Diagram sections — 29 (96 total)
AIR CONDITIONING ANTI-LOCK BRAKES ANTI-THEFT BODY COMPUTER COMPUTER DATA LINES CRUISE CONTROL DEFOGGERS ELECTRONIC POWER STEERING ELECTRONIC SUSPENSION ENGINE PERFORMANCE EXTERIOR LIGHTS GROUND DISTRIBUTION HEADLIGHTS HORN INSTRUMENT CLUSTER INTERIOR LIGHTS MEMORY SYSTEMS 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 Compressor Wiring Diagram for Chevrolet Silverado 2002 1500 List of elements for Compressor Wiring Diagram for Chevrolet Silverado 2002 1500: 22 (diesel) (gasoline) (right side of accumulator) A/c compressor clutch A/c compressor clutch relay A/c fuse 10a A/c high pressure recirculation switch (in a/c muffler hose) A/c high pressure switch (rear of compressor) A/c request A/c switch G100 (on left radiator support bracket) G102 (silverado/sierra) g105 (others) (4.3l: right front of engine, 4.8l, 5.3l, 6.0l, 8.1l: left side of engine, 6.6l: right side of engine) Hot at all times Hot in run or start Hvac control module (behind center of dash) Ign e fuse 10a Powertrain control module (pcm) (left front of engine compt) Press switch a/c high Relay ctrl a/c comp S101 (forward lamp harn) S102 (gasoline) s120 (diesel) (engine harn) Underhood fuse block (left side of engine compt, near battery) Heater Wiring Diagram for Chevrolet Silverado 2002 1500 List of elements for Heater Wiring Diagram for Chevrolet Silverado 2002 1500: 15 Blower motor Blower motor relay Blower motor resistor assembly (on hvac module, near blower motor) Blower motor switch D12 Frt hvac fuse 30a G200 (right side of dash, at "a" pillar) Hot at all times Hot in run Htr-a/c fuse 25a Interior lights system Left i/p fuse block (lower left side of dash) Off Tan Underhood fuse block (left side of engine compt, near battery) Manual A/C Wiring Diagram, Base for Chevrolet Silverado 2002 1500 List of elements for Manual A/C Wiring Diagram, Base for Chevrolet Silverado 2002 1500: 57 (diesel) (gasoline) A off mtr ctrl A/c comp relay ctrl A/c compressor clutch A/c compressor clutch relay A/c fuse 10a A/c high pressure recirculation switch (in a/c muffler hose) A/c high pressure switch (rear of compressor) A/c low pressure switch (right side of accumulator) A/c request A/c switch Air temperature actuator (bottom center of hvac control assembly) B mode act ctrl Blower motor (under right side of dash) Blower motor relay assembly (on hvac module, near blower motor) Blower relay Body relay block (under left side of dash) C ground Ctrl recirc door D recir act ctrl D12 Defogger system E i/p lamp sply F temp act ctrl Frt hvac fuse 30a G act pos sig G100 (on left radiator support bracket) G102 (4.3l: right front of engine, 4.8l, 5.3l, 6.0l: left side of engine, 8.1l: left side of engine, 6.6l right side of engine) G200 (right side of dash, at "a" pillar) G203 (on upper left dash at "a" pillar) H 5v ref High Hot at all times Hot in run Hot in run or start Htr-a/c fuse 25a Hvac 1 fuse 10a Hvac control module (behind center of dash) Ign e fuse 10a Interior lights system J rear defog rly K ign 3 vol L a/c request Left i/p fuse block (lower left side of dash) Low M act pos sig Mode actuator (left side of hvac module) Off Powertrain control module (pcm) (left front of engine of engine compt) Press sw a/c high Recirculation actuator (top of hvac module) Red S101 (forward lamp harness) Sp203 Tan Underhood fuse block (left side of engine compt, near battery) Manual A/C Wiring Diagram, Up Level for Chevrolet Silverado 2002 1500 List of elements for Manual A/C Wiring Diagram, Up Level for Chevrolet Silverado 2002 1500: 53 (diesel) (gasoline) A off mtr ctrl A/c compressor clutch A/c compressor clutch relay A/c fuse 10a A/c high press sw A/c high pressure recirculating switch (in a/c muffler hose) A/c high pressure switch (rear of compressor) A/c low pressure switch (right side of accumulator) A/c request A/c switch Air temperature actuator (bottom center of hvac module) B mode act ctrl Blower motor (under right side of dash) Blower motor resistor assembly (on hvac module, near blower motor) Blower relay C ground D recir act ctrl D12 Defogger system E i/p lamp sply F temp act ctrl Frt hvac fuse 30a G act pos sig G100 (on left radiator support bracket) G102 (silverado/sierra) g105 (others) (4.3l: right front of engine, 4.8l, 5.3l, 6.0l, 8.1l: left side of engine, 6.6l: right side of engine) G200 (right side dash, at "a" pillar) H 5v ref Hot at all times Hot in run Hot in run or start Htr-a/c fuse 25a Hvac 1 fuse 10a Hvac control module (behind center of dash) Ign e fuse 10a Interior lights system J rear defog rly K ign 3 vol L a/c request Left i/p fuse block (lower left side of dash) M act pos sig Mode actuator (left side of hvac module) Off Powertrain control module (pcm) (left front of engine compt) Recirc door ctrl Recirculation actuator (top of hvac module) Red Relay ctrl a/c comp Right i/p fuse block (lower right side of dash) S101 (forward lamp harness) Tan Underhood fuse block (left side of engine compt, near battery)
ANTI-LOCK BRAKES Anti-lock Brake Wiring Diagrams, with Traction Control for Chevrolet Silverado 2002 1500 List of elements for Anti-lock Brake Wiring Diagrams, with Traction Control for Chevrolet Silverado 2002 1500: 68 A4 c1 Abs fuse 60a Abs ind Body relay block (under left side of dash, near kick panel) Brake fluid level sw in Brake fluid level switch (on left side of brake fluid reservoir) Brake fuse 10a Brake in Brake ind Brake input C2 f7 C8 a Data link connector (dlc) (below steering column) Del torque Delivered torque Diesel Electronic brake control module (ebcm) (on left side of inner frame) G104 (left rear of engine block) G106 (right front of engine) G110 (left front body mount) G203 (upper left side of dash, at "a" pillar) Gas Ground Ground distribution system Hot at all times Hot in run Hot in run or start Ign 1 fuse 10a Ignition Illum lamp Instrument cluster Interior lights system Left front sensor (+) Left front sensor (-) Left front wheel speed sensor Left i/p fuse block (on lower left side of dash) Logic Low traction indicator Motor & solenoid pwr Nca Pnk Power distribution system Powertrain control module (pcm) (on left front of engine compt) Red Req torque Requested torque Right front sensor (+) Right front sensor (-) Right front wheel speed sensor S102 S120 Serial data Service trac cntl sig Sp203 Splice pack sp203 (on top left side of dash, near "a" pillar) Stoplamp switch (on top of brake pedal bracket) Tan Trac cntl active sig Trac sw input Traction control switch Traction off indicator Underhood fuse block (at left side of engine compt, near battery) Vehicle speed sensor (vss) (4wd: on top left side of transfer case) (2wd: on left rear side of transmission) Vehicle speed sensor adapter (4wd only) (on left side of trans) Vss high Vss input Vss low Vss out Anti-lock Brake Wiring Diagrams, without Traction Control for Chevrolet Silverado 2002 1500 List of elements for Anti-lock Brake Wiring Diagrams, without Traction Control for Chevrolet Silverado 2002 1500: 60 A4 c1 Abs fuse 60a Abs ind Body relay block (under left side of dash, near kick panel) Brake fluid level sw in Brake fluid level switch (on left side of brake fluid reservoir) Brake fuse 10a Brake ind Brake input C8 a Clutch start switch (top of clutch clutch assy) Cpp sw sig Data link connector (dlc) (below steering column) Diesel Electronic brake control module (ebcm) (on left side of inner frame) Engine controls system F6 c3 F7 c2 Front axle act/sw input Front axle actuator/ switch (on axle housing) G104 (left rear of engine block) G106 (right front of engine) G110 (left front body mount) Gas Ground Hot at all times Hot in run Hot in run or start Ign 1 fuse 10a Ignition Instrument cluster Left front sensor (+) Left front sensor (-) Left front wheel speed sensor Left i/p fuse block (on lower left side of dash) Logic M/t only Motor & solenoid pwr Nca Pnk Powertrain control module (pcm) (on left front of engine compt) Red Right front sensor (+) Right front sensor (-) Right front wheel speed sensor S102 S120 Serial data Splice pack sp205 (on left side of dash, behind headlamp switch) Stopla,mp switch (on top of brake pedal bracket) Tan Transfer case shift control module (left side of dash, behind headlamp switch) Transmissions system Underhood fuse block (at left side of engine compt, near battery) Vehicle speed sensor (vss) (4wd: on top left side of transfer case) (2wd: on left rear side of transmission) Vehicle speed sensor adapter (4wd only) (on left side of trans) Vss high Vss input Vss low Vss output
ANTI-THEFT Forced Entry Wiring Diagram for Chevrolet Silverado 2002 1500 List of elements for Forced Entry Wiring Diagram for Chevrolet Silverado 2002 1500: 28 (left side of dash, below steering column) (not used) A11 All times Body control module Door unlock Driver mini-wedge door jamb switch Driver window/door lock switch Ex lights ctrl Exterior lights system F10 Front passenger mini-wedge door jamb switch Front passenger window/door lock switch G200 (upper right kick panel) G203 (upper left kick panel) Ground Headlights ctrl Headlights system Horn rly ctrl Horns system Hot at Remote keyless entry system Right i/p fuse block Right i/p fuse block (lower right side of dash) Sp203 Splice pack sp203 Tbc fuse 10a Underhood fuse block Passlock Wiring Diagram for Chevrolet Silverado 2002 1500 List of elements for Passlock Wiring Diagram for Chevrolet Silverado 2002 1500: 32 A12 Battery Body control module (lower left side of dash below steering column) Body relay block (under left side of dash) Connector (below steering column) Cruise fuse 10a Data Data link F10 G203 (upper left kick panel) Grd Hot at all times Hot in run Hot in run or start I/p left fuse block Ign 1 fuse 10a Ign pwr Key Lock cylinder Magnet Passlock sensor (internal to steering column) Pnk Powertrain control module (on left front of engine compt) Security sensor Sensor data Sensor pwr Sensor ret Sp203 Splice pack sp205 (upper left kick panel) Tamper sensor Tbc fuse 10a Underhood fuse block
BODY COMPUTER Body Computer Wiring Diagrams for Chevrolet Silverado 2002 1500 List of elements for Body Computer Wiring Diagrams for Chevrolet Silverado 2002 1500: 81 12v ref 5v ref A10 A11 A12 Ambient light sen sig Ambient light sensor (top center of dash) Anti-theft system B10 B11 B12 Battery Body control module (on lower left side of dash, below steering column) Body relay block (near left kick panel) Body relay block (under left side of dash) Cargo lp sw input Class 2 data Computer data lines system Courtesy lamp pwr Cruise fuse 10a Ctsy lp rly ctrl Door latch sw sig Door lock ctrl Door locks system Door unlock ctrl Driver door key sw sig Drl rly coil Engine controls system Exterior courtesy lps rly ctrl Exterior lights system F10 Flash to pass sw sig Fog lp rly ctrl Front fog lp sw G203 (upper left kick panel) Ground Headlamp sw input Headlights system High beam input Horn rly ctrl Horns system Hot at all times Hot in run Hot in run & start Ign 1 Ign 1 fuse 10a Ign 3 Ignition key alarm switch Inadvertent pwr rly ctrl Inst panel lp pwr Int lp defeat sw sig Interior lamp ctrl Interior lights system Interior park lp pwr Key in ign sw sig Led dim sig Left i/p fuse block Lf dr open sw sig Lt ft dr unlk rly ctrl Lt seat belt sw Lt turn sig lamp pwr Nca Park brake switch Pk lp rly ctrl Pnk Power distribution system Power distribution system (rap) Prk bk sw sig Rap relay ctrl Rt turn sig lamp pwr Security system sen sig Sensor low ref Serial data Sp203 Tan Tbc fuse 10a Tow/haul sw sig Tow/haul switch Underhood junction block Vss Warning system
COMPUTER DATA LINES Computer Data Lines for Chevrolet Silverado 2002 1500 List of elements for Computer Data Lines for Chevrolet Silverado 2002 1500: 30 (diesel) (gas) (not used) (under driver's seat) inflatable restraint sensing & diagnostic module A12 Body control module (on lower left side of dash, below steering column) Body relay block (under left side of dash, Body relay block (under left side of dash, near kick panel) C11 Cigar fuse 15a Data link connector (dlc) (under left side of dash, below steering column) Driver information center (dic) Electronic brake control module (ebcm) (on left side of inner frame) G103 (right rear of engine) G105 (left front eng block) G203 (upper left kick panel) Hot at all times Hvac control module (behind center of dash) Instrument panel cluster (ipc) Memory seat module (undersode of driver seat) Near kick panel) Powertrain control module (pcm) (on left front of engine compt) Rear wheel steering control module (at left rear of vehicle, near spare tire bracket) Sp205 (left side of dash) Splice pack sp203 Transfer case shift control module (behind headlamp switch) Transmission control module (at left front of eng compt) Underhood fuse block (at left side of eng compt, c2 near battery) Underhood fuse block (at left side of engine compt, near battery) Vehicle interface unit (behind right side of dash)
CRUISE CONTROL
4.3L 4.3L VIN W, Cruise Control Wiring Diagram, with Electronic Throttle System for Chevrolet Silverado 2002 1500 List of elements for 4.3L VIN W, Cruise Control Wiring Diagram, with Electronic Throttle System for Chevrolet Silverado 2002 1500: 51 5v ref A10 A12 A13 A14 A15 Acceleration pedal position sensor (behind accelerator pedal) App sensor 1 sig App sensor 2 sig App sensor 3 sig Cruise control on/off switch Cruise fuse 10a Cruise on sw sig D11 Etc fuse 15a Exterior lights system F12 G103 (left rear of engine) Ground Hot at all times Hot in run Hot in run & start Ign volt Left i/p fuse block (on lower left side of dash) Low ref Nca Off Pnk Powertrain control module (left front of engine compt) Resume/accel Resume/accel sig S103 Serial data Set/coast Set/coast sig Stop lps fuse 20a Stoplamp switch (top of brake pedal) Tac motor cntrl 1 Tac motor cntrl 2 Tan Throttle actuator control module (right rear of engine compt, near underhood fuse block) Throttle actuator control motor (on throttle body) Throttle position sensor (on throttle body assembly) Tp sensor 1 sig Tp sensor 2 sig Underhood fuse block (near battery) Veh stop fuse 10a Vehicle speed sensor (vss) (2wd: left side of transmission) (4wd: left side of transfer case) Vehicle speed sensor adapter (4wd) (on left side of transmission) Vss high Vss low 4.3L VIN W, Cruise Control Wiring Diagram, without Electronic Throttle System for Chevrolet Silverado 2002 1500 List of elements for 4.3L VIN W, Cruise Control Wiring Diagram, without Electronic Throttle System for Chevrolet Silverado 2002 1500: 48 (a/t) (m/t) A/t A12 A13 A14 A15 Body relay block (under left side of dash) Brake fuse 10a Clutch start switch (top of clutch pedal) Clutch sw input Cruise control module (left rear of engine compt, on firewall) Cruise control on/off switch Cruise engage in Cruise engage out Cruise fuse 10a Cruise on input D11 Exterior lights system F11 F12 G103 (left rear of engine) Ground Hot at all times Hot in run Ignition Instrument cluster system Left i/p fuse block (on lower left side of dash) M/t Nca Off Powertrain control module (left front of engine compt) Resume/accel Resume/accel sig Set/coast Set/coast sig Sound systems Speed sensor input Speed sensor out Stop lps fuse 20a Stoplamp sw input Stoplamp switch (top of brake pedal) Underhood fuse block (near battery) Veh stop fuse 10a Vehicle speed sensor (vss) (2wd: left side of transmission) (4wd: left side of transfer case) Vehicle speed sensor adapter (4wd) (on left side of transmission) Vss high Vss low
4.8L 4.8L VIN V, Cruise Control Wiring Diagram, with Electronic Throttle System for Chevrolet Silverado 2002 1500 List of elements for 4.8L VIN V, Cruise Control Wiring Diagram, with Electronic Throttle System for Chevrolet Silverado 2002 1500: 51 5v ref A10 A12 A13 A14 A15 Acceleration pedal position sensor (behind accelerator pedal) App sensor 1 sig App sensor 2 sig App sensor 3 sig Cruise control on/off switch Cruise fuse 10a Cruise on sw sig D11 Etc fuse 15a Exterior lights system F12 G103 (left rear of engine) Ground Hot at all times Hot in run Hot in run & start Ign volt Left i/p fuse block (on lower left side of dash) Low ref Nca Off Pnk Powertrain control module (left front of engine compt) Resume/accel Resume/accel sig S103 Serial data Set/coast Set/coast sig Stop lps fuse 20a Stoplamp switch (top of brake pedal) Tac motor cntrl 1 Tac motor cntrl 2 Tan Throttle actuator control module (right rear of engine compt, near underhood fuse block) Throttle actuator control motor (on throttle body) Throttle position sensor (on throttle body assembly) Tp sensor 1 sig Tp sensor 2 sig Underhood fuse block (near battery) Veh stop fuse 10a Vehicle speed sensor (vss) (2wd: left side of transmission) (4wd: left side of transfer case) Vehicle speed sensor adapter (4wd) (on left side of transmission) Vss high Vss low 4.8L VIN V, Cruise Control Wiring Diagram, without Electronic Throttle System for Chevrolet Silverado 2002 1500 List of elements for 4.8L VIN V, Cruise Control Wiring Diagram, without Electronic Throttle System for Chevrolet Silverado 2002 1500: 48 (a/t) (m/t) A/t A12 A13 A14 A15 Body relay block (under left side of dash) Brake fuse 10a Clutch start switch (top of clutch pedal) Clutch sw input Cruise control module (left rear of engine compt, on firewall) Cruise control on/off switch Cruise engage in Cruise engage out Cruise fuse 10a Cruise on input D11 Exterior lights system F11 F12 G103 (left rear of engine) Ground Hot at all times Hot in run Ignition Instrument cluster system Left i/p fuse block (on lower left side of dash) M/t Nca Off Powertrain control module (left front of engine compt) Resume/accel Resume/accel sig Set/coast Set/coast sig Sound systems Speed sensor input Speed sensor out Stop lps fuse 20a Stoplamp sw input Stoplamp switch (top of brake pedal) Underhood fuse block (near battery) Veh stop fuse 10a Vehicle speed sensor (vss) (2wd: left side of transmission) (4wd: left side of transfer case) Vehicle speed sensor adapter (4wd) (on left side of transmission) Vss high Vss low
5.3L 5.3L VIN T, Cruise Control Wiring Diagram, with Electronic Throttle System for Chevrolet Silverado 2002 1500 List of elements for 5.3L VIN T, Cruise Control Wiring Diagram, with Electronic Throttle System for Chevrolet Silverado 2002 1500: 51 5v ref A10 A12 A13 A14 A15 Acceleration pedal position sensor (behind accelerator pedal) App sensor 1 sig App sensor 2 sig App sensor 3 sig Cruise control on/off switch Cruise fuse 10a Cruise on sw sig D11 Etc fuse 15a Exterior lights system F12 G103 (left rear of engine) Ground Hot at all times Hot in run Hot in run & start Ign volt Left i/p fuse block (on lower left side of dash) Low ref Nca Off Pnk Powertrain control module (left front of engine compt) Resume/accel Resume/accel sig S103 Serial data Set/coast Set/coast sig Stop lps fuse 20a Stoplamp switch (top of brake pedal) Tac motor cntrl 1 Tac motor cntrl 2 Tan Throttle actuator control module (right rear of engine compt, near underhood fuse block) Throttle actuator control motor (on throttle body) Throttle position sensor (on throttle body assembly) Tp sensor 1 sig Tp sensor 2 sig Underhood fuse block (near battery) Veh stop fuse 10a Vehicle speed sensor (vss) (2wd: left side of transmission) (4wd: left side of transfer case) Vehicle speed sensor adapter (4wd) (on left side of transmission) Vss high Vss low 5.3L VIN T, Cruise Control Wiring Diagram, without Electronic Throttle System for Chevrolet Silverado 2002 1500 List of elements for 5.3L VIN T, Cruise Control Wiring Diagram, without Electronic Throttle System for Chevrolet Silverado 2002 1500: 48 (a/t) (m/t) A/t A12 A13 A14 A15 Body relay block (under left side of dash) Brake fuse 10a Clutch start switch (top of clutch pedal) Clutch sw input Cruise control module (left rear of engine compt, on firewall) Cruise control on/off switch Cruise engage in Cruise engage out Cruise fuse 10a Cruise on input D11 Exterior lights system F11 F12 G103 (left rear of engine) Ground Hot at all times Hot in run Ignition Instrument cluster system Left i/p fuse block (on lower left side of dash) M/t Nca Off Powertrain control module (left front of engine compt) Resume/accel Resume/accel sig Set/coast Set/coast sig Sound systems Speed sensor input Speed sensor out Stop lps fuse 20a Stoplamp sw input Stoplamp switch (top of brake pedal) Underhood fuse block (near battery) Veh stop fuse 10a Vehicle speed sensor (vss) (2wd: left side of transmission) (4wd: left side of transfer case) Vehicle speed sensor adapter (4wd) (on left side of transmission) Vss high Vss low
DEFOGGERS Heated Mirrors Wiring Diagram for Chevrolet Silverado 2002 1500 List of elements for Heated Mirrors Wiring Diagram for Chevrolet Silverado 2002 1500: 46 (auto a/c) (auto a/c) (man a/c) (man a/c) A9 f3 Body relay bock (left side of dash) C c1 C c7 C1 c1 C10 C6 k c1 D9 c1 Defog request Defogger switch/ timer Driver outside rearview mirror Driver window/ door lock switch Except crew cab F c5 F3 c1 G200 (right "a" pillar) G200 (upper right kick panel) G203 (left "a" pillar) G203 (upper left kick panel) Ground Ground distribution system Hot at all times Hot in run Hot in run & start Htd mir fuse 10a Hvac 1 fuse 10a Hvac control module (in center of dash, under radio) Ign 3 Ign e fuse 10a Ind Left i/p fuse block (left side of dash) M c1 Nca Passenger outside rearview mirror Passenger window/ door lock switch Relay ctrl Right i/p fuse block (lower right side of dash) Right i/p fuse block (on lower right side of dash) Rr defog fuse Rr defog relay Splice pack sp203 Underhood fuse block (at left side of engine compartment, near battery) Uplevel & crew cab Rear Defogger Wiring Diagram for Chevrolet Silverado 2002 1500 List of elements for Rear Defogger Wiring Diagram for Chevrolet Silverado 2002 1500: 38 (auto a/c) (auto a/c) (man a/c) (man a/c) (pickup:right "b" pillar) A c1 A c2 A9 f3 Body relay bock (left side of dash) C c1 C1 c1 C10 C6 k c1 D14 j D9 c1 Except crew cab F3 c1 G200 (right "a" pillar) G203 (left "a" pillar) G306 (pickup) g390 (crewcab) Ground Hot at all times Hot in run Hot in run & start Htd mir fuse Hvac 1 fuse 10a Hvac control module (in center of dash, under radio) Ign Ign e fuse 10a Ind Left i/p fuse block (left side of dash) Rear window defogger grid Relay ctrl Right i/p fuse block (lower right side of dash) Rr defog fuse 30a Rr defog relay Splice pack sp203 Underhood fuse block (at left side of engine compartment, near battery) Uplevel & crew cab
ELECTRONIC POWER STEERING Electronic Power Steering Wiring Diagram for Chevrolet Silverado 2002 1500 List of elements for Electronic Power Steering Wiring Diagram for Chevrolet Silverado 2002 1500: 55 12v ref 5 volt ref B10 Bat Battery Combination yaw rate sensor/lateral accelerometer sensor (under passenger seat) Computer data lines system G203 Ground distribution system Hall a sig Hall b sig Hall c sig Hot at all times Hot in run Hot in run or start Ign 3 fuse 10a Ign 3 volt Ind sply volt Instrument cluster system Interior lights system Lat accel sig Left i/p fuse block Mega fuse 125a Mod gnd Mode sw sig Phase a ctrl Phase a sig Phase b ctrl Phase b sig Phase c ctrl Pos 1 sig Pos 2 sig Power distribution system Pulse sig Rear wheel position sensor (left rear of vehicle) Rear wheel steering control module (near spare tire bracket) Rear wheel steering mode select switch Red Rly gnd Rly volt Sens gnd Sens ret Sens sig Seo 1 fuse 15a Serial data Splice pack (left "a" pillar) Sply volt Steering gear motor assembly (near spare tire bracket) Steering wheel speed/ position sensor (on steering column) Tan Tan c Underhood fuse block Underhood fuse holder Vss Yaw sens sig
ELECTRONIC SUSPENSION Electronic Suspension Wiring Diagram for Chevrolet Silverado 2002 1500 List of elements for Electronic Suspension Wiring Diagram for Chevrolet Silverado 2002 1500: 22 Body relay block (under left side of dash, near kick panel) Dimming control E11 Firm G202 (upper left kick panel) G302 (on left body mount) G401 (on spare tire hoist bracket) Hot in run or start Illum Indicator Interior lights system Left front shock absorber solenoid Left i/p fuse block (on lower left side of dash) Left rear shock absorber solenoid Off Pnk Right front shock absorber solenoid Right rear shock absorber solenoid Selectable ride switch Seo ign fuse 10a Sp203 Underhood fuse block (near battery)
ENGINE PERFORMANCE
4.3L 4.3L VIN W, Engine Performance Wiring Diagrams (1 of 4) for Chevrolet Silverado 2002 1500 List of elements for 4.3L VIN W, Engine Performance Wiring Diagrams (1 of 4) for Chevrolet Silverado 2002 1500: 64 (below steering column) data link connector (bottom front of engine) crankshaft position sensor +5v 3-2 ss Body control module (below steering column) Brk sw C10 C11 C12 Ckp Cls 2 data Clutch sw Cmp Coolant lev D10 E12 Ecm1 fuse 10a Ecmb fuse 20a Ect sig Egr input G103 (left rear of engine) Gnd Ho2s hi Ho2s lo Hot at all times Hot in run & start Ign Ign 0 fuse 10a Inj1 Inj2 Inj3 Inj4 Inj5 Inj6 Inja fuse 15a Injb fuse 15a Injectors Knock sens Left i/p fuse block Nca O2a fuse 15a O2b fuse 15a Oil lev Pnk Pnk b Pnk d Pnk e Pnk h Pnk j Pnk l Powertrain control module (left front of engine compt) Prnd a Prnd b Prnd p Range b Range c Red Ref low S103 Sens gnd Sens rtn Sp205 (behind headlamp switch) Tan Under- hood junction block 4.3L VIN W, Engine Performance Wiring Diagrams (2 of 4) for Chevrolet Silverado 2002 1500 List of elements for 4.3L VIN W, Engine Performance Wiring Diagrams (2 of 4) for Chevrolet Silverado 2002 1500: 38 (left rear of engine) (left rear of engine) g103 (not used) Air maxi fuse 30a j7 Ecm b fuse 20a Engine coolant level switch (in coolant reservoir) Engine coolant temperature sensor (left front of cylinder head) Engine oil level switch (right side of oil pan) Fuel pump relay Fuel pump/ level sensor (in fuel tank) G102 (right front of engine) G103 (left rear of engine) G104 G105 (left front of engine) G403 (left frame body mount bracket) Heated oxygen sensor (bank 1 sensor 1) (left exh pipe, before converter) Heated oxygen sensor (bank 1 sensor 2) (left exh pipe, after converter) Heated oxygen sensor (bank 2 sensor 1) (right exh pipe, before converter) Heated oxygen sensor (bank 2 sensor 2) (right exh pipe, after converter) Hot at all times Hot in run & start Ign e fuse 10a c2 Knock sensor (rear of engine block) Nca Park/neutral position switch (left side of transmission) Pnk Red S103 S104 S104 (in engine harness) S108 S110 Secondary air injection reaction pump (right rear of engine compt) Secondary air injection reaction relay (right rear of engine compartment) Secondary air injection reaction solenoid (right rear of engine compt) Tan Throttle position sensor (on throttle body assy) Under- hood junction block 4.3L VIN W, Engine Performance Wiring Diagrams (3 of 4) for Chevrolet Silverado 2002 1500 List of elements for 4.3L VIN W, Engine Performance Wiring Diagrams (3 of 4) for Chevrolet Silverado 2002 1500: 46 1-2 sol 2-3 sol 3-2 sol A red A/t fluid pressure manual valve position switch Automatic transaxle B red Body junction block Brake fuse 10a Camshaft position sensor (in distributor) Clutch pedal position switch (top of pedal bracket) Evap canister purge solenoid (top right rear of engine) Evap canister vent valve (left front side of fuel tank) Exhaust gas recirculation valve (top right front of engine) Fuel tank pressure sensor (in fuel tank) Fuse block G103 (right rear of engine) Gnd Hot in run & start Iat sensor Ign Ign0 fuse 10a Left i/p fuse block Manifold absolute pressure sensor (top rear of engine) Mass airflow sensor (in air intake duct) N pnk P red Pc sol valve Pnk Pnk a Pnk b Pnk d Red Red e Red/ Rev S103 Signal Stop- lamp switch (top of brake pedal bracket) Tan Tan b Tcc pwm sol Tcc sol Tft sensor Under- hood junction block Vehicle speed sensor (left rear of transmission) 4.3L VIN W, Engine Performance Wiring Diagrams (4 of 4) for Chevrolet Silverado 2002 1500 List of elements for 4.3L VIN W, Engine Performance Wiring Diagrams (4 of 4) for Chevrolet Silverado 2002 1500: 72 1-2 ss 2-3 ss 4wd low A/c clu A/c req A/c system Air pump Anti-lock brake system (speed signal) Coil driver Coil wire Cruise control system Cruise eng Cyc sw in Distributor Egr ctrl Egr gnd Eng1 fuse 10a Evap canp Evap vent Front axle actuator (right side of center on axle housing) Frt axle sw Fuel lev Fuel pmp Fuel sig ctrl G102 (right front of engine) G103 (left rear of engine) Gen f Gen l Gnd Hot in run & start Iac coil hi Iac coil lo Iat sig Ic timing ctrl Idle air control valve (top of throttle body) Ign Ign feed Ign1 fuse 10a Ignition coil Ignition control module (right rear of engine) Instrument cluster systems (speed signal) Instrument panel cluster Left i/p fuse block Maf sig Malfunction indicator lamp Map sig Mil ctrl Pc sol hi Pc sol lo Pnk Pnk a Powertrain control module (left front of engine compt) Prnd c Recirc door Recirc sw Red Rpm out S103 Sens gnd Starting/charging system Tan Tcc pwm Tcc sol Tft sens sig Timing Tp sig Trans rng a Transfer case shift control switch (left front of transaxle case) Under- hood junction block Vss high Vss low Vss out 4.3L VIN X, Engine Performance Wiring Diagrams (1 of 4) for Chevrolet Silverado 2002 1500 List of elements for 4.3L VIN X, Engine Performance Wiring Diagrams (1 of 4) for Chevrolet Silverado 2002 1500: 64 (below steering column) data link connector (lower right rear of engine) crankshaft position sensor +5v 3-2 ss Body control module (below steering column) Brk sw C10 C11 C12 Ckp Cls 2 data Clutch sw Cmp Coolant lev D10 E12 Ecm1 fuse 10a Ecmb fuse 20a Ect sig Egr input G103 (left rear of engine) Gnd Ho2s hi Ho2s lo Hot at all times Hot in run & start Ign Ign 0 fuse 10a Inj1 Inj2 Inj3 Inj4 Inj5 Inj6 Inja fuse 15a Injb fuse 15a Injectors Knock sens Left i/p fuse block Nca O2a fuse 15a O2b fuse 15a Oil lev Pnk Pnk b Pnk d Pnk e Pnk h Pnk j Pnk l Powertrain control module (left front of engine compt) Prnd a Prnd b Prnd p Range b Range c Red Ref low S103 Sens gnd Sens rtn Sp205 (behind headlamp switch) Tan Under- hood junction block 4.3L VIN X, Engine Performance Wiring Diagrams (2 of 4) for Chevrolet Silverado 2002 1500 List of elements for 4.3L VIN X, Engine Performance Wiring Diagrams (2 of 4) for Chevrolet Silverado 2002 1500: 40 (in eng harn) (left rear of engine) (left rear of engine) g103 (not used) Air maxi fuse 30a j7 Ecm b fuse 20a Engine coolant level switch (in coolant reservoir) Engine coolant temperature sensor (left front of cylinder head) Engine oil level switch (right side of oil pan) Fuel pump relay Fuel pump/ level sensor (in fuel tank) G102 (right front of engine) G103 (left rear of engine) G104 G105 (left front of engine) G403 (left frame body mount bracket) Heated oxygen sensor (bank 1 sensor 1) (left exh pipe, before converter) Heated oxygen sensor (bank 1 sensor 2) (left exh pipe, after converter) Heated oxygen sensor (bank 2 sensor 1) (right exh pipe, before converter) Heated oxygen sensor (bank 2 sensor 2) (right exh pipe, after converter) Hot at all times Hot in run & start Ign e fuse 10a c2 Knock sensor (rear of engine block) Nca Park/neutral position switch (left side of transmission) Pnk Red S103 S104 S104 (in engine harness) S108 S110 S114 Secondary air injection reaction pump (right rear of engine compt) Secondary air injection reaction relay (right rear of engine compartment) Secondary air injection reaction solenoid (right rear of engine compt) Tan Throttle position sensor (on throttle body assy) Under- hood junction block 4.3L VIN X, Engine Performance Wiring Diagrams (3 of 4) for Chevrolet Silverado 2002 1500 List of elements for 4.3L VIN X, Engine Performance Wiring Diagrams (3 of 4) for Chevrolet Silverado 2002 1500: 46 1-2 sol 2-3 sol 3-2 sol A red A/t fluid pressure manual valve position switch Automatic transaxle B red Body junction block Brake fuse 10a Camshaft position sensor (in distributor) Clutch pedal position switch (top of pedal bracket) Evap canister purge solenoid (top right rear of engine) Evap canister vent valve (left front side of fuel tank) Exhaust gas recirculation valve (top right front of engine) Fuel tank pressure sensor (in fuel tank) Fuse block G103 (right rear of engine) Gnd Hot in run & start Iat sensor Ign Ign0 fuse 10a Left i/p fuse block Manifold absolute pressure sensor (top rear of engine) Mass airflow sensor (in air intake duct) N pnk P red Pc sol valve Pnk Pnk a Pnk b Pnk d Red Red e Red/ Rev S103 Signal Stop- lamp switch (top of brake pedal bracket) Tan Tan b Tcc pwm sol Tcc sol Tft sensor Under- hood junction block Vehicle speed sensor (left rear of transmission) 4.3L VIN X, Engine Performance Wiring Diagrams (4 of 4) for Chevrolet Silverado 2002 1500 List of elements for 4.3L VIN X, Engine Performance Wiring Diagrams (4 of 4) for Chevrolet Silverado 2002 1500: 73 1-2 ss 2-3 ss 4wd low A/c clu A/c req A/c system Air pump Anti-lock brake system (speed signal) Coil driver Coil wire Cruise control system Cruise eng Cyc sw in Distributor Egr ctrl Egr gnd Eng1 fuse 10a Evap canp Evap vent Front axle actuator (right side of center on axle housing) Frt axle sw Fuel lev Fuel pmp Fuel sig ctrl G102 (right front of engine) G103 (left rear of engine) Gen f Gen l Gnd Ho2s lo Hot in run & start Iac coil hi Iac coil lo Iat sig Ic timing ctrl Idle air control valve (top of throttle body) Ign Ign feed Ign1 fuse 10a Ignition coil Ignition control module (right rear of engine) Instrument cluster systems (speed signal) Instrument panel cluster Left i/p fuse block Maf sig Malfunction indicator lamp Map sig Mil ctrl Pc sol hi Pc sol lo Pnk Pnk a Powertrain control module (left front of engine compt) Prnd c Recirc door Recirc sw Red Rpm out S103 Sens gnd Starting/charging system Tan Tcc pwm Tcc sol Tft sens sig Timing Tp sig Trans rng a Transfer case shift control switch (left front of transaxle case) Under- hood junction block Vss high Vss low Vss out
4.8L 4.8L VIN V, Engine Performance Wiring Diagrams, with Case Grounded HO2S Sensors (1 of 5) for Chevrolet Silverado 2002 1500 List of elements for 4.8L VIN V, Engine Performance Wiring Diagrams, with Case Grounded HO2S Sensors (1 of 5) for Chevrolet Silverado 2002 1500: 68 (below steering column) data link connector (lower right rear of engine) crankshaft position sensor +5v 3-2 ss Anti-lock brake system Body control module (below steering column) Brk sw C10 C11 C12 Ckp Cls 2 data Cmp Coolant lev D10 E12 Ecm1 fuse 10a Ecmb fuse 20a Ect sig Egr input Electronic suspension system Fuel comp sig G103 (left rear of engine) Gnd Ho2s hi Ho2s lo Hot at all times Hot in run & start Ign Ign 0 fuse 10a Inj1 Inj2 Inj3 Inj4 Inj5 Inj6 Inj7 Inj8 Inja fuse 15a Injb fuse 15a Injectors Ks signal Left i/p fuse block Lift/dive sig O2a fuse 15a O2b fuse 15a Oil lev Pnk Pnk b Powertrain control module (left front of engine compt) Prnd a Prnd b Prnd p Range b Range c Red Ref low Req torque S103 Sens gnd Sens rtn Serial data Sp205 (behind headlamp switch) Tan Theft deterrent control module Underhood fuse block W/ remote function actuator W/o remote function actuator 4.8L VIN V, Engine Performance Wiring Diagrams, with Case Grounded HO2S Sensors (2 of 5) for Chevrolet Silverado 2002 1500 List of elements for 4.8L VIN V, Engine Performance Wiring Diagrams, with Case Grounded HO2S Sensors (2 of 5) for Chevrolet Silverado 2002 1500: 31 (left rear of engine) (left rear of engine) g104 (not used) (right front of engine) Coolant level switch (in coolant reservoir) Ecm b fuse 20a Engine coolant temperature sensor (left front of cylinder head) Engine oil level switch (right side of oil pan) Fuel pump & sender (in fuel tank) Fuel pump relay G103 (left rear of engine) G104 G105 G105 (right front of engine) G403 (left frame body mount bracket) Heated oxygen sensor (bank 1 sensor 1) (left exh pipe before converter) Heated oxygen sensor (bank 1 sensor 2) (left exh pipe after converter) Heated oxygen sensor (bank 2 sensor 1) (right exh pipe before converter) Heated oxygen sensor (bank 2 sensor 2) (right exh pipe after converter) Hot at all times Knock sensor (under intake manifold) Nca Park/neutral position switch (left side of transmission) Pnk Red S102 S103 S104 Tan Throttle position sensor (w/o electronic throttle control) (on throttle body assy) Under- hood fuse block 4.8L VIN V, Engine Performance Wiring Diagrams, with Case Grounded HO2S Sensors (3 of 5) for Chevrolet Silverado 2002 1500 List of elements for 4.8L VIN V, Engine Performance Wiring Diagrams, with Case Grounded HO2S Sensors (3 of 5) for Chevrolet Silverado 2002 1500: 37 1-2 sol 2-3 sol 3-2 sol A red A/t fluid pressure manual valve position switch Automatic transaxle Body relay block Brake fuse 10a Camshaft position sensor (top center rear of engine) Evap canister purge solenoid (top right rear of engine) Evap canister vent solenoid (right front side of fuel tank) Exhaust gas recirculation valve (top right front of engine) F12 Fuel tank pressure sensor (in fuel tank) Hot in run Hot in run & start Left i/p fuse block Manifold absolute pressure sensor (top rear of engine) N pnk P red Pc sol valve Pnk Pnk a Pnk b Red Red e Red/ Rev Stop lps fuse 20a Stop- lamp switch (top of brake pedal bracket) Tan Tcc pwm sol Tcc sol Tft sensor Under- hood fuse block Vehicle speed sensor (left rear of transmission) Vehicle speed sensor adapter (4wd) (left side of trans) 4.8L VIN V, Engine Performance Wiring Diagrams, with Case Grounded HO2S Sensors (4 of 5) for Chevrolet Silverado 2002 1500 List of elements for 4.8L VIN V, Engine Performance Wiring Diagrams, with Case Grounded HO2S Sensors (4 of 5) for Chevrolet Silverado 2002 1500: 46 A10 Accelerator pedal position sensor (w/ electronic throttle control) (behind accelerator pedal) Act cntrl App sens 1 App sens 2 App sens 3 C11 Cruise control system Cruise req D11 Data Ecm1 fuse 10a Ect fuse 15a Fuel composition sensor (flex fuel) G103 (left rear of engine) G104 (left rear of engine) Gnd Ground Hot in run & start Hot in run or start Iat sensor Ign Ign0 fuse 10a Intake air temperature/ mass airflow sensor (in air intake duct) Left i/p fuse block Pnk Pnk d R/a input Red S/c input S103 Sens 1 grd Sens 2 grd Sens 3 grd Sens grd Signal Stp lp in Tan Tan b Throttle actuator control (tac) module (w/ electronic throttle control) (in left rear of engine compt) Throttle actuator control motor (w/ electronic throttle control) (on throttle body) Throttle position sensor (w/ electronic throttle control) (on throttle body) Tp sens 1 Tp sens 2 Underhood fuse block Veh stop fuse 10a 4.8L VIN V, Engine Performance Wiring Diagrams, with Case Grounded HO2S Sensors (5 of 5) for Chevrolet Silverado 2002 1500 List of elements for 4.8L VIN V, Engine Performance Wiring Diagrams, with Case Grounded HO2S Sensors (5 of 5) for Chevrolet Silverado 2002 1500: 80 (in engine harness) (left rear of engine) g104 (right front of engine) g105 1-2 ss 2-3 ss 4wd low A/c clu A/c req A/c system Anti-lock brake system Anti-lock brake system (speed signal) Cruise control system Cruise eng Ctrl Cyc sw in Delivered torq Egr ctrl Egr gnd Eng1 fuse 10a Evap canp Evap vent Fuel lev Fuel pmp Fuel sig ctrl G103 (left rear of engine) Gen f Gen l Gnd Hot in run & start Iac coil hi Iac coil lo Iat sig Idle air control valve (top of throttle body) Ign Ign ctrl Ign feed Ign1 fuse 10a Ignition coils Instrument cluster systems (speed signal) Instrument panel cluster Left i/p fuse block Maf sig Malfunction indicator lamp Map sig Mil ctrl Nca Nca nca Pc sol hi Pc sol lo Pnk Pnk d Powertrain control module (left front of engine compt) Prnd c Recirc door Recirc sw Red Red c Ref lo Ref low Rpm out S103 S151 S152 S153 S154 S157 Sens gnd Spark plug Starting/charging system Tan Tcc pwm Tcc sol Tft sens sig Tp sig Trans rng a Transfer case shift control module (behind headlight switch) Underhood fuse block Vss high Vss low Vss out 4.8L VIN V, Engine Performance Wiring Diagrams, with Isolated Grounded HO2S Sensors (1 of 5) for Chevrolet Silverado 2002 1500 List of elements for 4.8L VIN V, Engine Performance Wiring Diagrams, with Isolated Grounded HO2S Sensors (1 of 5) for Chevrolet Silverado 2002 1500: 68 (below steering column) data link connector (lower right rear of engine) crankshaft position sensor +5v 3-2 ss Anti-lock brake system Body control module (below steering column) Brk sw C10 C11 C12 Ckp Cls 2 data Cmp Coolant lev D10 E12 Ecm1 fuse 10a Ecmb fuse 20a Ect sig Egr input Electronic suspension system Fuel comp sig G103 (left rear of engine) Gnd Ho2s hi Ho2s lo Hot at all times Hot in run & start Ign Ign 0 fuse 10a Inj1 Inj2 Inj3 Inj4 Inj5 Inj6 Inj7 Inj8 Inja fuse 15a Injb fuse 15a Injectors Ks signal Left i/p fuse block Lift/dive sig O2a fuse 15a O2b fuse 15a Oil lev Pnk Pnk b Powertrain control module (left front of engine compt) Prnd a Prnd b Prnd p Range b Range c Red Ref low Req torque S103 Sens gnd Sens rtn Serial data Sp205 (behind headlamp switch) Tan Theft deterrent control module Under- hood fuse block W/ remote function actuator W/o remote function actuator 4.8L VIN V, Engine Performance Wiring Diagrams, with Isolated Grounded HO2S Sensors (2 of 5) for Chevrolet Silverado 2002 1500 List of elements for 4.8L VIN V, Engine Performance Wiring Diagrams, with Isolated Grounded HO2S Sensors (2 of 5) for Chevrolet Silverado 2002 1500: 33 (eng harness) s114 (left rear of engine) (left rear of engine) g104 (not used) (right front of engine) Coolant level switch (in coolant reservoir) Ecm b fuse 20a Engine coolant temperature sensor (left front of cylinder head) Engine oil level switch (right side of oil pan) Fuel pump & sender assembly (in fuel tank) Fuel pump relay G103 (left rear of engine) G104 G104 (left rear of engine) G105 G403 (left frame body mount bracket) Heated oxygen sensor (bank 1 sensor 1) (left exh pipe before converter) Heated oxygen sensor (bank 1 sensor 2) (left exh pipe after converter) Heated oxygen sensor (bank 2 sensor 1) (right exh pipe before converter) Heated oxygen sensor (bank 2 sensor 2) (right exh pipe after converter) Hot at all times Knock sensor (under intake manifold) Nca Park/neutral position switch (left side of transmission) Pnk Red S102 S103 S104 S113 (eng harness) Tan Throttle position sensor (w/o electronic throttle control) (on throttle body assy) Under- hood fuse block 4.8L VIN V, Engine Performance Wiring Diagrams, with Isolated Grounded HO2S Sensors (3 of 5) for Chevrolet Silverado 2002 1500 List of elements for 4.8L VIN V, Engine Performance Wiring Diagrams, with Isolated Grounded HO2S Sensors (3 of 5) for Chevrolet Silverado 2002 1500: 37 1-2 sol 2-3 sol 3-2 sol A red A/t fluid pressure manual valve position switch Automatic transaxle Body relay block Brake fuse 10a Camshaft position sensor (top center rear of engine) Evap canister purge solenoid (top right rear of engine) Evap canister vent solenoid (right front side of fuel tank) Exhaust gas recirculation valve (top right front of engine) F12 Fuel tank pressure sensor (in fuel tank) Hot in run Hot in run & start Left i/p fuse block Manifold absolute pressure sensor (top rear of engine) N pnk P red Pc sol valve Pnk Pnk a Pnk b Red Red e Red/ Rev Stop lps fuse 20a Stop- lamp switch (top of brake pedal bracket) Tan Tcc pwm sol Tcc sol Tft sensor Under- hood fuse block Vehicle speed sensor (left rear of transmission) Vehicle speed sensor adapter (4wd) (left side of trans) c2 4.8L VIN V, Engine Performance Wiring Diagrams, with Isolated Grounded HO2S Sensors (4 of 5) for Chevrolet Silverado 2002 1500 List of elements for 4.8L VIN V, Engine Performance Wiring Diagrams, with Isolated Grounded HO2S Sensors (4 of 5) for Chevrolet Silverado 2002 1500: 45 A10 Accelerator pedal position sensor (w/ electronic throttle control) (behind accelerator pedal) Act cntrl App sens 1 App sens 2 App sens 3 C11 Cruise control system Cruise req D11 Data Ecm1 fuse 10a Ect fuse 15a Fuel composition sensor (flex fuel) G103 (left rear of engine) G104 (left rear of engine) Gnd Ground Hot in run & start Hot in run or start Iat sensor Ign Ign0 fuse 10a Intake air temperature/ mass airflow sensor (in air induction duct) Left i/p fuse block Pnk R/a input Red S/c input S103 Sens 1 grd Sens 2 grd Sens 3 grd Sens grd Signal Stp lp in Tan Throttle actuator control (tac) module (w/ electronic throttle control) (in left rear of engine compt) Throttle actuator control motor (w/ electronic throttle control) (on throttle body) Throttle position sensor (w/ electronic throttle control) (on throttle body) Tp sens 1 Tp sens 2 Under- hood fuse block Underhood fuse block Veh stop fuse 10a 4.8L VIN V, Engine Performance Wiring Diagrams, with Isolated Grounded HO2S Sensors (5 of 5) for Chevrolet Silverado 2002 1500 List of elements for 4.8L VIN V, Engine Performance Wiring Diagrams, with Isolated Grounded HO2S Sensors (5 of 5) for Chevrolet Silverado 2002 1500: 80 (in engine harness) (left rear of engine) g104 (right front of engine) g105 1-2 ss 2-3 ss 4wd low A/c clu A/c req A/c system Anti-lock brake system Anti-lock brake system (speed signal) Cruise control system Cruise eng Ctrl Cyc sw in Delivered torq Egr ctrl Egr gnd Eng1 fuse 10a Evap canp Evap vent Fuel lev Fuel pmp Fuel sig ctrl G103 (left rear of engine) Gen f Gen l Gnd Hot in run & start Iac coil hi Iac coil lo Iat sig Idle air control valve (top of throttle body) Ign Ign ctrl Ign feed Ign1 fuse 10a Ignition coils Instrument cluster systems (speed signal) Instrument panel cluster Left i/p fuse block Maf sig Malfunction indicator lamp Map sig Mil ctrl Nca Nca nca Pc sol hi Pc sol lo Pnk Pnk d Powertrain control module (left front of engine compt) Prnd c Recirc door Recirc sw Red Red c Ref lo Ref low Rpm out S103 S151 S152 S153 S154 S157 Sens gnd Spark plug Starting/charging system Tan Tcc pwm Tcc sol Tft sens sig Tp sig Trans rng a Transfer case shift control module (behind headlight switch) Underhood fuse block Vss high Vss low Vss out
5.3L 5.3L VIN T, Engine Performance Wiring Diagrams, with Case Grounded HO2S Sensors (1 of 5) for Chevrolet Silverado 2002 1500 List of elements for 5.3L VIN T, Engine Performance Wiring Diagrams, with Case Grounded HO2S Sensors (1 of 5) for Chevrolet Silverado 2002 1500: 68 (below steering column) data link connector (lower right rear of engine) crankshaft position sensor +5v 3-2 ss Anti-lock brake system Body control module (below steering column) Brk sw C10 C11 C12 Ckp Cls 2 data Cmp Coolant lev D10 E12 Ecm1 fuse 10a Ecmb fuse 20a Ect sig Egr input Electronic suspension system Fuel comp sig G103 (left rear of engine) Gnd Ho2s hi Ho2s lo Hot at all times Hot in run & start Ign Ign 0 fuse 10a Inj1 Inj2 Inj3 Inj4 Inj5 Inj6 Inj7 Inj8 Inja fuse 15a Injb fuse 15a Injectors Ks signal Left i/p fuse block Lift/dive sig O2a fuse 15a O2b fuse 15a Oil lev Pnk Pnk b Powertrain control module (left front of engine compt) Prnd a Prnd b Prnd p Range b Range c Red Ref low Req torque S103 Sens gnd Sens rtn Serial data Sp205 (behind headlamp switch) Tan Theft deterrent control module Underhood fuse block W/ remote function actuator W/o remote function actuator 5.3L VIN T, Engine Performance Wiring Diagrams, with Case Grounded HO2S Sensors (2 of 5) for Chevrolet Silverado 2002 1500 List of elements for 5.3L VIN T, Engine Performance Wiring Diagrams, with Case Grounded HO2S Sensors (2 of 5) for Chevrolet Silverado 2002 1500: 31 (left rear of engine) (left rear of engine) g104 (not used) (right front of engine) Coolant level switch (in coolant reservoir) Ecm b fuse 20a Engine coolant temperature sensor (left front of cylinder head) Engine oil level switch (right side of oil pan) Fuel pump & sender (in fuel tank) Fuel pump relay G103 (left rear of engine) G104 G105 G105 (right front of engine) G403 (left frame body mount bracket) Heated oxygen sensor (bank 1 sensor 1) (left exh pipe before converter) Heated oxygen sensor (bank 1 sensor 2) (left exh pipe after converter) Heated oxygen sensor (bank 2 sensor 1) (right exh pipe before converter) Heated oxygen sensor (bank 2 sensor 2) (right exh pipe after converter) Hot at all times Knock sensor (under intake manifold) Nca Park/neutral position switch (left side of transmission) Pnk Red S102 S103 S104 Tan Throttle position sensor (w/o electronic throttle control) (on throttle body assy) Under- hood fuse block 5.3L VIN T, Engine Performance Wiring Diagrams, with Case Grounded HO2S Sensors (3 of 5) for Chevrolet Silverado 2002 1500 List of elements for 5.3L VIN T, Engine Performance Wiring Diagrams, with Case Grounded HO2S Sensors (3 of 5) for Chevrolet Silverado 2002 1500: 37 1-2 sol 2-3 sol 3-2 sol A red A/t fluid pressure manual valve position switch Automatic transaxle Body relay block Brake fuse 10a Camshaft position sensor (top center rear of engine) Evap canister purge solenoid (top right rear of engine) Evap canister vent solenoid (right front side of fuel tank) Exhaust gas recirculation valve (top right front of engine) F12 Fuel tank pressure sensor (in fuel tank) Hot in run Hot in run & start Left i/p fuse block Manifold absolute pressure sensor (top rear of engine) N pnk P red Pc sol valve Pnk Pnk a Pnk b Red Red e Red/ Rev Stop lps fuse 20a Stop- lamp switch (top of brake pedal bracket) Tan Tcc pwm sol Tcc sol Tft sensor Under- hood fuse block Vehicle speed sensor (left rear of transmission) Vehicle speed sensor adapter (4wd) (left side of trans) 5.3L VIN T, Engine Performance Wiring Diagrams, with Case Grounded HO2S Sensors (4 of 5) for Chevrolet Silverado 2002 1500 List of elements for 5.3L VIN T, Engine Performance Wiring Diagrams, with Case Grounded HO2S Sensors (4 of 5) for Chevrolet Silverado 2002 1500: 46 A10 Accelerator pedal position sensor (w/ electronic throttle control) (behind accelerator pedal) Act cntrl App sens 1 App sens 2 App sens 3 C11 Cruise control system Cruise req D11 Data Ecm1 fuse 10a Ect fuse 15a Fuel composition sensor (flex fuel) G103 (left rear of engine) G104 (left rear of engine) Gnd Ground Hot in run & start Hot in run or start Iat sensor Ign Ign0 fuse 10a Intake air temperature/ mass airflow sensor (in air intake duct) Left i/p fuse block Pnk Pnk d R/a input Red S/c input S103 Sens 1 grd Sens 2 grd Sens 3 grd Sens grd Signal Stp lp in Tan Tan b Throttle actuator control (tac) module (w/ electronic throttle control) (in left rear of engine compt) Throttle actuator control motor (w/ electronic throttle control) (on throttle body) Throttle position sensor (w/ electronic throttle control) (on throttle body) Tp sens 1 Tp sens 2 Underhood fuse block Veh stop fuse 10a 5.3L VIN T, Engine Performance Wiring Diagrams, with Case Grounded HO2S Sensors (5 of 5) for Chevrolet Silverado 2002 1500 List of elements for 5.3L VIN T, Engine Performance Wiring Diagrams, with Case Grounded HO2S Sensors (5 of 5) for Chevrolet Silverado 2002 1500: 80 (in engine harness) (left rear of engine) g104 (right front of engine) g105 1-2 ss 2-3 ss 4wd low A/c clu A/c req A/c system Anti-lock brake system Anti-lock brake system (speed signal) Cruise control system Cruise eng Ctrl Cyc sw in Delivered torq Egr ctrl Egr gnd Eng1 fuse 10a Evap canp Evap vent Fuel lev Fuel pmp Fuel sig ctrl G103 (left rear of engine) Gen f Gen l Gnd Hot in run & start Iac coil hi Iac coil lo Iat sig Idle air control valve (top of throttle body) Ign Ign ctrl Ign feed Ign1 fuse 10a Ignition coils Instrument cluster systems (speed signal) Instrument panel cluster Left i/p fuse block Maf sig Malfunction indicator lamp Map sig Mil ctrl Nca Nca nca Pc sol hi Pc sol lo Pnk Pnk d Powertrain control module (left front of engine compt) Prnd c Recirc door Recirc sw Red Red c Ref lo Ref low Rpm out S103 S151 S152 S153 S154 S157 Sens gnd Spark plug Starting/charging system Tan Tcc pwm Tcc sol Tft sens sig Tp sig Trans rng a Transfer case shift control module (behind headlight switch) Underhood fuse block Vss high Vss low Vss out 5.3L VIN T, Engine Performance Wiring Diagrams, with Isolated Grounded HO2S Sensors (1 of 5) for Chevrolet Silverado 2002 1500 List of elements for 5.3L VIN T, Engine Performance Wiring Diagrams, with Isolated Grounded HO2S Sensors (1 of 5) for Chevrolet Silverado 2002 1500: 68 (below steering column) data link connector (lower right rear of engine) crankshaft position sensor +5v 3-2 ss Anti-lock brake system Body control module (below steering column) Brk sw C10 C11 C12 Ckp Cls 2 data Cmp Coolant lev D10 E12 Ecm1 fuse 10a Ecmb fuse 20a Ect sig Egr input Electronic suspension system Fuel comp sig G103 (left rear of engine) Gnd Ho2s hi Ho2s lo Hot at all times Hot in run & start Ign Ign 0 fuse 10a Inj1 Inj2 Inj3 Inj4 Inj5 Inj6 Inj7 Inj8 Inja fuse 15a Injb fuse 15a Injectors Ks signal Left i/p fuse block Lift/dive sig O2a fuse 15a O2b fuse 15a Oil lev Pnk Pnk b Powertrain control module (left front of engine compt) Prnd a Prnd b Prnd p Range b Range c Red Ref low Req torque S103 Sens gnd Sens rtn Serial data Sp205 (behind headlamp switch) Tan Theft deterrent control module Under- hood fuse block W/ remote function actuator W/o remote function actuator 5.3L VIN T, Engine Performance Wiring Diagrams, with Isolated Grounded HO2S Sensors (2 of 5) for Chevrolet Silverado 2002 1500 List of elements for 5.3L VIN T, Engine Performance Wiring Diagrams, with Isolated Grounded HO2S Sensors (2 of 5) for Chevrolet Silverado 2002 1500: 33 (eng harness) s114 (left rear of engine) (left rear of engine) g104 (not used) (right front of engine) Coolant level switch (in coolant reservoir) Ecm b fuse 20a Engine coolant temperature sensor (left front of cylinder head) Engine oil level switch (right side of oil pan) Fuel pump & sender assembly (in fuel tank) Fuel pump relay G103 (left rear of engine) G104 G104 (left rear of engine) G105 G403 (left frame body mount bracket) Heated oxygen sensor (bank 1 sensor 1) (left exh pipe before converter) Heated oxygen sensor (bank 1 sensor 2) (left exh pipe after converter) Heated oxygen sensor (bank 2 sensor 1) (right exh pipe before converter) Heated oxygen sensor (bank 2 sensor 2) (right exh pipe after converter) Hot at all times Knock sensor (under intake manifold) Nca Park/neutral position switch (left side of transmission) Pnk Red S102 S103 S104 S113 (eng harness) Tan Throttle position sensor (w/o electronic throttle control) (on throttle body assy) Under- hood fuse block 5.3L VIN T, Engine Performance Wiring Diagrams, with Isolated Grounded HO2S Sensors (3 of 5) for Chevrolet Silverado 2002 1500 List of elements for 5.3L VIN T, Engine Performance Wiring Diagrams, with Isolated Grounded HO2S Sensors (3 of 5) for Chevrolet Silverado 2002 1500: 37 1-2 sol 2-3 sol 3-2 sol A red A/t fluid pressure manual valve position switch Automatic transaxle Body relay block Brake fuse 10a Camshaft position sensor (top center rear of engine) Evap canister purge solenoid (top right rear of engine) Evap canister vent solenoid (right front side of fuel tank) Exhaust gas recirculation valve (top right front of engine) F12 Fuel tank pressure sensor (in fuel tank) Hot in run Hot in run & start Left i/p fuse block Manifold absolute pressure sensor (top rear of engine) N pnk P red Pc sol valve Pnk Pnk a Pnk b Red Red e Red/ Rev Stop lps fuse 20a Stop- lamp switch (top of brake pedal bracket) Tan Tcc pwm sol Tcc sol Tft sensor Under- hood fuse block Vehicle speed sensor (left rear of transmission) Vehicle speed sensor adapter (4wd) (left side of trans) c2 5.3L VIN T, Engine Performance Wiring Diagrams, with Isolated Grounded HO2S Sensors (4 of 5) for Chevrolet Silverado 2002 1500 List of elements for 5.3L VIN T, Engine Performance Wiring Diagrams, with Isolated Grounded HO2S Sensors (4 of 5) for Chevrolet Silverado 2002 1500: 45 A10 Accelerator pedal position sensor (w/ electronic throttle control) (behind accelerator pedal) Act cntrl App sens 1 App sens 2 App sens 3 C11 Cruise control system Cruise req D11 Data Ecm1 fuse 10a Ect fuse 15a Fuel composition sensor (flex fuel) G103 (left rear of engine) G104 (left rear of engine) Gnd Ground Hot in run & start Hot in run or start Iat sensor Ign Ign0 fuse 10a Intake air temperature/ mass airflow sensor (in air induction duct) Left i/p fuse block Pnk R/a input Red S/c input S103 Sens 1 grd Sens 2 grd Sens 3 grd Sens grd Signal Stp lp in Tan Throttle actuator control (tac) module (w/ electronic throttle control) (in left rear of engine compt) Throttle actuator control motor (w/ electronic throttle control) (on throttle body) Throttle position sensor (w/ electronic throttle control) (on throttle body) Tp sens 1 Tp sens 2 Under- hood fuse block Underhood fuse block Veh stop fuse 10a 5.3L VIN T, Engine Performance Wiring Diagrams, with Isolated Grounded HO2S Sensors (5 of 5) for Chevrolet Silverado 2002 1500 List of elements for 5.3L VIN T, Engine Performance Wiring Diagrams, with Isolated Grounded HO2S Sensors (5 of 5) for Chevrolet Silverado 2002 1500: 80 (in engine harness) (left rear of engine) g104 (right front of engine) g105 1-2 ss 2-3 ss 4wd low A/c clu A/c req A/c system Anti-lock brake system Anti-lock brake system (speed signal) Cruise control system Cruise eng Ctrl Cyc sw in Delivered torq Egr ctrl Egr gnd Eng1 fuse 10a Evap canp Evap vent Fuel lev Fuel pmp Fuel sig ctrl G103 (left rear of engine) Gen f Gen l Gnd Hot in run & start Iac coil hi Iac coil lo Iat sig Idle air control valve (top of throttle body) Ign Ign ctrl Ign feed Ign1 fuse 10a Ignition coils Instrument cluster systems (speed signal) Instrument panel cluster Left i/p fuse block Maf sig Malfunction indicator lamp Map sig Mil ctrl Nca Nca nca Pc sol hi Pc sol lo Pnk Pnk d Powertrain control module (left front of engine compt) Prnd c Recirc door Recirc sw Red Red c Ref lo Ref low Rpm out S103 S151 S152 S153 S154 S157 Sens gnd Spark plug Starting/charging system Tan Tcc pwm Tcc sol Tft sens sig Tp sig Trans rng a Transfer case shift control module (behind headlight switch) Underhood fuse block Vss high Vss low Vss out
EXTERIOR LIGHTS Back-up Lamps Wiring Diagram for Chevrolet Silverado 2002 1500 List of elements for Back-up Lamps Wiring Diagram for Chevrolet Silverado 2002 1500: 23 (allison trans- mission only) (left side of transmission) back-up lamp switch A trailer connector (heavy duty) A/t B/u lp fuse 25a B10 Back-up alarm C152a G401 (on spare tire hoist bracket) G403 (left frame rail near body mount) Hot in run or start Left back-up lamp M/t Mirrors system Park/neutral position (pnp) switch (left side of transmission) Pnk Rear lamps junction block (front of rear bumber, on crossmember) Reverse switch Right back-up lamp Shift interlock system Trlr b/u fuse 10a Underhood fuse block (left side of eng compt, near battery) Veh b/u fuse 15a Exterior Lamps Wiring Diagram (2 of 2) for Chevrolet Silverado 2002 1500 List of elements for Exterior Lamps Wiring Diagram (2 of 2) for Chevrolet Silverado 2002 1500: 29 (not used) (tail lamp jumper harn) s905 (tail lamp jumper harn) s907 (w/ dual rear wheel) A c3 C1 d C2 a C2 c C2 d C3 d C3 h C4 c C4 d C4 f E c1 G401 (on spare tire hoist bracket) Left license lamp Left marker lamps Left rear park/ turn signal lamp Left tail/ stop- lamp Marker lamps Rear lamps junction block (front of rear bumper, on cross- member) Right license lamp Right rear park/ turn signal lamp Right tail/ stop- lamp S903 (tail lamp jumper harn) S904 S906 Tailgate marker lamp Trailer/Camper Adapter Wiring Diagram for Chevrolet Silverado 2002 1500 List of elements for Trailer/Camper Adapter Wiring Diagram for Chevrolet Silverado 2002 1500: 62 (in camper wiring harn) (pickup) (utilities) 10a Body control module Body relay block (left side of dash) C1 c C1 c11 C1 f2 C10 c1 C198 C2 d10 C2 f10 C3 b3 C3 e1 C3 e5 C5 a C5 b C5 c C5 d C5 f Camper extension Camper in-line connector Camper wiring (pickup only) Chmsl fuse 10a D10 E10 F c1 G203 (upper left kick panel) (pickup) (upper left dash at "a" pillar) (utilities) G401 (on spare tire hoist bracket) Heavy duty trailer wiring Hot at all times Hot in reverse (utilities) hot at run and start (pickup) Hot with back-up lamp switch closed Hot with parklamp relay energized Hot with stoplamp switch depressed Int prk fuse 10a Light duty trailer wiring (pickup only) Nca Pickup only Red S400 (in camper wiring harn) S401 (in camper wiring harn) S402 (in camper wiring harn) S403 (in camper wiring harn) S404 (in camper wiring harn) S405 S406 Splice pack Stud 1 Stud 1 maxi fuse 40a Stud 2 Stud 2 maxi fuse 30a Trailer in-line connector Trl l trn fuse 10a Trl prk fuse 15a Trl r trn fuse 10a Trlr b/u fuse 15a Turn/ hazard switch Underhood fuse block (left side of eng compt, near battery) Utilities only Veh b/u fuse 15a
GROUND DISTRIBUTION Ground Distribution Wiring Diagram (1 of 4) for Chevrolet Silverado 2002 1500 List of elements for Ground Distribution Wiring Diagram (1 of 4) for Chevrolet Silverado 2002 1500: 94 (engine harness) (gas) (others) (canada) 4.3l 4wd A c1 A/c A/c high pressure recirculating switch A/c low pressure switch Automatic transmission control (allison) Auxiliary B8 c2 Battery relay Body relay block (under left side of dash) Brake fluid C d C1 f6 Coil module Compressor clutch Coolant Coolant level switch Cruise control module D12 Data link connector (dlc) Diesel Dual tank Electronic brake control module (ebcm) Engine Engine oil level switch Front axle actuator Front windshield washer fluid pump Fuel heater Fuel injection control module (ficm) Fuel pump & sender assembly Fuel pump relay G100 (on left front body mount) G102 (on right front of engine block) G103 (on right front of engine block) G103 (right rear of engine) G104 (left rear of engine block) G104 (on left front of engine block) G105 (left front of engine block) G106 (right front of engine) G110 (on left front body mount) Gas Glow plug/ intake heater relay assembly Headlamp relay Heated oxygen sensor (ho2s) (bank 1 sensor 1) Heated oxygen sensor (ho2s) (bank 1 sensor 2) Heated oxygen sensor (ho2s) (bank 2 sensor 1) Heated oxygen sensor (ho2s) (bank 2 sensor 2) Ign 1 relay Ignition Ignition coils (left bank) (v8 gas only) Ignition coils (right bank) (v8 gas only) Instrument panel cluster (ipc) Left battery Left daytime running lamp (drl) Left front fog lamp Left horn Left park/ turn signal lamp Level switch Mass air flow (maf) sensor Motor module Nca Oil level switch Other gas Park/ neutral position switch Pnk Power Powertrain control module (pcm) Right battery Right daytime running lamp (drl) Right front fog lamp Right horn Right park/ turn signal lamp S100 (forward lamp harn) S102 s120 (engine harness) (diesel) S103 (engine harness) S156 (eng harn) S157 (engine harn) Secondary fuel pump & sender assembly Starter relay Takeoff (pto) Throttle actuator control module Transfer case shift control module Transfer case shift control switch Underhood fuse block (left side of engine compt) Underhood lamp V8 gas W/atc W/o atc Washer fluid level sensor Water in fuel sensor Windshield wiper Ground Distribution Wiring Diagram (2 of 4) for Chevrolet Silverado 2002 1500 List of elements for Ground Distribution Wiring Diagram (2 of 4) for Chevrolet Silverado 2002 1500: 70 (not used) 4wd A/t shift lock solenoid A12 A16 Acc power outlet Air temperature actuator Ashtray lamp B12 Base Base except crew cab Base except crew cab Bin lamp Blower motor switch Body control module (bcm) Body relay block (under left side of dash) C10 Center high mounted stop/ lamp Cigar lighter Clearance lamps Courtesy lamp relay Crew cab Data link connector (dlc) Dimmer switch Door locks relay Driver door key switch Driver door lock switch Driver mini wedge (door jamb switch) Driver outside rearview mirror Driver window/ door lock switch E13 E16 Emergency vehicle roof lamp relay Fog/ cargo lamp switch Front passenger door lock switch Front passenger mini wedge (door jamb switch) G203 (upper left kick panel) G207 Headlamp dimmer switch Heated memory seat switch Heavy duty Ignition key alarm switch Inflatable restraint ip module switch Instrument panel cluster (ipc) Left i/p fuse block (lower left side of dash) Left roof marker lamp Luxury Mode actuator Nca Outside rearview mirror switch Park position switch Power door lock switch Power take off switch Power window switch Qs4 control module Radio Recirculation door motor Remote control door lock reciever Right roof marker lamp S201 (near roof marker lamps) Sp203 To body relay block (page 4 of 4) Tow/ haul switch Traction control switch Trailer wiring Transfer case shift control module Transfer case shift control switch Turn/ hazard flasher Uplevel Uplevel & crew cab Ground Distribution Wiring Diagram (3 of 4) for Chevrolet Silverado 2002 1500 List of elements for Ground Distribution Wiring Diagram (3 of 4) for Chevrolet Silverado 2002 1500: 79 (base seat) (heavy duty) trailer connector (light duty) trailer wiring (not used) A11 A18 Air temperature actuator Auto a/c Base pickup Blower motor resistor assembly C10 Centennial Crew cab Door lock switch Driver back heated seat element Driver bolster/ lumbar switch Driver cushion heated seat element Driver heated seat module Driver seat adjuster switch Except base crewcab Except base pickup Except crew cab Except crewcab Front Front passenger door lock switch Front passenger heated seat module Front passenger heated seat switch Front passenger lumbar/ bolster switch Front passenger mini wedge (door jamb switch Front passenger mini wedge (door jamb switch) Front passenger seat adjuster switch Front passenger window/ door lock switch Full feature seat G203 (upper left kick panel) G304 (under driver's seat) G305 (on left "b" pillar) G306 (on right "b" pillar) G401 (on spare tire hoist bracket) Hvac control module I/p compart- ment lamp Inflatable restraint sensing & diagnostic module Left back-up lamp Left i/p fuse block (lower right side of dash) Left license lamp Left rear mini wedge (door jamb switch) Left rear tail/ stoplamp Left rear turn signal lamp Memory seat module Mode actuator motor Nca Nca c Passenger back heated seat element Passenger cushion heated seat element Passenger outside rearview mirror Power seat Power window switch Radio Rap 2 relay Rear lamps junction block (front of rear bumper on crossmember) Rear seat audio (rsa) controller Recirculation actuator Right back-up lamp Right license lamp Right rear mini wedge (door jamb switch) Right rear tail/ stoplamp Right rear turn signal lamp Right rear window/ door lock switch Roof beacon ground Roof beacon relay Roof marker lamps Roof window defogger S201 (near roof marker lamps) S307 (seat harness) S308 (seat harness) S309 (seat harness) S314 (memory (seat harness) Seat belt switch Uplevel crewcab Window lock out Ground Distribution Wiring Diagram (4 of 4) for Chevrolet Silverado 2002 1500 List of elements for Ground Distribution Wiring Diagram (4 of 4) for Chevrolet Silverado 2002 1500: 47 (not used) A12 Ashtray lamp Automatic day/night rearview mirror w/ compass Auxiliary power outlet B12 Battery monitor Body relay block (under left side of dash) C10 C11 Centennial Center high mounted stop/ lamp Cigar lighter Courtesy lamp relay Courtesy reading lamp Data link connector (dlc) Dimmer switch Early Emergency vehicle roof lamp relay Except base crew cab F12 Fog/ cargo lamp switch From sp203 (page 2 of 4) G207 Heavy duty Ignition key alarm switch Inside air temperature sensor assembly Late Left vanity mirror Nca Park position switch Reading lamps Remote control door lock reciever Right vanity mirror Roof beacon switch S338 Selectable ride switch Sierra w/ pro Thermo cupholder assembly Tow/ haul switch Traction control switch Trailer wiring Transfer case shift control switch Uplevel Uplevel & crew cab Uplevel crew cab Vehicle interface unit (viu)
HEADLIGHTS Headlight Wiring Diagram for Chevrolet Silverado 2002 1500 List of elements for Headlight Wiring Diagram for Chevrolet Silverado 2002 1500: 65 (gasoline) (diesel) (right front of engine) A11 Al sens ref Al sens sig Ambient light sensor (on top center of dash) Auto B10 Body control module (bcm) (lower left side of dash) Body relay block (under left side of dash) Brake sw sig C1 b4 C1 d3 C1 f7 C2 f7 Daytime running lamps (drl) relay Drl fuse 10a Drl relay E10 E11 E12 E13 Exterior lamps system (park lamp relay) F2 c1 Flash- to-pass Fog lamp relay Fog lamp switch Fog lp relay Fog lp sw Fog lps fuse 15a Ftp in G100 (on left radiator support) G105 g106 G203 Head Headlamp dimmer switch Headlamp relay High High beam Hot at all times Hot in run or start Igne fuse 10a Left daytime running lamp Left fog lamp Left high beam headlamp Left low beam headlamp Low Lt hdlp fuse 15a Nca On indicator Park Park brake switch (park brake assembly) Pickups Right daytime running lamp Right fog lamp Right high beam headlamp Right low beam headlamp Rt hdlp fuse 15a S100 S101 S102 s120 Splice pack sp203 (left side of dash) Tbc fuse 10a Underhood fuse block (left side of engine compt) Utilities
HORN Horn Wiring Diagram for Chevrolet Silverado 2002 1500 List of elements for Horn Wiring Diagram for Chevrolet Silverado 2002 1500: 14 (left side of engine compartment) A11 C1 body control module (in center console) G100 (left radiator support bracket) Horn fuse 15a Horn relay Horn switch Hot at all times Left horn (left side of radiator support) Nca Right horn (right side of radiator support) S101 S10o Underhood fuse block
INSTRUMENT CLUSTER Driver Information Center Wiring Diagram for Chevrolet Silverado 2002 1500 List of elements for Driver Information Center Wiring Diagram for Chevrolet Silverado 2002 1500: 31 (diesel) (gas) Battery Body junction block Body relay block Body relay block (under left side) Class 2 data Data link connector (below steering column) Driver information center G103 (right rear of engine) G105 (left front of eng block) Ground Hot at all times Hot in run and start Hot in run, start or w/ rap energized Ign 1 fuse 10a Ign 1 volt Instrument panel cluster Interior lights system Lamp voltage Left i/p fuse block (on lower left side of dash) Pnk Powertrain control module (pcm) (on left front of engine compt) Radio fuse 10a Rap volt Rdo 1 fuse 10a Sp205 (behind headlamp switch) Underhood fuse block (on left side of engine compt) Underhood junction block Vss Vss out Instrument Cluster Wiring Diagram for Chevrolet Silverado 2002 1500 List of elements for Instrument Cluster Wiring Diagram for Chevrolet Silverado 2002 1500: 92 (diesel) (gas) (not used) 4wd ind A10 A11 A12 A4 pnk Abs ind Air bag ind B10 B11 B12 Batt Body control module Body relay block Body relay block (under left side) Body wiring relay block Brake ind C201 Computer data lines system Cruise control module Cruise fuse 10a Cruise ind Data lines Driver information center Eng spd Engine controls system Engine oil pressure sensor Exterior lights system Fuel gauge G100 (on left front body mount) G103 (right rear of engine) G105 (left front of eng block) G203 (upper left dash, at "a" pillar) G203 (upper left kick panel) Gnd High beam ind Hot at all times Hot in off, run or start Hot in run Hot in run and start Hour meter Ign Ign 1 Ign 1 fuse 10a Ign o fuse 10a Igniton 1 Illum pwr Illumination (6 bulbs) Instrument cluster Interior lights system Led dim Left i/p fuse block (on lower left side of dash) Left turn ind Lo washer fluid Logic Low wash Message center Nca Odometer Off/run/ start Oil gauge Oil press Park sw Park switch (part of the park brake assembly) Pnk Powertrain control module (pcm) (on left front of engine compt) Prnd321 Radio Radio fuse 15a Right turn ind S100 Seat belt ind Serial Service engine soon ind Shift ind Sp203 Spare Speedometer Tach out Tachometer Temp gauge Trans temp gauge Trip Underhood fuse block Underhood fuse block (on left side of engine compt) Volts gauge Vss Vss out Wait to start Washer fluid level switch (in washer fluid reservoir)
INTERIOR LIGHTS Courtesy Lamps Wiring Diagram for Chevrolet Silverado 2002 1500 List of elements for Courtesy Lamps Wiring Diagram for Chevrolet Silverado 2002 1500: 46 (diesel) (gas) (not used) A10 A12 B (not used) B1 (not used) B12 Body control module (on lower left side of dash, below steering column) Body relay block (under left side of dash, near left kick panel) C10 C11 C12 C9 c2 Cargo lamp Cargo lamp switch Cargo lp sw Courtesy lamp relay Ctsy lp fuse 15a Ctsy lp rly D (not used) Dome lamp Dome lamp defeat switch Dome lamp switch Dome lp dft Dome lp sw G105 (left front of engine block) G106 (right front of engine block) G203 (upper left kick panel) Headlamp & panel dimmer switch Hot at all times Inadvert rly Inadvertant power relay Lamp request Left i/p courtesy lamp Left i/p fuse block (on lower left side of dash) Left mini wedge (door jamb switch) Lt door jamb Right i/p courtesy lamp Right mini wedge (door jamb switch) Rt dr jamb S102 Sp203 Tan Underhood fuse block (on left side of engine compt, near battery) Underhood off lamp assembly Instrument Illumination Wiring Diagram (1 of 2) for Chevrolet Silverado 2002 1500 List of elements for Instrument Illumination Wiring Diagram (1 of 2) for Chevrolet Silverado 2002 1500: 52 A12 Ashtray lamp Auto B12 Bezel lamp Bin lamp Body control module (on lower left side of dash, below steering column) Body relay block Body relay block (under left side of dash, near kick panel) C10 Cigar lighter Convenience package Dim in Driver heated seat switch Driver power door lock switch Driver window door lock switch Except convenience package Front passenger door lock switch Front passenger heated seat switch Front passenger window switch G200 (upper right kick panel) G203 (upper left kick panel) G305 (on left "b" pillar) G306 (on right "b" pillar) H c4 H c6 Head Headlamp & panel dimmer switch Hot at all times I/p dim Int prk fuse 10a Left i/p fuse block Left i/p fuse block (on lower left side of dash) Left power door lock switch Left power window switch Left rear window switch Outside rearview mirror switch Parade mode Park Park lp rly Park lp sig Park lps fuse 30a Parklamp relay Radio Rear seat audio controller Right i/p fuse block Right rear window switch S302 S304 S306 Sp203 Underhood fuse block (on left side of engine compt, near battery) Instrument Illumination Wiring Diagram (2 of 2) for Chevrolet Silverado 2002 1500 List of elements for Instrument Illumination Wiring Diagram (2 of 2) for Chevrolet Silverado 2002 1500: 39 (6 bulbs) (auto a/c) (man a/c) (man a/c) (auto a/c) (under left side of dash, near kick panel) body relay block A except sierra denali A10 B sierra denali Base Body relay block (under left side of dash, near kick panel) C c10 C2 f12 Cargo/ fog lamp switch Cd player Clock coil spring Driver infor- mation center G103 (right rear of engine) G200 (upper right kick panel) G203 (upper left kick panel) Hvac control module Illum fuse 10a Inflatable restraint i/p module switch Instrument cluster Lamps Left control switch Left i/p fuse block (on lower left side of dash) Nca Power take off switch (if equipped) Radio Rear wheel steering mode select switch (sierra denali) Right control switch Right i/p fuse block (on lower right side of dash) Roof beacon switch S234 Sp203 Traction control switch Transfer case shift control switch Underhood fuse block (on left side of engine compt, near battery) Up level
MEMORY SYSTEMS Memory Seat Wiring Diagram for Chevrolet Silverado 2002 1500 List of elements for Memory Seat Wiring Diagram for Chevrolet Silverado 2002 1500: 77 570a 570b 5v ref A/t shift lock A3 a3 B7 c1 Batt pos volt Btsi fuse 10a D1 c1 Driver seat adjuster switch Driver seat front vertical motor Driver seat front vertical position sensor Driver seat horizontal motor Driver seat horizontal position sensor Driver seat rear vertical motor Driver seat rear vertical position sensor Driver seat recliner motor Driver seat recliner motor position sensor Driver window door lock switch Front vert dn Front vert up Frt dn Frt up Ft vert dn ctrl Ft vert pos sen Ft vert up ctrl G304 (under driver's seat) Ground Hall effect sensor Hor fwd Hor rwd Horiz fwd Horiz fwd ctrl Horiz pos sen Horiz rwd Horiz rwd ctrl Hot at all times Hot in park Ign 3 fuse 10a Ign 3 volt Left i/p fuse block (lower left side of dash) Memory 1 sw Memory 2 sw Memory seat module (underside of driver's seat) Memory set sw Memory/heated seat switch Mir/lock fuse 3a Nca Not used Rcl 1 Rcl 2 Rear dn Rear up Rear vert dn Rear vert up Recl fwd Recl rwd Recline fwd Recline fwd ctrl Recline pos sen Recline rwd Recline rwd ctrl Red Rr vert dn ctrl Rr vert pos sen Rr vert up ctrl S307 S310 S314 S315 S316 Seats circuit breaker 25a Sensor ground Set Shift interlock system Tan Underhood fuse block (at left side of engine compartment, near battery)
POWER DISTRIBUTION Power Distribution Wiring Diagram (3 of 4) for Chevrolet Silverado 2002 1500 List of elements for Power Distribution Wiring Diagram (3 of 4) for Chevrolet Silverado 2002 1500: 87 (diesel) (diesel) (gas) (gas) (not used) (np1) (np8) (on lower left side of dash) left i/p fuse block 4.3l 4wd fuse 15a Air temperature actuator All other gas Auxiliary battery relay B10 Base Blower motor switch (manual) Brake fuse 10a C10 C11 C12 C2 c1 D10 Diesel Driver heated seat switch E10 E12 Ecm 1 fuse 10a ecm prv fuse 15a Electronic brake control module (ebcm) Engine control module (ecm)/ powertrain control module (pcm) Etc fuse 15a (gas) From cruise g From eng 1 fuse (diagram 2 of 4) from ecm b fuse (diagram 1 of 4) From fuse link (diagram 1 of 4) From ign c f Front axle actuator Front passenger heated seat switch Fuel injector 1 Fuel injector 2 Fuel injector 3 Fuel injector 4 Fuel injector 5 Fuel injector 6 Fuel injector 7 Fuel injector 8 Fuel injector control module Fuse (diagram 2 of 4) Fusible link G104 (left rear of engine block) g106 (right front of engine) G114 (left rear of engine) Gas Htr/ a/c fuse 25a Hvac 1 fuse 10a Hvac control module Ign 1 relay Ign 3 fuse 10a Ignition coil Ignition coil 1 Ignition coil 2 Ignition coil 3 Ignition coil 4 Ignition coil 5 Ignition coil 6 Ignition coil 7 Ignition coil 8 Ignition coil module Inj a fuse 15a (gas) Inj b fuse 25a 15a Mega fuse 125a Memory seat module Mode actuator Nca Pnk Rear wheel steering control module Rear wheel steering switch Recirculation actuator Red Right battery Right i/p fuse block (on lower right side of dash) S102 (engine harness) (gas) S104 S120 (engine harness) (diesel) S152 (eng pnk harn) S154 (eng pnk harn) Stoplamp switch Throttle actuator control module Transfer case shift control module Under- hood fuse block (on left side of engine compt) Uplevel Power Distribution Wiring Diagram (4 of 4) for Chevrolet Silverado 2002 1500 List of elements for Power Distribution Wiring Diagram (4 of 4) for Chevrolet Silverado 2002 1500: 59 A10 Base Body Body control module (bcm) C1 b4 C1 c9 C14 C4 k C4 l C6 c (not used) C7 e Clock Coil spring (part of steering assembly) Door lock fuse 20a Door lock relay Door unlock relay Driver door lock switch Driver door unlock relay Driver information center Driver memory seat switch Driver seat adjuster switch Driver window/ door lock switch Except sierra F11 From fuse block (diagram 2 of 4) From rap fuse d (diagram 1 of 4) Front passenger seat adjuster switch Front passenger window/ door lock switch Inline fuse Left full feature seat Left hand control switch Left i/p fuse block (on lower left side of dash) Left power door lock switch Left power seat Left power window/ door lock switch Memory seat switch Mir/ lock fuse 3a Nca Outside rear view mirror switch Pwr wdo cb 25a Radio Rap 1 relay Rap 2 fuse 10a (crew cab) Rap jmpr 30a Rdo 1 fuse 10a Rear seat audio controller Red Relay block (under left side of dash) Right full feature seat Right hand control switch Right i/p junction block Right power seat Seats circuit breaker 25a Sierra denali To rap 2 relay (diagram 1 of 4) Uplevel & 4-door Vehicle interface unit (viu) W/ ye9 W/o ye9
POWER DOOR LOCKS Power Door Lock Wiring Diagram, Base for Chevrolet Silverado 2002 1500 List of elements for Power Door Lock Wiring Diagram, Base for Chevrolet Silverado 2002 1500: 55 (lower right side of i/p) right i/p fuse block 87a A12 All times B11 B12 Battery Body control module (on lower left side of dash, below steering column) Body relay block (near left kick panel) C1 a11 C1 a12 C1 b8 C1 f2 C1 f4 C211 C4 a C4 d C4 m Door lock relay Door unlock relay Dr lk rly Dr lock fuse 20a Dr unlk rly Driver door lock actuator Driver door lock switch Drv dr unlk rly E10 F10 F12 G203 (upper left kick panel) Ground Hot at all times Ign key sig Ignition key alarm switch (part of steering column assembly) Instrument panel cluster Left i/p fuse block (on lower left side of dash) Lock Lock fuse 15a Mir/ lock fuse 3a Nca Passenger door lock actuator Passenger door lock switch Powertrain control module (left front inside of engine compartment) Remote control door lock receiver (behind top center of dash) Serial data Splice pack Srl data Tan Tbc fuse 10a Underhood junction block (on left side of engine compt) Unlock Unlock fuse 15a Unlock jmpr fuse 30a Vss Vss signal Power Door Lock Wiring Diagram, Up Level for Chevrolet Silverado 2002 1500 List of elements for Power Door Lock Wiring Diagram, Up Level for Chevrolet Silverado 2002 1500: 56 (lower right side of i/p) right i/p fuse block 87a A12 B11 B12 Battery Body control module (on lower left side of dash, below steering column) Body relay block (near left kick panel) C1 a11 C1 a12 C1 b8 C1 f2 C1 f4 C11 C211 C4 a C4 d C4 m Door lock relay Door unlock relay Dr lock fuse 20a Driver door lock actuator Driver door unlock relay Driver window/door lock switch E10 F10 F12 G203 (upper left kick panel) Ground Hot at all times Ign key switch Ignition key alarm switch (part of steering column assembly) Instrument panel cluster Left i/p block (on lower left side of dash) Lf dr unlk in Lock Lock fuse 15a Lock in Mir/lock fuse 3a Nca Passenger door lock actuator Passenger window/door lock switch Powertrain control module (left front inside of engine compartment) Remote control door lock receiver (behind top center of dash) Right i/p fuse block (on lower right side of i/p) Serial data Splice pack Srl data Tan Tbc fuse 10a Underhood junction block (on left side of engine compt) Unlock Unlock fuse 15a Unlock in Vss Vss signal
POWER MIRRORS Electrochromic Mirror Wiring Diagram for Chevrolet Silverado 2002 1500 List of elements for Electrochromic Mirror Wiring Diagram for Chevrolet Silverado 2002 1500: 42 (behind left side of dash, at "a" pillar) (w/ onstar) (w/o onstar) (w/o onstar) (w/ onstar) A/t Ambient sensor B/u lp fuse 25a Back-up lamp switch (on left side of trans- mission) Back-up lamp switch (part of park/neutral position switch) (on left side transmission) Body relay block (left kick panel) C/m C1 a11 C1 a4 C1 b10 C1 d8 C1 f2 C2 a9 C2 f C2 f9 C6 a C6 j C6 m Compass Dim fd Dim rtn Driver outside rearview mirror (utility) Electro-chromic G203 Headlight sensor Hot in run or start Ign 1 fuse 10a Inside rearview mirror Left i/p fuse block (on lower left side of dash) M/t Nca Off Outside air temperature sensor (behind center grille) Pnk Selector switch Temp Underhood fuse block (left side of engine compt, near battery) Veh b/u fuse 15a Power Mirror Wiring Diagram for Chevrolet Silverado 2002 1500 List of elements for Power Mirror Wiring Diagram for Chevrolet Silverado 2002 1500: 23 (top left side of i/p, near "a" pillar) C1 m C2 g Defogger system Down Driver outside rearview mirror Driver power window/ door lock switch Fuse block G203 Heating element Hot at all times Interior lights system L c4 Left Left/ right motor Memory systems Mir/ lock fuse 3a Nca Outside rearview mirror switch Passenger outside rearview mirror Right Sp203 Up/ down motor
POWER SEATS 6-Way Power Seat Wiring Diagram for Chevrolet Silverado 2002 1500 List of elements for 6-Way Power Seat Wiring Diagram for Chevrolet Silverado 2002 1500: 29 (pickup) (utility) A (pickup) A (utility) Back Body relay block (under left side of dash) C1 c2 C13 Driver seat adjuster switch Driver seat front vertical motor Driver seat horizontal motor Driver seat rear vertical motor F9 a10 Front dn Front pasenger seat front vertical motor Front passenger seat adjuster switch Front passenger seat horizontal motor Front passenger seat rear vertical motor Front up Fwd G304 (under driver's seat) Hot at all times Left i/p fuse block (on lower left side of dash) Rear dn Rear up Red S307 Seat circuit breaker 25a Tan Heated Seats Wiring Diagram for Chevrolet Silverado 2002 1500 List of elements for Heated Seats Wiring Diagram for Chevrolet Silverado 2002 1500: 42 Battery Body relay block (under left side of dash) D12 Driver back heated seat element Driver cushion heated seat element Driver heated seat assembly (under driver seat) Driver heated seat module Driver heated seat thermistor Driver seat heated switch Driver window/ door lock c1 switch Escalade ext Front passenger heated seat assembly (under passenger seat) G200 (upper right kcik panel) G203 (upper left) kick panel) G304 (under driver's seat) G305 (at left "b" pillar) Gnd Heated seat switch signal Heater on ind Hot at all times Hot in run Ign 3 fuse 10a Illum Interior lights system Left i/p fuse block (on lower left side of dash) Logic Nca Other Passenger back heated seat element Passenger cushion heated seat element Passenger heated seat module Passenger heated seat switch Passenger heated seat thermistor Ptc termistor Right i/p fuse block (on lower right side of dash) Right i/p junction block (lower right c1 side of dash) S309 S314 Seo 2 fuse 30a Solid state Sp203 Underhood fuse block (left side of engine compartment) Lumbar Wiring Diagram for Chevrolet Silverado 2002 1500 List of elements for Lumbar Wiring Diagram for Chevrolet Silverado 2002 1500: 27 (pickup) (utility) B (pickup) B (utility) Body relay block (under left side of dash) C1 b7 C1 c2 C13 Driver lumbar/ bolster switch Driver seat bolster m0tor Driver seat lumbar m0tor F7 a10 G304 (under driver's seat) Hot at all times Left i/p fuse block (on lower left side of dash) Out Pass- enger lumbar/ bolster switch Passenger seat bolster m0tor Passenger seat lumbar m0tor Pnk Power seats circuit S307 S309 S310 S311 Seat circuit breaker 25a Tan Passenger Full Feature Seat Wiring Diagram for Chevrolet Silverado 2002 1500 List of elements for Passenger Full Feature Seat Wiring Diagram for Chevrolet Silverado 2002 1500: 24 A10 Back Body relay block (behind left side of dash) C13 Fr dn Fr up Front passenger seat adjuster switch Front passenger seat front vertical motor Front passenger seat horizontal motor Front passenger seat rear recliner motor Front passenger seat rear vertical motor Fwd G304 (under driver's seat) Hot at all times Left i/p fuse block (on lower left side of dash) Memory systems Power seats lumbar circuit Red Rr dn Rr up S309 S311 Seat circuit breaker 25a Tan
POWER WINDOWS Power Window Wiring Diagram for Chevrolet Silverado 2002 1500 List of elements for Power Window Wiring Diagram for Chevrolet Silverado 2002 1500: 19 Down Driver window motor Driver window/ door lock switch G203 (upper left i/p at "a" pillar) Hot in acc, run, bulb test, start & with rap relay energized Interior lights system Left down Left i/p fuse block (left side of i/p) Left up Passenger window motor Passenger window/ door lock switch Pwr wdo circuit breaker 25a Right down Right i/p fuse block (on lower right side of dash) Right up Splice pack sp203 Tan Wdo dn relay Wdo up relay
RADIO Radio Wiring Diagrams, Base for Chevrolet Silverado 2002 1500 List of elements for Radio Wiring Diagrams, Base for Chevrolet Silverado 2002 1500: 32 Antenna Battery D10 D12 Dimmer G203 (upper left kick panel) Ground Hot at all times Hot with rap relay energized I/p lamp Ignition Interior lights system Left front door speaker Left i/p fuse block (on lower left side of dash) Left rear speaker Lf + Lf - Lr + Lr - Nca Radio Radio fuse 15a Rdo i fuse 10a Rf + Rf - Right front door speaker Right rear speaker Rr + Rr - Sp203 Tan Underhood fuse block (on left side of engine compt) Radio Wiring Diagrams, Up Level with OnStar for Chevrolet Silverado 2002 1500 List of elements for Radio Wiring Diagrams, Up Level with OnStar for Chevrolet Silverado 2002 1500: 57 (data link connector) (in the console harness) Antenna Audio rtn Bare Battery Body junction block (near left kick panel) Body relay block Cd player- remote play- back device Cruise control module Dim sig in Dim sig out Dimmer Drain E&c line G203 (upper left kick panel) Ground Hot at all times Hot with rap relay energized I/p lamp Ignition Instrument cluster Interior lights system Left front door speaker Left i/p fuse block (on lower left side of dash) Left rear door speaker (crew cab) left rear speaker (except crew cab) Lf + Lf - Lr + Lr - Lt input Lt output Nca Pnk Powertrain control module (left front of engine compt) Radio Radio fuse 15a Radio on sig Rdo i fuse 10a Rf + Rf - Right front door speaker Right rear door speaker (crew cab) right rear speaker (except crew cab) Rr + Rr - Rt input Rt output S235 S267 S268 S272 Serial data Sp203 Tan Underhood junction block (on left side of engine compt) Vehicle interface unit (in the right side of i/p near the instrument cluster) Vss signal Radio Wiring Diagrams, Up Level without OnStar for Chevrolet Silverado 2002 1500 List of elements for Radio Wiring Diagrams, Up Level without OnStar for Chevrolet Silverado 2002 1500: 51 Antenna Audio rtn Bare Battery Body junction block (near left kick panel) Body relay block Cd player- remote play- back device Cruise control module Data link connector (on left lower dash below the steering column) Dim sig in Dim sig out Dimmer Drain E&c line G203 (upper left kick panel) Ground Hot at all times Hot with rap relay energized I/p lamp Ignition Instrument cluster Interior lights system Left front door speaker Left i/p fuse block (on lower left side of dash) Left rear door speaker (crew cab) left rear speaker (except crew cab) Lf + Lf - Lr + Lr - Lt input Lt output Nca Pnk Powertrain control module (left front of engine compt) Radio Radio fuse 15a Radio on sig Rdo i fuse 10a Rf + Rf - Right front door speaker Right rear door speaker (crew cab) right rear speaker (except crew cab) Rr + Rr - Rt input Rt output Serial data Sp203 Tan Underhood junction block (on left side of engine compt) Vss signal
SHIFT INTERLOCKS Shift Interlock Wiring Diagram for Chevrolet Silverado 2002 1500 List of elements for Shift Interlock Wiring Diagram for Chevrolet Silverado 2002 1500: 15 (upper left kick panel) A/t shift lock control solenoid (on steering column) A16 A17 B/u lps fuse 25a Btsi fuse 10a G203 Hot in run or start Memory systems Nca Park/ neutral position switch (left side of transmission) Pnk Splice pack Stoplamp switch (top of brake pedal) Underhood fuse block
STARTING/CHARGING Charging Wiring Diagram for Chevrolet Silverado 2002 1500 List of elements for Charging Wiring Diagram for Chevrolet Silverado 2002 1500: 27 (not used) (on left front side of engine) battery cable junction block (w/ dual generator) Battery Body relay block (under left side of dash) Charge indicator control Computer data lines G100 (on left front body mount) G105 (left front of engine block) Generator (w/o dual generator) left generator (w/ dual generator) Generator field duty cycle signal Hot in run & start Ign 1 fuse 10a Instrument panel cluster Left battery Left i/p fuse block (on lower left side of dash) Message center Pnk Power distribution system Powertrain control module (pcm) or engine control module (ecm) (on left front of engine compartment) Red Right generator (w/ dual generator) Serial data class 2 Solid state Splice pack (sp205) (on left side of dash behind headlamp switch) Starter solenoid Voltmeter Starting Wiring Diagram for Chevrolet Silverado 2002 1500 List of elements for Starting Wiring Diagram for Chevrolet Silverado 2002 1500: 34 (right front of engine) g106 A/t Acc Battery cable junction block (on left front side of engine) Body relay block (under left side of dash) C10 Clutch start switch (on top of clutch pedal bracket) Crank fuse 10a D11 D12 F10 F11 G100 (on left front body mount) G105 (left front of engine block) Ign a fuse 40a Ign c fuse 20a Ignition switch Left battery Left i/p fuse block (on lower left side of dash) Lock M/t Off Park/neutral position switch (on left side of transmission) Power distribution system Red Run S102 Start Starter motor Starter relay Starter solenoid Starting/ charging system (charging circuit) (generator left) Starting/ charging system (charging circuit) (generator right) (diesel dual generator) Underhood fuse block (on left side of engine compt)
SUPPLEMENTAL RESTRAINTS Supplemental Restraint Wiring Diagram for Chevrolet Silverado 2002 1500 List of elements for Supplemental Restraint Wiring Diagram for Chevrolet Silverado 2002 1500: 42 (under driver seat) g304 A10 A11 A12 A13 A14 A15 A16 A17 A18 Air bag fuse 15a Air bag indicator Class 2 serial data Data link connector (dlc) (partial) (under left side of dash, below steering column) Disable signal Fuse block (on lower left side of dash) G203 Ground High control Hot in run & start Ign 1 fuse 10a Ignition Indicator control Inflatable restraint front end discriminating sensor (on underside of radiator support) Inflatable restraint i/p module disable switch Inflatable restraint ip module Inflatable restraint sensing & diagnostic module (under driver's seat) Inflatable restraint steering wheel module Inflatable restraint steering wheel module coil Instrument panel cluster (ipc) Interior lights system Junction block-body (under left side of dash, near left kick panel) Low control Nca Off Pnk Sensor ground Sensor signal Shorting bar Solid state Splice pack 205 (sp205) (on left side of dash, behind headlamp switch) Splice pack sp203 (sp203) (on top left side of dash, near "a" pillar)
TRANSMISSION
4.3L 4.3L VIN W, A/T Wiring Diagram, 4L60-E for Chevrolet Silverado 2002 1500 List of elements for 4.3L VIN W, A/T Wiring Diagram, 4L60-E for Chevrolet Silverado 2002 1500: 82 (not used) a (right rear of engine block) g103 +5v 1-2 shift solenoid 1-2 ss 2-3 shift solenoid 2-3 ss 3-2 shift solenoid 3-2 ss 4wd circuit (transfer case & front axle switch) 4wd low A/t fluid pressure manual valve position switch A12 Abs system Automatic transmission (4l60-e) Body control module (lower left side of dash, below steering column) Body relay block (under c1 Brake fuse 10a Brk sw C11 Cls 2 data D3, d2 D4, d2 Data link connector (under left side of dash) Ecm1 fuse 10a Ecmb fuse 20a Ect sig Engine coolant temperature sensor (rear of left cylinder head) Fluid temp sensor Frt axle sw G103 (right rear of engine block) Gnd Hot at all times Hot in run Hot in run & start Hot in run, bulb test & start Ign Ign0 fuse 10a Ign1 fuse 10a Instrument cluster Instrument panel cluster (ipc) Left end of dash) Left i/p fuse block (lower left side of dash) Lo ref Malfunction indicator lamp Mil ctrl Park/neutral position switch (left side of transmission) Pc sol hi Pc sol lo Pnk Powertrain control module (left front of engine compt) Press ctrl solenoid Prnd a Prnd b Prnd c Prnd p Range b Range c Red Red a Rev, lo S103 Sens gnd Splice pack sp205 (left side of dash) Stoplight switch (top of brake pedal bracket) Tan Tcc pwm Tcc pwm solenoid Tcc sol Tcc solenoid Tft sens sig Throttle position sensor (on throttle body assy) Tp sig Trans rng a Underhood fuse block (left side of engine c2 compt, near the battery) Underhood fuse block (left side of engine compt, near battery) Vehicle speed sensor (2wd: left rear of transmission) (4wd: left side of transfer case) Vss adapter (4wd) (left side of trans) Vss hi Vss lo W/ traction assist W/o traction assist 4.3L VIN X, A/T Wiring Diagram, 4L60-E for Chevrolet Silverado 2002 1500 List of elements for 4.3L VIN X, A/T Wiring Diagram, 4L60-E for Chevrolet Silverado 2002 1500: 82 (not used) a (right rear of engine block) g103 +5v 1-2 shift solenoid 1-2 ss 2-3 shift solenoid 2-3 ss 3-2 shift solenoid 3-2 ss 4wd circuit (transfer case & front axle switch) 4wd low A/t fluid pressure manual valve position switch A12 Abs system Automatic transmission (4l60-e) Body control module (lower left side of dash, below steering column) Body relay block (under c1 Brake fuse 10a Brk sw C11 Cls 2 data D3, d2 D4, d2 Data link connector (under left side of dash) Ecm1 fuse 10a Ecmb fuse 20a Ect sig Engine coolant temperature sensor (rear of left cylinder head) Fluid temp sensor Frt axle sw G103 (right rear of engine block) Gnd Hot at all times Hot in run Hot in run & start Hot in run, bulb test & start Ign Ign0 fuse 10a Ign1 fuse 10a Instrument cluster Instrument panel cluster (ipc) Left end of dash) Left i/p fuse block (lower left side of dash) Lo ref Malfunction indicator lamp Mil ctrl Park/neutral position switch (left side of transmission) Pc sol hi Pc sol lo Pnk Powertrain control module (left front of engine compt) Press ctrl solenoid Prnd a Prnd b Prnd c Prnd p Range b Range c Red Red a Rev, lo S103 Sens gnd Splice pack sp205 (left side of dash) Stoplight switch (top of brake pedal bracket) Tan Tcc pwm Tcc pwm solenoid Tcc sol Tcc solenoid Tft sens sig Throttle position sensor (on throttle body assy) Tp sig Trans rng a Underhood fuse block (left side of engine c2 compt, near the battery) Underhood fuse block (left side of engine compt, near battery) Vehicle speed sensor (2wd: left rear of transmission) (4wd: left side of transfer case) Vss adapter (4wd) (left side of trans) Vss hi Vss lo W/ traction assist W/o traction assist Transfer Case Wiring Diagram, 2-Speed Automatic for Chevrolet Silverado 2002 1500 List of elements for Transfer Case Wiring Diagram, 2-Speed Automatic for Chevrolet Silverado 2002 1500: 81 (left front of engine compt) powertrain control module (on left front body mount) g110 (under left side of dash) data link connector +8v ref +8v ref out 2-hi ind 4-hi ind 4-lo ind 4wd fuse 15a 4wd ind lamp 4wd sw (lo) 4wd sw sig 4wd whl lock Atc fuse 20a Auto Auto 4wd Auxiliary battery relay Awd ind Body relay block (under c1 Brake control Channel-a Channel-b Channel-c Channel-p Class ii data Ctrl E10 E11 E12 E13 E14 E15 E16 Encoder logic Encoder motor Encoder rtn F10 F11 F12 F13 F14 F15 F16 Front axle actuator Front prop- shaft speed sensor Ft axle ctrl Ft shaft rtn Ft shaft sig G110 (on left front body mount) G203 (upper left kick panel) Gnd Hot at all times Hot in run Hot in run & start Ign 3 (run) Ign1 fuse 10a Illumination lamp (2) Instrument panel cluster Interior lights system Left i/p fuse block (lower left side of dash) Left side of dash) Lock sol out Logic Module gnd Motor (ccw) Motor (cw) Nca Neutral ind Pnk Rear prop- shaft speed sensor Red Rr shaft rtn Rr shaft sig Shift motor Solid state Splice pack sp203 Splice pack sp205 (left side of dash) Tan Transfer case shift control module (behind headlamp switch) Transfer case shift control switch Underhood fuse block (left side of engine compt, near battery) Transfer Case Wiring Diagram, 2-Speed Manual for Chevrolet Silverado 2002 1500 List of elements for Transfer Case Wiring Diagram, 2-Speed Manual for Chevrolet Silverado 2002 1500: 27 (w/ allison transmission) 4wd fuse 15a 4wd indicator lamp A4 c1 Auxiliary battery relay Body relay block (under left side of dash) C9 c1 D2 c1 D8 c1 Data link connector (under left side of dash) Dsl(ecm) gas (pcm) Electronic brake control module (on left side of inner frame) Front axle actuator G110 (on left front body mount) Hot in run Hot in run & start Ign1 fuse 10a Instrument panel cluster Left i/p fuse block (lower left side of dash) Logic Pnk Powertrain control module (gas engines) or engine control module (diesel) (left front of engine compt) S165 (in engine harness) Splice pack sp205 (left side of dash) Transfer case shift switch (left front of transfer case) Transmission control module (w/ allison trans) (left front of engine compt) Underhood fuse block (left side of engine compt, near battery)
4.8L 4.8L VIN V, A/T Wiring Diagram, 4L60-E for Chevrolet Silverado 2002 1500 List of elements for 4.8L VIN V, A/T Wiring Diagram, 4L60-E for Chevrolet Silverado 2002 1500: 86 (in engine harness) (not used) a (right rear of engine block) g103 +5v 1-2 shift solenoid 1-2 ss 2-3 shift solenoid 2-3 ss 3-2 shift solenoid 3-2 ss 4wd circuit (transfer case & front axle switch) 4wd low A/t fluid pressure manual valve position switch A12 Abs system Automatic transmission (4l60-e) Body control module (lower left side of dash, below steering column) Body relay block (under c1 Brake fuse 10a Brk sw C11 Cls 2 data D3, d2 D4, d2 Data link connector (under left side of dash) Ecm1 fuse 10a Ecmb fuse 20a Ect sig Engine coolant temperature sensor (front of left cylinder head) Except light duty w/ delphi ho2s Fluid temp sensor Frt axle sw G103 (right rear of engine block) Gnd Hot at all times Hot in run Hot in run & start Hot in run, bulb test & start Ign Ign0 fuse 10a Ign1 fuse 10a Instrument cluster Instrument panel cluster (ipc) Left end of dash) Left i/p fuse block (lower left side of dash) Light duty w/ delphi ho2s Lo ref Malfunction indicator lamp Mil ctrl Park/neutral position switch (left side of transmission) Pc sol hi Pc sol lo Pnk Powertrain control module (left front of engine compt) Press ctrl solenoid Prnd a Prnd b Prnd c Prnd p Range b Range c Red Red a Rev, lo S103 S113 Sens gnd Splice pack sp205 (left side of dash) Stoplight switch (top of brake pedal bracket) Tan Tcc pwm Tcc pwm solenoid Tcc sol Tcc solenoid Tft sens sig Throttle position sensor (on throttle body assy) Tp sig Trans rng a Underhood fuse block (left side of engine c2 compt, near the battery) Underhood fuse block (left side of engine compt, near battery) Vehicle speed sensor (2wd: left rear of transmission) (4wd: left side of transfer case) Vss adapter (4wd) (left side of trans) Vss hi Vss lo W/ traction assist W/o traction assist Transfer Case Wiring Diagram, 2-Speed Automatic for Chevrolet Silverado 2002 1500 List of elements for Transfer Case Wiring Diagram, 2-Speed Automatic for Chevrolet Silverado 2002 1500: 81 (left front of engine compt) powertrain control module (on left front body mount) g110 (under left side of dash) data link connector +8v ref +8v ref out 2-hi ind 4-hi ind 4-lo ind 4wd fuse 15a 4wd ind lamp 4wd sw (lo) 4wd sw sig 4wd whl lock Atc fuse 20a Auto Auto 4wd Auxiliary battery relay Awd ind Body relay block (under c1 Brake control Channel-a Channel-b Channel-c Channel-p Class ii data Ctrl E10 E11 E12 E13 E14 E15 E16 Encoder logic Encoder motor Encoder rtn F10 F11 F12 F13 F14 F15 F16 Front axle actuator Front prop- shaft speed sensor Ft axle ctrl Ft shaft rtn Ft shaft sig G110 (on left front body mount) G203 (upper left kick panel) Gnd Hot at all times Hot in run Hot in run & start Ign 3 (run) Ign1 fuse 10a Illumination lamp (2) Instrument panel cluster Interior lights system Left i/p fuse block (lower left side of dash) Left side of dash) Lock sol out Logic Module gnd Motor (ccw) Motor (cw) Nca Neutral ind Pnk Rear prop- shaft speed sensor Red Rr shaft rtn Rr shaft sig Shift motor Solid state Splice pack sp203 Splice pack sp205 (left side of dash) Tan Transfer case shift control module (behind headlamp switch) Transfer case shift control switch Underhood fuse block (left side of engine compt, near battery) Transfer Case Wiring Diagram, 2-Speed Manual for Chevrolet Silverado 2002 1500 List of elements for Transfer Case Wiring Diagram, 2-Speed Manual for Chevrolet Silverado 2002 1500: 27 (w/ allison transmission) 4wd fuse 15a 4wd indicator lamp A4 c1 Auxiliary battery relay Body relay block (under left side of dash) C9 c1 D2 c1 D8 c1 Data link connector (under left side of dash) Dsl(ecm) gas (pcm) Electronic brake control module (on left side of inner frame) Front axle actuator G110 (on left front body mount) Hot in run Hot in run & start Ign1 fuse 10a Instrument panel cluster Left i/p fuse block (lower left side of dash) Logic Pnk Powertrain control module (gas engines) or engine control module (diesel) (left front of engine compt) S165 (in engine harness) Splice pack sp205 (left side of dash) Transfer case shift switch (left front of transfer case) Transmission control module (w/ allison trans) (left front of engine compt) Underhood fuse block (left side of engine compt, near battery)
5.3L 5.3L VIN T, A/T Wiring Diagram, 4L60-E for Chevrolet Silverado 2002 1500 List of elements for 5.3L VIN T, A/T Wiring Diagram, 4L60-E for Chevrolet Silverado 2002 1500: 86 (in engine harness) (not used) a (right rear of engine block) g103 +5v 1-2 shift solenoid 1-2 ss 2-3 shift solenoid 2-3 ss 3-2 shift solenoid 3-2 ss 4wd circuit (transfer case & front axle switch) 4wd low A/t fluid pressure manual valve position switch A12 Abs system Automatic transmission (4l60-e) Body control module (lower left side of dash, below steering column) Body relay block (under c1 Brake fuse 10a Brk sw C11 Cls 2 data D3, d2 D4, d2 Data link connector (under left side of dash) Ecm1 fuse 10a Ecmb fuse 20a Ect sig Engine coolant temperature sensor (front of left cylinder head) Except light duty w/ delphi ho2s Fluid temp sensor Frt axle sw G103 (right rear of engine block) Gnd Hot at all times Hot in run Hot in run & start Hot in run, bulb test & start Ign Ign0 fuse 10a Ign1 fuse 10a Instrument cluster Instrument panel cluster (ipc) Left end of dash) Left i/p fuse block (lower left side of dash) Light duty w/ delphi ho2s Lo ref Malfunction indicator lamp Mil ctrl Park/neutral position switch (left side of transmission) Pc sol hi Pc sol lo Pnk Powertrain control module (left front of engine compt) Press ctrl solenoid Prnd a Prnd b Prnd c Prnd p Range b Range c Red Red a Rev, lo S103 S113 Sens gnd Splice pack sp205 (left side of dash) Stoplight switch (top of brake pedal bracket) Tan Tcc pwm Tcc pwm solenoid Tcc sol Tcc solenoid Tft sens sig Throttle position sensor (on throttle body assy) Tp sig Trans rng a Underhood fuse block (left side of engine c2 compt, near the battery) Underhood fuse block (left side of engine compt, near battery) Vehicle speed sensor (2wd: left rear of transmission) (4wd: left side of transfer case) Vss adapter (4wd) (left side of trans) Vss hi Vss lo W/ traction assist W/o traction assist Transfer Case Wiring Diagram, 2-Speed Automatic for Chevrolet Silverado 2002 1500 List of elements for Transfer Case Wiring Diagram, 2-Speed Automatic for Chevrolet Silverado 2002 1500: 81 (left front of engine compt) powertrain control module (on left front body mount) g110 (under left side of dash) data link connector +8v ref +8v ref out 2-hi ind 4-hi ind 4-lo ind 4wd fuse 15a 4wd ind lamp 4wd sw (lo) 4wd sw sig 4wd whl lock Atc fuse 20a Auto Auto 4wd Auxiliary battery relay Awd ind Body relay block (under c1 Brake control Channel-a Channel-b Channel-c Channel-p Class ii data Ctrl E10 E11 E12 E13 E14 E15 E16 Encoder logic Encoder motor Encoder rtn F10 F11 F12 F13 F14 F15 F16 Front axle actuator Front prop- shaft speed sensor Ft axle ctrl Ft shaft rtn Ft shaft sig G110 (on left front body mount) G203 (upper left kick panel) Gnd Hot at all times Hot in run Hot in run & start Ign 3 (run) Ign1 fuse 10a Illumination lamp (2) Instrument panel cluster Interior lights system Left i/p fuse block (lower left side of dash) Left side of dash) Lock sol out Logic Module gnd Motor (ccw) Motor (cw) Nca Neutral ind Pnk Rear prop- shaft speed sensor Red Rr shaft rtn Rr shaft sig Shift motor Solid state Splice pack sp203 Splice pack sp205 (left side of dash) Tan Transfer case shift control module (behind headlamp switch) Transfer case shift control switch Underhood fuse block (left side of engine compt, near battery) Transfer Case Wiring Diagram, 2-Speed Manual for Chevrolet Silverado 2002 1500 List of elements for Transfer Case Wiring Diagram, 2-Speed Manual for Chevrolet Silverado 2002 1500: 27 (w/ allison transmission) 4wd fuse 15a 4wd indicator lamp A4 c1 Auxiliary battery relay Body relay block (under left side of dash) C9 c1 D2 c1 D8 c1 Data link connector (under left side of dash) Dsl(ecm) gas (pcm) Electronic brake control module (on left side of inner frame) Front axle actuator G110 (on left front body mount) Hot in run Hot in run & start Ign1 fuse 10a Instrument panel cluster Left i/p fuse block (lower left side of dash) Logic Pnk Powertrain control module (gas engines) or engine control module (diesel) (left front of engine compt) S165 (in engine harness) Splice pack sp205 (left side of dash) Transfer case shift switch (left front of transfer case) Transmission control module (w/ allison trans) (left front of engine compt) Underhood fuse block (left side of engine compt, near battery)
WARNING SYSTEMS Warning System Wiring Diagrams for Chevrolet Silverado 2002 1500 List of elements for Warning System Wiring Diagrams for Chevrolet Silverado 2002 1500: 58 (on lower left side of dash, below steering column) body control module A11 A12 B10 B11 Base Battery Body relay block Body relay block (left side of dash, near kick panel) C1 f2 C1 m C10 C11 Cruise fuse 10a Door jamb sw in Driver mini wedge switch Driver power window/ door lock switch Exterior lights F10 Fuse block G203 (upper left kick panel) G304 (under driver's seat) Ground Hdlmp rly cntrl Headlamp switch Hot at all times Hot in run Hot in run or start Hot with park lights on Ign 1 fuse 10a Ignition 1 Ignition 3 Ignition key alarm switch Instrument cluster Instrument panel cluster (ipc) Int prk fuse 10a Key in ign Left i/p fuse block Left turn input Logic Nca Park brake sw Park brake switch Park lights in Pnk Powertrain control module (pcm) (left front of engine compartment) Right turn input Seat belt ind Seat belt input Seat belt switch (on driver's seat belt buckle) Serial data Sp203 Sp205 (left side of dash) Tan Tbc fuse 10a Turn signal/ mulitfunction switch Underhood fuse block Uplevel
WIPER/WASHER Wiper/Washer Wiring Diagram for Chevrolet Silverado 2002 1500 List of elements for Wiper/Washer Wiring Diagram for Chevrolet Silverado 2002 1500: 25 (on left front body mount) g100 (pick-up) (left rear of engine block) g106 (right front of engine block) g105 (utility) High Hot in acc & run Left i/p fuse block (on lower left side of dash) Lo pulse Mist Mux 1 Mux 2 Nca Off Pnk Pulse Red S100 S102 Underhood fuse block (at left side of engine compartment, near battery) W/w pmp fuse 15a Wash Windshield washer fluid pump (in washer fluid reservoir) Windshield wiper motor module (on firewall) Windshield wiper/ washer switch Ws wiper fuse 25a
