Chevrolet Astro I (1985-2005) blk/wht Wiring diagrams

AMBIENT LIGHT SENSOR (ON TOP LEFT CENTER OF DASH) ANTI-THEFT SYSTEM ANTI-THEFT SYSTEM REMOTE KEYLESS ENTRY CIRCUIT BLK WIRE BLK/WHT WIRE BODY CONTROL MODULE (BCM) (ABOVE RADIO) BRN WIRE COURTESY LAMP ON SIG HEADLAMP SW FLASH-TO-PASS CRUISE FUSE 6 DK BLU WIRE DK BLU/WHT WIRE DK GRN/WHT WIRE DOOR LOCKS SYSTEM DOOR LOCKS SYSTEM DRIVER DOOR JAMB SWITCH SIG DRL RELAY CTRL CLASS 2 SERIAL DATA GROUND IGNITION 1 VOLTAGE EXTERIOR LIGHTS SYSTEM EXTERIOR LIGHTS SYSTEM GMCM SERIAL DATA GROUND BATTERY POSITIVE VOLTAGE DOOR UNLOCK CTRL DOOR LOCK CTRL GRY WIRE GRY/BLK WIRE GUAGES FUSE 4 HEADLAMP OFF SIG HEADLAMP RELAY COIL SUP VOLT LED DIMMING SIGNAL VEHICLE SPEED SENSOR SIG HEADLIGHTS SYSTEM HEADLIGHTS SYSTEM COMPUTER DATA LINES SYSTEM HEADLIGHTS SYSTEM EXTERIOR LIGHTS SYSTEM HEADLIGHTS SYSTEM INTERIOR LIGHTS SYSTEM INSTRUMENT CLUSTER SYSTEM HIGH BEAM SIG PARK LAMPS SUPPLY VOLTAGE HOT AT ALL TIMES HOT IN RUN HOT IN RUN OR START I/P FUSE BLOCK I/P LAMP SULLPY VOLTAGE AMBIENT LIGHT SENSOR SIG IGNITION SWITCH INTERIOR LIGHTS SYSTEM HEADLIGHTS SYSTEM LEFT TURN SIGNAL LMP SUP VOLT RIGHT TURN SIGNAL LMP SUP VOLT LOCK OFF LT BLU WIRE LT GRN WIRE LT GRN/BLK WIRE ORG/ WIRE ORG/BLK WIRE PARK BRAKE SWITCH (ON PARKING BRAKE ASSEMBLY) PASS DOOR JAMB SWITCH SIG PNK WIRE POWER DISTRIBUTION SYSTEM (RAP) INTERIOR LIGHTS SYSTEM HORNS SYSTEM PPL INTERIOR LAMP DEFEAT SW SIG PPL/WHT WIRE RAP RELAY COIL CTRL COURTESY LAMP RELAY CTRL HORN RELAY CTRL RED/WHT WIRE RUN WIRE SECURITY SYSTEM SENSOR SIG TAN/WHT WIRE TBC FUSE 15 WARNING SYTEMS TRANSMISSION SYSTEM WHT WIRE YEL WIRE

59 58 DATA CLSS 2 DATA CLSS 2 BLK WIRE BLK/WHT WIRE BODY CONTROL MODULE (ABOVE RADIO) CONVENIENCE CENTER (LEFT OF I/P FUSE BLOCK) DATA CLSS 2 DATA LINK CONNECTOR (DLC) (UNDER LEFT SIDE OF DASH) DK BLU WIRE DK GRN WIRE DRIVER INFORMATION CENTER GRY WIRE HOT AT ALL TIMES AUX POWER FUSE 7 I/P FUSE BLOCK (BEHIND LEFT SIDE OF DASH) INFLATABLE RESTRAINT SENSING, DIAGNOSTIC MODULE (UNDER DRIVER'S SEAT) INSTRUMENT PANEL CLUSTER LT BLU WIRE LT GRN WIRE ORG/ WIRE POWERTRAIN CONTROL MODULE (BELOW UNDERHOOD FUSE BLOCK, ON LEFT SIDE OF FIREWALL) PPL SPLICE PACK TRANSFER CASE SHIFT CONTROL MODULE (BEHIND LEFT KICK PANEL) WHT WIRE YEL WIRE

396 817 CRUISE ENGAGED VSS SIGNAL ANTILOCK BRAKE SYSTEM BLK WIRE BLK/WHT WIRE BRAKE FUSE 18 BRN WIRE CRUISE CONTROL MODULE (CENTER FRONT OF FIREWALL) CRUISE FUSE 6 DK BLU WIRE DK GRN/WHT WIRE GRY WIRE GRY/BLK WIRE HOT AT ALL TIMES HOT IN RUN I/P FUSE BLOCK (BEHIND LEFT SIDE OF DASH) INSTRUMENT CLUSTER SYSTEM LT BLU/BLK WIRE LT GRN/BLK WIRE MULTIFUNCTION TURN SIGNAL LEVER NCA WIRE OFF ORG/ WIRE POWERTRAIN CONTROL MODULE (PCM) (LEFT SIDE OF ENGINE COMPT) PPL PPL PPL PPL/WHT WIRE R/A S/C STOP/HAZ FUSE 1 STOPLAMP SWITCH (ABOVE BRAKE PEDAL) (SHOWN BRAKES OFF) VEHICLE SPEED SENSOR (VSS) (REAR OF TRANSMISSION) VSS HIGH VSS LOW VSS SIGNAL CRUISE ENGAGED WHT WIRE

A/C COMPRESSOR CLUTCH A/C LOW PRESSURE SWITCH A/C RELAY A/T SHIFT LOCK CONTROL SOLENOID AMBIENT AIR TEMPERATURE SENSOR BLK WIRE BLK/WHT WIRE BLOWER MOTOR SWITCH- A/C AUXILIARY BLOWER MOTOR SWITCH- HEATER AUXILIARY DRIVER SEAT ADJUSTER SWITCH BODY CONTROL MODULE (BCM) CENTER HIGH MOUNTED STOP LAMP (CHMSL) RESISTOR STEERING COLUMN GROUND- MOLDED CONVENIENCE CENTER COOLANT BYPASS VALVE SOLENOID DATA LINK CONNECTOR (DLC) DIODE 1 DRIVER INFORMATION CENTER (DIC) FUEL PUMP RELAY HALF OF STEERING COLUMN) HEADLAMP, PANEL DIMMER SWITCH IGNITION CONTROL MODULE (ICM) MASS AIR FLOW (MAF) SENSOR IGNITION KEY ALARM SWITCH IGNITION SWITCH INSTRUMENT PANEL CLUSTER (IPC) INSTRUMENT PANEL CLUSTER (IPC) CRUISE CONTROL MODULE (CCM) NCA WIRE OF STEERING COLUMN) OUTSIDE REARVIEW MIRROR SWITCH PARK/NEUTRAL POSITION (PNP) SWITCH POWERTRAIN CONTROL MODULE (PCM) REAR SEAT AUDIO (RSA) CONTROLLER (IF EQUIPPED) RELAY BLOCK 1 RELAY BLOCK 2 STARTER ENABLE RELAY TAN/WHT WIRE TOW/ HAUL SWITCH TRANSFER CASE SHIFT CONTROL MODULE TURN SIGNAL/ HAZARD FLASHER MODULE UNDERHOOD FUSE BLOCK UPFITTER ACCY RELAY VANITY MIRROR LAMP (LEFT) VANITY MIRROR LAMP (RIGHT) WHT WIRE WINDOW MASTER SWITCH- DRIVER DOOR LOCK SWITCH- DRIVER WINDSHIELD WIPER MOTOR MODULE

AUDIO AMPLIFIER AUXILIARY POWER- OUTLET- FRONT 1 AUXILIARY POWER- OUTLET- FRONT 2 BATTERY BLK WIRE BLK/WHT WIRE BLOWER MOTOR RESISTOR ASSEMBLY BLOWER MOTOR- A/C AUXILIUARY BLOWER MOTOR- HEATER AUXILIUARY BLUNT CUT) BRAKE PRESSURE DIFFERENTIAL SWITCH BREAKOUT) CENTER HIGH MOUNTED STOP LAMP (CHMSL) REAR DOOR JAMB SWITCH CIGAR LIGHTER CONVEN- IENCE CENTER COURTESY READING LAMP- CENTER DOOR LOCK RELAY DOOR LOCK SWITCH- FRONT PASSENGER DRIVER DOOR UNLOCK RELAY ELECTRONIC BRAKE CONTROL MODULE (EBCM) ENGINE COVER GROUND AIR TEMPERATURE ACTUATOR FUEL PUMP, SENDER ASSEMBLY FUSE BLOCK- UNDERHOOD HEADLAMPS RELAY HORN- RIGHT HVAC CONTROL ASSEMBLY I/P COMPARTMENT LAMP INFLATABLE RESTRAINT SENSING, DIAGNOSTIC MODULE KNOCK SENSOR (KS) SHIELD LEFT FRONT PARK/TURN SIGNAL LAMP LEFT HORN LEFT MARKER LAMP LEFT TAIL/ STOP, TURN LAMP REAR AUXILIARY POWER OUTLET LEFT BACK-UP LAMP LIFTGLASS LOCK/ UNLOCK RELAY LIFTGLASS RELEASE ACTUATOR NCA WIRE OVERHEAD CONSOLE FRONT COURTESY READING LAMP GARAGE DOOR OPENER RADIO READING LAMPS (1 OF 4) REAR WINDOW WASHER FLUID PUMP REAR WINDOW WIPER/ WASHER MODULE REAR WINDOW DEFOGGER GRID RELAY BLOCK 1 REAR WINDOW WIPER/ WASHER SWITCH REMOTE CONTROL DOOR LOCK RECEIVER RIGHT BACKUP LAMP RIGHT FRONT PARK/ TURN SIGNAL LAMP RIGHT REAR SIDE MARKER LAMP RIGHT TAIL/STOP, TURN LAMP TRAILER FOR TRAILER (BLUNT CUT) LICENSE LAMP SEAT BELT BUCKLE SWITCH UPFITTER CONNECTOR VEHICLE SPEED SENSOR (VSS) SHIELD W/ OVERHEAD CONSOLE W/O OVERHEAD CONSOLE WHT WIRE WINDOW SWITCH- FRONT PASSENGER WINDSHIELD WASHER FLUID PUMP

ABS SYSTEM AIR BAG IND BLK WIRE BLK/WHT WIRE BRAKE IND BRN WIRE BRN/WHT WIRE CHARGE IND CHECK GAUGES IND CHECK OIL IND COMPUTER DATA LINES SYSTEM COOLANT TEMP GAUGE CRUISE FUSE 6 DK BLU WIRE DK GRN/WHT WIRE DOOR AJAR IND ENGINE CONTROLS SYSTEM ENGINE OIL PRESSURE SENSOR (ON TOP REAR OF ENGINE) FUEL GAUGE GAUGES FUSE 4 GRY WIRE HIGH BEAM IND HOT AT ALL TIMES HOT IN ON HOT IN ON OR START HOT W/ HEADLAMP SW IN PARK OR HEAD I/P FUSE BLOCK (BEHIND LEFT SIDE OF DASH) I/P ILLUM VOLT IGN 1 ILLUM FUSE 14 ILLUMINATION (6 BULBS) ING 3 INSTRUMENT CLUSTER LEFT TURN IND LOW FUEL IND LT BLU WIRE MIL CONTROL ODOMETER OIL GAUGE OIL PRESS ORG/ WIRE PNK WIRE POWERTRAIN CONTROL MODULE (BELOW FUSE BLOCK, ON LEFT SIDE OF FIREWALL) RADIO BATT FUSE 19 RIGHT TURN IND SEAT BELT IND SECURITY IND SERVICE ENGINE SOON IND SPARE SPEEDOMETER GAUGE TAN/WHT WIRE TOW/HAUL IND TRANS FUSE 20 TRIP RESET VOLTS GAUGE VSS SERIAL DATA OFF/ RUN/

12 13 14 PPL 3-2 SS ECT LOW REF BATTERY CLS 2 DATA CLS 2 DATA TPS LOW REF CMP LOW REF BLK WIRE BLK/WHT WIRE BODY CONTROL MODULE (ABOVE RADIO) BRN/WHT WIRE CENTRAL SEQUENTIAL FUEL INJECTION CKP SIG CRANKSHAFT POSITION SENSOR (BEHIND AND TO THE RIGHT OF PULLEY) DK BLU WIRE DK GRN WIRE ECM I FUSE ECM-B FUSE ENGINE COOLANT TEMPERATURE SENSOR (ON LEFT SIDE OF LEFT CYLINDER HEAD) GROUND GRY WIRE HOT AT ALL TIMES HOT IN RUN, START I/P FUSE BLOCK INJECTOR 1 INJECTOR 3 INJECTOR 4 INJECTOR 5 KNOCK SENSOR (LEFT REAR OF DISTRIBUTOR) KS RETURN KS SIG LT BLU/BLK WIRE LT GRN WIRE LT GRN/BLK WIRE NCA WIRE ORG/ WIRE ORG/BLK WIRE PNK IGNITION INJECTOR 2 INJECTOR 6 WIRE PNK WIRE PNK/BLK WIRE POWERTRAIN CONTROL MODULE (ON LEFT SIDE OF FIREWALL) PPL PPL/WHT WIRE PRND A BRAKE SW PRND P PPL PRND B CMP SIG RANGE B RANGE C IGNITION BATTERY CKP LOW REF RED WIRE SENS LOW REF GROUND TAN WIRE TAN/WHT WIRE TFT LOW REF MAP LOW REF TRANS FUSE 20 UNDERHOOD FUSE BLOCK WHT WIRE YEL WIRE YEL/BLK WIRE

12 13 14 PPL BLK WIRE BLK/WHT WIRE BRN WIRE BRN/WHT WIRE CAMSHAFT POSITION SENSOR (ON SIDE OF DISTRIBUTOR) DK BLU WIRE DK GRN WIRE DK GRN/WHT WIRE FUEL PUMP RELAY GRY WIRE GRY/BLK WIRE HEATED OXYGEN SENSOR (BANK 1 SENSOR 1) (LEFT FRONT EXHAUST Y-PIPE) HEATED OXYGEN SENSOR (BANK 1 SENSOR 2) (ON EXHAUST, BETWEEN MUFFLER, CONVERTER) HEATED OXYGEN SENSOR (BANK 2 SENSOR 1) (RIGHT FRONT EXHAUST Y-PIPE) HOT IN RUN, START LT GRN WIRE NCA WIRE ORG/ WIRE ORG/BLK WIRE PARK/ NEUTRAL POSITION SWITCH (LEFT CENTER OF TRANS) PNK 2 3 WIRE PNK 4 5 WIRE PNK PNK 16 17 WIRE PNK WIRE PNK/BLK WIRE PPL PPL 7 8 9 PPL/WHT WIRE RED WIRE TAN WIRE TAN/WHT WIRE THROTTLE POSITION SENSOR (LEFT SIDE OF THROTTLE BODY) UNDERHOOD FUSE BLOCK UNDERHOOD FUSE BLOCK ENG-1 FUSE WHT WIRE YEL WIRE

1-2 SOL 19 20 21 PNK WIRE 2-3 SOL 3-2 SOL A/T FLUID PRESSURE MANUAL VALVE POSITION SWITCH ANTI-LOCK BRAKES SYSTEM PPL (ENGINE HARN 15 CM FROM FUSE BLOCK BREAKOUT) AUTOMATIC TRANSAXLE BLK WIRE BLK/WHT WIRE BRN WIRE DK BLU WIRE DK GRN WIRE DK GRN/WHT WIRE EVAPORATIVE CANISTER PURGE SOLENOID (TOP OF ENGINE, NEAR MAP SENSOR) EVAPORATIVE CANISTER VENT VALVE (UNDERSIDE OF VEHICLE, AT FUEL FILTER) GRY WIRE HOT IN RUN I/P FUSE BLOCK BRAKE FUSE 18 LT BLU WIRE LT BLU/WHT WIRE LT GRN WIRE MANIFOLD ABSOLUTE PRESSURE SENSOR (TOP OF ENGINE, NEAR IGN COIL) MASS AIRFLOW SENSOR (FRONT OF AIR INTAKE DUCT) ORG/ WIRE ORG/BLK WIRE PC SOL VALVE PNK 2 3 WIRE PNK 4 5 WIRE PNK PNK 16 17 WIRE PNK WIRE PPL PPL 7 8 9 PPL/WHT WIRE RED WIRE RED/BLK WIRE REV STOP- LIGHT SWITCH (ABOVE BRAKE PEDAL) TAN WIRE TAN/BLK WIRE TCC PMW SOL TCC SOL TFT SENSOR WHT WIRE YEL WIRE YEL/BLK WIRE

19 20 21 PNK WIRE A/C REQ A/C SYSTEM ABS SYSTEM (SPEED SIGNAL) BLK WIRE BLK/WHT WIRE BRN WIRE BRN/WHT WIRE COIL DRIVER COIL WIRE CRUISE CONTROL SYSTEM CRUISE CONTROL SYSTEM (SPEED SIGNAL) CRUISE ENG DISTRIBUTOR DK BLU WIRE DK GRN WIRE DK GRN/WHT WIRE EVAP PURGE EVAP VENT MIL CTRL 2-3 SS 1-2 SS VSS OUT VSS OUT TFT SENS SIG FUEL LEV CYC SW IN GEN F DUTY SIG IAC COIL B HI IAC COIL B LO IAC COIL A LO IAC COIL A HI GEN L GROUND GRY WIRE HOT AT ALL TIMES I/P FUSE BLOCK IAT LOW REF IDLE AIR CONTROL VALVE (LEFT REAR OF THROTTLE BODY) IGN IGNITION COIL IGNITION CONTROL MODULE (TOP OF ENGINE) FRONT OF COIL) INSTRUMENT PANEL CLUSTER INTAKE AIR TEMPERATURE SENSOR (TOP OF AIR INTAKE DUCT) LOGIC LT BLU/BLK WIRE LT BLU/WHT WIRE LT GRN WIRE LT GRN/BLK WIRE LT GRN/WHT WIRE MAF SENS SIG MAP SIG MALFUNCTION INDICATOR LAMP ORG/ WIRE PC SOL HI PC SOL LO FUEL PMP PNK WIRE POWERTRAIN CONTROL MODULE (LEFT SIDE OF FIREWALL) PPL/WHT WIRE PRND C TRANS RNG A FTP SENS SIG PNK WIRE RADIO BATT FUSE 19 RED WIRE RED/BLK WIRE STARTING/CHARGING SYSTEM TAN WIRE TAN/BLK WIRE TAN/WHT WIRE TCC SOL A/C CLU TIMING TP SIG IAT SIG IC TIMING CTRL VEHICLE SPEED SENSOR (REAR OF TRANSMISSION) VSS LOW VSS HIGH WHT WIRE WHT/BLK WIRE YEL WIRE YEL/BLK WIRE