Chevrolet Astro I (1985-2005) gry Wiring diagrams

650 442 GROUND FUSE OUTPUT ABS FUSE ABS IND. BLK WIRE BRAKE FUSE 18 BRAKE IND BRAKE PRESSURE DIFFERENTIAL SWITCH (ON BRAKE PRESSURE MODULATOR VALVE ASSEMBLY) BRN WIRE COMPUTER DATA LINES SYSTEM CRUISE CONTROL SYSTEM DK GRN WIRE FUSE OUTPUT LF WHL SPD SENS RET RF WHL SPD SENS SIG GRY WIRE HOT AT ALL TIMES HOT IN I/P FUSE BLOCK (BEHIND LEFT SIDE OF DASH) INSTRUMENT PANEL CLUSTER LEFT FRONT WHEEL SPEED SENSOR LT BLU WIRE NCA WIRE ORG/ WIRE POWER DISTRIBUTION SYSTEM PPL PPL BRAKE FLUID LVL SW PPL BRAKE SW OUTPUT SERIAL DATA RADIO BATT FUSE 19 RED WIRE RIGHT FRONT WHEEL SPEED SENSOR RUN WIRE SPLICE PACK STOP LAMP SWITCH (ABOVE BRAKE PEDAL) TAN WIRE TCC BRAKE SW/ CRUISE CTRL RELEASE SIG PPL UNDERHOOD FUSE BLOCK (ON LEFT SIDE OF FIREWALL) VEHICLE SPEED OUT VSS LF WHL SPD SENS SIG RF WHL SPD SENS RET YEL WIRE YEL/BLK WIRE

BLK WIRE BODY CONTROL MODULE (ABOVE RADIO) CLASS 2 SERIAL DATA GAUGES FUSE 4 GROUND B+ SERIAL DATA GROUND IGNITION GRY WIRE HOT AT ALL TIMES HOT IN RUN OR START I/P FUSE BLOCK (BEHIND LEFT SIDE OF DASH) INSTRUMENT PANEL CLUSTER LT GRN WIRE ORG/ WIRE ORG/BLK WIRE PASSLOCK SENSOR (IN STEERING COLUMN, NEAR LOCK CYLINDER) PNK WIRE POWER DISTRIBUTION SYSTEM POWERTRAIN CONTROL MODULE (BELOW UNDERHOOD FUSE BLOCK, ON LEFT SIDE OF FIREWALL) RADIO BATT FUSE 19 RED/WHT WIRE SECURITY HALL EFFECT SENSOR SECURITY INDICATOR SERIAL DATA SERIAL DATA LOW REF PASSLOCK SIG SPLICE PACK TAMPER HALL EFFECT SENSOR TBC FUSE 15 YEL WIRE

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

1995 VFTC A/C RELAY AIR TEMPERATURE ACTUATOR (BEHIND RIGHT SIDE OF DASH, LEFT SIDE OF AIR DUCT) AUXILIARY HEATER BLOWER MOTOR AUXILIARY HEATER BLOWER MOTOR RESISTOR (LEFT SIDE OF VEHICLE, BEHIND "B" PILLAR) AUXILIARY HEATER BLOWER MOTOR SWITCH BI-LV VENT BLEND HEAT BLK WIRE BREAKOUT) BRN WIRE CONVENIENCE CENTER (BEHIND LEFT KICK PANEL) COOLANT BYPASS VALVE SOLENOID (BEHIND RECEIVER/ DRIER) DEF DK BLU WIRE FRONT BLOWER MOTOR FRT HVAC FUSE GRY WIRE GRY/BLK WIRE HI OFF HOT AT ALL TIMES HOT IN RUN HTR A/C FUSE 12 HVAC CONTROL ASSEMBLY I/P FUSE BLOCK (BEHIND LEFT SIDE OF DASH) LO MED LT BLU WIRE OFF ORG/ WIRE PPL RED WIRE RR HTR A/C FUSE TAN WIRE UNDERHOOD FUSE BLOCK (LEFT SIDE OF FIREWALL) WHT WIRE YEL WIRE

1995 VFTC A/C COMP FUSE A/C COMP RELAY A/C COMPRESSOR CLUTCH A/C COMPRESSOR CLUTCH DIODE (IN UNDERHOOD FUSE BLOCK) A/C ENABLE RELAY A/C HIGH PRESSURE SWITCH (REAR OF A/C COMPT) A/C LOW PRESS A/C LOW PRESSURE SWITCH (ON A/C ACCUMULATOR) A/C RELAY A/C REQUEST AIR TEMPERATURE ACTUATOR (BEHIND RIGHT SIDE OF DASH, LEFT SIDE OF AIR DUCT) AUXILIARY A/C BLOWER MOTOR AUXILIARY A/C BLOWER MOTOR RESISTOR (LEFT REAR OF VEHICLE, NEAR "D" PILLAR) AUXILIARY A/C BLOWER MOTOR SWITCH AUXILIARY HEATER BLOWER MOTOR AUXILIARY HEATER BLOWER MOTOR SWITCH BLEND HEAT BLK WIRE BREAKOUT) BRN WIRE CONVENIENCE CENTER (BEHIND LEFT KICK PANEL) COOLANT BYPASS VALVE SOLENOID (BEHIND RECEIVER/ DRIER) DEF DEF MAX BLEND NORM HEAT BI-LV VENT DK BLU WIRE DK GRN WIRE DK GRN/WHT WIRE FRONT BLOWER MOTOR FRT HVAC FUSE GRY WIRE GRY/BLK WIRE HI OFF HOT AT ALL TIMES HOT IN RUN HOT IN RUN OR START HTR A/C FUSE 12 HVAC CONTROL ASSEMBLY I/P FUSE BLOCK (BEHIND LEFT SIDE OF DASH) IGN E FUSE LO MED LT BLU WIRE LT GRN WIRE OFF OFF MAX NORM BI-LV VENT ORG/ WIRE PNK WIRE POWERTRAIN CONTROL MODULE (BELOW UNDERHOOD FUSE BLOCK, ON LEFT SIDE OF FIREWALL) PPL RED WIRE RR HTR A/C FUSE TAN WIRE UNDERHOOD FUSE BLOCK (LEFT SIDE OF FIREWALL) WHT WIRE YEL WIRE

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