Ign e fuse 10a Interior lights system Max Med Off Pnk Rear auxiliary mode valve and seal assy (left rear interior) Rear auxiliary temperature Red Rr blower fuse 30a Rr hvac fuse 24 10a S202 S215 S307 S318 S404 S405 (rear a/c harn, 37 cm from blower resistor breakout) S411 S412 S413 Tan Temp Under- hood fuse/ relay center Valve assy Vehicle control module (left side of engine compartment) Vent Vent mode 5.7L VIN R, Manual A/C Wiring Diagram, Passenger Van for Chevrolet Chevy Express G2000 2500 List of elements for 5.7L VIN R, Manual A/C Wiring Diagram, Passenger Van for Chevrolet Chevy Express G2000 2500: 81 (aux hvac harn, 14 cm from aux hvac module breakout) (aux hvac harn, 26 cm from frt aux hvac mod breakout) (aux hvac harn, 57 cm from frt aux hvac module breakout) (below dash, right side of hvac plenum) temperature valve actuator motor (front interior roof panel) (i/p harn, 7 cm from vssb breakout) (i/p harn, 4 cm from radio breakout) s215 (in engine harness) (in underhood fuse/relay center) (left body harn, left side of cabin) (left rear interior) (left rear of cabin, behind rear wheelwell) (rear a/c harn, 67 cm from o/s air vlv actuator breakout) (rear a/c harn, 7 cm from blower motor resistor breakout) (rear a/c harness, 30 cm from blower motor resistor/relay breakout) (rear aux hvac harn, 29 cm from rear aux hvac module breakout) (rear hvac harn, 13 cm from frt aux hvac module breakout) A/c A/c compressor clutch coil A/c compressor enable relay (in underhood fuse/relay center) A/c compressor high pressure cutoff switch (rear of a/c compressor) A/c compressor low pressure cutoff switch (in refrigerant line) A/c fuse 10a Auxiliary blower motor Auxiliary blower motor high speed relay Auxiliary blower motor low speed relay Auxiliary blower motor medium speed relay Auxiliary blower motor resistor (left rear of cabin, behind rear wheelwell) Bi-lev Blend Blower fuse 60a Blower motor Blower motor resistor/relay (right side of front blower motor) C2 c C202 Convenience center Def Diode Front auxiliary hvac control module G119 (right side of engine) G200 (left kick panel) G402 (left rear of vehicle) Heat Heater & a/c control logic module Heater & a/c controller Hot at all times Hot in run Hot in run or start Htr-a/c fuse 12 20a I/p fuse block Ign e fuse 10a Interior lights system Max Med Off Pnk Rear auxiliary hvac control module Rear auxiliary mode valve and seal assy (left rear interior) Rear auxiliary temperature Red Rr blower fuse 30a Rr ctrl Rr hvac fuse 24 10a S202 S307 S318 S319 S320 S321 S404 S405 (rear a/c harn, 37 cm from blower resistor breakout) S411 S412 S413 Tan Temp Under- hood fuse/ relay center Valve assy Vehicle control module (on left side of engine compartment) Vent Vent mode
ANTI-LOCK BRAKES
4.3L 4.3L VIN W, Anti-lock Brake Wiring Diagrams for Chevrolet Chevy Express G2000 2500 List of elements for 4.3L VIN W, Anti-lock Brake Wiring Diagrams for Chevrolet Chevy Express G2000 2500: 54 (engine harness, 4.3l, 5.0l, 5.7l: near fuel injector harness breakout, 7.4l: near a/t input shaft speed sensor breakout) 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 Data link connector (under left side of dash) Daytime running lamp control module (under left side of dash) Diagnostic sig Ebcm ground Electronic brake control module (on left frame rail near center of vehicle) G125 (4.3l) g117 (5.0l, 5.7l, 7.4l) (4.3l: at generator bracket, 5.0l, 5.7l, 7.4l: rear of right cylinder head) G125 (at generator bracket) 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 Passlock module (below center of dash) Pnk Red Right front wheel speed sensor S101 S102 S122 S153 (engine harness, 4.3l; 8 cm from a/c compressor breakout, 5.0l, 5.7l, 7.4l; 8 cm from bulkhead connector at left rear of engine compartment) S154 (engine harness, 98 cm from underhood fuse/relay center, toward a/c compressor breakout) S156 S207 (i/p harn, 4 cm from park brake warning switch breakout) S210 S216 Sensor high Sensor low Serail data Serial data Signal ground Tan Tcc/ stoplamp switch (on brake pedal support) Underhood fuse/relay center Underhood fuse/relay center (left side of engine compt) Vehicle control module (left side of engine compt) Vehicle speed sensor (left side of transmission) Vss (+) Vss (-) Vss sig Warning systems
5.0L 5.0L VIN M, Anti-lock Brake Wiring Diagrams for Chevrolet Chevy Express G2000 2500 List of elements for 5.0L VIN M, Anti-lock Brake Wiring Diagrams for Chevrolet Chevy Express G2000 2500: 54 (engine harness, 4.3l, 5.0l, 5.7l: near fuel injector harness breakout, 7.4l: near a/t input shaft speed sensor breakout) 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 Data link connector (under left side of dash) Daytime running lamp control module (under left side of dash) Diagnostic sig Ebcm ground Electronic brake control module (on left frame rail near center of vehicle) G125 (4.3l) g117 (5.0l, 5.7l, 7.4l) (4.3l: at generator bracket, 5.0l, 5.7l, 7.4l: rear of right cylinder head) G125 (at generator bracket) 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 Passlock module (below center of dash) Pnk Red Right front wheel speed sensor S101 S102 S122 S153 (engine harness, 4.3l; 8 cm from a/c compressor breakout, 5.0l, 5.7l, 7.4l; 8 cm from bulkhead connector at left rear of engine compartment) S154 (engine harness, 98 cm from underhood fuse/relay center, toward a/c compressor breakout) S156 S207 (i/p harn, 4 cm from park brake warning switch breakout) S210 S216 Sensor high Sensor low Serail data Serial data Signal ground Tan Tcc/ stoplamp switch (on brake pedal support) Underhood fuse/relay center Underhood fuse/relay center (left side of engine compt) Vehicle control module (left side of engine compt) Vehicle speed sensor (left side of transmission) Vss (+) Vss (-) Vss sig Warning systems
5.7L 5.7L VIN R, Anti-lock Brake Wiring Diagrams for Chevrolet Chevy Express G2000 2500 List of elements for 5.7L VIN R, Anti-lock Brake Wiring Diagrams for Chevrolet Chevy Express G2000 2500: 54 (engine harness, 4.3l, 5.0l, 5.7l: near fuel injector harness breakout, 7.4l: near a/t input shaft speed sensor breakout) 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 Data link connector (under left side of dash) Daytime running lamp control module (under left side of dash) Diagnostic sig Ebcm ground Electronic brake control module (on left frame rail near center of vehicle) G125 (4.3l) g117 (5.0l, 5.7l, 7.4l) (4.3l: at generator bracket, 5.0l, 5.7l, 7.4l: rear of right cylinder head) G125 (at generator bracket) 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 Passlock module (below center of dash) Pnk Red Right front wheel speed sensor S101 S102 S122 S153 (engine harness, 4.3l; 8 cm from a/c compressor breakout, 5.0l, 5.7l, 7.4l; 8 cm from bulkhead connector at left rear of engine compartment) S154 (engine harness, 98 cm from underhood fuse/relay center, toward a/c compressor breakout) S156 S207 (i/p harn, 4 cm from park brake warning switch breakout) S210 S216 Sensor high Sensor low Serail data Serial data Signal ground Tan Tcc/ stoplamp switch (on brake pedal support) Underhood fuse/relay center Underhood fuse/relay center (left side of engine compt) Vehicle control module (left side of engine compt) Vehicle speed sensor (left side of transmission) Vss (+) Vss (-) Vss sig Warning systems
ANTI-THEFT Anti-theft Wiring Diagram for Chevrolet Chevy Express G2000 2500 List of elements for Anti-theft Wiring Diagram for Chevrolet Chevy Express G2000 2500: 42 (diesel only) s247 (i/p harn, 21 cm left of hvac switch breakout) (engine harn) s153 (i/p harn, 6 cm from park brake switch breakout) s207 (not used) 12v 5 volt ref B17 Capacitor 0.47 mf Data link connector (left side of dash) Diesel Diesel only Electronic brake control module (left center of vehicle) Filter (molded in steering column harness) Fuel sender buffer module (behind center of dash) G125 (front of engine, near thermostat housing) Gasoline Gauges fuse 4 10a Grd Hot at all times Hot in run or start I/p fuse block Ign Instrument cluster Nca Passlck sig Passlock module (below center of dash) Passlock sensor (internal to steering column) Passlock signal Pnk Powertrain control module (behind center of dash) Ref voltage Resistor 10 ohms S102 S216 S254 Sec ind out Security fuse 21 10a Security indicator Sens ret Sensor grd Serial data Vehicle control module (left side of engine compt)
COMPUTER DATA LINES Computer Data Lines for Chevrolet Chevy Express G2000 2500 List of elements for Computer Data Lines for Chevrolet Chevy Express G2000 2500: 27 (4.3l: engine harn, 5 cm from a/c compressor breakout, toward transmission) (5.0/5.7l: engine harn, 8 cm from ignition coil breakout toward transmission) (7.4l: engine harn, 5 cm from 36 pin in-line conn toward egr sensor breakout) (6.5l diesel: engine harn, 27 cm from breakout to underhood fuse relay center) C210 Convenience center (under left side of dash) Data clss Data link connector (dlc) (under left side of dash) Diag sig Diesel Electronic brake control module (ebcm) (on left frame rail near center of vehicle) G125 (at generator bracket) G200 (behind left kick panel) Gas 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 Remote control door lock receiver (behind center of dash) S153 S201 S207 (dash harness, approx 5 cm into vss buffer breakout) S218 S254 Serial data Tan Vehicle control module (vcm) (on left side of eng compt)
CRUISE CONTROL
4.3L 4.3L VIN W, Cruise Control Wiring Diagram for Chevrolet Chevy Express G2000 2500 List of elements for 4.3L VIN W, Cruise Control Wiring Diagram for Chevrolet Chevy Express G2000 2500: 44 (4.3l) (5.0l, 5.7l, 7.4l) A12 A13 A14 A15 Auto cruise Brake fuse 18 10a Cruise control module (front of engine compt, near left fender) Cruise control switch Cruise fuse 6 10a Cruise on input Cruise signal Electronic brake control module (on left frame rail near center of vehicle) Exterior light system G117 (rear of right cly head) g125 (at generator bracket) Ground Hot at all times Hot in run I/p fuse block (left lower kick panel) Ignition Off Pnk R/a Radio assembly Resume/accel sig S/c S122 S154 (engine harness, 4 cm from ignition coil breakout) S239 (i/p harn, 10 cm from radio breakout) S253 (i/p harness, near park brake breakout) S254 Set/coast sig Speed input Speed sensor input Speed signal Stop fuse 1 20a Stoplamp sw input Tcc/stoplamp switch (on brake pedal support) Vcm signal Vehicle control module (vcm) (left side of engine compt) Vehicle speed sensor (vss) (left side of transmission) Vss high Vss low
5.0L 5.0L VIN M, Cruise Control Wiring Diagram for Chevrolet Chevy Express G2000 2500 List of elements for 5.0L VIN M, Cruise Control Wiring Diagram for Chevrolet Chevy Express G2000 2500: 44 (4.3l) (5.0l, 5.7l, 7.4l) A12 A13 A14 A15 Auto cruise Brake fuse 18 10a Cruise control module (front of engine compt, near left fender) Cruise control switch Cruise fuse 6 10a Cruise on input Cruise signal Electronic brake control module (on left frame rail near center of vehicle) Exterior light system G117 (rear of right cly head) g125 (at generator bracket) Ground Hot at all times Hot in run I/p fuse block (left lower kick panel) Ignition Off Pnk R/a Radio assembly Resume/accel sig S/c S122 S154 (engine harness, 4 cm from ignition coil breakout) S239 (i/p harn, 10 cm from radio breakout) S253 (i/p harness, near park brake breakout) S254 Set/coast sig Speed input Speed sensor input Speed signal Stop fuse 1 20a Stoplamp sw input Tcc/stoplamp switch (on brake pedal support) Vcm signal Vehicle control module (vcm) (left side of engine compt) Vehicle speed sensor (vss) (left side of transmission) Vss high Vss low
5.7L 5.7L VIN R, Cruise Control Wiring Diagram for Chevrolet Chevy Express G2000 2500 List of elements for 5.7L VIN R, Cruise Control Wiring Diagram for Chevrolet Chevy Express G2000 2500: 44 (4.3l) (5.0l, 5.7l, 7.4l) A12 A13 A14 A15 Auto cruise Brake fuse 18 10a Cruise control module (front of engine compt, near left fender) Cruise control switch Cruise fuse 6 10a Cruise on input Cruise signal Electronic brake control module (on left frame rail near center of vehicle) Exterior light system G117 (rear of right cly head) g125 (at generator bracket) Ground Hot at all times Hot in run I/p fuse block (left lower kick panel) Ignition Off Pnk R/a Radio assembly Resume/accel sig S/c S122 S154 (engine harness, 4 cm from ignition coil breakout) S239 (i/p harn, 10 cm from radio breakout) S253 (i/p harness, near park brake breakout) S254 Set/coast sig Speed input Speed sensor input Speed signal Stop fuse 1 20a Stoplamp sw input Tcc/stoplamp switch (on brake pedal support) Vcm signal Vehicle control module (vcm) (left side of engine compt) Vehicle speed sensor (vss) (left side of transmission) Vss high Vss low
DEFOGGERS Defogger Wiring Diagram for Chevrolet Chevy Express G2000 2500 List of elements for Defogger Wiring Diagram for Chevrolet Chevy Express G2000 2500: 30 C210 Convenience center (under left side of dash) Fixed glass G200 (behind left kick panel) G998 (right interior "d" pillar) G999 (left interior "d" pillar) Heated mirror switch Heater & a/c controller Hot at all times Hot in run Htd mir fuse 2 20a Htr-a/c fuse 12 20a I/p fuse block (on left lower kick panel) Left power rear view mirror Left rear window defogger grid Moving glass Rear window defogger relay (bottom of left "b" pillar) Right power rear view mirror Right rear window defogger grid Rr defog fuse 22 25a S202 S206 S215 S245 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 G2000 2500 List of elements for 4.3L VIN W, Engine Performance Wiring Diagrams (1 of 4) for Chevrolet Chevy Express G2000 2500: 56 (on lower front of engine, near crankshaft) crankshaft position sensor (on right side of engine) evaporative emissions canister purge solenoid valve (on top left side of engine) Air pump rel cntrl Cam signal Camshaft position sensor (part of distributor, rear top of engine) Ckp sensor ground Ckp sensor signal Cmp sensor ground Coil a high Coil a low Coil b high Coil b low Egr sol posit signal Evap vent vlv sig Evaporative emission canister vent valve (on left frame rail, near fuel tank) Fuel lvl sig out Fuel tank press sens in G119 (engine harness at generator bracket) Heated oxygen sensor bank 1 sensor 1 (in exhaust pipe, in front of catalytic converter) Heated oxygen sensor bank 1 sensor 3 (in exhaust pipe, in front of catalytic converter) Heated oxygen sensor bank 2 sensor 1 (in exhaust pipe, in front of catalytic converter) Ho2s low Ho2s signal Idle air control valve Inj 1 ctrl Inj 2 ctrl Inj 3 ctrl Inj 4 ctrl Inj 5 ctrl Inj 6 ctrl Knock sens signal Knock sensor (on top rear of engine) Maf signal Map sens signal Nca Pnk Pnk a Pnk c S101 S103 S152 Sensor signal Shift sol output (1/2) Shift sol output (2/3) Shift sol output (3/2) Signal Solid state Tan Tcc pwm sol ctrl Tcc solenoid output Trans temp sens signal Vehicle control module (vcm) (on left side of engine compartment) Vss signal high Vss signal low Vss signal output 4.3L VIN W, Engine Performance Wiring Diagrams (2 of 4) for Chevrolet Chevy Express G2000 2500 List of elements for 4.3L VIN W, Engine Performance Wiring Diagrams (2 of 4) for Chevrolet Chevy Express G2000 2500: 41 (4l60-e) (4l60-e) a b (4l80-e) (4l80-e) 1-2 shift sol valve 2-3 shift sol valve 3-2 shift sol valve 4l60-e Automatic transmission Automatic transmission fluid pressure (tfp) manual position switch B (4l60-e) D2 sw D3 sw D4 sw Eng1 fuse 20a Exhaust gas recirculation valve (on top front of engine) Fuel inj 1 Fuel inj 2 Fuel inj 3 Fuel inj 4 Fuel inj 5 Fuel inj 6 H7 ecm1 fuse 20a Heated oxygen sensor bank 2 sensor 2 (in exhaust pipe, in back of catalytic converter) Hot in run or start Lo sw Nca Pnk Pnk a c Pressure cntrl solenoid valve Red Rev sw S130 S132 S133 Tan Tcc pwm sol valve Tcc sol valve Trans fluid temp sensor is not part of automatic trans fluid pressure (tfp) manual position switch with the 4l80-e transmission Trans fluid temp sensor Under hood fuse/relay center W/ air injection reaction system 4.3L VIN W, Engine Performance Wiring Diagrams (3 of 4) for Chevrolet Chevy Express G2000 2500 List of elements for 4.3L VIN W, Engine Performance Wiring Diagrams (3 of 4) for Chevrolet Chevy Express G2000 2500: 50 (engine harness at generator bracket) g119 (engine harness, approx 111 cm from underhood fuse- relay center) (engine harness, approx 85 cm from underhood fuse- relay center) (engine harness, approx 91 cm from underhood fuse/ relay center) 87a Air fuse 30a B14 B17 Ecm-b fuse 20a Engine coolant temperature sensor (on top front of engine) F11 Fuel lvl input Fuel pump & sender (in fuel tank under rear of vehicle) Fuel pump relay Fuel tank pressure sensor (in fuel tank) G102 (left side of engine compt, near fender well) G119 (engine harness, at generator bracket) G12 Gauges fuse 4 10a Hot at all times Hot in off, run or start Hot in run or start I/p fuse block Instrument cluster Intake air temperature sensor (on front of engine compartment, part of air intake duct) Malfunction indicator lamp (mil) "service engine soon" Manifold absolute pressure sensor (on top right side of engine) Mass airflow sensor (part of air intake duct, top front of engine) Pnk Red S101 S102 S103 S119 S120 S136 S137 S139 S152 S216 Secondary air injection reaction pump clutch Secondary air injection reaction pump relay Secondary air injection solenoid Speedometer/ odometer input Tan Tan a Throttle position sensor (on side of throttle body) Trans fuse 20 10a Underhood fuse/relay center Vehicle speed sensor (on left side of transmission) 4.3L VIN W, Engine Performance Wiring Diagrams (4 of 4) for Chevrolet Chevy Express G2000 2500 List of elements for 4.3L VIN W, Engine Performance Wiring Diagrams (4 of 4) for Chevrolet Chevy Express G2000 2500: 64 (engine harn, 98 cm from underhood (engine harness at generator bracket) g119 (engine harness, 4 cm from engine harn inline conn, left rear of engine compt) s153 (engine harness, 7 cm from breakout to ground at generator bracket towards transmission) (i/p harness, approx 10 cm into radio breakout) s239 (i/p harness, approx 18 cm from engine harn inline conn, left rear of eng compt) 5 volt reference 5 volts reference A pnk A/c com rel coil A/c compressor enable relay A/c request sig A/c signal Air conditioning system Automatic transmission input shaft speed sensor (left side of transmission) Battery Brake switch input Coil Cruise control module (on front of engine compartment, near left fender) Cruise ctrl sig-eng Data link connector (under left side of dash) Distributor Egr vlv ctrl Electronic brake control module (ebcm) (on left frame rail, near center of vehicle) Est control signal Evap driver Fuel pump rly ctrl Fuse/relay center) s154 Ground High voltage coil wire Hot in run I/p fuse block Ignition Ignition coil (on top right side of engine) Ignition control module (on top right side of engine, at ignition coil) M4 brake fuse 18 10a n3 Mal func ind out Passlock module (center of dash) Pnk Radio Red S101 S122 S207 (i/p harn, 6 cm from park brake warning switch breakout) S210 S231 Sensor ground Serial data Signal input Solid state Speed sensor input Stoplamp switch input Tcc signal Tcc/stoplamp switch (behind dash, on brake pedal support) Trans force mtr feed Trans force mtr rtn Trans range a input Trans range b input Trans range c input Underhood fuse/relay center Vcm signal Vehicle control module (on left side of engine compartment) Vss signal Vss signal output
5.0L 5.0L VIN M, Engine Performance Wiring Diagrams (1 of 4) for Chevrolet Chevy Express G2000 2500 List of elements for 5.0L VIN M, Engine Performance Wiring Diagrams (1 of 4) for Chevrolet Chevy Express G2000 2500: 59 (lower front of engine, near crankshaft) crankshaft position sensor (right side of engine) evaporative emissions canister purge solenoid valve (top left side of engine) idle air control valve 1-2 shift sol 2-3 shift sol 4l60-e 4l80-e trans Air pump relay cntrl Camshaft position sensor (part of distributor, rear top of engine) Canister vet sig Ckp low Ckp sig Cmp return Cmp signal Coil a hi Coil b hi Css sig Ect sig Egr position signal Evaporative emission canister vent valve (on left frame rail, near fuel tank) Fuel inj 1 Fuel inj 2 Fuel inj 3 Fuel inj 4 Fuel inj 5 Fuel inj 6 Fuel inj 7 Fuel inj 8 Fuel lvl sig out Fuel tank press sig G110 (left front of engine) Heated oxygen sensor bank 1 sensor 1 (in exhaust pipe in front of catalytic converter) Heated oxygen sensor bank 1 sensor 3 (in exhaust pipe in front of catalytic converter) Heated oxygen sensor bank 2 sensor 2 (5.7l 0nly) (in exhaust pipe in back of catalytic converter) Ho2s low Ho2s signal Iac high Iac low Iat sig Knock sens signal Knock sensor (top rear of engine) Maf signal Map sens signal Nca Pnk Pnk c Pwm tcc sol output S101 S152 Shift solenoid output Solid state Tan Tcc sol output Temp sens signal Tp sig Trans Vehicle control module (vcm) (left side of engine compartment) Vehicle speed sensor (left side of transmission) Vss low Vss signal 5.0L VIN M, Engine Performance Wiring Diagrams (2 of 4) for Chevrolet Chevy Express G2000 2500 List of elements for 5.0L VIN M, Engine Performance Wiring Diagrams (2 of 4) for Chevrolet Chevy Express G2000 2500: 36 (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 Eng-1 k7 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 Fuse 20a l8 Heated oxygen sensor bank 2 sensor 1 (in exhaust pipe in front of catalytic converter) Hot in run or start Ignition Nca Pnk Pnk s130 Pressure control solenoid valve Red S132 S133 Tan Tcc pcm solenoid valve Tcc solenoid vlave Underhood fuse/relay center W/4l60-e 4-speed trans only 5.0L VIN M, Engine Performance Wiring Diagrams (3 of 4) for Chevrolet Chevy Express G2000 2500 List of elements for 5.0L VIN M, Engine Performance Wiring Diagrams (3 of 4) for Chevrolet Chevy Express G2000 2500: 49 (engine harn, approx 8 cm from ho2s sensor, bank 2 sensor 1) s136 (engine harness, approx 85 cm from underhood fuse/relay center toward a/c compressor clutch breakout) (engine harness, approx 91 cm from underhood fuse/relay center toward a/c comp clutch breakout) (left front of engine) g110 87a Air fuse 30a B14 B17 Ecm-b fuse 20a Engine coolant temperature gauge sensor (on left cylinder head, between two front spark plugs) F11 Fuel lvl input Fuel pump & sender (in fuel tank under rear of vehicle) Fuel pump relay Fuel tank pressure sensor (in fuel tank) G110 (left front of engine) G12 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 Intake air temperature sensor (front of engine compartment, part of air intake duct) 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/ Pnk Red S101 S102 S103 S119 S137 S139 S152 S216 Secondary air injection reaction pump clutch Secondary air injection reaction pump relay Secondary air injection reaction solenoid Sig in Sig out Tan Tan a Throttle position sensor (on side of throttle body) Trans fuse 20 10a Underhood fuse/relay center 5.0L VIN M, Engine Performance Wiring Diagrams (4 of 4) for Chevrolet Chevy Express G2000 2500 List of elements for 5.0L VIN M, Engine Performance Wiring Diagrams (4 of 4) for Chevrolet Chevy Express G2000 2500: 65 (engine harness, 111 cm from underhood fuse/ relay center toward a/c comp clutch breakout) (engine harness, 98 cm from underhood fuse/ relay center toward a/c comp clutch breakout) (i/p harness, approx 10 cm into radio breakout) (i/p harness, approx 18 cm from engine sensors inline conn toward bulkhead) (left front of engine) g110 5 volt reference 5 volts reference A/c com rel ctrl A/c comp cycling sw A/c compressor enable relay A/c request sig Air conditioning system Automatic transmission input shaft speed sensor (w/4l80-e) (left side of transmission) Battery Brake switch input Coil Cruise control module (front of engine compartment near left fender) Cruise ctrl sig eng Cruise engaged output Data link connector (under left side of dash) Distributor Egr valve ctrl Electronic brake control module (ebcm) (left frame rail near center of vehicle) Evap driver Fuel lvl module Fuel pump rly feed Ground High voltage coil wire Hot in run I/p fuse block Ic cntrl Ignition Ignition coil (top rear of engine) Ignition control module (top right side of engine, at ignition coil) Inline conn toward breakout) s153 Inpuit speed sens low Input speed sens high M4 brake fuse 18 10a n3 Mal func lp output Pcs high Pcs low Pnk Pnk a Radio Range sig a Range sig b Range sig c Red S101 S122 S154 S210 S231 S239 Sensor ground Serial data Solid state Speed sensor input Stoplamp switch input Tcc signal Tcc/stoplamp switch (behind dash, on brake pedal support) Underhood fuse/relay center Vehicle control module (vcm) (left side of engine compartment) Vss signal Vss signal output
5.7L 5.7L VIN R, Engine Performance Wiring Diagrams (1 of 4) for Chevrolet Chevy Express G2000 2500 List of elements for 5.7L VIN R, Engine Performance Wiring Diagrams (1 of 4) for Chevrolet Chevy Express G2000 2500: 59 (lower front of engine, near crankshaft) crankshaft position sensor (right side of engine) evaporative emissions canister purge solenoid valve (top left side of engine) idle air control valve 1-2 shift sol 2-3 shift sol 4l60-e 4l80-e trans Air pump relay cntrl Camshaft position sensor (part of distributor, rear top of engine) Canister vet sig Ckp low Ckp sig Cmp return Cmp signal Coil a hi Coil b hi Css sig Ect sig Egr position signal Evaporative emission canister vent valve (on left frame rail, near fuel tank) Fuel inj 1 Fuel inj 2 Fuel inj 3 Fuel inj 4 Fuel inj 5 Fuel inj 6 Fuel inj 7 Fuel inj 8 Fuel lvl sig out Fuel tank press sig G110 (left front of engine) Heated oxygen sensor bank 1 sensor 1 (in exhaust pipe in front of catalytic converter) Heated oxygen sensor bank 1 sensor 3 (in exhaust pipe in front of catalytic converter) Heated oxygen sensor bank 2 sensor 2 (5.7l 0nly) (in exhaust pipe in back of catalytic converter) Ho2s low Ho2s signal Iac high Iac low Iat sig Knock sens signal Knock sensor (top rear of engine) Maf signal Map sens signal Nca Pnk Pnk c Pwm tcc sol output S101 S152 Shift solenoid output Solid state Tan Tcc sol output Temp sens signal Tp sig Trans Vehicle control module (vcm) (left side of engine compartment) Vehicle speed sensor (left side of transmission) Vss low Vss signal 5.7L VIN R, Engine Performance Wiring Diagrams (2 of 4) for Chevrolet Chevy Express G2000 2500 List of elements for 5.7L VIN R, Engine Performance Wiring Diagrams (2 of 4) for Chevrolet Chevy Express G2000 2500: 36 (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 Eng-1 k7 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 Fuse 20a l8 Heated oxygen sensor bank 2 sensor 1 (in exhaust pipe in front of catalytic converter) Hot in run or start Ignition Nca Pnk Pnk s130 Pressure control solenoid valve Red S132 S133 Tan Tcc pcm solenoid valve Tcc solenoid vlave Underhood fuse/relay center W/4l60-e 4-speed trans only 5.7L VIN R, Engine Performance Wiring Diagrams (3 of 4) for Chevrolet Chevy Express G2000 2500 List of elements for 5.7L VIN R, Engine Performance Wiring Diagrams (3 of 4) for Chevrolet Chevy Express G2000 2500: 49 (engine harn, approx 8 cm from ho2s sensor, bank 2 sensor 1) s136 (engine harness, approx 85 cm from underhood fuse/relay center toward a/c compressor clutch breakout) (engine harness, approx 91 cm from underhood fuse/relay center toward a/c comp clutch breakout) (left front of engine) g110 87a Air fuse 30a B14 B17 Ecm-b fuse 20a Engine coolant temperature gauge sensor (on left cylinder head, between two front spark plugs) F11 Fuel lvl input Fuel pump & sender (in fuel tank under rear of vehicle) Fuel pump relay Fuel tank pressure sensor (in fuel tank) G110 (left front of engine) G12 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 Intake air temperature sensor (front of engine compartment, part of air intake duct) 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/ Pnk Red S101 S102 S103 S119 S137 S139 S152 S216 Secondary air injection reaction pump clutch Secondary air injection reaction pump relay Secondary air injection reaction solenoid Sig in Sig out Tan Tan a Throttle position sensor (on side of throttle body) Trans fuse 20 10a Underhood fuse/relay center 5.7L VIN R, Engine Performance Wiring Diagrams (4 of 4) for Chevrolet Chevy Express G2000 2500 List of elements for 5.7L VIN R, Engine Performance Wiring Diagrams (4 of 4) for Chevrolet Chevy Express G2000 2500: 65 (engine harness, 111 cm from underhood fuse/ relay center toward a/c comp clutch breakout) (engine harness, 98 cm from underhood fuse/ relay center toward a/c comp clutch breakout) (i/p harness, approx 10 cm into radio breakout) (i/p harness, approx 18 cm from engine sensors inline conn toward bulkhead) (left front of engine) g110 5 volt reference 5 volts reference A/c com rel ctrl A/c comp cycling sw A/c compressor enable relay A/c request sig Air conditioning system Automatic transmission input shaft speed sensor (w/4l80-e) (left side of transmission) Battery Brake switch input Coil Cruise control module (front of engine compartment near left fender) Cruise ctrl sig eng Cruise engaged output Data link connector (under left side of dash) Distributor Egr valve ctrl Electronic brake control module (ebcm) (left frame rail near center of vehicle) Evap driver Fuel lvl module Fuel pump rly feed Ground High voltage coil wire Hot in run I/p fuse block Ic cntrl Ignition Ignition coil (top rear of engine) Ignition control module (top right side of engine, at ignition coil) Inline conn toward breakout) s153 Inpuit speed sens low Input speed sens high M4 brake fuse 18 10a n3 Mal func lp output Pcs high Pcs low Pnk Pnk a Radio Range sig a Range sig b Range sig c Red S101 S122 S154 S210 S231 S239 Sensor ground Serial data Solid state Speed sensor input Stoplamp switch input Tcc signal Tcc/stoplamp switch (behind dash, on brake pedal support) Underhood fuse/relay center Vehicle control module (vcm) (left side of engine compartment) Vss signal Vss signal output
EXTERIOR LIGHTS Back-up Lamps Wiring Diagram for Chevrolet Chevy Express G2000 2500 List of elements for Back-up Lamps Wiring Diagram for Chevrolet Chevy Express G2000 2500: 17 (dash harness, near breakout to convenience center) s260 Back-up lamp switch (park/neutral position switch) (left side of transmission) D c406 G402 (left rear of interior, behind rear wheelhouse) G403 (right rear of interior, behind rear wheelhouse) Hot in run or start I/p fuse block Left back-up lamp Pnk Power mirror system Right back-up lamp S217 S409 S909 S910 Turn b/u fuse 16 20a W/ optional trailer wiring package (right rear of interior) Exterior Lamps Wiring Diagram, with Composite Headlamps for Chevrolet Chevy Express G2000 2500 List of elements for Exterior Lamps Wiring Diagram, with Composite Headlamps for Chevrolet Chevy Express G2000 2500: 74 (2000) (2001) (dash harness, 4 cm from head- lamp switch breakout) s225 (forward lamp harn, 26 cm into left forward lamp harness) s142 (forward lamp harness, 26 cm from left forward lamp breakout) s135 (left tail- lamp harn, behind left taillamp assembly) s901 (not used) (right rear of interior) w/ optional trailer wiring package) 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 G100 (left front of engine compartment) G101 (right front of engine compartment) G200 (behind left kick panel) G402 (left rear interior, behind rear wheelhouse) G403 (right rear interior, behind rear wheelhouse) 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 cluster Interior lights system Left Left front inner park/ turn signal lamp Left front outer park/ turn signal lamp Left front side marker lamp Left rear park/ stop lamp Left rear park/ turn lamp Left turn ind License lamp Normal Off Park Park lps fuse 9 20a Pnk Right Right front inner park/ turn signal lamp Right front outer park/ turn signal lamp Right front side marker lamp Right rear park/ stop lamp Right rear park/ turn lamp Right turn ind S110 S118 S119 (engine harness, 117 cm from underhood f/r center, towards a/c compressor breakout) S125 (dash harness, near windshield washer pump breakout) S145 (forward lamp harness, 15 cm into right forward lamps breakout) S202 S217 S222 S236 (dash harness, 4 cm from dlc breakout) S237 (dash harness, near base of steering column, near cluster breakout) S253 S400 S402 (left body harn, behind left taillamp assembly) S903 S909 S910 Stop fuse 20a Taillamp assembly) Tcc/ stop lamp switch (behind dash, on brake pedal support) Tn sw Turn- b/u fuse 16 20a Turn/ hazard switch Turn/hazard lamp flasher W/ optional trailer wiring package (right rear of interior) Exterior Lamps Wiring Diagram, with Sealed Beam Headlamps for Chevrolet Chevy Express G2000 2500 List of elements for Exterior Lamps Wiring Diagram, with Sealed Beam Headlamps for Chevrolet Chevy Express G2000 2500: 73 (2000) (2001) (dash harness, 4 cm from head- lamp switch breakout) s225 (forward lamp harness, 26 cm from left forward lamp breakout) s135 (left tail- lamp harn, behind left taillamp assembly) s901 (not used) (right rear of interior) w/ optional trailer wiring package) 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 G100 (left front of engine compartment) G101 (right front of engine compartment) G200 (behind left kick panel) G402 (left rear interior, behind rear wheelhouse) G403 (right rear interior, behind rear wheelhouse) 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 cluster Interior lights system Left Left front park/turn signal lamp Left front side marker lamp Left rear park/ stop lamp Left rear park/ turn lamp Left turn ind License lamp Normal Off Park Park lps fuse 9 20a Pnk R100 (resistor) (6 ohms, 30 watts) (forward lamp harness, left front of vehicle near headlamp) Right Right front park/turn signal lamp Right front side marker lamp Right rear park/ stop lamp Right rear park/ turn lamp Right turn ind S110 S118 S119 (engine harness, 117 cm from underhood f/r center, towards a/c compressor breakout) S125 (dash harness, near windshield washer pump breakout) S142 (forward lamp harn, 26 cm into left forward lamp harness) S202 S217 S222 S236 (dash harness, 4 cm from dlc breakout) S237 (dash harness, near base of steering column, near cluster breakout) S253 S400 S402 (left body harn, behind left taillamp assembly) S410 (left body harn, near chmsl connector breakout) S903 S909 S910 Stop fuse 20a Taillamp assembly) Tcc/ stop lamp switch (behind dash, on brake pedal support) Tn sw Turn- b/u fuse 16 20a Turn/ hazard switch Turn/hazard lamp flasher W/ optional trailer wiring package (right rear of interior)
GROUND DISTRIBUTION Ground Distribution Wiring Diagram (1 of 4) for Chevrolet Chevy Express G2000 2500 List of elements for Ground Distribution Wiring Diagram (1 of 4) for Chevrolet Chevy Express G2000 2500: 81 (forward lamp harness, approx 19 cm into left forward lamp breakout) (forward lamp harness, approx 22 cm into right forward lamp breakout) (i/p harness, approx 7 cm into vss buffer 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) (upfitter provision) c206 (w/ upfitter provisions) A/t shift lock solenoid Ashtray lamp Auxiliary battery (diesel) Auxiliary blower motor Auxiliary heater switch Auxiliary power outlet Battery C210 C302 Cigarette lighter Convenience center Convenience center (left side of dash) Cruise test resistor connector Data link connector Daytime running lamp (drl) control module E13 G100 (left side of engine compt, near fender well) G101 (right side of engine compt, near fender well) G113 (left frame rail, near auxiliary battery) G116 (left side of engine compt, under brake master cylinder) G118 (right lower front of engine) G119 (right frame rail, near front of engine) G200 (behind left kick panel) Headlamp switch Heater & a/c controller I/p compartment lamp I/p relay center Ignition switch Illuminated entry module Instrument cluster Left front park & turn signal lamp Left front side marker lamp Left headlamp (w/ sealed beam headlamps) Left high beam headlamp (w/ composite headlamps) Left low beam headlamp (w/ composite headlamps) Left power seat switch Left sun shade mirror lamp Low engine coolant level indicator module (diesel) Low engine coolant level indicator sensor (diesel) Multi- function alarm module Nca P/b booster fluid flow switch Power antenna assembly Power door lock control module Power door lock relay Radio Rear fog lamp Remote control door lock receiver Right front park & turn signal lamp Right front side marker lamp Right headlamp (w/ sealed beam headlamps) Right high beam headlamp (w/ composite headlamps) Right low beam headlamp (w/ composite headlamps) Right sun shade mirror lamp S201 (i/p harness, approx 4 cm from park brake warning switch breakout) S202 S204 S205 S206 (crossbody harness, approx 4 cm from power door lock relay breakout) S257 (power seat harn, under left side of dash) S328 School bus equipment Seat belt switch Side door jamb switch (w/ upfitter provisions) Steering column ground Temperature valve actuator motor 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/ hazard lamp flasher 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 G2000 2500 List of elements for Ground Distribution Wiring Diagram (2 of 4) for Chevrolet Chevy Express G2000 2500: 56 (at generator bracket) g125 (engine harness, approx 4 cm from a/c compressor breakout) (i/p harness, approx 10 cm from park brake warning switch 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) (underhood lamp harness, approx 4 cm from breakout to connector near blower motor) A/c compressor clutch Ambulance package B13 Base Blower motor resistor/ relay Brake pressure differential switch Data link connector (dlc) Diesel engines Diode Electronic brake control module (ebcm) From s206 (diagram 1 of 4) Fuel heater Fuel lift pump Fuel pump relay Fuel sender buffer module G110 (left front of engine at a/c compressor) G125 (front of engine, near thermostat housing) G200 (behind left kick panel) Glow plug relay Horns Inflatable restraint front end discriminating sensor Inflatable restraint sensing & diagnostic module Instrument cluster Left front door jamb switch Left front power door lock switch Left front power side window switch Left power outside rear view mirror Non base Park/ neutral position switch Passlock module Power outside rear view mirror remote control switch Powertrain control module (pcm) Right front door jamb switch Right front power door lock switch Right front power side window switch Right power outside rear view mirror S101 (engine harness, approx 22 cm from optical fuel breakout) S102 S104 S208 (i/p harness, approx 7 cm into inflatable restraint sensing & diagnostic module breakout) S254 Starter relay Underhood fuse/relay center Underhood lamp Underhood reel lamp Vehicle speed sensor buffer W/ nb6 W/ tr9 lamp group W/o nb6 Water-in- fuel indicator Ground Distribution Wiring Diagram (3 of 4) for Chevrolet Chevy Express G2000 2500 List of elements for Ground Distribution Wiring Diagram (3 of 4) for Chevrolet Chevy Express G2000 2500: 50 (4.3l) (5.0l, 5.7l, 7.4l) 4.3l 5.0l 5.7l 4.3l 5.7l 4.3l, 5.0l, 5.7l a 7.4l A/c compressor clutch A/c low pressure cutout switch Air injection reaction solenoid B13 Blower motor resistor/ relay Brake pressure differential switch Cruise control module Data link connector (dlc) Diode Electronic brake control module (ebcm) Except 7.4l Fuel pump & sender Fuel pump relay G117 (rear of right cylinder head) G125 (at generator bracket) G125 (front of engine, near thermostat housing) Gasoline engines Heated oxygen sensor (ho2s) bank 1 sensor 1 Heated oxygen sensor (ho2s) bank 1 sensor 3 Heated oxygen sensor (ho2s) bank 2 sensor 1 Heated oxygen sensor (ho2s) bank 2 sensor 2 Horns Ignition control module (icm) Instrument cluster Mass airflow (maf) sensor Nca Park/ neutral position switch Passlock module S101 (4.3l: engine harn, approx 20 cm from knock sensor breakout, 5.0l, 5.7l: engine harn, approx 10 cm from ignition coil breakout, 7.4l: engine harn, approx 5 cm from generator breakout) S102 (4.3l-engine harness, approx 104 cm from underhood fuse/relay panel breakout, ex 4.3l-engine harness, approx 4 cm from a/c compressor breakout) S103 (4.3l: engine harn, approx 4 cm from fuel injector breakout, 5.0l, 5.7l: engine harn, approx 4 cm from oxygen sensor breakout, 7.4l: engine harn approx 4 cm from ect sensor breakout) S104 (underhood lamp harness, approx 4 cm from breakout to connector near blower motor) S152 (4.3l: engine harn, approx 16 cm from fuel injector breakout, 5.0l, 5.7l: engine harn, approx 4 cm from fuel injector breakout, 7.4l: engine harn approx 15 cm from oxygen sensor breakout) S254 (i/p harn, approx 10 cm from park brake warning switch breakout) Secondary air injection reaction pump Secondary air injection reaction pump clutch Starter relay Underhood fuse/relay center Underhood lamp Underhood reel lamp Vehicle control module (vcm) W/ hydra-matic 4l60-e or 4.3l w/ hydra-matic 4l80-e c W/ hydra-matic 4l80-e b W/ tr9 lamp group Ground Distribution Wiring Diagram (4 of 4) for Chevrolet Chevy Express G2000 2500 List of elements for Ground Distribution Wiring Diagram (4 of 4) for Chevrolet Chevy Express G2000 2500: 38 (auxiliary heater & a/c harn, approx 14 cm from the front auxiliary hvac module breakout) s318 (rear a/c harn, approx 7 cm from the o/s air valve actuator breakout) s411 Auxiliary blower motor Auxiliary blower motor switch Back-up lamp Cargo Center high mounted stoplamp Front auxiliary hvac control module Front auxiliary hvac controller G998 (right rear corner of the interior of the cabin, "d" pillar) G999 (left rear corner of interior of cabin, "d" pillar) Heater & a/c control logic module Left back-up lamp Left rear park & turn signal lamp Left rear taillamp (park/stop) Left rear window defogger grid License lamp Passenger Rear auxiliary hvac controller Rear auxiliary mode vavle & seal assembly Rear auxiliary temperature valve assembly Rear fog lamp Rear window defogger relay Right back-up lamp Right rear door jamb switch Right rear park & turn signal lamp Right rear tail lamp (park & stop) Right rear window defogger grid S318 S400 (left body harn, left rear of vechicle) S401 (left body harn, left rear of vehicle) 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) W/ auxiliary heater W/ auxiliary heater or wiring provisions W/ rear a/c Wiring provisions
HEADLIGHTS Headlight Wiring Diagram for Chevrolet Chevy Express G2000 2500 List of elements for Headlight Wiring Diagram for Chevrolet Chevy Express G2000 2500: 86 (4.3l, 6.5l) (5.0l, 5.7l, 7.4l) (at generator bracket) (engine harn, in eng compt) s156 (forward lamp harn, approx 13 cm from left forward lamp breakout toward right forward lamp breakout) s143 (rear of right cylinder head) 17a 31a 56b A17 Acc B17 Brake ind ctrl Brake pressure differential switch (on left frame rail near center of vehicle, part of electronic brake module) Brake psi in C200 Composite headlamps Daytime running lamp diode module (under left side of dash) Daytime running lamp relay (under left side of dash, on lower center portion of convenience center) 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 Electronic brake control module F f G100 (left side of engine compt) G101 (right side of engine compt) G117 G125 G200 (behind left kick panel) Gauges fuse 4 10a Ground Head Headlamp dimmer switch Headlamp leveling switch Headlamp switch High beam indicator Hot at all times Hot in run or start I/p fuse block (on left lower kick panel) Ign (run/st) Ign key status Ignition switch Instrument cluster Instrument cluster system Interior lights system Lamp feed Left headlamp Left headlamp leveling actuator Left high beam headlamp lamp Left low beam headlamp lamp Lighting fuse 40a Lock Logic Nca Off Park Park brake in Park brake warning switch (near left kick panel, on park brake lever) Pnk Red Right headlamp Right headlamp leveling actuator Right high beam headlamp lamp Right low beam headlamp lamp Run S101 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) S149 S150 S151 S201 S202 S205 S211 S216 Sealed beam headlamps Start Tan Underhood fuse/relay center (on left side of engine compt)
HORN Horn Wiring Diagram for Chevrolet Chevy Express G2000 2500 List of elements for Horn Wiring Diagram for Chevrolet Chevy Express G2000 2500: 18 (4.3l,5.0l,5.7l,7.4l) (6.5l) (not used) A11 C100 C200 G117 (5.0l, 5.7l, 7.4l) (rear of right cylinder head) g125 (4.3l, 6.5l) (at generator bracket) 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 G2000 2500 List of elements for Instrument Cluster Wiring Diagram (1 of 2) for Chevrolet Chevy Express G2000 2500: 100 (4.3l/6.5l/7.4l: left side of eng, on cylinder head, 5.0l/5.7l: left cylinder head, between two front spark plugs) (7 bulbs) (diesel only) (engine harn, 14 cm from knock sensor) (4.3l) (engine harn, 8 cm from injector harn breakout) (5.0/5.7l) (engine harn, 10 cm from input shaft sensor) (7.4l) (engine harn, 4 cm from brake pressure differential switch) (6.5l diesel) (not used) 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 (part of electronic brake control module, left frame rail) Brake psi in Brake warning ind Check gauges ind Check gauges lamp driver Daytime running lamps control module (under left side of dash, taped to harness) Diesel only Diode-i 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 gauge sensor Exterior lights system Fuel gauge G101 (right side of engine compt, near fender well) G117 (5.0, 5.7, 7.4l) (rear of right cylinder head) G125 (4.3, 6.5l) (at generator bracket) G125 (front of engine, near thermostat housing) G200 (behind left kick panel) Gauges fuse 4 10a Gnd Headlights system High beam ind Hot in run or start I/p fuse block (lower left kick panel) Ign Ign feed Ignition switch Illumin- ation lamps Ind ctrl Instrument cluster Interior lights system Left turn ind Lock Low coolant ind (diesel) Low engine coolant level indicator module (diesel only) (under left side of dash) Low engine coolant level indicator sensor (diesel only) (under coolant recovery/surge tank) Off Oil pressure gauge Park/neutral position switch (left side of transmission) Pk brake Pnk Prndl circuit board 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) Solid state Speedometer/ odometer Start Starting/charging system Tan Temp gauge Underhood fuse/relay center (left side of eng compt) Underhood fuse/relay center (on left side of eng 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 G2000 2500 List of elements for Instrument Cluster Wiring Diagram (2 of 2) for Chevrolet Chevy Express G2000 2500: 57 (behind center of dash) (diesel only) (i/p harn, approx 21 cm from hvac switch breakout) s247 +5v ref 1.5k Anti-lock brakes system Batt Brake fuse 18 10a Diesel Engine oil pressure gauge sender (top rear of engine) Engine oil pressure gauge sensor (top rear of engine) Fuel level Fuel pump & sender (in fuel tank) Fuel sender buffer module Fuel sig Fuel tank level sender (in fuel tank) G116 (left side of engine compt, under brake master cylinder) G125 (front of engine, near thermostat housing) Gasoline Gnd Hot in acc or run Hot in run I/p fuse block (lower left kick panel) Ign Ignition Inline diode d202 (near park brake switch) Low flow Low pres. P/b booster fluid flow & pressure alarm delay module P/b booster fluid flow alarm P/b booster fluid flow alarm switch P/b booster fluid pressure alarm switch Park brake warning switch Passlock module (behind center of dash) Pnk Powertrain control module (behind center of dash) Radio Resistor r208 (w/ uj1) (near i/p fuse block) S210 S238 (i/p harn, 4 cm from cluster breakout) S246 (i/p harn, approx 25 cm from hvac switch breakout) S254 Sens gnd Sense sw Sig in Tan Tank signal Trans fuse 20 10a Twisted pair Vehicle control module (on left side of eng compt) 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 G2000 2500 List of elements for Interior Light Wiring Diagram (1 of 2) for Chevrolet Chevy Express G2000 2500: 82 (base: body harn, approx 36 cm to rear of front dome lamp breakout) (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, 11 cm from breakout to headlamp switch) s226 (i/p harn, 4 cm (left front door harn) s501 (left kick panel) (right front door harn) s603 (rke=remote keyless entry) (upfitter: body harn, approx 150 cm from convenience center breakout) A nca Ash- tray lamp Battery Bright adjust Center dome & reading lamp Ctsy fuse 3 20a Dome lamp Dome lamp override switch Dome switch Dr jamb sw From breakout to hvac controls) Front dome & reading lamp G200 G200 (behind left kick panel) G200 (left kick panel) G403 (right rear interior, behind rear wheelhouse) 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 Illuminated entry module (on right lower kick panel) Lamp Left front door jamb switch Left front power door lock switch Left front power window switch Left stepwell lamp Left sunshade mirror lamp Nca Non- base only Parade mode switch Park lps fuse 9 20a Park switch Pnk Power door lock control module (on left kick panel) Pwr accy fuse a 25a Reading lamps Rear dome & reading lamp Rear door jamb switch Remote control door lock receiver (behind center of dash) Right front door jamb switch Right front power door lock switch Right front power window switch Right stepwell lamp Right sunshade 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 Side stepwell lamp 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 G2000 2500 List of elements for Interior Light Wiring Diagram (2 of 2) for Chevrolet Chevy Express G2000 2500: 59 (4.3l & diesel only) (all others) (auxiliary heat w/ a/c) (auxiliary heat) (base) (gasoline) (gasoline) (diesel) (i/p harn, 4 cm from breakout to headlamp switch) (i/p harn, approx 17 cm from radio breakout) s223 (non- base) (non-base) (passenger) (rear aux htr & a/c harn, approx 7 cm from rear aux hvac module breakout) s310 Auxiliary blower motor switch B10 B12 B13 From headlamp switch (diagram 1 0f 2) Front auxiliary hvac control module G117 (right rear of engine) G119 (right front of engine) G125 (front of engine, near thermostat housing) G200 (behind left G402 (left rear interior, behind rear wheelhouse) Heater & a/c controller Horn fuse 20a Hot at all times Hot in accy & run Hot in run I/p fuse block Illum fuse 14 10a Instrument cluster Kick panel) Multi function alarm module Nca Odometer Pnk Prndl Radio Radio-i fuse 17 10a Rear auxiliary hvac control module Remote cd player S102 (gasoline) S103 S104 S127 S148 S152 s101 S201 S202 S220 S224 S254 (diesel) S318 S400 Trans fuse 20 10a Under- hood lamp Under- hood reel lamp Underhood fuse/relay center
POWER ANTENNA Power Antenna Wiring Diagram for Chevrolet Chevy Express G2000 2500 List of elements for Power Antenna Wiring Diagram for Chevrolet Chevy Express G2000 2500: 11 G200 (behind left kick panel) Hot at all times I/p fuse block (on left lower Pnk Power antenna assembly (right front fender) Radio Radio-b fuse 19 10a S202 S219 Side of dash) Solid state
POWER DISTRIBUTION Power Distribution Wiring Diagram (1 of 5) for Chevrolet Chevy Express G2000 2500 List of elements for Power Distribution Wiring Diagram (1 of 5) for Chevrolet Chevy Express G2000 2500: 96 (crossbody harness, approx 4 cm from convenience center conn breakout) (engine harn, top of engine) (i/p harness, approx 4 cm into tcc/stoplamp switch breakout) (rear a/c harn, approx 23 cm from blower motor resistor/ relay breakout) s412 (rear a/c harness, approx 7 cm from blower motor resistor breakout) (rear aux htr and a/c harness, approx 29 cm from rear aux hvac module breakout) A13 Abs fuse 60a Acc Ambulance Aux-a fuse 50a Aux-b fuse 50a Auxiliary battery Auxiliary blower motor high speed relay Auxiliary blower motor low speed relay Auxiliary blower motor medium speed relay Battery Battery junction block Blower fuse 60a Blower motor resistor relay Brake fuse 18 10a C202 C206 C210 C302 Convenience center Crank fuse 8 10a Cruise control module (gasoline) Cruise control switch Cruise fuse 6 10a Diesel Electronic brake control module (ebcm) From aux-a fuse (diagram 1 of 5) Front auxiliary hvac control module Fusible link (10 ga- rust) Fusible link (10 ga-rust) G200 (behind left kick panel) Gasoline Generator Glowplug relay Heater & a/c controller Heater & a/c control logic module Htr a/c fuse 12 20a I/p fuse block Ign-a fuse 40a Ign-b fuse 50a Ignition switch Left front power side window switch Lock Nca Off P/b booster fluid low alarm Park/ neutral position switch Passenger Pnk Pwr wdo fuse b 25a Radio Radio 1 fuse 17 10a Rear auxiliary hvac control module Rear auxiliary mode valve and seal assembly Rear auxiliary temperature valve assembly Red Resistor Right front power side window switch Rr blower fuse 30a Rr hvac fuse 24 10a Run S122 S201 S210 S213 S220 S229 S252 S307 S311 S312 S404 S405 Start Starter relay Starter solenoid Tcc/ stoplamp switch Temperature valve actuator motor To s214 (diagram 3 of 5) To trans fuse (diagram 4 of 5) To underhood fuse-relay center (diagram 2 of 5) To upfitter provision relay (diagram 1 of 5) Underhood fuse/relay center Upfitter provision connector Upfitter provision relay (behind left b pillar) Vehicle control module (vcm) (gasoline) 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 G2000 2500 List of elements for Power Distribution Wiring Diagram (2 of 5) for Chevrolet Chevy Express G2000 2500: 94 (4.3l, 5.0l, 5.7l) (6.5l, 5.0l, 5.7l: engine harness, approx 11-19 cm from bulkhead connector, 4.3l, 7.4l: engine harness, approx 65cm from underhood fuse relay center) s127 (6.5l: engine harn, approx 4 cm into into main harness breakout, 4.3l: engine harn, approx 19 cm from bulkhaed connector) s120 (4.3l & 6.5l) (crossbody harn, approx 14 cm from power door lock relay breakout) s232 (crossbody harness, left side of dash) s228 (i/p harn, 4 cm from radio breakout) s219 (i/p harn, 7 cm from instrument cluster breakout) s218 (i/p harn, approx 37 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 radio breakout) s227 (left body harn, 150 cm from convenience center connector s406 (left body harn, left interior roof panel) s406 (sun shade illum mirror harness, approx 7 cm from right sun shade lamp breakout) s308 (underhood lamp harn, approx 11 cm from reel lamp connector breakout) s148 (w/ lamp option) 4.3l & 6.5l 5.0l, 5.7l, & 7.4l A.i.r. fuse 30a A.i.r. relay A/c compressor enable relay A/c compressor fuse 10a Auxiliary power outlet Batt fuse 50a C13 C202 C210 Center dome lamp Cig ltr fuse 13 20a Cigarette lighter Convenience center Ctsy fuse 3 20a D13 Data link connector (dlc) Daytime running lamp (drl) diode module Drl fuse 15 15a Ecm-b fuse 20a From underhood b fuse-relay center (diagram 1 of 5) From underhood fuse-relay center (diagram 1 of 5) Front dome lamp Fuel pump relay G200 (behind left kick panel) Hazard fuse 5 20a Hazard warning switch Headlamp switch Heater & a/c controller Horn fuse 20a Horn relay Htd mir fuse 2 20a I/p compartment lamp I/p fuse block Illuminated entry module Left front power door lock switch Left power seat switch Left stepwell lamp Left sun shade mirror lamp Lighting fuse 40a Multi- function alarm module Park lps fuse 9 20a Passlock module Power antenna assembly Power door lock control module Power door lock relay Power outside rear view mirror remote control switch Powertrain control module (pcm) (diesel) 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 Right front power door lock switch Right power seat switch Right rear power door lock switch Right stepwell lamp Right sun shade mirror lamp Rr defog fuse 22 25a S205 S211 (i/p harness, approx 4 cm from park brake warning switch breakout) S221 Security fuse 21 10a Side door lock control Side stepwell lamp Stop fuse 1 20a Tcc/ stop- lamp switch Underhood fuse/relay center Underhood lamp Underhood reel lamp (w/ lamp option) Vehicle control module (vcm) (gasoline) W/ electric a W/ upfitter W/o upfitter Power Distribution Wiring Diagram (3 of 5) for Chevrolet Chevy Express G2000 2500 List of elements for Power Distribution Wiring Diagram (3 of 5) for Chevrolet Chevy Express G2000 2500: 39 (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 8 cm from fuel injector harness breakout) s132 (engine harn, approx 8 cm from fuel injector harness breakout) s133 (engine harness, approx 11 cm into main harness breakout) s117 (engine harness, approx 4 cm from egr valve breakout) s132 (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 & 7.4l 7.4l A/c compressor enable relay C11 C12 Crankshaft position (ckp) sensor Ecm-1 fuse 20a Epr solenoid From ignition switch (diagram 1 of 5) Fuel injectors 1, 3 & 5 Fuel injectors 1, 3, 5 & 7 Fuel injectors 1, 3, 5, & 7 Fuel injectors 2, 4 & 6 Fuel injectors 2, 4, 6 & 8 Fuel injectors 2, 4, 6, & 8 Glow plug relay Ign-e fuse 10a Ignition coil Ignition control module (icm) Pnk Powertrain control module (pcm) S214 (i/p harn, approx 17 cm from bulkhead connector) To eng-1 fuse (diagram 5 of 5) To i/p fuse block (diagram 4 of 5) Underhood fuse/relay center Vehicle control module (vcm) Waste gate solenoid Power Distribution Wiring Diagram (4 of 5) for Chevrolet Chevy Express G2000 2500 List of elements for Power Distribution Wiring Diagram (4 of 5) for Chevrolet Chevy Express G2000 2500: 35 (i/p harness, approx 30 cm from bulkhead connector) s217 (i/p harness, approx 8 cm from bulkhead connector breakout) s216 Air bags fuse 10 10a Automatic transmission B10 B17 Base C210 Convenience center Daytime running lamp (drl) control module Daytime running lamp (drl) relay Except base From ignition switch (diagram 1 of 5) From s214 (diagram 3 of 5) Fuel sender buffer module (diesel) Gauges fuse 4 10a Hazard warning switch Headlamp switch I/p fuse block I/p relay center Illum fuse 14 10a Illuminated entry module Inflatable restraint sensing & diagnositc control module Instrument cluster Interior lights system Interior lights system (i/p dimmer switch) Low engine coolant level indicator module (diesel) Multi- function alarm module Park/neutral position switch Passlock module Pnk Remote control door lock receiver or vehicle immobilizer module 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 G2000 2500 List of elements for Power Distribution Wiring Diagram (5 of 5) for Chevrolet Chevy Express G2000 2500: 34 (4.3l: engine harn, approx 117 cm from the underhood fuse/relay center, 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 5 cm from the ckp sensor breakout) s130 4.3l & 5.0l or 5.7l w/o a.i.r. injection reaction system 5.7l w/ a.i.r. injection reaction system 6.5l 7.4l A.i.r. relay Calif Camshaft position (cmp) sensor Crankshaft position (ckp) sensor Eng-1 fuse 20a Evaporative emission (evap) canister purge valve Evaporative emission (evap) canister vent valve Evaporative emission (evap) canister vent valve (calif) Federal 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 3 (4.3l) Heated oxygen sensor (ho2s) bank 1 sensor 3 (5.0l & 5.7l) Heated oxygen sensor (ho2s) bank 1 sensor 3 (calif) Heated oxygen sensor (ho2s) bank 2 sensor 1 Heated oxygen sensor (ho2s) bank 2 sensor 1 (calif) Heated oxygen sensor (ho2s) bank 2 sensor 2 Mass airflow (maf) sensor Pnk S130 (engine harn, left top of engine) S131 (engine harn, approx 6cm from the map sensor breakout) Underhood fuse/relay center W/ a.i.r. injection reaction system Water- in-fuel sensor
POWER DOOR LOCKS Power Door Lock Wiring Diagram for Chevrolet Chevy Express G2000 2500 List of elements for Power Door Lock Wiring Diagram for Chevrolet Chevy Express G2000 2500: 50 (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 G2000 2500 List of elements for Power Mirror Wiring Diagram for Chevrolet Chevy Express G2000 2500: 17 (behind left kick panel) g200 (left front door harness, approx 15 cm from power mirror motor connector) (right front door harness, approx 15 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 G2000 2500 List of elements for Power Seat Wiring Diagrams for Chevrolet Chevy Express G2000 2500: 31 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 G200 (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 G2000 2500 List of elements for Power Window Wiring Diagram for Chevrolet Chevy Express G2000 2500: 16 (left kick panel) g200 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 for Chevrolet Chevy Express G2000 2500 List of elements for Radio Wiring Diagrams for Chevrolet Chevy Express G2000 2500: 73 (left front door harn, approx 13cm from radio speaker breakout) s504 (left front door harn, approx 7cm from radio speaker breakout) s503 (right body harn, near center high mounted stoplamp breakout) s423 (right body harn, near center high mounted stoplamp breakout) s424 Antenna Anti-theft system Audio rtn Base Battery Convenience center (left side of dash) Diesel Dim ctrl Dim sig in Dim sig out Drain E&c line Except G200 (behind left kick panel) Gasoline Ground Hot at all times Hot in acc or run I/p fuse block Ignition Illuminaton Interior lights system Left front door speaker Left front door tweeter speaker Left overhead speaker Left rear door speaker Lf + Lf - Line Lr + Lr - Lt input Lt output Nca Pnk Power antenna assembly Premium Pwr antenna R14 in R14 out Radio Radio i fuse 17 10a Radio-b fuse 19 10a Red Remote compact disk player (below radio) Rf + Rf - Right front door speaker Right front door tweeter speaker Right overhead speaker Right rear door speaker Rr + Rr - Rt input Rt output S202 S219 S220 S239 (i/p harn, approx 10cm into radio breakout) S407 (left body harn near left "b" pillar) S419 (left body harn, near left "b" pillar) S605 (right front door harn, approx 7cm from power window motor breakout) S606 (right front door harn, approx 4cm from power window motor breakout) Tan Vehicle control module (left side of engine compt) Vehicle speed sensor buffer (below dash, near steering column) Vss signal W/ upfitter W/o upfitter
SHIFT INTERLOCKS Shift Interlock Wiring Diagram for Chevrolet Chevy Express G2000 2500 List of elements for Shift Interlock Wiring Diagram for Chevrolet Chevy Express G2000 2500: 10 A/t shift lock solenoid (right side of steering column) G200 (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 G2000 2500 List of elements for Charging Wiring Diagram for Chevrolet Chevy Express G2000 2500: 24 (100a) (124a) (not used) (right side of engine compartment, near fender well) g101 B l B16 B17 Battery Battery junction block (next to radiator) Charge indicator Fusible link (10 ga- rust) Gas engines Gauges fuse 4 10a Generator Generator (w/ ambulance package) Hot in run & start I/p fuse block (on left lower kick panel) Instrument cluster Pnk Power distribution system Red S158 (w/ambulance package) (engine harness, approximately 4 cm (1.6 in) from ground breakout, front of right cylinder head, toward a/c compressor) S216 Starting/charging system (starting circuit) Stud Starting Wiring Diagram for Chevrolet Chevy Express G2000 2500 List of elements for Starting Wiring Diagram for Chevrolet Chevy Express G2000 2500: 31 (6.5l, 4.3l) g125 (5.0l, 5.7l, 7.4l) g117 (6.5l, 4.3l: at generator bracket) (5.0l, 5.7l, 7.4l: rear of right cylinder head) (right side of engine compartment, near fender well) g101 Accy Auxiliary battery Batt Battery Battery junction block Crank fuse 8 10a Diesel Fusible link (10 ga- rust) G113 (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 G2000 2500 List of elements for Supplemental Restraint Wiring Diagram for Chevrolet Chevy Express G2000 2500: 43 (i/p harness, approx 39 cm into inflatable restraint sensing & diagnostic module) s209 A16 Air bag indicator Air bags fuse 10 10a B nca B17 Bar Data link connector (dlc) (under left side of dash) Driver side high Driver side low G200 (behind left kick panel) G200 (left kick panel) Gauges fuse 4 10a Ground Hot in run & start I/p fuse block (on lower left kick panel) Ignition Indicator ctrl Inflatable restraint diagnostic resistor Inflatable restraint front end discriminating sensor (on front of vehicle) Inflatable restraint i/p module Inflatable restraint sensing & diagnostic module (under left front seat) Inflatable restraint steering wheel module Inflatable restraint steering wheel module coil Instrument cluster Multi-function alarm module (under left side of dash) Nca Ohms Pass side high Pass side low Pnk S201 (i/p harness, near breakout to park brake warning switch) S208 (approximately 7 cm into inflatable restraint sensing & diagnostic module) S216 (i/p harn, 8 cm from breakout to conn at base of steering column) Seat belt sw Seat belt switch (open when buckled) (at driver's stationary belt connector) Sensor input Serial data Shorting Shorting bar Tan W/ pass sir W/o pass sir
TRANSMISSION
4.3L 4.3L VIN W, A/T Wiring Diagram, 4L60-E for Chevrolet Chevy Express G2000 2500 List of elements for 4.3L VIN W, A/T Wiring Diagram, 4L60-E for Chevrolet Chevy Express G2000 2500: 79 (dash harn, near (eng harn, 98 cm 1-2 shift sol 1-2 ss 2-3 shift sol 2-3 ss 3-2 downshift sol 3-2 ss 5v reference A/t fluid pressure manual valve position switch Anti-lock brakes system Anti-lock brakes system (electronic brake control module) Automatic transmission (4l60-e) B17 Battery in Brake fuse 18 10a Brake switch input Cruise control system Data class ii Data link connector (dlc) (partial) (under left side of dash) Ecm-b fuse 20a Ecm-i fuse 20a Ect sens input Engine controls system Engine controls system (fuel injectors) Engine controls system (fuel pump relay) Engine coolant temperature (ect) sensor (on top front of engine) From underhood fuse block, toward a/c compressor clutch breakout) G125 (front of engine, near thermostat housing) Gauges fuse 4 10a Hot at all times Hot in off, run, or start Hot in run Hot in run or start I/p fuse block (on left lower kick panel) Ignition in Instrument cluster Malfunction indicator lamp Mil control Park brake warning switch breakout) Passlock module, fuel sender buffer module, headlamp leveling switch, multifunction alarm module, vehicle speed sensor buffer, low engine coolant level indicator module, convenience center, drl control module, headlamp switch, ip relay center, left/right headlamp leveling actuators Pcm ground Pcs sol hi out Pcs sol lo out Pnk Pressure control solenoid valve Range signal "a" Range signal "b" Range signal "c" Red S102 S120 S122 S132 S133 (5.0l & 5.7l only) pnk S136 (engine harn) S139 (eng harn) S153 (eng harn) S154 S210 S216 S231 Sensor ground Sensor return Tan Tcc pwm sol Tcc sol Tcc/abs/ cruise switch Tcc/stoplamp switch (behind dash, on brake pedal support) Throttle position (tp) sensor (on side of throttle body) Tp sens input Trans fluid temp sensor Trans fuse 20 10a Trans temp sig in Underhood fuse/relay center (on left side of engine compt) Vehicle control module (vcm) (on left side of engine compt) Vehicle speed sensor (vss) (on left side of transmission) Vss hi (signal) Vss lo (ground) 4.3L VIN W, A/T Wiring Diagram, 4L80-E for Chevrolet Chevy Express G2000 2500 List of elements for 4.3L VIN W, A/T Wiring Diagram, 4L80-E for Chevrolet Chevy Express G2000 2500: 78 (dash harn, near (eng harn, 98 cm 2-3 shift sol 2-3 ss 3-2 shift sol 3-2 ss 5v reference A/t fluid pressure manual valve position switch A/t iss hi A/t iss lo Anti-lock brakes system Anti-lock brakes system (electronic brake control module) Automatic transmission (4l80-e) Automatic transmission input shaft speed sensor (on left side of transmission) B17 Battery in Brake fuse 18 10a Brake switch input Cruise control system Data class ii Data link connector (dlc) (partial) (under left side of dash) Ecm-b fuse 20a Ecm-i fuse 20a Ect sens input Engine controls system Engine controls system (fuel injectors) Engine controls system (fuel pump relay) Engine coolant temperature (ect) sensor (on top front of engine) From underhood fuse block, toward a/c compressor clutch breakout) G125 (front of engine, near thermostat housing) Gauges fuse 4 10a Hot at all times Hot in off, run, or start Hot in run Hot in run or start I/p fuse block (on left lower kick panel) Ignition in Instrument cluster Malfunction indicator lamp Mil control Park brake warning switch breakout) Passlock module, fuel sender buffer module, headlamp leveling switch, multifunction alarm module, vehicle speed sensor buffer, low engine coolant level indicator module, convenience center, drl control module, headlamp switch, ip relay center, left/right headlamp leveling actuators Pcm ground Pcs sol hi out Pcs sol lo out Pnk Pressure control solenoid valve Range signal "a" Range signal "b" Range signal "c" Red S102 S120 S122 S132 S133 (5.0l & 5.7l only) pnk S136 (engine harn) S139 (eng harn) S153 (eng harn) S154 S210 S216 S231 Sensor ground Sensor return Tcc pwm sol Tcc/abs/ cruise switch Tcc/stoplamp switch (behind dash, on brake pedal support) Throttle position (tp) sensor (on side of throttle body) Tp sens input Trans fluid temp sensor Trans fuse 20 10a Trans temp sig in Underhood fuse/relay center (on left side of engine compt) Vehicle control module (vcm) (on left side of engine compt) Vehicle speed sensor (vss) (on left side of transmission) Vss hi (signal) Vss lo (ground)
5.0L 5.0L VIN M, A/T Wiring Diagram, 4L60-E for Chevrolet Chevy Express G2000 2500 List of elements for 5.0L VIN M, A/T Wiring Diagram, 4L60-E for Chevrolet Chevy Express G2000 2500: 79 (dash harn, near (eng harn, 98 cm 1-2 shift sol 1-2 ss 2-3 shift sol 2-3 ss 3-2 downshift sol 3-2 ss 5v reference A/t fluid pressure manual valve position switch Anti-lock brakes system Anti-lock brakes system (electronic brake control module) Automatic transmission (4l60-e) B17 Battery in Brake fuse 18 10a Brake switch input Cruise control system Data class ii Data link connector (dlc) (partial) (under left side of dash) Ecm-b fuse 20a Ecm-i fuse 20a Ect sens input Engine controls system Engine controls system (fuel injectors) Engine controls system (fuel pump relay) Engine coolant temperature (ect) sensor (on top front of engine) From underhood fuse block, toward a/c compressor clutch breakout) G125 (front of engine, near thermostat housing) Gauges fuse 4 10a Hot at all times Hot in off, run, or start Hot in run Hot in run or start I/p fuse block (on left lower kick panel) Ignition in Instrument cluster Malfunction indicator lamp Mil control Park brake warning switch breakout) Passlock module, fuel sender buffer module, headlamp leveling switch, multifunction alarm module, vehicle speed sensor buffer, low engine coolant level indicator module, convenience center, drl control module, headlamp switch, ip relay center, left/right headlamp leveling actuators Pcm ground Pcs sol hi out Pcs sol lo out Pnk Pressure control solenoid valve Range signal "a" Range signal "b" Range signal "c" Red S102 S120 S122 S132 S133 (5.0l & 5.7l only) pnk S136 (engine harn) S139 (eng harn) S153 (eng harn) S154 S210 S216 S231 Sensor ground Sensor return Tan Tcc pwm sol Tcc sol Tcc/abs/ cruise switch Tcc/stoplamp switch (behind dash, on brake pedal support) Throttle position (tp) sensor (on side of throttle body) Tp sens input Trans fluid temp sensor Trans fuse 20 10a Trans temp sig in Underhood fuse/relay center (on left side of engine compt) Vehicle control module (vcm) (on left side of engine compt) Vehicle speed sensor (vss) (on left side of transmission) Vss hi (signal) Vss lo (ground) 5.0L VIN M, A/T Wiring Diagram, 4L80-E for Chevrolet Chevy Express G2000 2500 List of elements for 5.0L VIN M, A/T Wiring Diagram, 4L80-E for Chevrolet Chevy Express G2000 2500: 78 (dash harn, near (eng harn, 98 cm 2-3 shift sol 2-3 ss 3-2 shift sol 3-2 ss 5v reference A/t fluid pressure manual valve position switch A/t iss hi A/t iss lo Anti-lock brakes system Anti-lock brakes system (electronic brake control module) Automatic transmission (4l80-e) Automatic transmission input shaft speed sensor (on left side of transmission) B17 Battery in Brake fuse 18 10a Brake switch input Cruise control system Data class ii Data link connector (dlc) (partial) (under left side of dash) Ecm-b fuse 20a Ecm-i fuse 20a Ect sens input Engine controls system Engine controls system (fuel injectors) Engine controls system (fuel pump relay) Engine coolant temperature (ect) sensor (on top front of engine) From underhood fuse block, toward a/c compressor clutch breakout) G125 (front of engine, near thermostat housing) Gauges fuse 4 10a Hot at all times Hot in off, run, or start Hot in run Hot in run or start I/p fuse block (on left lower kick panel) Ignition in Instrument cluster Malfunction indicator lamp Mil control Park brake warning switch breakout) Passlock module, fuel sender buffer module, headlamp leveling switch, multifunction alarm module, vehicle speed sensor buffer, low engine coolant level indicator module, convenience center, drl control module, headlamp switch, ip relay center, left/right headlamp leveling actuators Pcm ground Pcs sol hi out Pcs sol lo out Pnk Pressure control solenoid valve Range signal "a" Range signal "b" Range signal "c" Red S102 S120 S122 S132 S133 (5.0l & 5.7l only) pnk S136 (engine harn) S139 (eng harn) S153 (eng harn) S154 S210 S216 S231 Sensor ground Sensor return Tcc pwm sol Tcc/abs/ cruise switch Tcc/stoplamp switch (behind dash, on brake pedal support) Throttle position (tp) sensor (on side of throttle body) Tp sens input Trans fluid temp sensor Trans fuse 20 10a Trans temp sig in Underhood fuse/relay center (on left side of engine compt) Vehicle control module (vcm) (on left side of engine compt) Vehicle speed sensor (vss) (on left side of transmission) Vss hi (signal) Vss lo (ground)
5.7L 5.7L VIN R, A/T Wiring Diagram, 4L60-E for Chevrolet Chevy Express G2000 2500 List of elements for 5.7L VIN R, A/T Wiring Diagram, 4L60-E for Chevrolet Chevy Express G2000 2500: 79 (dash harn, near (eng harn, 98 cm 1-2 shift sol 1-2 ss 2-3 shift sol 2-3 ss 3-2 downshift sol 3-2 ss 5v reference A/t fluid pressure manual valve position switch Anti-lock brakes system Anti-lock brakes system (electronic brake control module) Automatic transmission (4l60-e) B17 Battery in Brake fuse 18 10a Brake switch input Cruise control system Data class ii Data link connector (dlc) (partial) (under left side of dash) Ecm-b fuse 20a Ecm-i fuse 20a Ect sens input Engine controls system Engine controls system (fuel injectors) Engine controls system (fuel pump relay) Engine coolant temperature (ect) sensor (on top front of engine) From underhood fuse block, toward a/c compressor clutch breakout) G125 (front of engine, near thermostat housing) Gauges fuse 4 10a Hot at all times Hot in off, run, or start Hot in run Hot in run or start I/p fuse block (on left lower kick panel) Ignition in Instrument cluster Malfunction indicator lamp Mil control Park brake warning switch breakout) Passlock module, fuel sender buffer module, headlamp leveling switch, multifunction alarm module, vehicle speed sensor buffer, low engine coolant level indicator module, convenience center, drl control module, headlamp switch, ip relay center, left/right headlamp leveling actuators Pcm ground Pcs sol hi out Pcs sol lo out Pnk Pressure control solenoid valve Range signal "a" Range signal "b" Range signal "c" Red S102 S120 S122 S132 S133 (5.0l & 5.7l only) pnk S136 (engine harn) S139 (eng harn) S153 (eng harn) S154 S210 S216 S231 Sensor ground Sensor return Tan Tcc pwm sol Tcc sol Tcc/abs/ cruise switch Tcc/stoplamp switch (behind dash, on brake pedal support) Throttle position (tp) sensor (on side of throttle body) Tp sens input Trans fluid temp sensor Trans fuse 20 10a Trans temp sig in Underhood fuse/relay center (on left side of engine compt) Vehicle control module (vcm) (on left side of engine compt) Vehicle speed sensor (vss) (on left side of transmission) Vss hi (signal) Vss lo (ground) 5.7L VIN R, A/T Wiring Diagram, 4L80-E for Chevrolet Chevy Express G2000 2500 List of elements for 5.7L VIN R, A/T Wiring Diagram, 4L80-E for Chevrolet Chevy Express G2000 2500: 78 (dash harn, near (eng harn, 98 cm 2-3 shift sol 2-3 ss 3-2 shift sol 3-2 ss 5v reference A/t fluid pressure manual valve position switch A/t iss hi A/t iss lo Anti-lock brakes system Anti-lock brakes system (electronic brake control module) Automatic transmission (4l80-e) Automatic transmission input shaft speed sensor (on left side of transmission) B17 Battery in Brake fuse 18 10a Brake switch input Cruise control system Data class ii Data link connector (dlc) (partial) (under left side of dash) Ecm-b fuse 20a Ecm-i fuse 20a Ect sens input Engine controls system Engine controls system (fuel injectors) Engine controls system (fuel pump relay) Engine coolant temperature (ect) sensor (on top front of engine) From underhood fuse block, toward a/c compressor clutch breakout) G125 (front of engine, near thermostat housing) Gauges fuse 4 10a Hot at all times Hot in off, run, or start Hot in run Hot in run or start I/p fuse block (on left lower kick panel) Ignition in Instrument cluster Malfunction indicator lamp Mil control Park brake warning switch breakout) Passlock module, fuel sender buffer module, headlamp leveling switch, multifunction alarm module, vehicle speed sensor buffer, low engine coolant level indicator module, convenience center, drl control module, headlamp switch, ip relay center, left/right headlamp leveling actuators Pcm ground Pcs sol hi out Pcs sol lo out Pnk Pressure control solenoid valve Range signal "a" Range signal "b" Range signal "c" Red S102 S120 S122 S132 S133 (5.0l & 5.7l only) pnk S136 (engine harn) S139 (eng harn) S153 (eng harn) S154 S210 S216 S231 Sensor ground Sensor return Tcc pwm sol Tcc/abs/ cruise switch Tcc/stoplamp switch (behind dash, on brake pedal support) Throttle position (tp) sensor (on side of throttle body) Tp sens input Trans fluid temp sensor Trans fuse 20 10a Trans temp sig in Underhood fuse/relay center (on left side of engine compt) Vehicle control module (vcm) (on left side of engine compt) Vehicle speed sensor (vss) (on left side of transmission) Vss hi (signal) Vss lo (ground)
WARNING SYSTEMS Warning System Wiring Diagrams for Chevrolet Chevy Express G2000 2500 List of elements for Warning System Wiring Diagrams for Chevrolet Chevy Express G2000 2500: 42 (i/p harn, 39 cm into inflatable restraint sensing & diagnostic module breakout) (left kick panel) A12 Battery input C200 C210 Convenience center (under left side of dash) Fasten belts out G200 G200 (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 on input Illum mir fuse 14 10a Instrument cluster Instrument cluster system Key-in sw input Key-in warning switch (inside steering column assembly) Left front door jamb switch Lights on input Multi-function alarm module (under left side of dash) Nca Pnk S201 S202 S206 S209 S216 S222 S223 S500 Safety belt input Safety belt lamp Seat belt switch (opens with belt buckled) (in driver's stationary belt connector) Speed input Tan Upfitter package only
WIPER/WASHER Wiper/Washer Wiring Diagram for Chevrolet Chevy Express G2000 2500 List of elements for Wiper/Washer Wiring Diagram for Chevrolet Chevy Express G2000 2500: 21 (in dash harness, approximately 4 cm (2 in) from park brake warning switch breakout, toward dlc connector breakout) s201 Delay G200 (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 S252 Solid state Wash Washer switch Windshield washer pump motor (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
