GMC Rally G2500 (1985-1995) blk wiring diagrams

blk wiring diagram (241 of 284)

BLK WIRE BLU WIRE BRAKE SWITCH (ON BRAKE PEDAL SUPPORT) BRN WIRE DK BLU WIRE DK GRN WIRE FUSE BLOCK- I/P GRN WIRE HAZARD HAZARD FLASHER (RIGHT SIDE OF STEERING COLUMN) HEAD HEADLIGHT SWITCH HOT AT ALL TIMES HOT IN RUN, BULB TEST OR START I/P DIMMER SWITCH INSTRUMENT CLUSTER LEFT FRONT MARKER LAMP LEFT LICENSE LAMP LEFT TAIL/STOP TURN LAMP LEFT TURN INDICATOR LT BLU WIRE LT GRN WIRE LT LT NORMAL OFF ORG/ WIRE PARK PPL PROVISIONS FOR PARK LAMPS PROVISIONS FOR REAR MARKER LAMPS RIGHT BACKUP LAMP LEFT BACKUP LAMP RIGHT FRONT MARKER LAMP RIGHT FRONT PARK/ TURN LAMP LEFT FRONT PARK/ TURN LAMP RIGHT LICENSE LAMP RIGHT TAIL/STOP/ TURN LAMP RIGHT TURN INDICATOR STOP/ HAZ FUSE TAIL LPS FUSE TURN LEFT TURN RIGHT TURN SIGNAL FLASHER TURN-B/U FUSE TURN/HAZARD SWITCH (LEFT SIDE OF STEERING COLUMN) WHT WIRE YEL WIRE

Go to component -> Exterior light circuit, commercial chassis -> BLK WIRE

blk wiring diagram (242 of 284)

BACKUP LAMP SWITCH (ON STEERING COLUMN) BLK WIRE BLU WIRE BRN WIRE DK BLU WIRE DK GRN WIRE FUSE BLOCK (BEHIND LEFT SIDE OF I/P) G# N/A (IN REAR LAMPS HARNESS) GRN WIRE HAZARD HAZARD FLASHER HEAD HEADLIGHT SWITCH HOT AT ALL TIMES HOT IN RUN OR START INSTRUMENT CLUSTER LEFT BACKUP LAMP RIGHT BACKUP LAMP LEFT FRONT MARKER LAMP LEFT LICENSE LAMP LEFT PARK LAMP LEFT TAIL/STOP TURN LAMP LEFT TURN INDICATOR LT BLU WIRE LT LT NORMAL OFF ORG/ WIRE PARK PPL PROVISIONS FOR CLEARANCE LAMPS PROVISIONS FOR REAR MARKER LAMPS RIGHT FRONT MARKER LAMP RIGHT FRONT PARK/ TURN LAMP LEFT FRONT PARK/ TURN LAMP RIGHT LICENSE LAMP RIGHT PARK LAMP RIGHT TAIL/STOP TURN LAMP RIGHT TURN INDICATOR STOP/ HAZ FUSE STOPLAMP SWITCH (ON BRAKE PEDAL SUPPORT BRACKET) TAIL LPS FUSE TURN LEFT TURN RIGHT TURN SIGNAL FLASHER TURN-B/U FUSE TURN/HAZARD SWITCH (ON MULTI- FUNCTION LEVER) WHT WIRE YEL WIRE

Go to component -> Exterior light circuit, cutaway chassis -> BLK WIRE

blk wiring diagram (243 of 284)

BACKUP LAMP SWITCH (ON STEERING COLUMN) BLK WIRE BLU WIRE BRN WIRE DK BLU WIRE DK GRN WIRE FUSE BLOCK- I/P G# N/A (REAR LAMPS HARNESS) GRN WIRE HAZARD HAZARD FLASHER (TOP LEFT SIDE OF SHIPPING PANEL) HEAD OFF HEADLIGHT SWITCH HOT AT ALL TIMES HOT IN RUN OR START INSTRUMENT CLUSTER LEFT FRONT MARKER LAMP LEFT LICENSE LAMP RIGHT LICENSE LAMP LEFT TAIL/STOP TURN LAMP LEFT TURN INDICATOR LT BLU WIRE LT LT NORMAL ORG/ WIRE PARK PPL PROVISIONS FOR BODY BUILDER ADDED LAMPS PROVISIONS FOR REAR MARKER LAMPS RIGHT BACKUP LAMP LEFT BACKUP LAMP RIGHT FRONT MARKER LAMP RIGHT FRONT PARK/ TURN LAMP LEFT FRONT PARK/ TURN LAMP RIGHT TAIL/STOP TURN LAMP RIGHT TURN INDICATOR STOP/ HAZ FUSE STOPLAMP SWITCH (ON BRAKE PEDAL SUPPORT) TAIL LPS FUSE TURN LEFT TURN RIGHT TURN SIGNAL FLASHER TURN-B/U FUSE TURN/HAZARD SWITCH (UPPER LEFT SIDE OF STEERING COLUMN) WHT WIRE YEL WIRE

Go to component -> Exterior light circuit, motor home chassis -> BLK WIRE

blk wiring diagram (244 of 284)

** (RIGHT FRAME RAIL, NEAR BATTERY) 1995 VFTC AUDIO ALARM MODULE AUTO APPLY PARK BRAKE DATA LINK CONN- ECTOR FUEL PUMP RELAY AUXILIARY COOLING FAN A/C COMPRESSOR CLUTCH AUXILIARY COOLING FAN COOLANT PRESSURE SWITCH BATTERY BLK WIRE BLK/ WHT WIRE BLK/WHT WIRE BRAKE TRANSMISSION SHIFT INTERLOCK SOLENOID BRAKE/ TRANSMISSION SHIFT INTERLOCK RELAY DAYTIME RUNNING LAMPS RELAY CRUISE CONTROL MODULE DAYTIME RUNNING LAMPS MODULE HEADLAMP DIMMER SWITCH FUEL CONTROL MODULE FUEL PUMP I/P CLUSTER LEFT HIGH/LOW BEAM HEADLAMP LEFT HORN LEFT PARK/ TURN SIGNAL LAMP PARK BRAKE SWITCH POWERTRAIN CONTROL MODULE (PCM) PROVISIONS FOR LEFT SIDE MARKER LAMP PROVISIONS FOR RIGHT SIDE MARKER LAMP RIGHT HIGH/LOW BEAM HEADLAMP RIGHT HORN RIGHT PARK/ TURN SIGNAL LAMP STARTER MOTOR RELAY TAN WIRE WATER IN-FUEL SENSOR (DIESEL) ENGINE COOLANT LEVEL SENSOR

Go to component -> Ground distribution circuit, motor home chassis -> BLK WIRE

blk wiring diagram (245 of 284)

BLK WIRE BRN WIRE DAYTIME RUNNING LAMP INDICATOR DAYTIME RUNNING LAMPS MODULE (IN I/P HARNESS) DAYTIME RUNNING LAMPS RELAY (IN I/P HARNESS) DK BLU/WHT WIRE DK GRN/YEL WIRE FUSE BLOCK GRN WIRE HEAD PARK HEADLAMP DIMMER SWITCH HEADLIGHT SWITCH ASSEMBLY HI BEAM INDICATOR HI LO HORN/DM FUSE HOT AT ALL TIMES HOT IN RUN HTR FUSE INSTRUMENT CLUSTER LEFT HEADLAMP ASSEMBLY LT GRN WIRE LT GRN/BLK WIRE OFF OFF HEAD ORG/ WIRE PARK PARK BRAKE WARNING SWITCH (AT PARK BRAKE, UNDER LEFT SIDE OF I/P) PROVISIONS FOR FOG LAMPS RIGHT HEADLAMP ASSEMBLY TAN WIRE TAN/WHT WIRE WHT WIRE YEL WIRE

Go to component -> Headlight circuit, commercial chassis with drl -> BLK WIRE

blk wiring diagram (246 of 284)

1995 VFTC BLK WIRE GRN WIRE HEADLAMP DIMMER SWITCH HI BEAM INDICATOR HI LO HOT AT ALL TIMES LEFT HEADLAMP ASSEMBLY LO HI LIGHT SWITCH LT GRN WIRE LT INSTRUMENT CLUSTER OFF OFF HEAD HEAD PARK PARK RIGHT HEADLAMP ASSEMBLY HI TAN WIRE YEL WIRE

Go to component -> Headlight circuit, commercial chassis without drl -> BLK WIRE

blk wiring diagram (247 of 284)

1 2 PPL 1-2 SHIFT SOLENIOD 2-3 SHIFT SOLENIOD 4.3L 5.7L AND 7.4L B/H CONN BLK WIRE BLK/WHT WIRE BLK/YEL WIRE BRN WIRE DATA LINK CONNECTOR (BEHIND LEFT SIDE OF SHIPPING PANEL) DK BLU WIRE DK GRN/WHT WIRE ECM BAT FUSE ELECTRONIC 4-SPEED AUTOMATIC OVERDRIVE TRANSMISSION FUEL PUMP AND SENDER (IN FUEL TANK) FUEL PUMP OIL PRESSURE SWITCH (TOP REAR OF ENGINE) FUEL PUMP PRIME CONNECTOR (NO LOCATION AVAILABLE) FUEL PUMP RELAY (LOWER LEFT SIDE OF SHIPPING PANEL) FUSE BLOCK GRY WIRE HEATED OXYGEN SENSOR (IN EXHAUST MANIFOLD) HOT AT ALL TIMES LT BLU/WHT WIRE LT GRN WIRE LT GRN/BLK WIRE NCA WIRE ORG/ WIRE OXYGEN SENSOR (IN EXHAUST MANIFOLD) PNK WIRE PNK/BLK WIRE PPL PPL/WHT WIRE PRESSURE CONTROL SOLENOID RANGE MODE SELECTOR RED WIRE RED/BLK WIRE SOLENOID TORQUE CONVERTER CLUTCH TRANS- MISSION TEMP SENSOR VEHICLE SPEED SENSOR (LEFT REAR OF TRANSMISSION) VEHICLE SPEED SENSOR BUFFER (BEHIND RIGHT SIDE OF I/P) WHT/BLK WIRE YEL/BLK WIRE

Go to component -> Wiring diagram engine performance 7.4l (vin n)s, a/t except cutaway (3 of 3) -> BLK WIRE

blk wiring diagram (248 of 284)

5.7L 7.4L 7.4L ONLY AIR CONDITION- ING SYSTEM BLK WIRE BLK/RED WIRE BLK/WHT WIRE BLK/YEL WIRE BRN WIRE BRN/WHT WIRE DIAGNOSTIC TEST TP SENSOR SIGNAL INJECTOR 1 CONTROL DK BLU WIRE DK BLU/WHT WIRE DK GRN WIRE DK GRN/WHT WIRE DK GRN/YEL WIRE ECM BAT FUSE ECM I FUSE ECT SIGNAL EGR CONTROL EVAPORATIVE CANISTER PURGE CONTROL SOLENOID (TOP RIGHT SIDE OF ENGINE) EXHAUST GAS RECIRCULATION VALVE SOLENOID (TOP RIGHT SIDE OF ENGINE) FUEL PUMP RELAY CTRL PCS LOW FUEL PUMP SIGNAL MAP SIGNAL FUSE BLOCK GRY WIRE GRY/RED WIRE HOT AT ALL TIMES HOT IN RUN, BULB TEST OR START IC BYPASS SENSOR GROUND SENSOR GROUND TFT SIGNAL 470 455 PPL IDLE AIR CONTROL ACTUATOR (TOP REAR OF ENGINE) IDLE SPEED ACTUATOR CONTROL SOLENOID (NO LOCATION AVAILABLE) KNOCK SIGNAL EGR PINTLE POSITION SIGNAL LINEAR EGR VACUUM REGULATOR SOLENOID VALVE (TOP FRONT OF ENGINE) LT BLU/BLK WIRE LT BLU/WHT WIRE LT GRN WIRE LT GRN/BLK WIRE LT GRN/WHT WIRE NCA WIRE ORG/ WIRE OXYGEN SENSOR (IN EXHAUST MANIFOLD) OXYGEN SENSOR GROUND PNK 22 23 WIRE PNK RANGE SIGNAL A INPUT SPEED SIGNAL HIGH INPUT SPEED SIGNAL LOW WIRE PNK/BLK WIRE POWERTRAIN CONTROL MODULE (LEFT SIDE OF SHIPPING PANEL) PPL PPL 20 21 PPL/WHT WIRE RANGE SIGNAL B RANGE SIGNAL C MIL CONTROL RED WIRE RED/BLK WIRE TAN WIRE TAN/BLK WIRE TAN/WHT WIRE THROTTLE BODY FUEL INJECTOR #1 (TOP OF THROTTLE BODY UNIT) THROTTLE BODY FUEL INJECTOR #2 (TOP OF THROTTLE BODY UNIT) TRANSMISSION INPUT SPEED SENSOR (LEFT SIDE OF TRANSMISSION) WHT WIRE WHT/BLK WIRE YEL WIRE YEL/BLK WIRE

Go to component -> Wiring diagram engine performance 7.4l (vin n)s, cutaway chassis (1 of 3) -> BLK WIRE

blk wiring diagram (249 of 284)

3 121 PNK WIRE ACCY BLK WIRE BLK/RED WIRE BLK/YEL WIRE BRN WIRE BRN/WHT WIRE BULB TEST DISTRIBUTOR (CENTER REAR OF ENGINE) DK BLU WIRE DK GRN/WHT WIRE ENGINE COOLANT TEMPERATURE SENSOR (TOP FRONT OF ENGINE) FUSE BLOCK GAGES FUSE GRY WIRE HOT AT ALL TIMES HOT IN RUN, BULB TEST OR START IGNITION COIL (TOP RIGHT REAR OF ENGINE) IGNITION SWITCH INSTRUMENT CLUSTER KNOCK SENSOR (LEFT REAR OF ENGINE, NEAR OIL PRESSURE SENDER) LOCK OFF LT BLU/WHT WIRE LT GRN WIRE MALFUNCTION (SERVICE ENGINE SOON) INDICATOR MANIFOLD ABSOLUTE PRESSURE SENSOR (ABOVE VALVE COVER) NCA WIRE ORG/ WIRE PNK 22 23 WIRE PNK WIRE PNK/BLK WIRE PPL PPL 20 21 PPL 3 4 PPL/WHT WIRE PROVISIONS FOR TACHOMETER RED WIRE RED/BLK WIRE RUN WIRE TAN/BLK WIRE TCC/BRAKE SWITCH (ON BRAKE PEDAL SUPPORT BRACKET) THROTTLE POSITION SENSOR (ON THROTTLE BODY) TRANS FUSE WHT WIRE WHT/BLK WIRE YEL WIRE YEL/BLK WIRE

Go to component -> Wiring diagram engine performance 7.4l (vin n)s, cutaway chassis (2 of 3) -> BLK WIRE

blk wiring diagram (250 of 284)

1-2 SHIFT SOLENIOD 2-3 SHIFT SOLENIOD B/H CONN BLK WIRE BLK/WHT WIRE BLK/YEL WIRE BRN WIRE DATA LINK CONNECTOR (BEHIND LEFT SIDE OF SHIPPING PANEL) DK BLU WIRE DK GRN/WHT WIRE ELECTRONIC 4-SPEED AUTOMATIC OVERDRIVE TRANSMISSION FUEL PUMP AND SENDER (IN FUEL TANK) FUEL PUMP FUSE FUEL PUMP OIL PRESSURE SWITCH (TOP REAR OF ENGINE) FUEL PUMP PRIME CONNECTOR (TOP OF COWL) FUEL PUMP RELAY (LOWER LEFT SIDE OF SHIPPING PANEL) FUSE BLOCK GRY WIRE HOT AT ALL TIMES LT BLU/WHT WIRE LT GRN WIRE LT GRN/BLK WIRE NCA WIRE ORG/ WIRE PNK WIRE PNK/BLK WIRE PPL PPL 3 4 PPL/WHT WIRE PRESSURE CONTROL SOLENOID RANGE MODE SELECTOR RED WIRE RED/BLK WIRE SOLENOID TAN/BLK WIRE TORQUE CONVERTER CLUTCH TRANS- MISSION TEMP SENSOR VEHICLE SPEED SENSOR (LEFT REAR OF TRANSMISSION) VEHICLE SPEED SENSOR BUFFER (BEHIND RIGHT SIDE OF I/P) WHT/BLK WIRE YEL/BLK WIRE

Go to component -> Wiring diagram engine performance 7.4l (vin n)s, cutaway chassis (3 of 3) -> BLK WIRE

GMC Rally G2500 (1985-1995) blk Wiring diagrams

blk wiring diagram (241 of 284)

List of components:

blk wiring diagram (242 of 284)

List of components:

blk wiring diagram (243 of 284)

List of components:

blk wiring diagram (244 of 284)

List of components:

blk wiring diagram (245 of 284)

List of components:

blk wiring diagram (246 of 284)

List of components:

blk wiring diagram (247 of 284)

List of components:

blk wiring diagram (248 of 284)

List of components:

blk wiring diagram (249 of 284)

List of components:

blk wiring diagram (250 of 284)

List of components:

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