Chevrolet Chevy Express G2500 (1996-2012) tan/wht Wiring diagrams

A/C FUSE 32 A/C RELAY 54 AUXILIARY 2 FUSE 33 REAR DOOR LKS FUSE 5 AUXILIARY RELAY 24 CAN VENT FUSE 34 CARGO UNLK RELAY 27 COMPOSITE+ DK GRN/WHT WIRE DOOR LKS FUSE 15 DOOR LKS RELAY 30 DRV LKS FUSE 7 HTD MIR/DEFOG FUSE 12 DRV UNLK RELAY 28 EVAPORATIVE EMISSIONS (EVAP) CANISTER VENT SOLENOID FROM UNDERHOOD FUSE BLOCK (HDLP HI BEAM RELAY) (DIAGRAM 2 OF 6) FROM UNDERHOOD FUSE BLOCK (MEGA FUSE 65) (DIAGRAM 1 OF 6) FROM UNDERHOOD FUSE BLOCK (PWR SEAT CIRCUIT BREAKER 60) (DIAGRAM 1 OF 6) FUEL PUMP FUSE 12 FUEL PUMP RELAY 57 HDLP HI BEAM RELAY 56 HDLP LO BEAM RELAY 58 HORN FUSE 15 HORN RELAY 59 IGN A FUSE 49 IGN B FUSE 52 LEFT HEADLAMP LEFT HI BEAM FUSE 44 LEFT HIGH BEAM HEADLAMP LEFT LO BEAM FUSE 43 LEFT LOW BEAM HEADLAMP LT GRN/BLK WIRE PASS UNLK RELAY 31 RED/BLK WIRE RED/WHT WIRE RIGHT HEADLAMP RIGHT HI BEAM FUSE 45 RIGHT HIGH BEAM HEADLAMP RIGHT LO BEAM FUSE 42 RIGHT LOW BEAM HEADLAMP RR DEFOG RELAY 25 SEALED SPARE FUSE 33 SPARE RELAY 55 SPARE RELAY 62 STARTER RELAY 61 TAN/WHT WIRE TO BODY FUSE BLOCK (PARK LP RELAY) (DIAGRAM 3 OF 6) TO IGNITION SWITCH (DIAGRAM 3 OF 6) TO UNDERHOOD FUSE BLOCK (IGN A FUSE 49) (DIAGRAM 2 OF 6) WSW FUSE 41 WSW RELAY 53 YEL WIRE

A/C FUSE 32 A/C RELAY 54 AUXILIARY 2 FUSE 33 REAR DOOR LKS FUSE 5 AUXILIARY RELAY 24 CAN VENT FUSE 34 CARGO UNLK RELAY 27 COMPOSITE+ DK GRN/WHT WIRE DOOR LKS FUSE 15 DOOR LKS RELAY 30 DRV LKS FUSE 7 HTD MIR/DEFOG FUSE 12 DRV UNLK RELAY 28 EVAPORATIVE EMISSIONS (EVAP) CANISTER VENT SOLENOID FROM UNDERHOOD FUSE BLOCK (HDLP HI BEAM RELAY) (DIAGRAM 2 OF 6) FROM UNDERHOOD FUSE BLOCK (MEGA FUSE 65) (DIAGRAM 1 OF 6) FROM UNDERHOOD FUSE BLOCK (PWR SEAT CIRCUIT BREAKER 60) (DIAGRAM 1 OF 6) FUEL PUMP FUSE 12 FUEL PUMP RELAY 57 HDLP HI BEAM RELAY 56 HDLP LO BEAM RELAY 58 HORN FUSE 15 HORN RELAY 59 IGN A FUSE 49 IGN B FUSE 52 LEFT HEADLAMP LEFT HI BEAM FUSE 44 LEFT HIGH BEAM HEADLAMP LEFT LO BEAM FUSE 43 LEFT LOW BEAM HEADLAMP LT GRN/BLK WIRE PASS UNLK RELAY 31 RED/BLK WIRE RED/WHT WIRE RIGHT HEADLAMP RIGHT HI BEAM FUSE 45 RIGHT HIGH BEAM HEADLAMP RIGHT LO BEAM FUSE 42 RIGHT LOW BEAM HEADLAMP RR DEFOG RELAY 25 SEALED SPARE FUSE 33 SPARE RELAY 55 SPARE RELAY 62 STARTER RELAY 61 TAN/WHT WIRE TO BODY FUSE BLOCK (PARK LP RELAY) (DIAGRAM 3 OF 6) TO IGNITION SWITCH (DIAGRAM 3 OF 6) TO UNDERHOOD FUSE BLOCK (IGN A FUSE 49) (DIAGRAM 2 OF 6) WSW FUSE 41 WSW RELAY 53 YEL WIRE

A/C FUSE 32 A/C RELAY 54 AUXILIARY 2 FUSE 33 REAR DOOR LKS FUSE 5 AUXILIARY RELAY 24 CAN VENT FUSE 34 CARGO UNLK RELAY 27 COMPOSITE+ DK GRN/WHT WIRE DOOR LKS FUSE 15 DOOR LKS RELAY 30 DRV LKS FUSE 7 HTD MIR/DEFOG FUSE 12 DRV UNLK RELAY 28 EVAPORATIVE EMISSIONS (EVAP) CANISTER VENT SOLENOID FROM UNDERHOOD FUSE BLOCK (HDLP HI BEAM RELAY) (DIAGRAM 2 OF 6) FROM UNDERHOOD FUSE BLOCK (MEGA FUSE 65) (DIAGRAM 1 OF 6) FROM UNDERHOOD FUSE BLOCK (PWR SEAT CIRCUIT BREAKER 60) (DIAGRAM 1 OF 6) FUEL PUMP FUSE 12 FUEL PUMP RELAY 57 HDLP HI BEAM RELAY 56 HDLP LO BEAM RELAY 58 HORN FUSE 15 HORN RELAY 59 IGN A FUSE 49 IGN B FUSE 52 LEFT HEADLAMP LEFT HI BEAM FUSE 44 LEFT HIGH BEAM HEADLAMP LEFT LO BEAM FUSE 43 LEFT LOW BEAM HEADLAMP LT GRN/BLK WIRE PASS UNLK RELAY 31 RED/BLK WIRE RED/WHT WIRE RIGHT HEADLAMP RIGHT HI BEAM FUSE 45 RIGHT HIGH BEAM HEADLAMP RIGHT LO BEAM FUSE 42 RIGHT LOW BEAM HEADLAMP RR DEFOG RELAY 25 SEALED SPARE FUSE 33 SPARE RELAY 55 SPARE RELAY 62 STARTER RELAY 61 TAN/WHT WIRE TO BODY FUSE BLOCK (PARK LP RELAY) (DIAGRAM 3 OF 6) TO IGNITION SWITCH (DIAGRAM 3 OF 6) TO UNDERHOOD FUSE BLOCK (IGN A FUSE 49) (DIAGRAM 2 OF 6) WSW FUSE 41 WSW RELAY 53 YEL WIRE

A/C FUSE 32 A/C RELAY 54 AUXILIARY 2 FUSE 33 REAR DOOR LKS FUSE 5 AUXILIARY RELAY 24 CARGO UNLK RELAY 27 COMPOSITE+ DK GRN/WHT WIRE DOOR LKS FUSE 15 DOOR LKS RELAY 30 DRV LKS FUSE 7 DRV UNLK RELAY 28 E.C.M. FUSE 33 ECM ACT FUSE 63 ECM RELAY 62 ENGINE CONTROL MODULE (ECM) FROM UNDERHOOD FUSE BLOCK (HDLP HI BEAM RELAY) (DIAGRAM 2 OF 6) FROM UNDERHOOD FUSE BLOCK (MEGA FUSE 65) (DIAGRAM 1 OF 6) FROM UNDERHOOD FUSE BLOCK (PWR SEAT CIRCUIT BREAKER 60) (DIAGRAM 1 OF 6) FUEL PUMP FUSE 12 FUEL PUMP RELAY 57 HDLP HI BEAM RELAY 56 HDLP LO BEAM RELAY 58 HORN FUSE 15 HORN RELAY 59 HTD MIR/DEFOG FUSE 12 IGN A FUSE 49 IGN B FUSE 52 LEFT HEADLAMP LEFT HI BEAM FUSE 44 LEFT HIGH BEAM HEADLAMP LEFT LO BEAM FUSE 43 LEFT LOW BEAM HEADLAMP LT GRN/BLK WIRE PASS UNLK RELAY 31 REAR FOG LAMPS FUSE 34 REAR FOG LAMPS RELAY 55 RED/BLK WIRE RED/WHT WIRE RIGHT HEADLAMP RIGHT HI BEAM FUSE 45 RIGHT HIGH BEAM HEADLAMP RIGHT LO BEAM FUSE 42 RIGHT LOW BEAM HEADLAMP RR DEFOG RELAY 25 SEALED STARTER RELAY 61 TAN/WHT WIRE TO BODY FUSE BLOCK (PARK LP RELAY) (DIAGRAM 3 OF 6) TO IGNITION SWITCH (DIAGRAM 3 OF 6) TO UNDERHOOD FUSE BLOCK (IGN A FUSE 49) (DIAGRAM 2 OF 6) WSW FUSE 41 WSW RELAY 53 YEL WIRE

A/T INPUT SHAFT SPEED ACCESSORY VOLT AT ISS HI SIG BLK WIRE BLK/WHT WIRE BODY FUSE BLOCK (UNDER LEFT FRONT SEAT) BRN WIRE COMPUTER DATA LINES SYSTEM DK BLU WIRE DK BLU/WHT WIRE ECM/TCM GLOW PLUG CNTRL MDL IGN 1 FUSE 38 FOH/ECM TCM BATT FUSE 2 GMLAN DATA (+) VSS LOW PC SOL LOW PPL GMLAN DATA (-) 2-3 SHIFT SOL GMLAN DATA (-) GMLAN DATA (+) TR SW P SIG PC SOL HI VSS HI SIG STOP LMP VOLT GRY WIRE HOT AT ALL TIMES HOT IN ACC OR RUN HOT IN ACC RUN AND START HOT IN RUN OR START IGN 0 FUSE 6 LT BLU WIRE LT BLU/WHT WIRE LT GRN WIRE ORG/ WIRE ORG/BLK WIRE P/N PARK/NEUTRAL POSITION (PNP) SWITCH (ON LEFT SIDE OF TRANSMISSION) PNK WIRE PPL REAR HI SIG GMLAN DATA (+) GMLAN DATA (-) RED/WHT WIRE SENSOR (A/T ISS) (LEFT SIDE OF TRANSMISSION STOP LAMP FUSE 7 STOP LAMP SWITCH (ABOVE BRAKE PEDAL) STOP/CHMSL FUSE 8 TAN WIRE TAN/BLK WIRE TAN/WHT WIRE TBC/TCM ACCY FUSE 46 TFP SW B SIG TFT SENS SIG TR SW A SIG LOW REF IGN 1 VOLT BATTERY TFP SW C SIG TR SW B SIG TR SW C SIG TFP SW A SIG PNK WIRE TRANSMISSION CONTROL MODULE (TCM) (LEFT FRONT CORNER OF ENGINE COMPT) UNDERHOOD FUSE BLOCK (ON LEFT SIDE OF ENGINE COMPT) VEHICLE SPEED SENSOR (VSS) (RIGHT SIDE OF TRANSMISSION) WHT WIRE YEL WIRE YEL/BLK WIRE

A/C FUSE 32 A/C RELAY 54 AUXILIARY 2 FUSE 33 REAR DOOR LKS FUSE 5 AUXILIARY RELAY 24 CARGO UNLK RELAY 27 COMPOSITE+ DK GRN/WHT WIRE DOOR LKS FUSE 15 DOOR LKS RELAY 30 DRV LKS FUSE 7 DRV UNLK RELAY 28 E.C.M. FUSE 33 ECM ACT FUSE 63 ECM RELAY 62 ENGINE CONTROL MODULE (ECM) FROM UNDERHOOD FUSE BLOCK (HDLP HI BEAM RELAY) (DIAGRAM 2 OF 6) FROM UNDERHOOD FUSE BLOCK (MEGA FUSE 65) (DIAGRAM 1 OF 6) FROM UNDERHOOD FUSE BLOCK (PWR SEAT CIRCUIT BREAKER 60) (DIAGRAM 1 OF 6) FUEL PUMP FUSE 12 FUEL PUMP RELAY 57 HDLP HI BEAM RELAY 56 HDLP LO BEAM RELAY 58 HORN FUSE 15 HORN RELAY 59 HTD MIR/DEFOG FUSE 12 IGN A FUSE 49 IGN B FUSE 52 LEFT HEADLAMP LEFT HI BEAM FUSE 44 LEFT HIGH BEAM HEADLAMP LEFT LO BEAM FUSE 43 LEFT LOW BEAM HEADLAMP LT GRN/BLK WIRE PASS UNLK RELAY 31 REAR FOG LAMPS FUSE 34 REAR FOG LAMPS RELAY 55 RED/BLK WIRE RED/WHT WIRE RIGHT HEADLAMP RIGHT HI BEAM FUSE 45 RIGHT HIGH BEAM HEADLAMP RIGHT LO BEAM FUSE 42 RIGHT LOW BEAM HEADLAMP RR DEFOG RELAY 25 SEALED STARTER RELAY 61 TAN/WHT WIRE TO BODY FUSE BLOCK (PARK LP RELAY) (DIAGRAM 3 OF 6) TO IGNITION SWITCH (DIAGRAM 3 OF 6) TO UNDERHOOD FUSE BLOCK (IGN A FUSE 49) (DIAGRAM 2 OF 6) WSW FUSE 41 WSW RELAY 53 YEL WIRE

+BC BLK WIRE BODY CONTROL MODULE (BEHIND LOWER RIGHT SIDE OF DASH) CLASS 2 SERIAL DATA COMPOSITE SEALED COMPOSITE+ DIMMER SWITCH SIGNAL DK GRN WIRE FLASH TO PASS SIGNAL FTP FUSIBLE LINK 2 GRY WIRE HDLP- HI BEAM RELAY HDLP- LO BEAM RELAY HEAD HEADLAMP DIMMER SWITCH HEADLAMP ON IND HEADLAMP ON SIGNAL HEADLAMP, PANEL DIMMER SWITCH HIGH BEAM INDICATOR HIGH BEAM RELAY CONTROL HOT AT ALL TIMES IGN CLASS 2 INSTRUMENT PANEL CLUSTER LED DIMMING SIGNAL LEFT HI BEAM FUSE 44 LEFT HIGH BEAM HEADLAMP LEFT HEADLAMP LEFT LO BEAM FUSE 43 LEFT LOW BEAM HEADLAMP LOGIC CLASS 2 SERIAL DATA LOW BEAM RELAY CONTROL LT GRN WIRE OFF PARK PNK HEADLAMP ON IND CONTROL WIRE PNK WIRE PNK/WHT WIRE PPL/WHT WIRE RED WIRE RIGHT HEADLAMP RIGHT HI BEAM FUSE 45 RIGHT HIGH BEAM HEADLAMP RIGHT LO BEAM FUSE 42 RIGHT LOW BEAM HEADLAMP SEALED SPLICE PACK TAN WIRE TAN/WHT WIRE TURN SIGNAL/ MULTIFUNCTION SWITCH UNDERHOOD FUSE BLOCK (ON LEFT SIDE OF ENGINE COMPT) WHT WIRE YEL WIRE

1 2 3 4 5 6 7 8 9 10 11 12 13 14 15 16 LH AUDIO SIG (+) RH AUDIO SIG (+) 1 2 3 4 5 6 7 8 9 10 11 12 13 14 B+ LF MID OUT (+) RF MID OUT (+) 1959 1955 LR MID OUT (-) RR MID OUT (-) 2 1 8 LO REF 658 1782 VOICE SIG DRAIN WIRE HI SPD GMLAN ANTENNA IN BATT POSITIVE VOLT BLK/WHT WIRE BODY CONTROL MODULE (BCM) (BEHIND LOWER RIGHT SIDE OF DASH) BODY FUSE BLOCK (UNDER LEFT FRONT SEAT) BREAKOUT) BRN/WHT WIRE CELLULAR, DIGITAL RADIO ANTENNA CELLULAR/ NAVIGATION ANTENNA COAX COMPUTER DATA LINES SYSTEM CRUISE CONTROL SYSTEM CUTAWAY UPFITTER DIGITAL RADIO RECEIVER (LEFT SIDE OF DASH) DK BLU WIRE DK GRN WIRE DK GRN/WHT WIRE DRAIN WIRE GRY WIRE HOT AT ALL TIMES INFLATABLE RESTRAINT STEERING WHEEL MODULE COIL (AT TOP OF STEERING COLUMN) INFO LED DIMMING CTRL GND LF MID OUT (-) RF MID OUT (-) LEFT CARGO DOOR SPEAKER (IF EQUIPPED) LEFT FRONT SPEAKER LEFT REAR SPEAKER LH AUDIO SIG + RH AUDIO SIG + LO GMLAN SERIAL DATA LO REF LO SERIAL DATA LR MID OUT (+) RR MID OUT (+) LT BLU WIRE LT BLU/BLK WIRE LT GRN WIRE MUTE NCA WIRE ORG/ WIRE PASSENGER/ CARGO PNK WIRE RADIO RADIO ANTENNA RDO/ CHIME FUSE 20 RED/WHT WIRE RIGHT CARGO DOOR SPEAKER (IF EQUIPPED) RIGHT FRONT SPEAKER RIGHT REAR SPEAKER RIGHT STEERING WHEEL CONTROL SWITCH SEEK DOWN SEEK UP SOURCE STEERING WHEEL CTRL TAN WIRE TAN/BLK WIRE TAN/WHT WIRE USB CABLE USB CHARGE USB RECEPTACLE VEHICLE COMMUNICATION INTERFACE MODULE (VICM) (BELOW STEERING COLUMN) VOICE SIG VOL DOWN VOL UP W/ VEHICLE COMMUNICATION SYSTEM W/O VEHICLE COMMUNICATION SYSTEM WHT WIRE YEL WIRE

1 2 PNK WIRE 22 23 24 25 26 PPL BATT POS VOLT BLK WIRE BRN WIRE BRN/WHT WIRE CAMSHAFT POSITION (CMP) SENSOR (ON FRONT OF ENGINE) CKP SENSOR SIG CRANKSHAFT POSITION (CKP) SENSOR (NEXT TO CRANKSHAFT PULLEY) CRUISE CONTROL SYSTEM DK BLU WIRE DK BLU/WHT WIRE DK GRN WIRE EGR 2 SPLY VOLT EGT SENSOR SIG ENGINE CONTROL MODULE (ECM) (LEFT SIDE OF ENGINE COMPT) FRP SENSOR SIG FUEL INJ 1 CTRL FUEL INJ 2 CTRL FUSIBLE LINK 1 FUSIBLE LINK 4 GRY WIRE GRY/BLK WIRE HOT AT ALL TIMES IGN VOLT INTAKE AIR VALVE (ATTACHED TO LEFT SIDE OF INTAKE HOUSING) LOW REF LT BLU WIRE LT BLU/BLK WIRE LT BLU/WHT WIRE LT GRN/BLK WIRE NCA WIRE ORG/ WIRE ORG/BLK WIRE PNK 8 9 10 11 12 13 WIRE PNK PNK WIRE PNK WIRE PNK/BLK WIRE PPL PPL 22 23 24 PPL/WHT WIRE RED WIRE RED/WHT WIRE TAN WIRE TAN/WHT WIRE TCC BRAKE SIG TP SENS 1 SIG WHT WIRE WHT/BLK WIRE YEL WIRE YEL/BLK WIRE

BLK WIRE BRN WIRE DK BLU WIRE DK BLU/WHT WIRE DK GRN/ WHT WIRE DK GRN/WHT WIRE ECM BATT FUSE 54 ECM IGN FUSE 48 ECM PWR/ TRN FUSE 50 ECM PWR/ TRN FUSE 65 FUEL HEATER FUEL HTR FUSE 4 GLOW PLUG MDL FUSE FUEL PUMP FUSE 2 FUEL PUMP RELAY 72 FUEL RAIL PRESSURE (FRP) SENSOR (ON TOP REAR OF ENGINE) GRY WIRE HOT AT ALL TIMES HOT IN RUN OR START LT BLU WIRE LT BLU/BLK WIRE LT GRN/BLK WIRE MAF/ CNSTR VENT FUSE 49 NCA WIRE ORG/ WIRE ORG/BLK WIRE PNK PNK PNK 1 2 3 WIRE PNK PNK WIRE PNK WIRE PNK/BLK WIRE PPL PPL 22 23 24 PWR/ TRN RELAY 76 RED WIRE RED/WHT WIRE TAN WIRE TAN/WHT WIRE UNDERHOOD FUSE BLOCK (ON LEFT SIDE OF ENGINE COMPT) WHT WIRE WHT/BLK WIRE YEL WIRE YEL/BLK WIRE