Chevrolet Chevy Van G1500 (1996-1998) nca Wiring diagrams

A/T SHIFT LOCK SOLENOID ASHTRAY LAMP AUXILIARY BATTERY (6.5L VIN F) AUXILIARY POWER OUTLET BATTERY BLK WIRE BLK/WHT WIRE CIGARETTE LIGHTER CONVENIENCE CENTER CONVENIENCE CENTER (LEFT SIDE OF DASH) DATA LINK CONNECTOR DAYTIME RUNNING LAMP CONTROL MODULE DAYTIME RUNNING LAMPS RELAY HEADLAMP SWITCH I/P COMPARTMENT LAMP I/P RELAY CENTER IGNITION SWITCH W/ UPFITTER PROVISIONS ILLUMINATED ENTRY MODULE INSTRUMENT CLUSTER LEFT FRONT PARK AND TURN SIGNAL LAMP (INNER) (W/ COMPOSITE HEADLAMPS) LEFT FRONT PARK AND TURN SIGNAL LAMP (OUTER) (W/ COMPOSITE HEADLAMPS) LEFT FRONT PARK AND TURN SIGNAL LAMP (W/ SEALED BEAM HEADLAMPS) LEFT FRONT SIDE MARKER LAMP LEFT HEADLAMP (W/ SEALED BEAM HEADLAMPS) LEFT HIGH BEAM HEADLAMP (W/ COMPOSITE HEADLAMPS) LEFT LOW BEAM HEADLAMP (W/ COMPOSITE HEADLAMPS) LEFT POWER SEAT SWITCH LEFT SUN SHADE MIRROR LAMP LOW ENGINE COOLANT LEVEL INDICATOR MODULE (DIESEL) LOW ENGINE COOLANT LEVEL INDICATOR SENSOR (DIESEL) MULTI-FUNCTION ALARM MODULE NCA WIRE OF ENGINE COMPT) P/B BOOSTER FLUID FLOW SWITCH POWER ANTENNA ASSEMBLY POWER DOOR LOCK CONTROL MODULE POWER DOOR LOCK RELAY RADIO REMOTE CONTROL DOOR LOCK RECEIVER SIDE DOOR JAMB SWITCH (W/ UPFITTER PROVISIONS) RIGHT FRONT RIGHT FRONT PARK AND TURN SIGNAL LAMP (INNER) (W/ COMPOSITE HEADLAMPS) RIGHT FRONT PARK AND TURN SIGNAL LAMP (OUTER) (W/ COMPOSITE HEADLAMPS) RIGHT FRONT PARK AND TURN SIGNAL LAMP (W/ SEALED BEAM HEADLAMPS) RIGHT FRONT SIDE MARKER LAMP RIGHT HEADLAMP (W/ SEALED BEAM HEADLAMPS) RIGHT HIGH BEAM HEADLAMP (W/ COMPOSITE HEADLAMPS) RIGHT LOW BEAM HEADLAMP (W/ COMPOSITE HEADLAMPS) RIGHT SUN SHADE MIRROR LAMP SEAT BELT SWITCH STEERING COLUMN GROUND TEMPERATURE VALVE ACTUATOR MOTOR HEATER AND A/C CONTROLLER UPFITTER PROVISIONS RELAY W/ UPFITTER PROVISIONS W/O KEYLESS ENTRY WHT WIRE

15-77 CM FROM BREAKOUT TO CONNECTOR NEAR STARTER MOTOR) 4.3L 4.3L, GVW OVER 8500 LBS., FEDERAL EMISSIONS 5.0/ 5.7L 5.0L, 5.7L, 7.4L 7.4L 7.4L ONLY 7.4L OTHERS OTHERS 7.4L/ 4.3L SECONDARY AIR INJECTION REACTION PUMP CLUTCH (7.4L ONLY) A/C COMPRESSOR CLUTCH COIL A/C LOW PRESSURE CUTOUT SWITCH A/C LOW PRESSURE CUTOUT SWITCH FUEL PUMP AND SENDER BLK WIRE BLK/WHT WIRE BLOWER MOTOR RESISTOR/ RELAY BRAKE PRESSURE DIFFERENTIAL SWITCH CRUISE CONTROL MODULE INSTRUMENT CLUSTER DATA LINK CONNECTOR DIODE ELECTRONIC BRAKE CONTROL MODULE EVAP EMISSION CANISTER VACUUM SWITCH EVO/ PASSLOCK MODULE EXCEPT 7.4L FUEL PUMP RELAY GASOLINE ENGINES HEATED OXYGEN SENSOR (BANK 1, SENSOR 3) HEATED OXYGEN SENSOR BANK 2 SENSOR 1 HEATED OXYGEN SENSOR, BANK 1 SENSOR 1 PARK/ NEUTRAL POSITION SWITCH HEATED OXYGEN SENSOR, BANK 1 SENSOR 2 HEATED OXYGEN SENSOR, BANK 1 SENSOR 3 HORNS IGNITION CONTROL MODULE INFLATABLE RESTRAINT FRONT END DISCRIMINATING SENSOR INFLATABLE RESTRAINT SENSING AND DIAGNOSTIC MODULE LEFT FRONT DOOR JAMB SWITCH LEFT FRONT POWER DOOR LOCK SWITCH LEFT FRONT POWER SIDE WINDOW SWITCH LEFT POWER OUTSIDE REAR VIEW MIRROR MASS AIR FLOW SENSOR NCA WIRE OTHERS 7.4L OTHERS EXCEPT 7.4L POWER OUTSIDE REAR VIEW MIRROR REMOTE CONTROL SWITCH RIGHT FRONT DOOR JAMB SWITCH RIGHT FRONT POWER DOOR LOCK SWITCH RIGHT FRONT POWER SIDE WINDOW SWITCH RIGHT POWER OUTSIDE REAR VIEW MIRROR STARTER RELAY TAN/WHT WIRE UNDERHOOD FUSE-RELAY CENTER UNDERHOOD REEL LAMP UNDERHOOD LAMP VEHICLE CONTROL MODULE

A/C COMPRESSOR CLUTCH COIL AMBULANCE PACKAGE BLK WIRE BLK/WHT WIRE BLOWER MOTOR RESISTOR/ RELAY BLUNT CUT) BRAKE PRESSURE DIFFERENTIAL SWITCH CENTER HIGH MOUNTED STOPLAMP CENTER HIGH MOUNTED STOPLAMP DATA LINK CONNECTOR DIESEL ENGINES DIODE ELECTRONIC BRAKE CONTROL MODULE EVO/ PASSLOCK MODULE FRONT AUXILIARY HVAC CONTROL MODULE HEATER AND A/C CONTROL LOGIC MODULE FUEL HEATER FUEL LIFT PUMP FUEL PUMP RELAY FUEL SENDER BUFFER MODULE GLOW PLUG RELAY HORNS INSTRUMENT CLUSTER LEFT BACK-UP LAMP LEFT REAR PARK/ STOP LAMP LEFT REAR PARK/ TURN LAMP NCA WIRE PARK/ NEUTRAL POSITION SWITCH PASSENGER VANS ONLY POWERTRAIN CONTROL MODULE REAR AUXILIARY HVAC CONTROL MODULE RIGHT BACK-UP LAMP LICENSE LAMP RIGHT POWER SEAT SWITCH RIGHT REAR DOOR JAMB SWITCH SIDE DOOR JAMB SWITCH RIGHT REAR PARK/ STOP LAMP RIGHT REAR PARK/ TURN LAMP STARTER RELAY TAN/WHT WIRE UNDERHOOD FUSE-RELAY CENTER UNDERHOOD LAMP UNDERHOOD REEL LAMP VEHICLE SPEED SENSOR BUFFER W/ AUXILIARY HEAT ONLY W/ AUXILIARY HEAT, A/C WATER IN FUEL INDICATOR

4.3L, 5.0L, 5.7L ONLY BLK WIRE DIESEL DK GRN WIRE GASOLINE HORN BRUSH HORN FUSE HORN RELAY HORN SWITCH HORNS (LEFT FRONT OF VEHICLE) HOT AT ALL TIMES NCA WIRE ORG/ WIRE STEERING COLUMN GROUND TURN SIGNAL SWITCH UNDERHOOD FUSE/RELAY CENTER

4 5 6 PNK PNK WIRE AIR BAG IND ANTI-LOCK BRAKES SYSTEM ENGINE CONTROLS SYSTEM ANTI-LOCK BRAKES WARNING IND BAT IND BLK WIRE BLK/WHT WIRE BRAKE IND IN BRAKE TT BRAKE PSI IGN PK BRAKE BRAKE WARNING IND BRN WIRE BRN/WHT WIRE CHECK GAUGES IND CHECK GAUGES LAMP DRIVER DAYTIME RUNNING LAMP CONTROL MODULE (UNDER LEFT SIDE OF DASH, TAPED TO HARNESS) DIESEL ONLY EXTERIOR LIGHTS SYSTEM DIODE-I DK BLU WIRE DK GRN WIRE DRL LAMP IND ELECTRONIC BRAKE CONTROL MODULE (LEFT FRAME RAIL, NEAR CENTER OF VEHICLE) ENGINE COOLANT TEMPERATURE GAUGE SENDER (LEFT SIDE OF ENGINE BLOCK) FUEL GAUGE GAUGES FUSE 4 GRN/BLK WIRE GRY WIRE HEADLIGHTS SYSTEM HIGH BEAM IND HOT IN RUN OR START I/P FUSE BLOCK (LOWER LEFT KICK PANEL) IGNITION SWITCH ILLUMIN- ATION LAMPS INSTRUMENT CLUSTER LEFT TURN IND LOCK LOW COOLANT IND. (DIESEL) LT BLU WIRE LT GRN WIRE NCA WIRE OFF OIL PRESS GAUGE PARK/NEUTRAL POSITION, BACKUP LAMP SWITCH (LEFT SIDE OF TRANSMISSION) PNK 1 2 WIRE PNK IGN FEED IND CTRL GND WIRE PNK WIRE PPL PPL/WHT WIRE PRNDL CIRCUIT BOARD RIGHT TURN IND RUN WIRE SAFETY BELT IND SERVICE ENGINE SOON IND SERVICE THROTTLE SOON IND (DIESEL) SOLID STATE SPEEDOMETER/ ODOMETER STARTING/CHARGING SYSTEM SUPPLEMENTAL RESTRAINTS SYSTEM TAN WIRE TAN/WHT WIRE TEMP GAUGE UNDERHOOD FUSE-RELAY CENTER (LEFT FRONT FENDER) UNDERHOOD FUSE-RELAY CENTER (LEFT FRONT FENDER) ENG-I MINI FUSE VOLT- METER WAIT IND (DIESEL) WARNING SYSTEM ENGINE CONTROLS SYSTEM DIESEL ONLY WATER IN FUEL IND. (DIESEL) WATER-IN-FUEL SENSOR (DIESEL ONLY) (LEFT FRAME RAIL, NEAR CENTER OF VEHICLE) WHT WIRE WHT/BLK WIRE YEL WIRE YEL/BLK WIRE

ASH TRAY LAMP BASE BATTERY BLK WIRE BRIGHT ADJUST BRN WIRE CENTER DOME AND READING LAMP (READING LAMPS W/ CONVENIENCE CENTER (UNDER LEFT SIDE OF DASH) CSTY FUSE 3 DK GRN WIRE DOME LAMP DOME LAMP DEFEAT SWITCH DOME SWITCH FRONT DOME AND READING LAMP (READING LAMPS W/ GAUGES FUSE 4 GROUND GRY WIRE HEADLAMP SWITCH HOT AT ALL TIMES HOT IN RUN AND START I/P COMPART- MENT LAMP I/P FUSE BLOCK IGNITION ILLUMINATED ENTRY MODULE (ON RIGHT LOWER KICK PANEL) JAMB SW JAMB SWITCH LAMP LEFT FRONT DOOR JAMB SWITCH LEFT FRONT POWER DOOR LOCK SWITCH LEFT FRONT POWER SIDE WINDOW SWITCH LEFT STEPWELL LAMP LEFT SUNSHADE MIRROR LAMP NCA WIRE NON BASE ONLY NON BASE UPFITTER PROV. NON- BASE OPTION ORG/ WIRE PARADE MODE SWITCH PARK LPS FUSE 9 PARK SWITCH PNK WIRE POWER DOOR LOCK CONTROL MODULE (ON LEFT KICK PANEL) POWER MIRRORS SYSTEM PPL PPL W/O POWER DOOR LOCKS W/ POWER DOOR LOCKS PWR ACCY FUSE A READING LAMPS REAR DOME AND READING LAMP (READING LAMPS W/ REAR DOOR) RIGHT FRONT DOOR JAMB SWITCH RIGHT FRONT POWER DOOR LOCK SWITCH RIGHT FRONT POWER SIDE WINDOW SWITCH RIGHT STEPWELL LAMP RIGHT SUNSHADE MIRROR LAMP SIDE DOOR JAMB SWITCH SIDE STEPWELL LAMP TO I/P FUSE BLOCK (DIAGRAM 3 OF 3) W/O KEYLESS ENTRY WHT WIRE WHT/BLK WIRE

BLK WIRE BLK/WHT WIRE BLU WIRE BRN WIRE BRN/WHT WIRE CAM SIGNAL CAMSHAFT POSITION SENSOR (PART OF DISTRIBUTOR, TOP REAR OF ENGINE) CMP SENSOR GROUND FUEL LVL SIG OUT TCC SOLENOID OUTPUT PPL COIL B HIGH COIL A HIGH INJ 2 CTRL INJ 3 CTRL DK BLU WIRE DK GRN WIRE DK GRN/WHT WIRE DK PNK WIRE EVAP VENT VLV SIG EVAPORATIVE EMISSIONS CANISTER VENT VALVE (ON LEFT FRAME RAIL, NEAR EBCM) GRN WIRE KNOCK SENS SIGNAL KNOCK SENSOR (TOP REAR OF ENGINE) LT BLU/BLK WIRE LT BLU/WHT WIRE LT GRN WIRE LT GRN/BLK WIRE LT GRN/WHT WIRE LT LT LT NCA WIRE PNK PNK PNK PNK PNK 1 2 3 4 5 6 7 8 9 10 11 12 13 14 15 WIRE PNK PPL WIRE PNK WIRE PNK/BLK WIRE PPL PPL CKP SENSOR GROUND VSS SIGNAL LOW VSS SIGNAL HIGH CKP SENSOR SIGNAL PPL PNK WIRE PPL PPL PPL/WHT WIRE SHIFT SOL OUTPUT (2/3) SHIFT SOL OUTPUT (3/2) SOLID STATE TAN WIRE TAN/BLK WIRE TAN/WHT WIRE TRANS TEMP SENS SIGNAL MAF SIGNAL COIL B LOW COIL A LOW INJ 5 CTRL INJ 4 CTRL VEHICLE CONTROL MODULE (VCM) (LEFT SIDE OF ENGINE COMPARTMENT) VSS SIGNAL OUTPUT WHT WIRE YEL WIRE YEL/BLK WIRE

1-2 SHIFT SOLENOID 2-3 SHIFT SOLENOID 16 17 18 PPL 3-2 SHIFT SOLENOID TCC SOL APPROX 22 CM FROM AUTOMATIC TRANSMISSION BLK WIRE BLK/WHT WIRE BLU WIRE BRN WIRE DK BLU WIRE DK GRN WIRE DK GRN/WHT WIRE EXHAUST GAS RECIRCULATION VALVE (TOP FRONT OF ENGINE) FUEL INJ 1 FUEL INJ 2 FUEL INJ 3 FUEL INJ 4 FUEL INJ 5 FUEL INJ 6 FUSE GRN WIRE GRY WIRE HOT IN RUN OR START LT BLU WIRE LT BLU/BLK WIRE LT GRN WIRE LT GRN/BLK WIRE NCA WIRE NOTE: FUEL INJECTORS ARE LOCATED IN CENTRAL SFI, TOP OF INTAKE MANIFOLD PIGTAIL CONNECTOR) PNK WIRE PNK PNK PNK 1 2 3 WIRE PNK PNK PNK PNK PNK 1 2 3 4 5 6 7 8 9 10 11 12 13 14 15 WIRE PNK PNK WIRE PNK PPL WIRE PNK WIRE PNK/BLK WIRE PPL PNK WIRE PPL/WHT WIRE PRESS SWITCH SIGNAL BIT 1 PRESS SWITCH SIGNAL BIT 2 PRESS SWITCH SIGNAL BIT 3 PRESSURE CONTROL SOLENOID RED WIRE RED/BLK WIRE TAN WIRE TAN/BLK WIRE TAN/WHT WIRE TCC PWM SOLENOID TEMP SENSOR SIGNAL PWR SENSOR GROUND UNDER HOOD FUSE-RELAY CENTER WHT WIRE YEL WIRE YEL/BLK WIRE

2-3 SHIFT SOL BLK WIRE BLK/WHT WIRE BLU WIRE BRN WIRE BRN/WHT WIRE CAMSHAFT POSITION SENSOR (PART OF DISTRIBUTOR, REAR TOP OF ENGINE) CANISTER VET SIG CMP RETURN FUEL LVL SIG OUT TCC SOL OUTPUT PPL CMP SIGNAL DK BLU WIRE DK BLU/WHT WIRE DK GRN WIRE DK GRN/WHT WIRE DK PNK WIRE EVAPORATIVE EMISSION CANISTER VENT VALVE (ON LEFT FRAME RAIL, NEAR EBCM) GRN WIRE KNOCK SENS SIGNAL KNOCK SENSOR (TOP REAR OF ENGINE) LT BLU/BLK WIRE LT BLU/WHT WIRE LT GRN WIRE LT GRN/BLK WIRE LT GRN/WHT WIRE LT LT LT PPL MAP SENS SIGNAL IAT SIG ECT SIG TP SIG FUEL TANK PRESS SIG 472 410 NCA WIRE PNK 12 13 14 15 16 WIRE PNK PNK PPL PNK PNK 1 2 3 4 5 6 7 8 WIRE PNK PPL WIRE PNK WIRE PNK/BLK WIRE PPL PPL CKP LOW VSS LOW CSS SIG CKP SIG PPL PNK WIRE PPL PPL PPL/WHT WIRE RED/BLK WIRE SHIFT SOLENOID OUTPUT SOLID STATE TAN WIRE TAN/BLK WIRE TAN/WHT WIRE TEMP SENS SIGNAL MAF SIGNAL IAC HIGH IAC LOW FUEL INJ 4 FUEL INJ 3 VEHICLE CONTROL MODULE (VCM) (LEFT SIDE OF ENGINE COMPARTMENT) VEHICLE SPEED SENSOR (LEFT SIDE OF TRANSMISSION) VSS SIGNAL WHT WIRE YEL WIRE YEL/BLK WIRE

1-2 SHIFT SOLENOID 2-3 SHIFT SOLENOID 4-SPEED TRANS. ONLY 6 7 8 9 10 11 PNK PNK PNK PNK WIRE A/T FLUID PRESSURE MANUAL VALVE POSITION SWITCH AUTOMATIC TRANSMISSION BLK WIRE BLK/WHT WIRE BLU WIRE BRN WIRE DK BLU WIRE DK BLU/WHT WIRE DK GRN WIRE DK GRN/WHT WIRE ECM 1 FUSE ENG 1 FUSE EXHAUST GAS RECIRCULATION VALVE (TOP FRONT OF ENGINE) FUEL INJ 1 FUEL INJ 2 FUEL INJ 3 FUEL INJ 4 FUEL INJ 5 FUEL INJ 6 FUEL INJ 7 FUEL INJ 8 GRN WIRE GRY WIRE HOT IN RUN OR START IGNITION PRESSURE CONTROL SOLENOID VALVE LT BLU/BLK WIRE LT BLU/WHT WIRE LT GRN WIRE LT GRN/BLK WIRE LT PNK WIRE NCA WIRE PNK 1 2 WIRE PNK 12 13 14 15 16 WIRE PNK LT WIRE PNK PNK PPL PNK PNK WIRE PNK WIRE PNK/BLK WIRE PPL PPL PNK WIRE RED WIRE RED/BLK WIRE TAN WIRE TAN/BLK WIRE TCC PCM SOLENOID VALVE TCC SOLENOID VLAVE 3-2 SHIFT SOLENOID TEMP SENSOR SIGNAL TEMP SENSOR GROUND TRANS.) UNDER HOOD FUSE-RELAY CENTER WHT WIRE YEL WIRE YEL/BLK WIRE