Diagram sections — 26 (62 total)
AIR CONDITIONING ANTI-LOCK BRAKES COMPUTER DATA LINES CRUISE CONTROL DEFOGGERS ELECTRONIC POWER STEERING 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 A/C Wiring Diagram, Cargo Van for Chevrolet Chevy Van G1997 3500 List of elements for A/C Wiring Diagram, Cargo Van for Chevrolet Chevy Van G1997 3500: 76 (aux hvac harn, 14cm from aux hvac module breakout) (below i/p, right side of a/c plenum) temperature valve actuator motor (diesel) (gasoline) (i/p harn, 11 cm from radio 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 wheelhouse) (rear a/c harn, 7 cm from blower motor resistor breakout) (rear a/c harn, 7 cm from o/s air vlv actuator breakout) (rear a/c harness, 13 cm from blower motor resistor/relay breakout) (rear aux hvac harn, 29cm from rear aux hvac module breakout) A/c A/c compressor clutch coil A/c compressor clutch 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 (diesel) (in refrigerant line) A/c compressor low pressure cutoff switch (gasoline) (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 wheelhouse) Bi-lev Blend Blower motor Blower motor resistor/relay (at hvac control panel) C2 c C202 Convenience center Def Diode G120 (right side of engine) G200 (left kick panel) Gasoline diesel Heat Heater and a/c controller Hot at all times Hot in run Hot in run or start Htr-a/c fuse 12 20a Hvac fuse 60a 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 hvac fuse 24 10a S103 S152 S202 S215 S307 S318 S404 S405 (rear a/c harn, 7cm from blower resistor breakout) S411 S412 S413 Tan Temp Under- hood fuse/ relay center Valve assy Vehicle control module (in engine compt at left fender) powertrain control module (behind center of i/p) Vent Vent mode A/C Wiring Diagram, Passenger Van for Chevrolet Chevy Van G1997 3500 List of elements for A/C Wiring Diagram, Passenger Van for Chevrolet Chevy Van G1997 3500: 86 (aux hvac harn, 14cm from aux hvac module breakout) (aux hvac harn, 26 cm from aux hvac module breakout) (aux hvac harn, 57 cm from aux hvac module breakout) (below i/p, right side of a/c plenum) temperature valve actuator motor (diesel) (front interior roof panel) (gasoline) (i/p harn, 11 cm from radio 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 wheelhouse) (rear a/c harn, 7 cm from blower motor resistor breakout) (rear a/c harn, 7 cm from o/s air vlv actuator breakout) (rear a/c harness, 13 cm from blower motor resistor/relay breakout) (rear aux hvac harn, 29cm from rear aux hvac module breakout) (rear hvac harn, 13 cm from aux hvac module breakout) A/c A/c compressor clutch coil A/c compressor clutch 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 (diesel) (in refrigerant line) A/c compressor low pressure cutoff switch (gasoline) (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 wheelhouse) Bi-lev Blend Blower motor Blower motor resistor/relay (at hvac control panel) C2 c C202 Convenience center Def Diode Front auxiliary hvac control module G120 (right side of engine) G200 (left kick panel) Gasoline diesel Heat Heater and a/c control logic module Heater and a/c controller Hot at all times Hot in run Hot in run or start Htr-a/c fuse 12 20a Hvac fuse 60a 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 S103 S152 S202 S215 S307 S318 S319 S320 S321 S404 S405 (rear a/c harn, 7cm from blower resistor breakout) S411 S412 S413 Tan Temp Under- hood fuse/ relay center Valve assy Vehicle control module (in engine compt at left fender) powertrain control module (behind center of i/p) Vent Vent mode Heater Wiring Diagram for Chevrolet Chevy Van G1997 3500 List of elements for Heater Wiring Diagram for Chevrolet Chevy Van G1997 3500: 43 (i/p harness, 11 cm from breakout to power antenna) (in engine harness) (left body harness, near chmsl) (left rear of cabin, behind rear wheelhouse) (rear a/c harness,13 cm from blower motor resistor breakout) (rear a/c harness,7 cm from blower motor resistor breakout) 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 wheelhouse) Blend Blower motor Blower motor resistor/relay (at hvac control panel) C202 Convenience center Def G120 (right side of engine) 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 Hvac fuse 60a I/p fuse block Interior lights system Med Off Rear auxiliary hvac control module Red Rr blower fuse 30a Rr hvac fuse 24 10a S152 S215 S400 S405 S412 S413 Tan Underhood fuse/relay center Vent
ANTI-LOCK BRAKES
4.3L 4.3L (VIN W), Anti-lock Brake Wiring Diagrams for Chevrolet Chevy Van G1997 3500 List of elements for 4.3L (VIN W), Anti-lock Brake Wiring Diagrams for Chevrolet Chevy Van G1997 3500: 54 (engine harn, near injector breakout) (engine harn, near trans- mission) (front of engine) (left front bracket) (left side of dash) data link connector A13 Abs fuse 60a Abs ind Abs lamp control B17 Brake diode d101 (underhood fuse-relay center) Brake fuse 18 10a Brake ind Brake lamp control Brake pressure differential switch Brake sw input Brake sw output Daytime running lamps control (left side of dash) Ebcm ground Electronic brake control module (on left frame rail) G110 G125 Gauges fuse 4 10a Hot at all times Hot in run or start I/p fuse block Ign Instrument cluster Left front wheel speed sensor Lft frt sensor (+) Lft frt sensor (-) Pnk Pump motor ground Pump motor power Red Right front wheel speed sensor Rt frt sensor (+) Rt frt sensor (-) S102 S153 S154 S156 S216 Serial data line Serial data signal Tan Tcc/ stoplamp switch (brake pedal support) Underhood fuse-relay center Vehicle control module (left side of engine compt) Vehicle speed sensor (left side of transmission) Vehicle speed sig Vss (+) Vss (-) Vss sig
5.0L 5.0L (VIN M), Anti-lock Brake Wiring Diagrams for Chevrolet Chevy Van G1997 3500 List of elements for 5.0L (VIN M), Anti-lock Brake Wiring Diagrams for Chevrolet Chevy Van G1997 3500: 54 (engine harn, near injector breakout) (engine harn, near trans- mission) (front of engine) (left front bracket) (left side of dash) data link connector A13 Abs fuse 60a Abs ind Abs lamp control B17 Brake diode d101 (underhood fuse-relay center) Brake fuse 18 10a Brake ind Brake lamp control Brake pressure differential switch Brake sw input Brake sw output Daytime running lamps control (left side of dash) Ebcm ground Electronic brake control module (on left frame rail) G110 G125 Gauges fuse 4 10a Hot at all times Hot in run or start I/p fuse block Ign Instrument cluster Left front wheel speed sensor Lft frt sensor (+) Lft frt sensor (-) Pnk Pump motor ground Pump motor power Red Right front wheel speed sensor Rt frt sensor (+) Rt frt sensor (-) S102 S153 S154 S156 S216 Serial data line Serial data signal Tan Tcc/ stoplamp switch (brake pedal support) Underhood fuse-relay center Vehicle control module (left side of engine compt) Vehicle speed sensor (left side of transmission) Vehicle speed sig Vss (+) Vss (-) Vss sig
5.7L 5.7L (VIN R), Anti-lock Brake Wiring Diagrams for Chevrolet Chevy Van G1997 3500 List of elements for 5.7L (VIN R), Anti-lock Brake Wiring Diagrams for Chevrolet Chevy Van G1997 3500: 54 (engine harn, near injector breakout) (engine harn, near trans- mission) (front of engine) (left front bracket) (left side of dash) data link connector A13 Abs fuse 60a Abs ind Abs lamp control B17 Brake diode d101 (underhood fuse-relay center) Brake fuse 18 10a Brake ind Brake lamp control Brake pressure differential switch Brake sw input Brake sw output Daytime running lamps control (left side of dash) Ebcm ground Electronic brake control module (on left frame rail) G110 G125 Gauges fuse 4 10a Hot at all times Hot in run or start I/p fuse block Ign Instrument cluster Left front wheel speed sensor Lft frt sensor (+) Lft frt sensor (-) Pnk Pump motor ground Pump motor power Red Right front wheel speed sensor Rt frt sensor (+) Rt frt sensor (-) S102 S153 S154 S156 S216 Serial data line Serial data signal Tan Tcc/ stoplamp switch (brake pedal support) Underhood fuse-relay center Vehicle control module (left side of engine compt) Vehicle speed sensor (left side of transmission) Vehicle speed sig Vss (+) Vss (-) Vss sig
COMPUTER DATA LINES Computer Data Lines for Chevrolet Chevy Van G1997 3500 List of elements for Computer Data Lines for Chevrolet Chevy Van G1997 3500: 29 (4.3l-engine harness, 4 cm from ground breakout to right front of engine, 5.0l & 5.7l-engine harness, 17 cm from fuel injector breakout, 7.4l-engine harness, 15 cm from bulkhead connector, diesel-engine harness, 27 cm from main harness breakout) (left kick panel) (near thermostat housing) C210 Convenience center (left side of i/p) Data clss Data clss b Data link connector (below left side of i/p) Diag sig Diesel Electronic brake control module (left frame rail near center of vehicle) G125 G200 Gasoline Hot at all times I/p fuse block Inflatable restraint sensing and diagnostic module (under driver's seat) Power steering control module (center of i/p) Powertrain control module (center of i/p) Prog signal Pwr aux fuse 7 25a Remote control door lock receiver (upper right kick panel) S112 S201 S207 (i/p harness, approx 4 cm into vssb breakout) S218 Serial data Tan Vehicle control module (left front fender apron)
CRUISE CONTROL
4.3L 4.3L (VIN W), Cruise Control Wiring Diagram for Chevrolet Chevy Van G1997 3500 List of elements for 4.3L (VIN W), Cruise Control Wiring Diagram for Chevrolet Chevy Van G1997 3500: 38 (i/p harn, 17 cm into vssb breakout) (i/p harn, left rear of engine compt) 4000 pulses/mile A12 A13 A14 A15 Brake fuse 18 10a Cruise control module (front of engine compt near left fender) Cruise fuse 6 10a Cruise on input Cruise status Cruise switch Disengage input Fuse block G120 (right side of engine) Ground Hot at all times Hot in run Ignition Multifunction lever Off R/a Resume/accel input S/c S112 S113 S114 S210 S239 Set/coast input Stop fuse 1 25a Tcc/stoplamp brake switch (below center of i/p) Vehicle control module (vcm) (in engine compt, on left fender) Vehicle speed input Vehicle speed sensor (vss) (left side of transmission) Vss return Vss signal
5.0L 5.0L (VIN M), Cruise Control Wiring Diagram for Chevrolet Chevy Van G1997 3500 List of elements for 5.0L (VIN M), Cruise Control Wiring Diagram for Chevrolet Chevy Van G1997 3500: 38 (i/p harn, 17 cm into vssb breakout) (i/p harn, left rear of engine compt) 4000 pulses/mile A12 A13 A14 A15 Brake fuse 18 10a Cruise control module (front of engine compt near left fender) Cruise fuse 6 10a Cruise on input Cruise status Cruise switch Disengage input Fuse block G120 (right side of engine) Ground Hot at all times Hot in run Ignition Multifunction lever Off R/a Resume/accel input S/c S112 S113 S114 S210 S239 Set/coast input Stop fuse 1 25a Tcc/stoplamp brake switch (below center of i/p) Vehicle control module (vcm) (in engine compt, on left fender) Vehicle speed input Vehicle speed sensor (vss) (left side of transmission) Vss return Vss signal
5.7L 5.7L (VIN R), Cruise Control Wiring Diagram for Chevrolet Chevy Van G1997 3500 List of elements for 5.7L (VIN R), Cruise Control Wiring Diagram for Chevrolet Chevy Van G1997 3500: 38 (i/p harn, 17 cm into vssb breakout) (i/p harn, left rear of engine compt) 4000 pulses/mile A12 A13 A14 A15 Brake fuse 18 10a Cruise control module (front of engine compt near left fender) Cruise fuse 6 10a Cruise on input Cruise status Cruise switch Disengage input Fuse block G120 (right side of engine) Ground Hot at all times Hot in run Ignition Multifunction lever Off R/a Resume/accel input S/c S112 S113 S114 S210 S239 Set/coast input Stop fuse 1 25a Tcc/stoplamp brake switch (below center of i/p) Vehicle control module (vcm) (in engine compt, on left fender) Vehicle speed input Vehicle speed sensor (vss) (left side of transmission) Vss return Vss signal
DEFOGGERS Heated Mirrors Wiring Diagram for Chevrolet Chevy Van G1997 3500 List of elements for Heated Mirrors Wiring Diagram for Chevrolet Chevy Van G1997 3500: 19 (behind left kick panel) g200 C210 Convenience center (under left side of dash) G203 (right kick panel) 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 outside rear view mirror Right power outside rear view mirror S201 S202 S206 S215 Solid state timer W/ upfitter provisions only
ELECTRONIC POWER STEERING Electronic Power Steering Wiring Diagram for Chevrolet Chevy Van G1997 3500 List of elements for Electronic Power Steering Wiring Diagram for Chevrolet Chevy Van G1997 3500: 36 (under left side of i/p) data link connector (dlc) 1995 vftc c 5 volt ref Battery feed Computer data lines system Diesel Evo fuse 21 10a Evo sol feed Evo sol output G110 (5.0l, 5.7l, 7.4l) (left front of engine) G119 (4.3l) (right front of engine) Gas Gauges fuse 4 10a Ground Hot at all times Hot in run or start I/p fuse block Ignition Pnk Position signal Power steering control module (below center of i/p) Power steering fluid flow actuator (on steering pump) S112 S207 (i/p harn, approx 4 cm in to vssb breakout) S213 S239 (i/p harn, approx 17 cm into vssb breakout) Sen rtn Sens out Sensor return Srl data class b Steering wheel position sensor (on steering column) Vehicle control module (vcm) (in engine compt, left fender) Vehicle speed sensor buffer (left side of i/p) Volt ref Vss out Vss signal input
ENGINE PERFORMANCE
4.3L 4.3L (VIN W), Engine Performance Wiring Diagrams (1 of 4) for Chevrolet Chevy Van G1997 3500 List of elements for 4.3L (VIN W), Engine Performance Wiring Diagrams (1 of 4) for Chevrolet Chevy Van G1997 3500: 53 (lower front of engine, near crankshaft) crankshaft position sensor (near thermostat housing) g125 (right side of engine) evaporative canister purge solenoid valve (top right side of engine) A/c coil ground A/c compressor enable relay Camshaft position sensor (part of distributor, top rear of engine) Coil Coil a high Coil a low Coil b high Coil b low Egr sol posit signal Egr solenoid output G119 (engine harness at generator bracket; right front of engine) Heated oxygen sensor bank 1 sensor 1 (in exhaust pipe, in front of catalytic converter) Heated oxygen sensor bank 1 sensor 2 (in exhaust pipe, in back of catalytic converter) Heated oxygen sensor bank 2 sensor 1 (in exhaust pipe, in front of catalytic converter) Idle air control valve motor Ignition Inj no.1 ctrl Inj no.2 ctrl Inj no.3 ctrl Inj no.4 ctrl Inj no.5 ctrl Inj no.6 ctrl Knock sens signal Knock sensor (top rear of engine) Maf signal Map sens signal Nca Pnk Pnk c Return S101 S102 S103 S301 Sensor signal Shift sol. a output Shift sol. b output Shift sol. output (3/2) Signal Solenoid output Solid state Tan Tcc pwm sol ctrl Tcc solenoid output Trans temp sens signal Underhood fuse-relay center Vcm ground Vehicle control module (vcm) (engine compartment, left fender) Vss signal output 4.3L (VIN W), Engine Performance Wiring Diagrams (2 of 4) for Chevrolet Chevy Van G1997 3500 List of elements for 4.3L (VIN W), Engine Performance Wiring Diagrams (2 of 4) for Chevrolet Chevy Van G1997 3500: 34 (o2s jumper harness, approx 22 cm from breakout toward o2s pigtail connector) s304 1-2 shift solenoid 2-3 shift solenoid 3-2 shift solenoid Automatic transmission Eng-1 mini fuse 20a Exhaust gas recirculation valve solenoid (right side of engine) Fuel inj. no.1 Fuel inj. no.2 Fuel inj. no.3 Fuel inj. no.4 Fuel inj. no.5 Fuel inj. no.6 H7 ecm-1 mini fuse 20a Heated oxygen sensor bank 1 sensor 3 (in exhaust pipe, in back of catalytic converter) Hot in run or start Nca Note: fuel injectors are located in central sfi, mounted on lower portion of intake manifold Pnk Pnk pnk pnk Press. switch signal bit 1 Press. switch signal bit 2 Press. switch signal bit 3 Pressure control solenoid Pwr Red S130 S132 S133 Tan Tcc pwm solenoid Tcc sol. Temp. sensor signal Under hood fuse-relay center 4.3L (VIN W), Engine Performance Wiring Diagrams (3 of 4) for Chevrolet Chevy Van G1997 3500 List of elements for 4.3L (VIN W), Engine Performance Wiring Diagrams (3 of 4) for Chevrolet Chevy Van G1997 3500: 46 (engine harness at generator bracket; right front of engine) g119 (engine harness, approx 12 cm from fuel injector breakout) (engine harness, approx 15 cm from egr sensor breakout) (engine harness, approx 33 cm from egr sensor breakout) (engine harness, approx 4 cm from ect sensor breakout) (engine harness, near thermostat housing) B14 B17 Ecm-b mini fuse 20a Engine coolant temperature sensor (left side of engine) Evap canister purge vacuum diagnostic switch (right side of engine) F11 Fuel pump and sender (in fuel tank under rear of vehicle) Fuel pump prime connector Fuel pump relay Fuel pump switch and engine oil pressure gauge sensor G119 (engine harness at generator bracket, right front of engine) G12 G125 Gauge input oil pressure Gauges fuse 4 10a Hot at all times Hot in off, run or start Hot in run or start I/p fuse block Input odometer speedometer/ Instrument cluster Intake air temperature sensor (part of air intake duct, front of engine compartment) Malfunction indicator lamp (mil) "service engine soon" Manifold absolute pressure sensor (top right side of engine) Mass air flow sensor (part of air intake duct, top front of engine) Pnk Red S102 S120 S136 S137 S138 S139 S216 Tan Tan a Throttle position sensor (top left side of engine) Trans fuse 20 10a Underhood fuse-relay center Vehicle speed sensor (left side of transmission) 4.3L (VIN W), Engine Performance Wiring Diagrams (4 of 4) for Chevrolet Chevy Van G1997 3500 List of elements for 4.3L (VIN W), Engine Performance Wiring Diagrams (4 of 4) for Chevrolet Chevy Van G1997 3500: 57 (engine harness at generator bracket; right front of engine) g119 (engine harness, 20 cm from fuel injector breakout) (engine harness, 4 cm from breakout to ground towards transmission) s153 (engine harness, 8 cm from breakout to ground towards transmission) (i/p harness, approx 17 cm into vss breakout) (i/p harness, approx 27 cm from engine sensors inline conn. toward bulkhead) 5 volt reference 5 volts reference A/c signal Air conditioning system Battery Brake switch input Cruise control module (front of engine compartment near left fender) Cruise ctrl sig-eng Data link connector (under left side of i/p) Distributor Electronic brake control module (ebcm) (left frame rail near center of vehicle) Est control signal Fuel pump rly ctrl Ground High voltage coil wire Hot in run I/p fuse block Ignition Ignition coil (top right side of engine) Ignition control module (top right side of engine) M4 brake fuse 18 10a n3 Mal func ind out Pnk Pnk a Power steering control module (center of i/p) Radio Red S103 S113 S122 S154 S210 S239 Sensor ground Serial data Service circuit power Signal Solid state Speed sensor input Stoplamp switch input Tcc signal Tcc/stoplamp switch (below center of i/p, near brake pedal lever) Trans press sig-bit 1 Trans press sig-bit 2 Trans press sig-bit 3 Trans. force mtr feed Trans. force mtr rtn Vcm signal Vehicle control module (engine compartment, left fender) Vss signal Vss signal output
5.0L 5.0L (VIN M), Engine Performance Wiring Diagrams (1 of 4) for Chevrolet Chevy Van G1997 3500 List of elements for 5.0L (VIN M), Engine Performance Wiring Diagrams (1 of 4) for Chevrolet Chevy Van G1997 3500: 52 (lower front of engine, near crankshaft) crankshaft position sensor (right side of engine) evaporative emission canister purge valve (top left side of engine) idle air control valve A/c compressor enable relay Camshaft position sensor (part of distributor, top rear of engine) Coil Coil "a" hi Coil "a" lo Coil "b" hi Coil "b" lo Egr sol output Fuel inj out no.1 Fuel inj out no.2 Fuel inj out no.3 Fuel inj out no.4 Fuel inj out no.5 Fuel inj out no.6 Fuel inj out no.7 Fuel inj out no.8 G117 (right rear of engine) Ground Heated oxygen sensor bank 1 sensor 1 (in exhaust pipe in front of catalytic converter) Heated oxygen sensor bank 1 sensor 2 (in exhaust pipe in back of catalytic converter) Heated oxygen sensor bank 1 sensor 3 (in exhaust pipe in back of catalytic converter) Ignition Knock sens signal Knock sensor (top rear of engine) Maf signal Map sens signal Nca Pnk Pnk c Position signal Return S101 S103 S301 S304 Sensor signal Shift sol a output Shift sol b output Shift solenoid output Signal Solenoid output Solid state Tan Tcc sol output Temp sens signal Underhood fuse-relay center Vehicle control module (engine compartment, left fender) Vehicle speed sensor (left side of transmission) Vss signal 5.0L (VIN M), Engine Performance Wiring Diagrams (2 of 4) for Chevrolet Chevy Van G1997 3500 List of elements for 5.0L (VIN M), Engine Performance Wiring Diagrams (2 of 4) for Chevrolet Chevy Van G1997 3500: 37 (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 mini fuse 20a Exhaust gas recirculation valve (top front of engine) Fuel inj. no.1 Fuel inj. no.2 Fuel inj. no.3 Fuel inj. no.4 Fuel inj. no.5 Fuel inj. no.6 Fuel inj. no.7 Fuel inj. no.8 Heated oxygen sensor bank 2 sensor 1 (in exhaust pipe in front of catalytic converter) Hot in run or start Ignition K7 eng-1 mini fuse 20a l8 Nca Pnk Pnk tan Pressure control solenoid valve Red S130 S131 S132 S133 Tan Tcc pcm solenoid valve Tcc solenoid vlave Temp sensor ground Temp sensor signal Under hood fuse-relay center W/4l60e 4-speed trans. only 5.0L (VIN M), Engine Performance Wiring Diagrams (3 of 4) for Chevrolet Chevy Van G1997 3500 List of elements for 5.0L (VIN M), Engine Performance Wiring Diagrams (3 of 4) for Chevrolet Chevy Van G1997 3500: 45 (engine harness, approx 12 cm from fuel injector breakout) (engine harness, approx 15 cm from egr sensor breakout) (engine harness, approx 33 cm from egr sensor breakout) (engine harness, approx 4 cm from ect sensor breakout) (right rear of engine) g117 B14 B17 Ecm-b mini fuse 20a Engine coolant temperature gauge sensor (top front of engine) Evaporative emission (evap) canister vacuum switch (right side of engine) F11 Fuel pump and sender (in fuel tank under rear of vehicle) Fuel pump prime connector Fuel pump relay Fuel pump switch & engine oil pressure gauge sensor 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 (part of air intake duct, front of engine compartment) Malfunction indicator lamp (mil) "service engine soon" Manifold absolute pressure sensor (top right side of engine) Mass air flow sensor (part of air intake duct, top front of engine) Oil pressure gauge input Pnk Pnk tan Red S101 S102 S120 S136 S137 S138 S139 S157 S216 Speedometer/ odometer input Tan Tan b Throttle position sensor (top left side of engine) Trans fuse 20 10a Underhood fuse-relay center 5.0L (VIN M), Engine Performance Wiring Diagrams (4 of 4) for Chevrolet Chevy Van G1997 3500 List of elements for 5.0L (VIN M), Engine Performance Wiring Diagrams (4 of 4) for Chevrolet Chevy Van G1997 3500: 56 (engine harness, 20 cm from fuel injector breakout) (engine harness, 4 cm grom breakout to ground towards transmission) s153 (i/p harness, approx 17 cm into vss breakout) (i/p harness, approx 27 cm from engine sensors inline conn. toward bulkhead) (right rear of engine) g117 5 volt reference 5 volts reference A/c signal Air conditioning system Automatic transmission input shaft speed sensor (w/4l80-e) (left side of transmission) Battery Brake switch input Cruise control module (front of engine compartment near left fender) Cruise ctrl sig eng Data link connector (under left side of i/p) Distributor Elec spark timing Electronic brake control module (ebcm) (left frame rail near center of vehicle) Force motor feed Force motor return Fuel pump rly feed Ground High voltage coil wire Hot in run I/p fuse block Ignition Ignition coil (top right side of engine) Ignition control module (top right side of engine) M4 brake fuse 18 10a n3 Mal func lp output Pnk Pnk a Power steering control module (center of i/p) Pressure sw signal Radio Red Return S101 S113 S122 S154 S210 S239 Sensor ground Serial data Service circuit power Signal Solid state Speed sensor input Stoplamp switch input Tcc signal Tcc/stoplamp switch (below center of i/p, near brake pedal lever) Vcm signal Vehicle control module (engine compartment, left fender) Vss signal Vss signal output
5.7L 5.7L (VIN R), Engine Performance Wiring Diagrams (1 of 4) for Chevrolet Chevy Van G1997 3500 List of elements for 5.7L (VIN R), Engine Performance Wiring Diagrams (1 of 4) for Chevrolet Chevy Van G1997 3500: 52 (lower front of engine, near crankshaft) crankshaft position sensor (right side of engine) evaporative emission canister purge valve (top left side of engine) idle air control valve A/c compressor enable relay Camshaft position sensor (part of distributor, top rear of engine) Coil Coil "a" hi Coil "a" lo Coil "b" hi Coil "b" lo Egr sol output Fuel inj out no.1 Fuel inj out no.2 Fuel inj out no.3 Fuel inj out no.4 Fuel inj out no.5 Fuel inj out no.6 Fuel inj out no.7 Fuel inj out no.8 G117 (right rear of engine) Ground Heated oxygen sensor bank 1 sensor 1 (in exhaust pipe in front of catalytic converter) Heated oxygen sensor bank 1 sensor 2 (in exhaust pipe in back of catalytic converter) Heated oxygen sensor bank 1 sensor 3 (in exhaust pipe in back of catalytic converter) Ignition Knock sens signal Knock sensor (top rear of engine) Maf signal Map sens signal Nca Pnk Pnk c Position signal Return S101 S103 S301 S304 Sensor signal Shift sol a output Shift sol b output Shift solenoid output Signal Solenoid output Solid state Tan Tcc sol output Temp sens signal Underhood fuse-relay center Vehicle control module (engine compartment, left fender) Vehicle speed sensor (left side of transmission) Vss signal 5.7L (VIN R), Engine Performance Wiring Diagrams (2 of 4) for Chevrolet Chevy Van G1997 3500 List of elements for 5.7L (VIN R), Engine Performance Wiring Diagrams (2 of 4) for Chevrolet Chevy Van G1997 3500: 37 (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 mini fuse 20a Exhaust gas recirculation valve (top front of engine) Fuel inj. no.1 Fuel inj. no.2 Fuel inj. no.3 Fuel inj. no.4 Fuel inj. no.5 Fuel inj. no.6 Fuel inj. no.7 Fuel inj. no.8 Heated oxygen sensor bank 2 sensor 1 (in exhaust pipe in front of catalytic converter) Hot in run or start Ignition K7 eng-1 mini fuse 20a l8 Nca Pnk Pnk tan Pressure control solenoid valve Red S130 S131 S132 S133 Tan Tcc pcm solenoid valve Tcc solenoid vlave Temp sensor ground Temp sensor signal Under hood fuse-relay center W/4l60e 4-speed trans. only 5.7L (VIN R), Engine Performance Wiring Diagrams (3 of 4) for Chevrolet Chevy Van G1997 3500 List of elements for 5.7L (VIN R), Engine Performance Wiring Diagrams (3 of 4) for Chevrolet Chevy Van G1997 3500: 45 (engine harness, approx 12 cm from fuel injector breakout) (engine harness, approx 15 cm from egr sensor breakout) (engine harness, approx 33 cm from egr sensor breakout) (engine harness, approx 4 cm from ect sensor breakout) (right rear of engine) g117 B14 B17 Ecm-b mini fuse 20a Engine coolant temperature gauge sensor (top front of engine) Evaporative emission (evap) canister vacuum switch (right side of engine) F11 Fuel pump and sender (in fuel tank under rear of vehicle) Fuel pump prime connector Fuel pump relay Fuel pump switch & engine oil pressure gauge sensor 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 (part of air intake duct, front of engine compartment) Malfunction indicator lamp (mil) "service engine soon" Manifold absolute pressure sensor (top right side of engine) Mass air flow sensor (part of air intake duct, top front of engine) Oil pressure gauge input Pnk Pnk tan Red S101 S102 S120 S136 S137 S138 S139 S157 S216 Speedometer/ odometer input Tan Tan b Throttle position sensor (top left side of engine) Trans fuse 20 10a Underhood fuse-relay center 5.7L (VIN R), Engine Performance Wiring Diagrams (4 of 4) for Chevrolet Chevy Van G1997 3500 List of elements for 5.7L (VIN R), Engine Performance Wiring Diagrams (4 of 4) for Chevrolet Chevy Van G1997 3500: 56 (engine harness, 20 cm from fuel injector breakout) (engine harness, 4 cm grom breakout to ground towards transmission) s153 (i/p harness, approx 17 cm into vss breakout) (i/p harness, approx 27 cm from engine sensors inline conn. toward bulkhead) (right rear of engine) g117 5 volt reference 5 volts reference A/c signal Air conditioning system Automatic transmission input shaft speed sensor (w/4l80-e) (left side of transmission) Battery Brake switch input Cruise control module (front of engine compartment near left fender) Cruise ctrl sig eng Data link connector (under left side of i/p) Distributor Elec spark timing Electronic brake control module (ebcm) (left frame rail near center of vehicle) Force motor feed Force motor return Fuel pump rly feed Ground High voltage coil wire Hot in run I/p fuse block Ignition Ignition coil (top right side of engine) Ignition control module (top right side of engine) M4 brake fuse 18 10a n3 Mal func lp output Pnk Pnk a Power steering control module (center of i/p) Pressure sw signal Radio Red Return S101 S113 S122 S154 S210 S239 Sensor ground Serial data Service circuit power Signal Solid state Speed sensor input Stoplamp switch input Tcc signal Tcc/stoplamp switch (below center of i/p, near brake pedal lever) Vcm signal Vehicle control module (engine compartment, left fender) Vss signal Vss signal output
EXTERIOR LIGHTS Back-up Lamps Wiring Diagram for Chevrolet Chevy Van G1997 3500 List of elements for Back-up Lamps Wiring Diagram for Chevrolet Chevy Van G1997 3500: 17 C202 Convenience center (under left side of dash) 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 backup lamp Park/neutral position switch (left side of transmission) Pnk Right backup 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 Van G1997 3500 List of elements for Exterior Lamps Wiring Diagram, with Composite Headlamps for Chevrolet Chevy Van G1997 3500: 78 (1997) (1998) (center high mount stoplamp harness, behind chmsl) s422 (dash harness, 4cm into head- lamp switch breakout) s225 (forward lamp harn, 26cm into left forward lamp harness) s142 (forward lamp harness, 26cm 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 C202 Center high mounted stop lamp (chmsl) Convenience center (under left side of dash) Cruise control system E1 c202 E6 c202 F c406 G100 (left front of engine compartment) G101 (right front of engine compartment) G105 (right rear 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 Instru- ment cluster Interior lights system Left Left front inner park/ turn signal lamp Left front outer park/ turn signal lamp Left rear park & stop tail lamp Left rear park & turn signal lamp Left side marker lamp Left turn indic 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 rear park & turn signal lamp Right rear park/stop/ tail lamp Right side marker lamp Right turn indic S110 S114 (dash harn, left rear of engine compartment) S118 S145 (forward lamp harness, 15cm into right forward lamps breakout) S202 S217 S222 S236 (dash harness, 4cm from dlc breakout) S237 (dash harness, base of steering column, near cluster breakout) S402 (left body harn, behind left taillamp assembly) S410 (left body harn, near chmsl connector breakout) S421 S904 S909 S910 Stop fuse 25a 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 (behind dash, on dash relay center) W/ optional trailer wiring package (right rear of interior) Exterior Lamps Wiring Diagram, with Sealed Beam Headlamps for Chevrolet Chevy Van G1997 3500 List of elements for Exterior Lamps Wiring Diagram, with Sealed Beam Headlamps for Chevrolet Chevy Van G1997 3500: 76 (1997) (1998) (center high mount stoplamp harness, behind chmsl) s422 (dash harness, 4cm into head- lamp switch breakout) s225 (forward lamp harness, 26cm 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 C202 Center high mounted stop lamp (chmsl) Convenience center (under left side of dash) Cruise control system E1 c202 E6 c202 F c406 G100 (left front of engine compartment) G101 (right front of engine compartment) G105 (right rear 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 Instru- ment cluster Interior lights system Left Left front park/turn signal lamp Left rear park & stop tail lamp Left rear park & turn signal lamp Left side marker lamp Left turn indic 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 rear park & turn signal lamp Right rear park/stop/ tail lamp Right side marker lamp Right turn indic S110 S114 (dash harn, left rear of engine compartment) S118 S142 (forward lamp harn, 26cm into left forward lamp harness) S202 S217 S222 S236 (dash harness, 4cm from dlc breakout) S237 (dash harness, base of steering column, near cluster breakout) S402 (left body harn, behind left taillamp assembly) S410 (left body harn, near chmsl connector breakout) S421 S904 S909 S910 Stop fuse 25a 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 (behind dash, on dash relay center) W/ optional trailer wiring package (right rear of interior)
GROUND DISTRIBUTION Ground Distribution Wiring Diagram (1 of 3) for Chevrolet Chevy Van G1997 3500 List of elements for Ground Distribution Wiring Diagram (1 of 3) for Chevrolet Chevy Van G1997 3500: 84 (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 4 cm from radio breakout) (left side (lower i/p harness, approx 15 cm from connector near i/p compartment door) (middle of left frame rail) (not used) e13 (right frame rail, near front of engine) (right front (right kick panel) (right lower front of engine) (under brake master cylinder) (upfitter provision) (w/ upfitter provisions) A/t shift lock solenoid Ashtray lamp Auxiliary battery (6.5l vin f) Auxiliary power outlet Battery C210 Cigarette lighter Convenience center Convenience center (left side of i/p) Data link connector a Daytime running lamp control module Daytime running lamps relay From left front power door lock switch (diagram 2 of 3) From right front power side window switch (diagram 2 of 3) G100 G100 (left front of engine compt) G101 G101 (right front of engine compt) G116 G118 G119 G200 (behind left kick panel) G203 Headlamp switch Heater and a/c controller I/p compartment lamp I/p relay center Ignition switch Illuminated entry module Instrument cluster Left front park and turn signal lamp (inner) (w/ composite headlamps) Left front park and turn signal lamp (outer) (w/ composite headlamps) Left front park and turn signal lamp (w/ sealed beam headlamps) Left front side marker lamp Left headlamp (w/ sealed beam headlamps) Left low beam headlamp (w/ composite headlamps) Left power seat switch Left sun shade mirror lamp Low engine coolant level indicator module (6.5l vin f) Low engine coolant level indicator sensor (diesel) Multi- function alarm module Nca Of engine compt) P/b booster fluid flow switch Power antenna assembly Power door lock control module Power door lock relay Radio Remote control door lock receiver Right front park and turn signal lamp (inner) (w/ composite headlamps) Right front park and turn signal lamp (outer) (w/ composite headlamps) Right front park and turn signal lamp (w/ sealed beam headlamps) 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 6 cm from park brake warning switch breakout) S202 S204 (sun shade harness, approx 60 cm from breakout to connector behind right kick panel) S205 S206 (upfitter provision-crossbody harness, approx 24 cm from power door lock relay breakout, others-crossbody harness, approx 4 cm from breakout to connector near left side of i/p) Seat belt switch Side door jamb switch (w/ upfitter provisions) Steering column ground Temperature valve actuator motor Upfitter provisions relay W/ upfitter provisions Windshield washer pump motor Windshield wiper motor Ground Distribution Wiring Diagram (2 of 3) for Chevrolet Chevy Van G1997 3500 List of elements for Ground Distribution Wiring Diagram (2 of 3) for Chevrolet Chevy Van G1997 3500: 77 (4.3l-engine harness, approx 20 cm from knock sensor breakout, 5.0l or 5.7l-engine harness, approx 4 cm from ignition coil breakout, 7.4l-engine harness, approx 14 cm from fuel injector breakout) (4.3l-engine harness, approx 4 cm from fuel injector breakout, 5.0l or 5.7l-approx 10 cm from egr sensor breakout, 7.4l-engine harness, approx 4 cm from ect sensor breakout) (5.0l, 5.7l, 7.4l) g110 (4.3l) g119 (front of engine) (front of engine, near thermostat housing) (i/p harness, approx 40 cm from bulkhead connector) (left front door harness, approx 7 cm from power window switch breakout) (left front of engine) (right front of engine) (o2s jumper harness, 15-77 cm from breakout to connector near starter motor) (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) 4.3l 4.3l, 7.4l 4.3l, gvw over 8500 lbs., federal emissions 5.0l, 5.7l 5.0l, 5.7l, 7.4l 7.4l 7.4l only A/c compressor clutch coil A/c low pressure cutout switch B13 Blower motor resistor/ relay Brake pressure differential switch Cruise control module Data link connector Diode Electronic brake control module Evap emission canister vacuum switch Except 4.3l Except 7.4l Fuel pump and sender Fuel pump relay G125 G200 (left kick panel) Gasoline engines Heated oxygen sensor bank 1 sensor 3 Heated oxygen sensor, bank 1 sensor 1 Heated oxygen sensor, bank 1 sensor 2 Heated oxygen sensor, bank 1 sensor 3 Heated oxygen sensor, bank 2 sensor 1 Horns Ignition control module Inflatable restraint front end discriminating sensor Inflatable restraint sensing and 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 Mass air flow sensor Nca Others Others except 7.4l Park/ neutral position switch Power outside rear view mirror remote control switch Power steering control module Right front door jamb switch Right front power door lock switch Right front power side window switch Right power outside rear view mirror S101 S102 (4.3l-engine harness, approx 22 cm from egr sensor breakout, 5.0l, 5.7l-engine harness, approx 37 cm from ect sensor breakout, 7.4l-engine harness, approx 5 cm from maf sensor breakout) S103 S104 S112 S152 (7.4l-engine harness, 5 cm from oxygen sensor breakout, except 7.4l-engine harness, 4-16 cm from fuel injector breakout) S157 (engine harness, 30 cm from maf sensor breakout) S208 (i/p harness, approx 7 cm into inflatable restraint sensing and diagnostic module breakout) S301 Secondary air injection pump motor (7.4l only) Secondary air injection reaction pump clutch Starter relay To g203 Underhood fuse-relay center Underhood lamp Underhood reel lamp Vehicle control module Ground Distribution Wiring Diagram (3 of 3) for Chevrolet Chevy Van G1997 3500 List of elements for Ground Distribution Wiring Diagram (3 of 3) for Chevrolet Chevy Van G1997 3500: 73 (35 gal) (55 gal) (aux htr and a/c harness, approx 14 cm from front aux hvac module breakout) (engine harness, approx 22 cm from optical fuel temperature sensor breakout) (engine harness, approx 24 cm from grommet under right side of i/p) (i/p harness, approx 40 cm from bulkhead connector) (left front of engine) (underhood lamp harness, approx 4 cm from breakout to connector near blower motor) (upfitter provision-left body harness, approx 7 cm from breakout to connector behind left rear wheelhouse, others-left body harness, approx 7 cm from breakout to connector behind left rear lens assembly) A/c compressor clutch coil Ambulance package Auxiliary blower motor Auxiliary blower motor switch B13 Blower motor resistor/ relay Brake pressure differential switch Center high mounted stoplamp Data link connector Diesel engines Diode Electronic brake control module Front auxiliary hvac control module Fuel heater Fuel lift pump Fuel pump relay Fuel tank level sender G110 G125 (front of engine, near thermostat housing) G402 (left rear interior, behind rear wheel house) G403 (right rear interior, behind rear wheel house) Glow plug relay Heater and a/c control logic module Horns Instrument cluster Left back-up lamp Left rear park/ stop lamp Left rear park/ turn lamp License lamp Nca Park/ neutral position switch Passenger vans only Power steering control module Powertrain control module Rear auxiliary hvac control module Rear auxiliary mode valve and seal assembly Rear auxiliary temperature valve assembly Right back-up lamp Right power seat switch Right rear door jamb switch Right rear park/ stop lamp Right rear park/ turn lamp S101 S102 (engine harness, approx 4 cm from main harness breakout) S104 S112 S157 S303 (right body harness, approx 7 cm from side door jamb switch)\ S318 S400 S401 (left body harness, approx 7 cm from connector breakout to left rear of vehicle) S411 (rear a/c harness, approx 7 cm from o/s air valve actuator breakout) S421 (center high mount stoplamp harness, approx 60 cm from breakout to connector under rear center of headliner) S904 (right rear door harness, approx 29 cm from door jamb switch breakout) S909 (right taillamp harness, approx 7 cm from pass-through grommet) S910 (left taillamp harness, approx 7 cm from pass-through grommet) Side door jamb switch Starter relay Underhood fuse-relay center Underhood lamp Underhood reel lamp Vehicle speed sensor buffer W/ auxiliary heat & a/c Water-in- fuel indicator W/ auxiliary heat only
HEADLIGHTS Headlight Wiring Diagram, with Composite Headlamps for Chevrolet Chevy Van G1997 3500 List of elements for Headlight Wiring Diagram, with Composite Headlamps for Chevrolet Chevy Van G1997 3500: 62 (forward lamp harn, approx 19cm from left forward lamp breakout toward right) 17a A17 Acc B17 Brake ind ctrl Brake psi in Breakout) Bulb test C200 Daytime running lamps module (under left side of i/p, taped to i/p harness) Daytime running lamps relay (under left side of i/p, on convenience center) Drl diode module Drl fuse 15 10a Drl indicator Drl relay ctrl E11 c200 E12 E13 F f G100 (left front of engine compt) G101 (right front of engine compt) G200 (behind left kick panel) Gauges fuse 4 10a Ground Head Headlamp dimmer switch Headlamp switch High beam indicator Hot at all times Hot in run or start I/p fuse block (left kick panel) Ign (run/st) Ign key status Ignition switch Instrument cluster Instrument cluster system Lamp feed Left high beam headlamp lamp Left low beam headlamp lamp Lighting maxi fuse 40a Lock Off Park Park brake in Park brake warning switch (on park brake) Pnk Red Right high beam headlamp lamp Right low beam headlamp lamp Run S118 S143 S144 (forward lamp harn, approx 19cm from left forward lamp S201 S202 S211 S216 S234 (i/p harn, approx 36cm from 36-pin left bulkhead conn) breakout) Start Tan Underhood fuse-relay center (engine compt, left fender) Headlight Wiring Diagram, with Sealed Beam Headlamps for Chevrolet Chevy Van G1997 3500 List of elements for Headlight Wiring Diagram, with Sealed Beam Headlamps for Chevrolet Chevy Van G1997 3500: 59 17a A17 Acc B17 Brake ind ctrl Brake psi in Bulb test C200 Daytime running lamps module (under left side of i/p, taped to i/p harness) Daytime running lamps relay (under left side of i/p, on convenience center) Drl diode module Drl fuse 15 10a Drl indicator Drl relay ctrl E11 c200 E12 E13 F f G100 (left front of engine compt) G101 (right front of engine compt) G200 (behind left kick panel) Gauges fuse 4 10a Ground Head Headlamp dimmer switch Headlamp switch High beam indicator Hot at all times Hot in run or start I/p fuse block (left kick panel) Ign (run/st) Ign key status Ignition switch Instrument cluster Instrument cluster system Lamp feed Left headlamp Lighting maxi fuse 40a Lock Off Park Park brake in Park brake warning switch (on park brake) Pnk Red Right headlamp Run S118 S119 S143 (forward lamp harn, approx 19cm from left forward lamp breakout toward right) S144 (forward lamp harn, approx 19cm from left forward lamp breakout) S201 S202 S211 S216 S234 (i/p harn, approx 36cm from 36-pin left bulkhead conn) breakout) Start Tan Underhood fuse-relay center (engine compt, left fender)
HORN Horn Wiring Diagram for Chevrolet Chevy Van G1997 3500 List of elements for Horn Wiring Diagram for Chevrolet Chevy Van G1997 3500: 13 (4.3l) g119 (others) g110 (right front of engine) (left front of engine) (steering column ground) Horn brush Horn fuse 20a Horn relay Horn switch Horns (left front of vehicle) Hot at all times Nca S103 (gasoline) s101 (diesel) Turn signal switch Underhood fuse/relay center
INSTRUMENT CLUSTER Instrument Cluster Wiring Diagram (2 of 2) for Chevrolet Chevy Van G1997 3500 List of elements for Instrument Cluster Wiring Diagram (2 of 2) for Chevrolet Chevy Van G1997 3500: 59 (below right (i/p harn, right side of i/p) +5v 1.5k Anti-lock brakes system Batt Diesel Engine oil pressure indicator sender (top rear of engine) Fuel lev Fuel pump and sender (in fuel tank) Fuel pump switch & engine oil pressure gauge sensor (top rear of engine) Fuel sender buffer module Fuel tank level sender (in fuel tank) G110 (l65) (on a/c compressor bracket) G110 (on a/c compressor bracket) G116 (under brake master cylinder) Gasoline Gnd Hot in acc or run Hot in run I/p fuse block (behind left side of i/p) Ign Ignition Ind ctrl Inline diode d202 (near park brake switch) Low flow Low pres. Nca P/b booster fluid flow alarm P/b booster fluid flow alarm switch P/b booster fluid flow and pressure alarm delay module P/b pressure warning switch Park brake warning switch Pnk Powertrain control module (behind center of i/p) Radio, electronic power steering system Radio-i fuse 17 10a Resistor r208 (w/ uj1) (near i/p fuse block) S101 S112 S137 S220 S238 (i/p harn, 4 cm from cluster breakout) Sens gnd Sens rtn Sens sig Sensor Side of i/p) Sw sense Tan Trans fuse 24 10a Twisted pair Vehicle control module (on left radiator support) Vehicle speed sensor (left rear of transmission) Vehicle speed sensor buffer (diesel only) (behind left side of i/p) Vss out Vss rtn Vss sig W/ p/b booster warning-uj1
INTERIOR LIGHTS Interior Light Wiring Diagram (1 of 3) for Chevrolet Chevy Van G1997 3500 List of elements for Interior Light Wiring Diagram (1 of 3) for Chevrolet Chevy Van G1997 3500: 91 (base only) (behind right rear wheel well) (body harn, 33 cm from stepwell lamp breakout toward roof) (i/p harn, 11 cm from breakout to headlamp switch) (i/p harn, 4 cm (left kick (right body harn, 13 cm from side door jamb switch breakout) (right body harn, 7 cm from side door jamb switch breakout) (right rear wheel well) Ash- tray lamp B5 (not used) Base Battery Bright adjust C202 C210 C210 c1 C210 c6 Center dome and reading lamp (reading lamps w/ tr9 option) Convenience center (left side of i/p) Csty fuse 3 20a Dome lamp Dome lamp defeat switch Dome switch E10 From breakout to headlamp switch) Front dome and reading lamp (reading lamps w/ tr9 option) G200 G200 (left kick panel) G203 (right kick panel) G403 Gauges fuse 4 10a Ground Headlamp switch Hot at all times Hot in run or start I/p compart- ment lamp I/p fuse block Ignition Illuminated entry module (right kick panel) Jamb sw Lamp Left front door jamb switch Left power door lock switch Left power side window switch Left stepwell lamp (w/ tr9 option) Left sunshade mirror lamp Non base Non base only Non base upfitter prov. Panel) Parade mode switch Park lps fuse 9 20a Park switch Pnk Power door lock control module (right kick panel) Power mirrors system Pwr accy circuit breaker 25a Reading lamps Rear dome and reading lamp (reading lamps w/ tr9 option) Rear door jamb switch Rear stepwell lamp (w/ tr9 option) Right front door jamb switch Right power door lock switch Right power side window switch Right stepwell lamp (w/ tr9 option) Right sunshade mirror lamp S201 S202 S204 S205 S206 S216 S221 S225 S226 S227 S303 S305 S306 S308 S309 S316 (w/o power door locks only) S406 S500 S501 S601 S603 S904 Side door jamb switch W/o keyless entry Interior Light Wiring Diagram (2 of 3) for Chevrolet Chevy Van G1997 3500 List of elements for Interior Light Wiring Diagram (2 of 3) for Chevrolet Chevy Van G1997 3500: 96 (base only) (behind right rear wheel well) (cross body harn, 13 cm from power door lock relay breakout) (i/p harn, 11 cm from breakout to headlamp switch) (i/p harn, 4 cm (left kick panel) (lf door harn, 7 cm from power window switch breakout) (rf door harn, 5 cm from power window switch breakout) (right rear wheel well) (w/ up) (w/ up: cross body harn, 14 cm from power door lock relay breakout) (w/o up) (w/o up) (w/ up) (w/o up: right body harn, 13 cm from side door jamb switch breakout) (w/o up: right body harn, 7 cm from side door jamb switch breakout; w/ up: cross body harn, 8 cm from remote control door lock breakout) 1995 vftc c Ash- tray lamp Base Battery Bright adjust C202 C210 Center dome and reading lamp (reading lamps w/ tr9 option) Convenience center (left side of i/p) Convenience center (left side of i/p) Csty fuse 3 20a Dome lamp Dome lamp defeat switch Dome switch E10 From breakout to headlamp switch) Front dome and reading lamp (reading lamps w/ tr9 option) G200 G200 (left kick panel) G203 (right kick panel) G403 Gauges fuse 4 10a Ground Headlamp switch Hot at all times Hot in run or start I/p compart- ment lamp I/p fuse block Ignition Jamb sw Lamp Left front door jamb switch Left power door lock switch Left power side window switch Left stepwell lamp (w/ tr9 option) Left sunshade mirror lamp Non base Non base only Parade mode switch Park lps fuse 9 20a Park switch Pnk Power door lock control module (right kick panel) Power mirrors system Pwr accy circuit breaker 25a Reading lamps Rear dome and reading lamp (reading lamps w/ tr9 option) Rear door jamb switch Remote control door lock receiver (right kick panel) Right front door jamb switch Right power door lock switch Right power side window switch Right sunshade mirror lamp S201 S204 S206 S216 S221 S225 S226 S227 S228 S230 S232 S240 S303 (base only) S305 s230 S306 S308 S309 S406 S500 S501 S601 S904 Side door jamb switch Up=upfitter provision) Upfitter prov. W/ keyless entry W/ up W/o up Interior Light Wiring Diagram (3 of 3) for Chevrolet Chevy Van G1997 3500 List of elements for Interior Light Wiring Diagram (3 of 3) for Chevrolet Chevy Van G1997 3500: 48 (i/p harn, 17 cm from breakout to headlamp switch) 1995 vftc c Auxiliary blower motor switch Auxiliary heat Auxiliary heat w/ a/c B12 B13 Base C202 Cargo Convenience center (left side of i/p) Dim Front auxiliary hvac control module G125 (front of engine) G125 (near thermostat housing) G200 (left kick G402 (left rear wheel well) Heater and a/c controller Horn mini fuse 20a Hot at all times I/p fuse block Illum fuse 14 10a Instrument cluster Multi function alarm module Non base Odometer Panel) Passenger Prndl Radio Radio b fuse 19 10a Rear auxiliary hvac control module Remote cd player S104 S112 S1219 S127 S148 S201 S202 S223 S224 S310 S318 S400 Under- hood lamp Under- hood reel lamp Underhood fuse-relay center
POWER ANTENNA Power Antenna Wiring Diagram for Chevrolet Chevy Van G1997 3500 List of elements for Power Antenna Wiring Diagram for Chevrolet Chevy Van G1997 3500: 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 4) for Chevrolet Chevy Van G1997 3500 List of elements for Power Distribution Wiring Diagram (1 of 4) for Chevrolet Chevy Van G1997 3500: 103 (crossbody harness, approx 4 cm from convenience center conn breakout) (i/p harness, approx 21 cm from bulkhead connector) (i/p harness, approx 24 cm from bulkhead connector) s213 (i/p harness, approx 4 cm from bulkhead connector) (i/p harness, approx 4 cm into tcc/stoplamp breakout) (rear a/c harness, approx 13 cm from blower motor resistor/ relay breakout) (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) (upfitter provision harness) red (upfitter provisions harness, approx 52 cm from grommet pass- through) Abs maxi- fuse 60a Acc Aux-a maxi- fuse 30a Aux-b maxi- fuse 30a 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 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 Diesel ambulance Electronic brake control module From fuse above Front auxiliary hvac control module Fusible link (10 ga- rust) Fusible link (10 ga-rust) G200 (left kick panel) Gasoline Generator Generator (w/ yf2) Glowplug relay Heater and a/c control logic module Heater and a/c controller Htr a/c fuse 12 20a Hvac maxi- fuse 60a I/p fuse block Ign-a maxi- fuse 40a Ign-b maxi- fuse 50a Ignition switch Inline fuse 30a Left power side window switch Lock Nca Off P/b booster fluid flow alarm Park/ neutral position switch Pnk Pwr wdo cb 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 power side window switch Rr blower mini fuse 30a Rr hvac fuse 24 10a Run S122 (engine harness) S125 (engine harness, approx 10 cm into bulkhead connector breakout) S134 S210 S220 S229 S307 S311 S312 S322 S404 S405 S412 Start Starter relay Starter solenoid Tcc/ stoplamp switch Temperature valve actuator motor To i/p fuse block (diagram 4 of 4) To underhood fuse-relay center (diagram 2 of 4) To underhood fuse-relay center (diagram 3 of 4) To upfitter provision relay below Trailer wiring provision Underhood fuse-relay center Upfitter provision connector Upfitter provision relay (behind left b pillar) Vehicle control module (gasoline) W/ uj1 brake warning W/ upfitter provisions Windshield washer/ wiper switch Windshield wiper motor Wiper fuse 11 25a Power Distribution Wiring Diagram (2 of 4) for Chevrolet Chevy Van G1997 3500 List of elements for Power Distribution Wiring Diagram (2 of 4) for Chevrolet Chevy Van G1997 3500: 94 (crossbody harness, approx 14 cm from power door lock relay breakout) s232 (crossbody harness, left side of i/p) (gasoline-engine harness, approx 11-65 cm from bulkhead connector, diesel-engine harness, approx 19 cm from underhood fuse relay center) s127 (gasoline-engine harness, approx 4-19 cm from bulkhead connector, diesel-engine harness, approx 4 cm into main harness breakout) (i/p harness, approx 11 cm from radio breakout) s227 (i/p harness, approx 33 cm from bulkhead connector) (i/p harness, approx 37 cm from bulkhead connector) s212 (i/p harness, approx 4 cm into power seat harness breakout) (i/p harness, approx 7 cm into radio breakout) (i/p harness, approx 8 cm into i/p relay center breakout) (right body harness, approx 13 cm from side door jamb switch breakout) (right body harness, approx 7 cm from power seat switch breakout) (sun shade illum mirror harness, approx 7 cm from right sun shade lamp breakout) (underhood lamp harness, approx 11 cm from reel lamp connector breakout) s148 (upfitter provision-left body harness, approx 150 cm from aux blower motor switch breakout, others-left body harness, approx 29 cm from breakout to front interior roof panel connector) s406 A/c comp mini fuse 20a A/c compressor enable relay Auxiliary power outlet Bat/haz maxi- 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 Drl diode module Drl fuse 15 10a Ecm-b mini fuse 20a From underhood b fuse-relay center (diagram 1 of 4) From underhood fuse-relay center (diagram 1 of 4) Front dome lamp Fuel pump relay Fuel pump switch and engine oil pressure gauge sensor G200 (left kick panel) Hazard fuse 5 20a Hazard warning switch Headlamp switch Heater and a/c controller Horn mini 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 maxi- fuse 40a Multi- function alarm module Nca Others Park lps fuse 9 20a Power antenna assembly Power door lock control module Power door lock relay Power outside rear view mirror remote control switch Power steering control module Powertrain control module (diesel) Pwr accy cb a 25a Pwr aux fuse 7 10a Radio Radio-b fuse 19 10a Rear dome lamp Rear stepwell lamp 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 S120 S205 S211 (i/p harness, approx 23 cm into headlamp switch breakout) S218 S219 S221 S222 S300 S308 S309 Security strg fuse 21 10a Stop fuse 1 25a Tcc/stop lamp switch Underhood fuse-relay center Underhood lamp Underhood reel lamp Vehicle control module (gasoline) W/ upfitter provisions Power Distribution Wiring Diagram (3 of 4) for Chevrolet Chevy Van G1997 3500 List of elements for Power Distribution Wiring Diagram (3 of 4) for Chevrolet Chevy Van G1997 3500: 74 (engine harness, appprox 4 cm from heated right oxygen sensor breakout) (engine harness, approx 11 cm into main harness breakout) (engine harness, approx 15 cm into fuel injector harness breakout) (engine harness, approx 24 cm from bulkhead connector) (engine harness, approx 4 cm from connector at left top of engine) (engine harness, approx 4 cm from egr valve breakout) 5.0l, 5.7l (engine harness, approx 4 cm from fuel injector harness breakout) (engine harness, approx 6 cm from map sensor breakout) (engine harness, approx 8 cm from egr sensor breakout) (engine harness, approx 8 cm from fuel injector harness breakout) (engine harness, approx 8 cm into fuel injector harness breakout) (engine jumper harness, approx 2 cm from optical fuel temperature sensor breakout) (engine jumper harness, approx 4 cm into engine shutoff solenoid breakout) (gasoline-engine harness, approx 8-15 cm from fuel injector harness, diesel-engine harness, approx 4 cm into horn breakout) s133 (i/p harness, approx 17 cm from bulkhead connector) s214 (o2s jumper harness, 22-35 cm from breakout to connector near starter) (o2s jumper harness, approx 22 cm from connector breakout near starter) (o2s jumper harness, approx 66 cm from connector breakout near starter) 4.3l 5.0l, 5.7l 6.5l 7.4l A/c compressor enable relay C11 C12 Camshaft position sensor Crankshaft position sensor Diesel Diesel fuel mini fuse 20a Ecm-i mini fuse 20a Eng-i mini fuse 20a Engine shut off solenoid Evap emission canister purge valve Exhaust gas recirculation valve From ignition switch (diagram 1 of 4) Fuel heater 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 Fuel solenoid driver Gasoline Glow plug relay Heated oxygen sensor, bank 1 sensor 1 Heated oxygen sensor, bank 1 sensor 2 Heated oxygen sensor, bank 1 sensor 3 Heated oxygen sensor, bank 2 sensor 1 Heated oxygen sensor, bank 2 sensor 2 Ign-e mini fuse 20a Ignition coil Ignition control module Mass air flow sensor Pnk Pnk (engine harness, approx 5 cm from ckp sensor breakout) s130 Pnk s131 Pnk s304 Powertrain control module S107 S108 S117 pnk S130 S131 S132 S132 pnk S133 pnk S304 Secondary air injection pump relay To i/p fuse block (diagram 4 of 4) Underhood fuse-relay center Vehicle control module Waste gate solenoid Water in fuel indicator sensor Power Distribution Wiring Diagram (4 of 4) for Chevrolet Chevy Van G1997 3500 List of elements for Power Distribution Wiring Diagram (4 of 4) for Chevrolet Chevy Van G1997 3500: 33 (i/p harness, approx 30 cm from bulkhead connector) s217 Air bags fuse 10 10a Automatic transmission B10 B17 C2 pnk C210 Convenience center Daytime running lamp control module Daytime running lamps relay From ignition switch (diagram 1 of 4) Fuel sender buffer module Gauges fuse 4 10a Headlamp switch I/p fuse block I/p relay center Illum fuse 14 10a Illuminated entry module Inflatable restraint 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 Pnk Pnk (i/p harness, approx 4 cm from breakout to connector at base of steering column) s216 Power steering control module Remote control door lock receiver Trans fuse 20 10a Turn b/u fuse 16 20a Turn signal switch Vehicle speed sensor buffer (diesel)
POWER DOOR LOCKS Door Lock Wiring Diagram for Chevrolet Chevy Van G1997 3500 List of elements for Door Lock Wiring Diagram for Chevrolet Chevy Van G1997 3500: 37 (crossbody harn, near power lock relay breakout) s243 (right body harness, 7cm from power seat switch breakout) (w/ passenger power seat only) s300 Base models Battery (b+) Convenience center (left side of dash) Door lock control module (right kick panel) Door lock relay (right kick panel) G200 (left kick panel) Ground Hot at all times I/p fuse block (left side of dash) Left door lock switch Left front door lock actuator Lock Lock sig Preferred equipment or upfitter package Pwr accy c.b. 25a Rear door lock actuator Right door lock switch Right front door lock actuator Right rear door lock switch S206 S221 S228 S241 (crossbody harness, near power lock relay breakout) S242 (crossbody harn, near power lock relay breakout) S244 (crossbody harn, near power lock relay breakout) S303 (w/ pwr pass seat) S314 (right body harness, 26cm from side door jamb switch harn breakout) S315 (right body harn, 19cm from side door jamb switch harness breakout) Side door contactor (right "b" pillar) Side door jamb switch Side door lock actuator Side door sw Tan Unlock Unlock sig Keyless Entry Wiring Diagram for Chevrolet Chevy Van G1997 3500 List of elements for Keyless Entry Wiring Diagram for Chevrolet Chevy Van G1997 3500: 53 (crossbody harn, near power lock relay breakout) s243 (right body harness, 7cm from power seat switch breakout) (w/ passenger power seat only) s300 Base models Batt (b+) Battery (b+) Convenience center (left side of dash) Data link connector (under left side of dash) Dome lamps Dome lmp off Door lock control module (right kick panel) Door lock relay (right kick panel) Driver dr unlk G200 (left kick panel) Gauges fuse 4 10a Ground Hot at all times Hot in run, bulb test or start I/p fuse block (left side of dash) Ignition Interior lights system Left door lock switch Left front door lock actuator Lock Lock out Lock sig Pass drs unlk Pnk Preferred equipment or upfitter package Program sig Pwr accy c.b. 25a Rear door lock actuator Remote control door lock receiver (upper right kick panel) Right door lock switch Right front door lock actuator Right rear door lock switch 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) S303 (w/ pwr pass seat) S315 (right body harn, 19cm from side door jamb switch harness 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 Van G1997 3500 List of elements for Power Mirror Wiring Diagram for Chevrolet Chevy Van G1997 3500: 20 (cross body harn, approx 14 cm from power door lock relay breakout) s232 (left door harn, approx 15 cm from power mirror motor conn) (right door harn, approx 15 cm from power mirror switch conn) C210 Ctsy fuse 3 20a G200 (behind left kick panel) Hot at all times I/p fuse block Interior lights system Left mirror Left power outside rear view mirror Power outside rear view mirror remote control switch Right mirror Right power outside rear view mirror Right/ left motor S227 S500 S502 S604 Up/ down motor
POWER SEATS 6-Way Power Seat Wiring Diagram for Chevrolet Chevy Van G1997 3500 List of elements for 6-Way Power Seat Wiring Diagram for Chevrolet Chevy Van G1997 3500: 34 All- down All-up Back C210 d2 Convenience center (under left side of i/p) Down Entire seat For- ward Front down Front up G200 (behind left kick panel) G402 (right rear interior, behind rear wheel house) Hot at all times I/p fuse block (lower left kick panel) Left power seat forward/ rearward motor Left power seat front tilt motor Left power seat rear tilt motor Left power seat switch Left seat adjuster motor assembly Power accy circuit breaker 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 Right power seat switch Right seat adjuster motor assembly S201 S221 S228 S300 S303 Tan
POWER WINDOWS Power Window Wiring Diagram for Chevrolet Chevy Van G1997 3500 List of elements for Power Window Wiring Diagram for Chevrolet Chevy Van G1997 3500: 19 (left kick panel) C210 Convenience center G200 G200 (left kick panel) Hot in run I/p fuse block Interior lights system Left front power side window switch Left front switch Left front window motor Pwr wdo circuit breaker 25a Right front power side window switch Right front switch Right front window motor S229 S500 S601 Tan
RADIO Radio Wiring Diagrams for Chevrolet Chevy Van G1997 3500 List of elements for Radio Wiring Diagrams for Chevrolet Chevy Van G1997 3500: 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 Van G1997 3500 List of elements for Shift Interlock Wiring Diagram for Chevrolet Chevy Van G1997 3500: 11 A/t shift lock solenoid (right side of steering column) G200 (behind left kick panel) Hot in run and start I/p fuse block Park/neutral position switch (left side of transmission) c1 Pnk S201 S217 Tcc/stoplamp switch (on brake pedal support) Turn b/u fuse 16 20a Turn signal switch
STARTING/CHARGING
4.3L 4.3L (VIN W), Charging Wiring Diagram for Chevrolet Chevy Van G1997 3500 List of elements for 4.3L (VIN W), Charging Wiring Diagram for Chevrolet Chevy Van G1997 3500: 26 (100a) (124a) (left side of engine compt) (not used) (right front of engine compt) B16 B17 Battery Battery junction block (next to radiator) Battery lamp Fusible link (10 ga-rust) G100 G101 Gauges fuse 4 10a Generator (w/ambulance package) Hot at all times Hot in run or start I/p fuse block Instrument cluster L generator Pnk Power distribution system Red S158 (w/ambulance pkg) (engine harness, 4 cm from breakout to a/c compressor) S216 Starting circuit Stud 4.3L (VIN W), Starting Wiring Diagram for Chevrolet Chevy Van G1997 3500 List of elements for 4.3L (VIN W), Starting Wiring Diagram for Chevrolet Chevy Van G1997 3500: 31 (5.0l, 5.7l, 7.4l-left front of engine, 4.3l-right front of engine) (left side of eng. compt.) (left side of trans.) park/neutral position switch (right front of eng. compt.) Accy Battery Battery stud Bulb test Charging circuit Crank fuse 8 10a Fusible link (10 ga- rust) Fusible link (10 ga-rust) G100 G101 G110 (5.0l, 5.7l, 7.4l) g119 (4.3l) Hold- in coil I/p fuse block (lower left kick panel) Ign a maxifuse 40a Ignition switch Lock Off Pull- in coil Red Run S103 S125 Start Starter motor Starter relay (in underhood fuse-relay center) Starter solenoid Underhood fuse-relay center
5.0L 5.0L (VIN M), Charging Wiring Diagram for Chevrolet Chevy Van G1997 3500 List of elements for 5.0L (VIN M), Charging Wiring Diagram for Chevrolet Chevy Van G1997 3500: 26 (100a) (124a) (left side of engine compt) (not used) (right front of engine compt) B16 B17 Battery Battery junction block (next to radiator) Battery lamp Fusible link (10 ga-rust) G100 G101 Gauges fuse 4 10a Generator (w/ambulance package) Hot at all times Hot in run or start I/p fuse block Instrument cluster L generator Pnk Power distribution system Red S158 (w/ambulance pkg) (engine harness, 4 cm from breakout to a/c compressor) S216 Starting circuit Stud 5.0L (VIN M), Starting Wiring Diagram for Chevrolet Chevy Van G1997 3500 List of elements for 5.0L (VIN M), Starting Wiring Diagram for Chevrolet Chevy Van G1997 3500: 31 (5.0l, 5.7l, 7.4l-left front of engine, 4.3l-right front of engine) (left side of eng. compt.) (left side of trans.) park/neutral position switch (right front of eng. compt.) Accy Battery Battery stud Bulb test Charging circuit Crank fuse 8 10a Fusible link (10 ga- rust) Fusible link (10 ga-rust) G100 G101 G110 (5.0l, 5.7l, 7.4l) g119 (4.3l) Hold- in coil I/p fuse block (lower left kick panel) Ign a maxifuse 40a Ignition switch Lock Off Pull- in coil Red Run S103 S125 Start Starter motor Starter relay (in underhood fuse-relay center) Starter solenoid Underhood fuse-relay center
5.7L 5.7L (VIN R), Charging Wiring Diagram for Chevrolet Chevy Van G1997 3500 List of elements for 5.7L (VIN R), Charging Wiring Diagram for Chevrolet Chevy Van G1997 3500: 26 (100a) (124a) (left side of engine compt) (not used) (right front of engine compt) B16 B17 Battery Battery junction block (next to radiator) Battery lamp Fusible link (10 ga-rust) G100 G101 Gauges fuse 4 10a Generator (w/ambulance package) Hot at all times Hot in run or start I/p fuse block Instrument cluster L generator Pnk Power distribution system Red S158 (w/ambulance pkg) (engine harness, 4 cm from breakout to a/c compressor) S216 Starting circuit Stud 5.7L (VIN R), Starting Wiring Diagram for Chevrolet Chevy Van G1997 3500 List of elements for 5.7L (VIN R), Starting Wiring Diagram for Chevrolet Chevy Van G1997 3500: 31 (5.0l, 5.7l, 7.4l-left front of engine, 4.3l-right front of engine) (left side of eng. compt.) (left side of trans.) park/neutral position switch (right front of eng. compt.) Accy Battery Battery stud Bulb test Charging circuit Crank fuse 8 10a Fusible link (10 ga- rust) Fusible link (10 ga-rust) G100 G101 G110 (5.0l, 5.7l, 7.4l) g119 (4.3l) Hold- in coil I/p fuse block (lower left kick panel) Ign a maxifuse 40a Ignition switch Lock Off Pull- in coil Red Run S103 S125 Start Starter motor Starter relay (in underhood fuse-relay center) Starter solenoid Underhood fuse-relay center
SUPPLEMENTAL RESTRAINTS Supplemental Restraint Wiring Diagram for Chevrolet Chevy Van G1997 3500 List of elements for Supplemental Restraint Wiring Diagram for Chevrolet Chevy Van G1997 3500: 43 (left i/p) data link connector A nca A16 Air bag indicator Air bags fuse 10 15a B17 Bar Data line Driver side high Driver side low G200 (behind left kick panel) G200 (left kick panel) Gauges fuse 4 10a Hot in run or start I/p fuse block Ign 1 Indicator ctrl Inflatable restraint control module (below left front seat) Inflatable restraint diagnostic resistor Inflatable restraint front end discriminating sensor (front of vehicle) Inflatable restraint i/p module Inflatable restraint steering wheel module Inflatable restraint steering wheel module coil Instrument cluster Lf seat belt input Multi-function alarm module (under left side of dash) Nca Pass side high Pass side low Pnk S201 (i/p harn, near park brake sw) S208 (i/p harn, in breakout to airbag module) S209 (i/p harn, in breakout to airbag module) S216 (i/p harn, near breakout to instr cluster) Seat belt sig Seat belt switch (in driver's belt buckle) Shorting Shorting bar Sir fwd sens Sir ground Tan W/ pass sir W/o pass sir
TRANSMISSION
4.3L 4.3L (VIN W), Transmission Wiring Diagram, 4L60-E/4L80-E for Chevrolet Chevy Van G1997 3500 List of elements for 4.3L (VIN W), Transmission Wiring Diagram, 4L60-E/4L80-E for Chevrolet Chevy Van G1997 3500: 91 (4l60-e only) (4l60-e) s (4l80-e) (4l80-e) u (5.0l/ 5.7l/ 7.4l only) (5.0l/5.7l only) (5.0l/5.7l/7.4l) s157 (eng harn, 15 cm from fuel inj breakout) (engine harn, 15 cm from egr sensor breakout) (twisted wire pair) 1-2 shift sol 1-2 shift solenoid 2-3 shift sol 2-3 shift solenoid 3-2 ctrl solenoid 3-2 downshift sol 5v reference A/t iss hi A/t iss lo Automatic transmission (4l60-e/4l80-e) Automatic transmission input shaft speed sensor (w/ 4l80-e) (left side of transmission) B17 Battery in Brake fuse 18 10a Brake switch input Data class ii Data link connector (partial) (under left side of dash) Ecm-1 fuse 20a Ecm-b fuse 20a Ect sens input Electronic brake control module Engine controls system Engine coolant temperature sensor (top front of engine) Fuel injectors & ignition coil) Fuel injectors (5.0l/5.7l) Fuel pump relay & fuel pump switch Fuel sender buffer module, power steering control module, remote control door lock receiver & headlamp swich G119/g117 (all gasoline) (right front of engine-4.3l) (right rear of engine- 5.0l/5.7l/7.4l) G125 (5.0l/5.7l/7.4l) (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 Ignition in Instrument cluster Malfunction indicator lamp Mil control Pcm ground Pcs sol hi out Pcs sol lo out Pnk Press ctrl Range signal "a" Range signal "b" Range signal "c" Red S102 S120 S122 S132 S133 S136 S139 (engine harness, 4 cm from ect sensor breakout) S153 (eng harn, right front of eng, 4 cm from g119 breakout-4.3l) (eng harn, 17 cm from fuel injector breakout-5.0l/5.7l/7.4l) S154 (eng harn, 20 cm from fuel injector breakout-4.3l/5.0l/5.7l) (eng harn, 27 cm from maf sensor breakout-7.4l) S210 S216 Sensor ground Sensor return Solenoid Switch assembly Tan Tcc pwm sol Tcc pwm solenoid Tcc sol Tcc solenoid Tcc/abs/ cruise switch Tcc/stop lamp switch (on brake pedal support) Throttle position sensor (left top of engine) (4.3l/5.0l/5.7l) (right top of engine) (7.4l) Tp sens input Trans fluid temp sensor Trans fuse 20 10a Trans range pressure Trans temp sig in Underhood fuse/relay center Vehicle control module (left side of engine compt) Vehicle speed sensor (left side of transmission) Vss hi Vss lo
5.0L 5.0L (VIN M), Transmission Wiring Diagram, 4L60-E/4L80-E for Chevrolet Chevy Van G1997 3500 List of elements for 5.0L (VIN M), Transmission Wiring Diagram, 4L60-E/4L80-E for Chevrolet Chevy Van G1997 3500: 91 (4l60-e only) (4l60-e) s (4l80-e) (4l80-e) u (5.0l/ 5.7l/ 7.4l only) (5.0l/5.7l only) (5.0l/5.7l/7.4l) s157 (eng harn, 15 cm from fuel inj breakout) (engine harn, 15 cm from egr sensor breakout) (twisted wire pair) 1-2 shift sol 1-2 shift solenoid 2-3 shift sol 2-3 shift solenoid 3-2 ctrl solenoid 3-2 downshift sol 5v reference A/t iss hi A/t iss lo Automatic transmission (4l60-e/4l80-e) Automatic transmission input shaft speed sensor (w/ 4l80-e) (left side of transmission) B17 Battery in Brake fuse 18 10a Brake switch input Data class ii Data link connector (partial) (under left side of dash) Ecm-1 fuse 20a Ecm-b fuse 20a Ect sens input Electronic brake control module Engine controls system Engine coolant temperature sensor (top front of engine) Fuel injectors & ignition coil) Fuel injectors (5.0l/5.7l) Fuel pump relay & fuel pump switch Fuel sender buffer module, power steering control module, remote control door lock receiver & headlamp swich G119/g117 (all gasoline) (right front of engine-4.3l) (right rear of engine- 5.0l/5.7l/7.4l) G125 (5.0l/5.7l/7.4l) (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 Ignition in Instrument cluster Malfunction indicator lamp Mil control Pcm ground Pcs sol hi out Pcs sol lo out Pnk Press ctrl Range signal "a" Range signal "b" Range signal "c" Red S102 S120 S122 S132 S133 S136 S139 (engine harness, 4 cm from ect sensor breakout) S153 (eng harn, right front of eng, 4 cm from g119 breakout-4.3l) (eng harn, 17 cm from fuel injector breakout-5.0l/5.7l/7.4l) S154 (eng harn, 20 cm from fuel injector breakout-4.3l/5.0l/5.7l) (eng harn, 27 cm from maf sensor breakout-7.4l) S210 S216 Sensor ground Sensor return Solenoid Switch assembly Tan Tcc pwm sol Tcc pwm solenoid Tcc sol Tcc solenoid Tcc/abs/ cruise switch Tcc/stop lamp switch (on brake pedal support) Throttle position sensor (left top of engine) (4.3l/5.0l/5.7l) (right top of engine) (7.4l) Tp sens input Trans fluid temp sensor Trans fuse 20 10a Trans range pressure Trans temp sig in Underhood fuse/relay center Vehicle control module (left side of engine compt) Vehicle speed sensor (left side of transmission) Vss hi Vss lo
5.7L 5.7L (VIN R), Transmission Wiring Diagram, 4L60-E/4L80-E for Chevrolet Chevy Van G1997 3500 List of elements for 5.7L (VIN R), Transmission Wiring Diagram, 4L60-E/4L80-E for Chevrolet Chevy Van G1997 3500: 91 (4l60-e only) (4l60-e) s (4l80-e) (4l80-e) u (5.0l/ 5.7l/ 7.4l only) (5.0l/5.7l only) (5.0l/5.7l/7.4l) s157 (eng harn, 15 cm from fuel inj breakout) (engine harn, 15 cm from egr sensor breakout) (twisted wire pair) 1-2 shift sol 1-2 shift solenoid 2-3 shift sol 2-3 shift solenoid 3-2 ctrl solenoid 3-2 downshift sol 5v reference A/t iss hi A/t iss lo Automatic transmission (4l60-e/4l80-e) Automatic transmission input shaft speed sensor (w/ 4l80-e) (left side of transmission) B17 Battery in Brake fuse 18 10a Brake switch input Data class ii Data link connector (partial) (under left side of dash) Ecm-1 fuse 20a Ecm-b fuse 20a Ect sens input Electronic brake control module Engine controls system Engine coolant temperature sensor (top front of engine) Fuel injectors & ignition coil) Fuel injectors (5.0l/5.7l) Fuel pump relay & fuel pump switch Fuel sender buffer module, power steering control module, remote control door lock receiver & headlamp swich G119/g117 (all gasoline) (right front of engine-4.3l) (right rear of engine- 5.0l/5.7l/7.4l) G125 (5.0l/5.7l/7.4l) (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 Ignition in Instrument cluster Malfunction indicator lamp Mil control Pcm ground Pcs sol hi out Pcs sol lo out Pnk Press ctrl Range signal "a" Range signal "b" Range signal "c" Red S102 S120 S122 S132 S133 S136 S139 (engine harness, 4 cm from ect sensor breakout) S153 (eng harn, right front of eng, 4 cm from g119 breakout-4.3l) (eng harn, 17 cm from fuel injector breakout-5.0l/5.7l/7.4l) S154 (eng harn, 20 cm from fuel injector breakout-4.3l/5.0l/5.7l) (eng harn, 27 cm from maf sensor breakout-7.4l) S210 S216 Sensor ground Sensor return Solenoid Switch assembly Tan Tcc pwm sol Tcc pwm solenoid Tcc sol Tcc solenoid Tcc/abs/ cruise switch Tcc/stop lamp switch (on brake pedal support) Throttle position sensor (left top of engine) (4.3l/5.0l/5.7l) (right top of engine) (7.4l) Tp sens input Trans fluid temp sensor Trans fuse 20 10a Trans range pressure Trans temp sig in Underhood fuse/relay center Vehicle control module (left side of engine compt) Vehicle speed sensor (left side of transmission) Vss hi Vss lo
WARNING SYSTEMS Warning System Wiring Diagrams for Chevrolet Chevy Van G1997 3500 List of elements for Warning System Wiring Diagrams for Chevrolet Chevy Van G1997 3500: 41 (i/p harn, 39 cm into inflatable restraint sensing and diagnostic module breakout) (left kick panel) A12 Base models Battery in C200 C210 Convenience center (under left side of i/p) Fasten belts out G200 G200 (left kick panel) G203 (right kick panel) Gages 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 Ign on in Illum fuse 14 10a Instrument cluster Key-in sw in Key-in warning switch (inside steering column assembly) Left front door jamb switch Lights on in Multi-function alarm module (in convenience center) Nca Pnk S201 S202 S206 S209 S216 S222 S223 Safety belt in Safety belt lamp Seat belt switch (seat belt buckle assy) Tan Upfitter package
WIPER/WASHER Wiper/Washer Wiring Diagram for Chevrolet Chevy Van G1997 3500 List of elements for Wiper/Washer Wiring Diagram for Chevrolet Chevy Van G1997 3500: 21 G200 (behind left kick panel) Hot in acc or run I/p fuse block (lower left kick panel) Inst wipe Inst wipe k Low Mist Mist off Off Pulse Red S134 S201 Solid state Wash Washer switch Windshield washer pump motor (left front of engine compt, at washer reservoir) Windshield washer/ wiper switch Windshield wiper motor (on left side of firewall) Wiper fuse 11 25a Wiper switch
