GMC Envoy II (2001-2009) (behind left of dash, near headlamp switch connector) Wiring diagrams

ACCELERATOR PEDAL POSITION (APP) SENSOR (ABOVE ACCELERATOR PEDAL, ON BRACKET) BLK WIRE BLK/WHT WIRE BRN WIRE CLOSE CRUISE IND DK BLU WIRE DK GRN WIRE GRY WIRE GRY/BLK WIRE GRY/WHT WIRE HOT AT ALL TIMES HOT IN RUN HOT IN RUN OR START HVAC I FUSE 39 IGN IGN E FUSE 22 INSTRUMENT PANEL CLUSTER (IPC) IPC CLASS 2 SERIAL DATA LOGIC LT BLU WIRE LT BLU/BLK WIRE LT GRN/BLK WIRE ON/OFF SWITCH ORG/ WIRE PNK WIRE POWER DISTRIBUTION SYSTEM POWERTRAIN CONTROL MODULE (ON UPPER LEFT SIDE OF ENGINE) PPL PPL 486 1704 PPL CRUISE RELEASE PPL PPL PPL/WHT WIRE REAR FUSE BLOCK (BELOW LEFT REAR SEAT) RES/ACCEL SWITCH SERIAL DATA SET/COAST SWITCH STOP LAMP FUSE 12 STOP LAMP SWITCH (ON BRAKE PEDAL ASSEMBLY) TAN WIRE THROTTLE BODY (FRONT OF INTAKE DUCT) TURN SIGNAL/ MULTIFUNCTION SWITCH UNDERHOOD FUSE BLOCK (ABOVE LEFT FRONT WHEELWELL) VEH STOP FUSE 34 VEHICLE SPEED SENSOR (VSS) (ON LEFT REAR OF TRANSFER CASE) VSS HI VSS LO WHT WIRE WHT/BLK WIRE YEL WIRE

2500 2501 420 53 33 2 SERIAL DATA BUS + SERIAL DATA BUS - CRUISE RELEASE ACCELERATOR PEDAL POSITION (APP) SENSOR (ABOVE ACCELERATOR PEDAL, ON BRACKET) BLK WIRE BLK/WHT WIRE BRN WIRE CLOSE CRUISE IND DK BLU WIRE DK GRN WIRE ENGINE CONTROL MODULE (ECM) (NEAR LOWER LEFT FRONT OF ENGINE) GRY WIRE GRY/BLK WIRE GRY/WHT WIRE HOT AT ALL TIMES HOT IN RUN OR START HOT IN RUN REAR FUSE BLOCK (BELOW LEFT REAR SEAT) HVAC I FUSE 39 IGN IGN E FUSE 22 INSTRUMENT PANEL CLUSTER (IPC) LOGIC LT BLU WIRE LT BLU/BLK WIRE LT GRN/BLK WIRE ON/OFF SWITCH ORG/ WIRE PNK BATT IPC CLASS 2 SERIAL WIRE PNK WIRE POWER DISTRIBUTION SYSTEM PPL PPL CRUISE RELEASE PPL PPL PPL/WHT WIRE RES/ACCEL SWITCH SERIAL DATA SET/COAST SWITCH STOP LAMP FUSE 12 STOP LAMP SWITCH (ON BRAKE PEDAL ASSEMBLY) TAN WIRE TAN/WHT WIRE THROTTLE BODY (FRONT OF INTAKE DUCT) TRANSMISSION CONTROL MODULE (TCM) TURN SIGNAL/ MULTIFUNCTION SWITCH UNDERHOOD FUSE BLOCK (ABOVE LEFT FRONT WHEELWELL) VEH STOP FUSE 34 VEHICLE SPEED SENSOR (VSS) (ON LEFT REAR OF TRANSFER CASE) WHT WIRE WHT/BLK WIRE YEL WIRE

5.3L, 6.0L 4.2L ABS IND. ANTI-THEFT SYSTEM BLK WIRE BLK/WHT WIRE BLU WIRE BODY CONTROL MODULE (BCM) (BENEATH LEFT REAR SEAT, ON REAR FUSE BLOCK) BRAKE IND BRN WIRE DELIVERED TORQUE SIGNAL DK BLU WIRE DK GRN WIRE FLAT WIRE PRK BRK SIG GRN WIRE GRY WIRE HOT AT ALL TIMES INSTRUMENT PANEL CLUSTER IPC/DIC FUSE 24 LOGIC LT BLU (OR DK BLU) WIRE LT BLU WIRE LT GRN WIRE NCA WIRE ORG/ WIRE ORG/BLK WIRE PARK BRAKE SWITCH (ON PARKING BRAKE ASSEMBLY) PHASE PHASE INDEX PULSE POSITION HANDWHEEL PPL REAR FUSE BLOCK (BELOW LEFT REAR SEAT) REQUESTED TORQUE SIGNAL SERIAL DATA STEERING WHEEL SPEED/ POSITION SENSOR (AT BASE OF STEERING COLUMN) TAN WIRE TAN/BLK WIRE TRACTION CONTROL SWITCH UNDERHOOD FUSE BLOCK (ABOVE LEFT FRONT WHEELWELL) VOLTAGE REGULATOR W/ ANTI-THEFT SYSTEM PPL YAW RATE, LATERAL ACCELERATION SENSOR (BELOW FRONT PASSENGER'S SEAT) YEL WIRE

4.2L 5.3L, 6.0L 5 VOLT REF 5.3L, 6.0L 4.2L A/C COMPRESSOR CLUTCH ASSEMBLY A/C FUSE 30 A/C LOW PRESSURE SWITCH (AT RIGHT REAR OF ENGINE COMPT, ON ACCUMULATOR) A/C PRESS SIG A/C REFRIGERANT PRESSURE SENSOR (ON HIGH PRESSURE LINE NEAR A/C COMPRESSOR) A/C RELAY 44 AMBIENT LIGHT SENS AUXILIARY CONSOLE MODE ACTUATOR (UNDER LOWER CONSOLE) AUXILIARY HVAC CONTROL MODULE (UNDER LOWER CONSOLE) BATT CLASS 2 DATA GROUND AUX MODE DR AUX BLWR HI SPD AUX BLWR MED SPD BLK WIRE BODY CONTROL MODULE (BCM) (BENEATH LEFT REAR SEAT, ON REAR FUSE BLOCK) BRN WIRE COMP RLY CNTRL COOLING FAN (FRONT OF ENGINE) DATA LINK CONNECTOR (ON BOTTOM OF LEFT SIDE OF DASH) DK BLU WIRE DK GRN WIRE DK GRN/WHT WIRE ECT SENS SIG FAN FUSE 20 FAN RELAY 45 GRY WIRE HALL SENSOR HIGH SPD MAF HOT AT ALL TIMES HOT IN RUN OR START IGN E FUSE 22 LOW REF LOW REFERENCE LT BLU WIRE LT BLU/BLK WIRE LT GRN WIRE LT SUNLOAD SENS SIG MODE OFF ORG/ WIRE PPL REAR BLOWER MOTOR REAR BLOWER RESISTOR RED WIRE RED/BLK WIRE RT SUNLOAD SENS SIG SERIAL DATA UNDERHOOD FUSE BLOCK (ABOVE LEFT FRONT WHEELWELL) W/ REAR A/C WHT WIRE WHT/BLK WIRE YEL WIRE

1 2 52 50 BUS (+) BUS (-) TR SW P TR SW B 23 46 TR SW C TR SW B TR SW P TR SW A BUS (-) BUS (+) 4.2L 5.3L, 6.0L 4.2L BACKUP FUSE 27 BATTERY B/U LMP VOLT BLK WIRE BLK/WHT WIRE BODY CONTROL MODULE (BCM) (BENEATH LEFT REAR SEAT, ON REAR FUSE BLOCK) COMPUTER DATA LINES SYSTEM DK GRN WIRE GRN WIRE GRY WIRE HOT AT ALL TIMES HOT IN RUN OR START LEFT BACKUP LAMP LT (NOT USED) LT GRN WIRE MIRRORS SYSTEM (AUTOMATIC DAY/ NIGHT MIRROR) NCA WIRE PARK/ NEUTRAL POSITION SWITCH (ON LOWER LEFT SIDE OF TRANSMISSION) PNK WIRE PARK/NEUTRAL POSITION SWITCH (ON LOWER LEFT SIDE OF TRANSMISSION) PNK WIRE REAR FUSE BLOCK (BELOW LEFT REAR SEAT) REAR FUSE BLOCK (BELOW LEFT REAR SEAT) TBC 5 FUSE 32 RIGHT BACKUP LAMP SER DATA SERIAL DATA TAN WIRE TAN/WHT WIRE TR SW A TR SW C TRAILER CONNECTOR TRANSMISSION CONTROL MODULE TRLR B/U FUSE 4 UNDER- HOOD FUSE BLOCK (ON LEFT SIDE OF ENGINE COMPT) WHT WIRE YEL WIRE

4.2L 4.2L 5.3L, 6.0L 5 VOLT REF A/C COMPRESSOR CLUTCH ASSEMBLY A/C FUSE 30 A/C LOW PRESSURE SWITCH (AT RIGHT REAR OF ENGINE COMPT, ON ACCUMULATOR) A/C PRESS SIG A/C RELAY 44 BLK WIRE BLK/WHT WIRE BRN WIRE COMP RLY CNTRL DATA LINK CONNECTOR (ON BOTTOM LEFT SIDE OF DASH) DK BLU WIRE DK GRN WIRE DK GRN/WHT WIRE GRY WIRE HOT AT ALL TIMES HOT IN HOT IN RUN OR START HVAC 1 FUSE 39 HVAC CONTROL MODULE (CENTER OF DASH) HVAC-B FUSE 36 IGN E FUSE 22 LOW REF LT GRN WIRE ORG/ WIRE PPL PPL REAR FUSE BLOCK (BELOW LEFT REAR SEAT) RED/BLK WIRE RUN WIRE SERIAL DATA UNDERHOOD FUSE BLOCK (ABOVE LEFT FRONT WHEELWELL) WHT WIRE

AUXILIARY HVAC CONTROL MODULE (UNDER LOWER CONSOLE) BLK WIRE BLK/WHT WIRE BODY CONTROL MODULE (BCM) (BENEATH LEFT REAR SEAT, ON REAR FUSE BLOCK) BRN WIRE BRN/WHT WIRE CLASS 2 SERIAL DATA DATA LINK CONNECTOR (DLC) (ON BOTTOM LEFT SIDE OF DASH) DIGITAL RADIO RECEIVER (RIGHT SIDE OF DASH, BEHIND GLOVE BOX) DIGITAL VIDEO DISC (DVD) PLAYER DK BLU WIRE DK BLU/WHT WIRE DK GRN WIRE DK GRN/WHT WIRE DRIVER'S DOOR MODULE (DDM) (BELOW DRIVER'S DOOR SWITCH PANEL) DRIVER'S MEMORY SEAT MODULE (BELOW LEFT FRONT SEAT) FRONT PASSENGER DOOR MODULE (FPDM) (BELOW FRONT PASSENGER DOOR SWITCH PANEL) GRY WIRE HIGH SPEED GMLAN SERIAL DATA (+) HIGH SPEED GMLAN SERIAL DATA BUS + HOT AT ALL TIMES HVAC CONTROL MODULE (CENTER OF DASH) INSTRUMENT PANEL CLUSTER (IPC) LIFTGATE MODULE (LGM) (IN CENTER OF LIFTGATE) LT BLU WIRE LT GRN WIRE LT GRN/BLK WIRE LTR FUSE 13 ORG/ WIRE PPL PPL 2 1 RADIO REGULATED VOLTAGE CONTROL MODULE (BEHIND BATTERY) SPLICE PACK TAN WIRE TAN/WHT WIRE TRANSFER CASE SHIFT CONTROL MODULE (BEHIND LOWER LEFT SIDE OF DASH) TRANSMISSION CONTROL MODULE (TCM) (LEFT FRONT OF ENGINE) UNDERHOOD FUSE BLOCK (ON LEFT SIDE OF ENG COMPT) VEHICLE COMMUNICATION INTERFACE MODULE (VCIM) (UNDER RIGHT REAR SEAT) W/ AUTO A/C W/ MEMORY WHT WIRE YEL WIRE YEL/BLK WIRE

308 5463 1348 1317 PK LP SW DRL OVERRIDE IND HEADLAMP ON IND FR FOG LP RLY CNTRL 4 HI 4 LO 5 9 BATT + ILLUM AHL/ DRL DEFEAT INDICATOR REAR FOG LAMP INDICATOR AUTO PARK AUXILIARY HVAC CONTROL MODULE BLK WIRE BODY CONTROL MODULE (BENEATH LEFT REAR SEAT, ON REAR FUSE BLOCK) BRN WIRE BRN/WHT WIRE DATA DEFEAT DRL DK BLU/WHT WIRE DK GRN/WHT WIRE DRIVER DOOR MODULE (BELOW DRIVER'S DOOR SWITCH PANEL) DRIVER MEMORY SEAT SWITCH FLAT WIRE FLAT WIRE FLAT WIRE 1382 1977 FLAT WIRE FLAT WIRE FLAT WIRE FLAT WIRE FRONT FOG LAMP INDICATOR GARAGE DOOR OPENER (IF EQUIPPED) SUNROOF SWITCH (IF EQUIPPED) GRY WIRE GRY/BLK WIRE HEAD HEAD LAMP ON INDICATOR HEADLAMP SWITCH HOT AT ALL TIMES HVAC CONTROL INFLATABLE RESTRAINT STEERING WHEEL MODULE COIL INLINE FUSE INSTRUMENT PANEL CLUSTER TRANSFER CASE SHIFT CONTROL SWITCH LOW REF 5 VOLT REF DIMMING INPUT CLASS 2 SERIAL DATA LOWER LEFT UPPER RIGHT LT GRN WIRE MANUAL A/C AUTOMATIC A/C MODULE (CENTER OF DASH) NCA WIRE ORG/ WIRE ORG/BLK WIRE PNK PPL WIRE PNK WIRE PPL PPL PPL REAR FUSE BLOCK (BELOW LEFT REAR SEAT) REAR WINDOW WIPER/ WASHER SWITCH STEERING WHEEL) TAN WIRE TBC 2 FUSE 7 TBC 5 FUSE 32 TRANSFER CASE SHIFT CONTROL MODULE (BEHIND LOWER LEFT SIDE OF DASH) TRANSFER CASE SHIFT CONTROL SWITCH UNDERHOOD FUSE BLOCK (ABOVE LEFT FRONT WHEELWELL) UPPER LEFT LOWER RIGHT W/ ACTIVE 2 SPEED PUSH BUTTON CONTROL TRANSFER CASE W/ FRONT FOG LAMPS W/ REAR FOG LAMPS W/O WIRING PROVISIONS WHT WIRE YEL WIRE

1 4 6 7 IGN VOLTAGE AUX HVAC ENABLE CNTRL AUX DR MTR CNTRL GROUND 4.2L 5.3L, 6.0L 5 VOLT REF 5.3L, 6.0L 4.2L A/C COMPRESSOR CLUTCH ASSEMBLY A/C FUSE 30 A/C LOW PRESSURE SWITCH (AT RIGHT REAR OF ENGINE COMPT, ON ACCUMULATOR) A/C PRESS SIG A/C REFRIGERANT PRESSURE SENSOR (ON HIGH PRESSURE LINE NEAR A/C COMPRESSOR) A/C RELAY 44 AUXILIARY CONSOLE MODE ACTUATOR (W/ REAR A/C) (UNDER LOWER CONSOLE) AUXILIARY HVAC CONTROL MODULE (UNDER LOWER CONSOLE) BI LVL BLK WIRE BRN WIRE COMP RLY CNTRL COOLING FAN (4.2L: FRONT OF ENGINE) DATA LINK CONNECTOR (ON BOTTOM OF LEFT SIDE OF DASH) DK BLU WIRE DK GRN WIRE DK GRN/WHT WIRE ECT SENS SIG FAN CL CNTRL FAN FUSE 20 FAN RELAY 45 FAN SPD SIG GRY WIRE HALL SENSOR HOT AT ALL TIMES HOT IN RUN OR START IGN E FUSE 22 LO REF FLOOR UPPER LOGIC LOW REF LT GRN WIRE POWER IND SIG PPL PWR IND RED/BLK WIRE SERIAL DATA UNDERHOOD FUSE BLOCK (ABOVE LEFT FRONT WHEELWELL) W/ REAR A/C WHT WIRE WHT/BLK WIRE YEL WIRE

6 8 2 UNLOCK CTRL LOCK CTRL SERIAL DATA BAT POS VOLT BAT POS VOLT GROUND BATT GROUND BLK WIRE BLK/WHT WIRE BODY CONTROL MODULE (BCM) (BENEATH LEFT REAR SEAT, ON REAR FUSE BLOCK) BRN WIRE DDM FUSE 10 DK BLU/WHT WIRE DK GRN WIRE DRIVER DOOR LATCH ASSEMBLY DRIVER DOOR LOCK SWITCH FLAT WIRE FLAT WIRE FLAT WIRE UNLOCK RELAY LOCK RELAY FLAT WIRE LR DOOR AJAR FLAT WIRE RR DOOR AJAR FRONT PASSENGER DOOR MODULE (FPDM) (BELOW FRONT PASSENGER DOOR SWITCH PANEL) GRY WIRE GRY/BLK WIRE HOT AT ALL TIMES LEFT REAR DOOR LATCH ASSEMBLY LIFTGATE LATCH ASSEMBLY LIFTGATE MODULE (LGM) (IN CENTER OF LIFTGATE) LOCK LOCK CTRL LOCK CTRL UNLOCK CTRL LOCK RELAY 18 LOCKS FUSE 21 LOW REF DOOR AJAR LT BLU WIRE LT BLU/BLK WIRE LT DOORS CB 2 LT GRN WIRE LT GRN/BLK WIRE ORG/ WIRE PASSENGER DOOR LATCH ASSEMBLY PASSENGER DOOR LOCK SWITCH PDM FUSE 12 RT DOORS CB 1 POWER REAR FUSE BLOCK (BELOW LEFT REAR FUSE BLOCK (BELOW LEFT REAR SEAT) REAR SEAT) RIGHT REAR DOOR LATCH ASSEMBLY SERIAL DATA TAN WIRE UNLOCK UNLOCK CTRL UNLOCK RELAY 24