Chevrolet Forward Control P30 (1985-1999) gry/blk Wiring diagrams

BLK WIRE BLU WIRE BRAKE APPLIED INPUT BRN WIRE CRUISE ON INPUT DK BLU WIRE DK GRN/WHT WIRE GRY WIRE GRY/BLK WIRE HAZARD LAMPS FLASHER HOT AT ALL TIMES HOT IN RUN I-3 FUSE 9 I/P FUSE BLOCK LT BLU WIRE MULTIFUNCTION LEVER NCA WIRE OFF ORG/ WIRE POWERTRAIN CONTROL MODULE (PCM) (LEFT SIDE OF DRIVER'S ISLAND) PPL PPL DISENGAGE INPUT R/A RESUME/ACCEL INPUT S/C DK SET/COAST INPUT STOP/HAZ FUSE 11 STOPLAMP SWITCH (TOP OF BRAKE PEDAL) VEHICLE SPEED SENSOR BUFFER (ABOVE ACCELERATOR PEDAL) VSS HI VSS LO

1-2 SHIFT SOL 1227 433 TRANS FLUID TEMP SIG BARO SENSOR INPUT 2-3 SHIFT SOL CTRL 1-2 SHIFT SOL CTRL DIAGNOSTIC TEST 9 6 DATA LINK CONNECTOR (PARTIAL) (BELOW DASH, NEAR STEERING COLUMN) A/T INPUT SPEED SENSOR (LEFT FRONT SIDE OF TRANSMISSION) AUTOMATIC TRANSMISSION BAROMETRIC PRESSURE SENSOR (TOP LEFT REAR OF INTAKE MANIFOLD) BATTERY FEED BLK WIRE BLK/WHT WIRE BRN WIRE DASH FUSE BLOCK DK BLU WIRE DK BLU/WHT WIRE ECM 1 FUSE ECM BAT FUSE ENGINE SPEED SENSOR (IN FUEL INJECTION PUMP) ENGINE SPEED SIGNAL SENSOR GROUND TP SENSOR INPUT GRY WIRE GRY/BLK WIRE HOT AT ALL TIMES HOT IN HOT IN RUN OR START I-3 FUSE INSTRUMENT CLUSTER LT BLU/WHT WIRE LT GRN WIRE LT GRN/BLK WIRE ORG/ WIRE OUT PCS HI PCS LO IGNITION PNK WIRE PNK RANGE SIGNAL A RANGE SIGNAL B RANGE SIGNAL C WIRE PNK WIRE PPL PPL BRAKE SIGNAL TCC PWM CONTROL PPL/WHT WIRE PRESSURE CONTROL SOLENOID RANGE MODE SELECTOR RED WIRE RED/BLK WIRE RUN WIRE SERVICE TRANS OUTPUT SERIAL DATA SERVICE TRANSMISSION INDICATOR STOP LAMPS, TORQUE CONVERTER BRAKE SWITCH SYSTEM GROUND SYSTEM GROUND 452 416 SENSOR GROUND 5 VOLTS REF TAN WIRE TCC PWM SOL 2-3 SHIFT SOL THROTTLE POSITION SENSOR (RIGHT SIDE OF FUEL INJECTION PUMP) TRANS FUSE TRANSMISSION CONTROL MODULE (LEFT INTERIOR FIREWALL) TRANSMISSION TEMPERATURE SENSOR VEHICLE SPD OUTPUT VEHICLE SPEED INPUT INPUT SPEED SENS LO INPUT SPEED SENS HI VEHICLE SPEED SENSOR (LEFT REAR OF TRANSMISSION) VEHICLE SPEED SENSOR BUFFER VEHICLE SPEED SENSOR BUFFER, FUEL INJECTION PUMP FUEL SHUT OFF SOLENOID PNK WIRE VSS INPUTS WHT WIRE WHT/BLK WIRE YEL/BLK WIRE

396 817 CRUISE STATUS VEHICLE SPEED INPUT 4000 PULSES/MILE CRUISE STATUS BLK WIRE BLU WIRE BRN WIRE CRUISE CONTROL MODULE (RADIATOR SUPPORT BRACKET) CRUISE CONTROL SWITCH CRUISE ON INPUT SET/COAST INPUT RESUME/ACCEL INPUT DK BLU WIRE DK GRN/WHT WIRE GRY WIRE GRY/BLK WIRE HAZARD LAMPS FLASHER HOT AT ALL TIMES HOT IN RUN I-3 FUSE 9 I/P FUSE BLOCK LT BLU WIRE LT BLU/BLK WIRE LT GRN/BLK WIRE NCA WIRE OFF ORG/ WIRE PPL PPL DISENGAGE INPUT GROUND IGNITION BRAKE APPLIED INPUT PPL/WHT WIRE R/A S/C STOP/HAZ FUSE 11 STOPLAMP SWITCH (TOP OF BRAKE PEDAL) VEHICLE CONTROL MODULE (VCM) (TOP OF RADIATOR SUPPORT) VEHICLE SPEED SENSOR (VSS) VSS RETURN VSS SIGNAL

4000 PULSES/MILE BLK WIRE BLU WIRE BRN WIRE CRUISE CONTROL MODULE (RADIATOR SUPPORT BRACKET) CRUISE CONTROL SWITCH CRUISE ON INPUT SET/COAST INPUT RESUME/ACCEL INPUT DK BLU WIRE DK GRN WIRE GRY WIRE GRY/BLK WIRE HAZARD LAMPS FLASHER HOT AT ALL TIMES HOT IN RUN I-3 FUSE I/P FUSE BLOCK LT BLU WIRE NCA WIRE OFF ORG/ WIRE PPL PPL DISENGAGE INPUT GROUND IGNITION BRAKE APPLIED INPUT R/A S/C STOP/HAZ FUSE STOPLAMP SWITCH (TOP OF BRAKE PEDAL) TORQUE CONVERTER CLUTCH AND STOPLAMPS SWITCH (TOP OF BRAKE PEDAL) VEHICLE SPEED INPUT VEHICLE SPEED SENSOR BUFFER (ABOVE ACCELERATOR PEDAL)

BLK WIRE BRK SW INPUT BRN WIRE CRUISE CONTROL BRAKE SWITCH (ON BRAKE PEDAL SUPPORT) CRUISE CONTROL MODULE (BEHIND LEFT SIDE OF SHIPPING PANEL) CRUISE CONTROL SWITCH DK BLU WIRE DK GRN WIRE FUSE BLOCK GAGES FUSE GROUND GRY WIRE GRY/BLK WIRE HOT IN RUN OR START IGN NCA WIRE ON OFF ON/OFF INPUT PNK/BLK WIRE R/A R/A INPUT S/C S/C INPUT VEHICLE SPEED SENSOR BUFFER (LEFT SIDE OF SHIPPING PANEL) VSS INPUT

ABS IND. ACCY ACCY ANTI-LOCK BRAKES SYSTEM BLK WIRE BLK/WHT WIRE BRAKE IND BRAKE PRESSURE DIFFERENTIAL SWITCH (INTERNAL TO ELECTRONIC BRAKE CONROL MODULE) BRN/WHT WIRE CHECK GAUGES IND COOLANT TEMPERATURE GAUGE DIESEL DIODE NETWORK (DASH HARN, DK BLU WIRE DK GRN WIRE DOOR AJAR IND DRL IND ECM 1 FUSE 12 ELECTRONIC BRAKE CONTROL MODULE (EBCM) (BELOW RADIATOR, ON LOWER CROSSMEMBER) ENG 1 FUSE 15 ENGINE CONTROLS OR STARTING/CHARGING SYSTEM ENGINE CONTROLS SYSTEM ENGINE CONTROLS SYSTEM ENGINE CONTROLS SYSTEM TRANSMISSIONS SYSTEM ENGINE COOLANT LEVEL SWITCH (ON LOWER LEFT END OF RADIATOR SURGE TANK) FOOT BRAKE (PARK BRAKE APPLY OPPTION) FUEL GAUGE FUEL SENDER (ON TOP OF FUEL TANK) GAS GAUGES FUSE 8 GRY WIRE GRY/BLK WIRE HAND BRAKE HEADLIGHTS SYSTEM HI-BEAM IND HOT IN RUN OR START I/P FUSE BLOCK I/P FUSE BLOCK (BODY BUILDER INSTALLED) I/P FUSE BLOCK) INSTRUMENT CLUSTER IGNITION SWITCH ILLUMINATION IN-LINE CONNECTOR PROVISIONS FOR BODY BUILDER INTERIOR LIGHTS SYSTEM WARNING SYSTEMS LEFT TURN IND LOCK LOCK OFF OFF LOW COOLANT IND LT BLU WIRE LT BLU/BLK WIRE LT GRN (OR WHT) WIRE LT GRN WIRE MALFUNCTION IND (MIL) (SERVICE ENGINE SOON IND) NCA WIRE OIL PRESSURE GAUGE PNK 4 13 WIRE PNK WIRE PPL PPL DIESEL PPL GAS PPL RIGHT TURN IND RUN WIRE SEAT BELT IND SERVICE THROTTLE SOON IND SPEEDOMETER TACHOMETER TAN WIRE TAN/WHT WIRE TRANS IND. VEHICLE CONTROL MODULE (ON LEFT SIDE OF RADIATOR SUPPORT) VOLTMETER VSS CALIBRATOR (LEFT SIDE OF DRIVER'S ISLAND, UNDER RELAY BRACKET) W/ DRL W/O DRL WAIT TO START IND WATER IN FUEL IND WHT WIRE WHT/BLK WIRE YEL WIRE YEL/BLK WIRE

12 13 PNK WIRE 1222 1224 1225 1226 1350 PNK WIRE 2-3 SHIFT SOL CTRL FUEL INJ CTRL 4 WHEEL DRIVE LOW SWITCH 999 998 961 452 PPL ACCELERATOR PEDAL POSITION (APP) MODULE (TOP OF ACCELERATOR BRACKET) APP 1 SENSOR APP 2 SENSOR APP 3 SENSOR B/H BATTERY FEED 4 WHL LOW SW BLK WIRE BLK/WHT WIRE BLK/YEL WIRE BRN WIRE BRN/WHT WIRE CRUISE CONTROL SYSTEM CRUISE ON/OFF SIG DATA LINK CONNECTOR (NO LOCATION AVAILABLE) DK BLU WIRE DK BLU/WHT WIRE DK GRN WIRE DK GRN/BLK WIRE DK GRN/WHT WIRE ELECTRONIC 4-SPEED AUTOMATIC OVERDRIVE TRANSMISSION ENG SHUT-OFF CTRL ENGINE COOLANT TEMPERATURE (ECT) SENSOR (RIGHT SIDE OF ENGINE) ENGINE GROUND (NO LOCATION AVAILABLE) ENGINE SHUT- OFF SOLENOID (TOP FRONT OF ENGINE) FUEL INJ CTRL FUEL SOLENOID (TOP FRONT OF ENGINE) FUEL SOLENOID DRIVER (TOP FRONT FUSE BLOCK FUSIBLE LINK (NO LOCATION AVAILABLE) GRY WIRE GRY/BLK WIRE GRY/RED WIRE HI RESOLUTION SIG HOT AT ALL TIMES HOT IN RUN OR START LT BLU WIRE LT BLU/WHT WIRE LT GRN WIRE OF ENGINE) OPTICAL SENSOR AND FUEL TEMPER- ATURE SENSOR (TOP FRONT OF ENGINE) ORG/ WIRE ORG/BLK WIRE PNK WIRE POWERTRAIN CONTROL MODULE (PCM) (LEFT SIDE OF DRIVER'S ISLAND) PPL PPL 15 16 PRESSURE CONTROL SOL RANGE MODE SELECTOR RED WIRE RED/BLK WIRE RESUME/ACCEL SIG SET/COAST SIG SYSTEM GND CLOSURE GRD APP 2 SENS GND APP 1 SENS GND APP 3 SENS GND SENSOR GND TAN WIRE TCC BRAKE SW TCC SOL 2-3 SHIFT SOL 1-2 SHIFT SOL TRANS FLUID TEMP (TFT) SENSOR TRANS FUSE TRANS INPUT SPD LO CKP SIG OPTICAL SENS GND OPTICAL SENS CAM SIG TRANS OUTPUT TRANSMISSION INPUT SPEED SENSOR VEHICLE SPEED SENSOR (LEFT REAR SIDE OF TRANSMISSION) VEHICLE SPEED SENSOR BUFFER (NO LOCATION AVAILABLE) VSS VSS INPUT VSS OUTPUT WHT WIRE WHT/BLK WIRE YEL WIRE YEL/BLK WIRE

"SERVICE THROTTLE" LAMP 12 13 PNK WIRE A/C SIG AIR CONDITIONING SYSTEM APP 3 SENS SIG FUEL TEMP SIG IAT SIG BARO SENSOR (NO LOCATION AVAILABLE) BLK WIRE BLK/WHT WIRE BLU WIRE BRN/WHT WIRE DK BLU WIRE DK BLU/WHT WIRE DK GRN WIRE ECM-CRNK FUSE FUEL HEATER (NO LOCATION AVAILABLE) FUEL PUMP (NO LOCATION AVAILABLE) FUEL PUMP OIL PRESSURE SWITCH FUEL PUMP RELAY (NO LOCATION AVAILABLE) FUSIBLE LINK FUSIBLE LINKS GLOW PLUG CONTROL RELAY (RIGHT REAR TOP OF ENGINE) GLOW PLUG SIG GROUND (NO LOCATION AVAILABLE) GRY WIRE GRY/BLK WIRE HOT AT ALL TIMES HOT AT ALL TIMES FUSE BLOCK STOP FUSE HOT IN RUN, BULB TEST OR START HOT IN START OR RUN ALT FUSE IGNITION FEED INSTRUMENT CLUSTER INSTRUMENT CLUSTERS SYSTEM LEFT BANK GLOW PLUGS LT GRN WIRE LT GRN/WHT WIRE MANIFOLD ABSOLUTE PRESSURE SENSOR (NO LOCATION AVAILABLE) ORG/ WIRE ORG/BLK WIRE PNK WIRE PNK/BLK WIRE POWERTRAIN CONTROL MODULE (PCM) (LEFT SIDE OF DRIVER'S ISLAND) PPL 15 16 PPL/WHT WIRE RED WIRE RED/BLK WIRE RIGHT BANK GLOW PLUGS SERVICE ENGINE SOON LAMP STARTING/ CHARGING SYSTEM STOP LAMP/ CRUISE CONTROL BRAKE SWITCH (ON BRAKE PEDAL SUPPORT) TAN WIRE TCC BRAKE SWITCH (ON BRAKE PEDAL SUPPORT) PPL WAIT LAMP WASTEGATE SOL CTRL WHT/BLK WIRE YEL WIRE YEL/BLK WIRE

1-2 SHIFT 1226 1225 TR SWITCH C TR SWITCH B TR SWITCH A 2-3 SHIFT A/C REQUEST SIG ANTILOCK BRAKES SYSTEM AUTOMATIC TRANSMISSION AUTOMATIC TRANSMISSION INPUT SHAFT SPEED SENSOR (LEFT SIDE OF TRANSMISSION) BATTERY BLK WIRE BLK/WHT WIRE BLU WIRE BLU/WHT WIRE BRN WIRE BRN/WHT WIRE CLOSURE SIGNAL BOOST SENSOR SIG PRESS CTRL SOL VLV LO DK BLU WIRE DK BLU/WHT WIRE DK GRN WIRE DK GRN/WHT WIRE ECT SIGNAL GRN WIRE GRY WIRE GRY/BLK WIRE LT BLU WIRE LT BLU/WHT WIRE LT GRN WIRE LT GRN/WHT WIRE LT PNK WIRE OR DK PNK WIRE ORG/ WIRE ORG/BLK WIRE OUTPUT SHAFT SPEED SENSOR PNK PNK PPL 9 10 11 12 13 14 15 16 17 18 19 20 21 22 23 WIRE PNK WIRE PNK/BLK WIRE POWERTRAIN CONTROL MODULE (PCM) (LEFT SIDE OF DRIVER'S ISLAND) PPL PPL PPL 28 29 30 31 32 PPL TCC/ABS BRAKE SW STOPLAMP SWITCH CRIUSE SET/COAST SIG 20 84 PPL/WHT WIRE PRESSURE CONTROL SOLENOID VALVE RANGE MODE SELECTOR TRANSMISSION TEMPERATURE SENSOR RED WIRE RED/BLK WIRE RESUME SENSOR GND SET- SOLENOID VALVE SOLID STATE SPEED CONTROL SWITCH TAN WIRE TAN/BLK WIRE TCC PWM SOLENOID VALVE TIMING STEPPER MTR (LOW) TIMING STEPPER MTR (LOW) TRANSMISSION SPEED INPUT WHT WIRE YEL WIRE YEL/BLK (OR RED/BLK) WIRE YEL/BLK WIRE

"TRANS" LAMP 1-2 SHIFT SOL 2-3 SHIFT SOL TCC SOL 2-3 SHIFT SOL CTRL 1-2 SHIFT SOL CTRL DIAGNOSTIC TEST A/C INPUT BRAKE SIGNAL TCC CONTROL PPL ACCY AIR CONDI- TIONING SYSTEM ALT FUSE B/H BATTERY FEED BLK WIRE BLK/WHT WIRE BLK/YEL WIRE BLU WIRE BRN WIRE BULB TEST COLD ADVANCE FAST IDLE TEMPERATURE SWITCH (RIGHT REAR OF ENGINE) COLD ADVANCE SOLENOID (TOP FRONT OF ENGINE) DATA LINK CONNECTOR (BEHIND LEFT SIDE SHIPPING DIODE (BEHIND GENERATOR) DK BLU WIRE DK BLU/WHT WIRE DK GRN WIRE ECM BAT FUSE ECM CRANK FUSE ELECTRONIC 4-SPEED AUTOMATIC OVERDRIVE TRANSMISSION ENGINE SPEED SIGNAL SENSOR GROUND TP SENSOR INPUT FAST IDLE SOLENOID (TOP LEFT SIDE OF ENGINE) FUEL HEATER (TOP REAR OF ENGINE) FUEL SHUT- OFF SOLENOID (TOP FRONT OF ENGINE) FUSE BLOCK FUSIBLE LINK (20 GA-RUST) FUSIBLE LINKS GLOW PLUG CONTROLLER (LEFT SIDE OF ENGINE) GLOW PLUG WAIT LAMP GRY WIRE GRY/BLK WIRE GRY/RED WIRE HOT AT ALL TIMES HOT AT ALL TIMES FUSIBLE LINK HOT IN CRANK HOT IN RUN, BULB TEST OR START INPUTS INSTRUMENT CLUSTER LEFT BANK GLOW PLUGS LOCK OFF LT BLU/WHT WIRE LT GRN WIRE LT GRN/BLK WIRE NCA WIRE ORG/ WIRE ORG/BLK WIRE PANEL) PCS HI PCS LO IGNITION PNK RANGE SIGNAL A RANGE SIGNAL B RANGE SIGNAL C WIRE PNK WIRE PNK/BLK WIRE PPL PRESSURE CONTROL SOLENOID RANGE MODE SELECTOR RED WIRE RED/BLK WIRE RIGHT BANK GLOW PLUGS RUN WIRE SERVICE TRANS OUTPUT SERIAL DATA SYSTEM GROUND SYSTEM GROUND 452 416 SENSOR GROUND 5 VOLTS REF TAN/BLK WIRE TCC/BRAKE SWITCH (ON BRAKE PEDAL SUPPORT) TRANS FLUID TEMP SIG MAP SENS TRANS FUSE TRANS- MISSION FLUID TEMP (TFT) SENSOR TRANSMISSION CONTROL MODULE (TCM) (BEHIND LEFT SIDE OF SHIPPING PANEL) TRANSMISSION INPUT SPEED SENSOR (LEFT SIDE OF TRANSMISSION) VEHICLE SPEED INPUT TRANS INPUT SPD LO TRANS INPUT SPD HI VEHICLE SPEED SENSOR (REAR OF TRANSMISSION) VEHICLE SPEED SENSOR BUFFER (UNDER RIGHT SIDE OF I/P) VEHICLE SPD OUTPUT VSS WATER IN FUEL INDICATOR WATER-IN FUEL SENSOR (TOP REAR OF ENGINE) WHT WIRE WHT/BLK WIRE YEL/BLK WIRE