Chevrolet Impala VIII (1999-2006) pcm/bcm cluster fuse Wiring diagrams

1-2 SHIFT SOL 3.4L 3.8L 3.8L 3.4L 5 26 66 33 16 18 56 78 68 45 46 63 MIL CTRL ECT SENSOR IN TPS IN AUTOMATIC TRANSAXLE AUTOMATIC TRANSAXLE FLUID PRESSURE MANUAL VALVE POSITION SWITCH AUTOMATIC TRANSAXLE FLUID TEMPERATURE SENSOR TCC PWM SOL 2-3 SHIFT SOL AUTOMATIC TRANSAXLE INPUT SHAFT SPEED SENSOR BLK WIRE BLK/WHT WIRE BRN WIRE BRN/WHT WIRE DK BLU WIRE DK BLU/WHT WIRE DK GRN WIRE ENGINE COOLANT TEMPERATURE SENSOR (BELOW COOLANT OUTLET, LEFT REAR OF ENG) GRN/WHT WIRE GRY WIRE GRY/WHT WIRE HOT AT ALL TIMES HOT IN ON OR START INSTRUMENT PANEL CLUSTER LEFT I/P JUNCTION BLOCK (LEFT) (LEFT END OF DASH) ABS/ PCM FUSE LT BLU WIRE LT BLU/WHT WIRE LT GRN WIRE MALFUNCTION INDICATOR LAMP MAP SENSOR OF DASH, RIGHT OF STEERING COLUMN) DATA LINK CONNECTOR ORG/ WIRE ORG/BLK WIRE PARK/NEUTRAL POSITION (PNP) SWITCH PCM FUSE PCM/BCM CLUSTER FUSE PNK WIRE POWERTRAIN CONTROL MODULE (IN AIR CLEANER BOX) PPL PRESSURE CONTROL SOL RED WIRE RED/BLK WIRE SPLICE PACK STOP LAMP SWITCH TCC/ BRAKE SWITCH TAN WIRE TCC RELEASE THROTTLE POSITION SENSOR (ON THROTTLE BODY ASSEMBLY) TRANS SOL FUSE UNDERHOOD JUNCTION BLOCK (RIGHT SIDE OF ENG COMPT) VEHICLE SPEED SENSOR (LOWER RIGHT REAR OF ENGINE COMPT, END OF TRANSAXLE) WHT WIRE YEL WIRE YEL/BLK WIRE

1317 1969 FOG LAMP RLY CTRL HEADLAMP RLY CTRL 389 1844 192 VEHICLE SPEED SIG PK BRAKE IND SUPPLY VOLTAGE FRONT FOG LAMP SW SIG 727 74 DOOR OPEN SW SIG PARK LAMP SW SIG 762 43 A/C REQUEST SIG ACCESSORY VOLTAGE AIR CONDITIONING SYSTEM BCM FUSE BLK WIRE BLK/WHT WIRE BODY CONTROL MODULE (BEHIND LEFT SIDE OF DASH, ABOVE PARKING BRAKE LEVER) BRN/WHT WIRE CLASS 2 SERIAL DATA GROUND GROUND DRL RLY CTRL CLSTR/ BCM FUSE COMPUTER DATA LINES SYSTEM COURTESY LAMP LOW CTRL KEYLESS ENTRY SERIAL DATA IGNITION 0 VOLTAGE COURTESY LAMP RLY CTRL PARK LAMP RLY CTRL BATTERY POSITIVE VOLTAGE CRUISE CONTROL SYSTEM INSTRUMENT CLUSTER SYSTEM HEADLIGHTS SYSTEM DK BLU WIRE DK BLU/WHT WIRE DK GRN WIRE DK GRN/WHT WIRE DOOR LOCKS SYSTEM EXTERIOR LIGHTS SYSTEM DR LK FUSE GRY WIRE HEADLIGHTS SYSTEM HEADLIGHTS SYSTEM DOOR LOCKS SYSTEM HEADLIGHTS SYSTEM HEADLIGHTS SYSTEM HEADLIGHTS SYSTEM HORNS SYSTEM EXTERIOR LIGHTS SYSTEM HOT AT ALL TIMES HOT IN ACC OR ON HOT IN ACC, ON OR START HOT IN ON OR START INTERIOR LIGHTS SYSTEM DOOR LOCKS SYSTEM INTERIOR LIGHTS SYSTEM EXTERIOR LIGHTS SYSTEM LEFT I/P JUNCTION BLOCK (LEFT SIDE OF DASH, BEHIND ACCESS PANEL) LH HTD ST/BCM FUSE LT BLU WIRE LT GRN WIRE LT GRN/BLK WIRE ORG/ WIRE ORG/BLK WIRE PCM/BCM CLUSTER FUSE PNK PNK WIRE PNK WIRE POWER DISTRIBUTION SYSTEM PPL PPL PPL RED/BLK WIRE STOP FUSE TAN WIRE TAN/WHT WIRE TRUNK, TAILGATE, FUEL DOORS SYSTEM ANTI-THEFT SYSTEM TRUNK, TAILGATE, FUEL DOORS SYSTEM DOOR LOCKS SYSTEM WHT WIRE YEL WIRE YEL/BLK WIRE

1500 1740 PPL IGNITION BATTERY 1746 1745 453 FUEL INJ 3 FUEL INJ 2 REF LOW 463 83 845 EBCM FEED CRUISE DISABLE FUEL INJ 5 A/T FLUID TEMP BLK WIRE BLK/WHT WIRE BRN/WHT WIRE COOLING FANS SYSTEM CRANKSHAFT POSITION SENSOR B (LOWER RIGHT SIDE OF ENGINE) DFI FUSE DK BLU WIRE DK BLU/WHT WIRE DK GRN WIRE DK GRN/WHT WIRE EVAP PURGE (PIN 77-78 NOT USED) 79 80 846 2751 FUEL INJ 6 A/C PRESS SENS FUEL INJ FUSE FUEL INJECTORS GRY WIRE GRY/BLK WIRE HOT AT ALL TIMES HOT IN ON OR START IGNITION CONTROL MODULE (TOP CENTER REAR OF ENGINE) LEFT I/P JUNCTION BLOCK (LEFT END OF DASH) ABS/ PCM FUSE LOW REF TCC BRAKE SW EGR SENS EGR CONTROL KNOCK SENS PPL LT BLU/BLK WIRE LT GRN WIRE LT GRN/BLK WIRE LT GRN/WHT WIRE MAP SENS (PIN 14-15 NOT USED) 16 17 18 19 20 21 22 451 2760 PCM GROUND IAT SENS ORG/ WIRE ORG/BLK WIRE PCM/BCM CLUSTER FUSE PNK WIRE PNK/BLK WIRE POWERTRAIN CONTROL MODULE (PCM) (IN AIR CLEANER BOX) PPL PPL (PIN 66-67 NOT USED) 68 69 70 71 72 73 772 492 TR SWITCH B MAF SENS PPL/WHT WIRE RED/BLK WIRE SPARK PLUGS TAN WIRE TAN/BLK WIRE TAN/WHT WIRE TRANS SOL FUSE UNDERHOOD JUNCTION BLOCK (BOTTOM) (RIGHT SIDE OF ENGINE COMPT) UNDERHOOD JUNCTION BLOCK (TOP) (RIGHT SIDE OF ENGINE COMPT) PCM FUSE WHT WIRE YEL WIRE YEL/BLK WIRE

A/C CLUTCH RLY (PIN 40-41 NOT USED) 42 43 44 45 46 FUEL INJ 4 A/C SYSTEM ABS/ PCM FUSE AUTOMATIC TRANSAXLE BLK WIRE BLK/WHT WIRE BRN WIRE BRN/WHT WIRE CAMSHAFT POSITION SENSOR (LEFT FRONT OF ENGINE, BELOW INTAKE PLENUM) CMP SENS CMP SENS CKP SENS CRANK RLY CRANKSHAFT POSITION SENSOR A (AT END OF CRANKSHAFT) DK BLU WIRE DK GRN WIRE DK GRN/WHT WIRE EBCM FEED PPL EVAP CAN VENT FUEL PUMP RELAY EGR VAL CNTRL MIL CONTROL EXHAUST GAS RECIRCULATION (EGR) VALVE (TOP REAR REAR OF ENGINE) FTP SENS GENERATOR GENERATOR L TERM GRN WIRE GRY WIRE GRY/BLK WIRE GRY/WHT WIRE HOT IN HOT IN ON OR START IAC A HIGH IAC VALVE A LOW PC SOL HIGH PC SOL LOW IDLE AIR CONTROL (IAC) VALVE (ON THROTTLE BODY) INSTRUMENT PANEL CLUSTER INTAKE AIR TEMPERATURE (IAT) SENSOR (IN AIR INTAKE DUCT) LEFT I/P JUNCTION BLOCK (LEFT END OF DASH) LOW REF LT BLU WIRE LT BLU/BLK WIRE LT BLU/WHT WIRE LT GRN WIRE LT GRN/BLK WIRE LT GRN/WHT WIRE MALFUNCTION INDICATOR LAMP OIL LEVEL SW CRUISE STATUS PCM (CRANK) FUSE PCM/BCM CLUSTER FUSE PNK WIRE PNK/BLK WIRE POWERTRAIN CONTROL MODULE (PCM) (IN AIR CLEANER BOX) PPL PPL/WHT WIRE RED WIRE RED/BLK WIRE RED/WHT WIRE STARTING SYSTEM TAN WIRE TAN/BLK WIRE TCC PWM SOL TFT SENS FUEL LEVEL SENS CKP SENS PPL TR SWITCH D OIL PRESS SW TRANS- MISSION INTERNAL MODE SWITCH W/ ABS WHT WIRE YEL WIRE YEL/BLK WIRE

A/T FLUID TEMP BLK WIRE BLK/WHT WIRE BRN/WHT WIRE CAMSHAFT POSITION (CMP) SENSOR (RIGHT SIDE OF ENGINE) COOLING FANS SYSTEM CRANKSHAFT POSITION (CKP) SENSOR (AT END OF CRANKSHAFT) DFI MDL FUSE DK BLU WIRE DK BLU/WHT WIRE DK GRN WIRE DK GRN/WHT WIRE EBCM FEED CRUISE DISABLE FUEL INJ 2 ECT SENS MAP SENS EVAP PURGE (PIN 77-78 NOT USED) 79 80 FUEL INJ 1 A/C PRESS SENS FUEL INJ 4 FUEL INJ 5 REF LOW FUEL INJ FUSE FUEL INJECTORS GRY WIRE HOT AT ALL TIMES HOT IN ON OR START IAC B HIGH (PIN 39-42 NOT USED) 43 44 45 46 47 48 FUEL INJ 6 2-3 SHIFT SOL IGNITION CONTROL MODULE (ICM) (TOP LEFT FRONT OF ENG) LEFT I/P JUNCTION BLOCK (LEFT END OF DASH) ABS/ PCM FUSE LT BLU WIRE LT BLU/BLK WIRE LT BLU/WHT WIRE LT GRN WIRE LT GRN/BLK WIRE LT GRN/WHT WIRE NOT USED ORG/ WIRE ORG/BLK WIRE PCM FUSE PCM/BCM CLUSTER FUSE PNK 1 2 3 WIRE PNK WIRE PNK/BLK WIRE POWERTRAIN CONTROL MODULE (PCM) (IN AIR CLEANER BOX) PPL PPL (PIN 66-67 NOT USED) 68 69 70 71 72 73 TR SWITCH B MAF SENS PPL IGNITION BATTERY PPL TCC BRAKE SW EGR SENS EGR CONTROL BANK 1 KS SIG BANK 2 KS SIG PPL/WHT WIRE RED/BLK WIRE SERIAL DATA PCM GROUND TP SENS ISS SENS LOW ISS SENS HIGH VSS HIGH VSS LOW SPARK PLUGS TAN WIRE TAN/BLK WIRE TAN/WHT WIRE TRANS SOL FUSE UNDERHOOD JUNCTION BLOCK (BOTTOM) (RIGHT SIDE OF ENGINE COMPT) UNDERHOOD JUNCTION BLOCK (TOP) (RIGHT SIDE OF ENGINE COMPT) WHT WIRE WHT/BLK WIRE YEL WIRE YEL/BLK WIRE

625 1724 418 STARTING SYSTEM A/C CLUTCH RLY (PIN 40-41 NOT USED) 42 43 44 45 46 FUEL INJ 3 A/C SYSTEM ABS/ PCM FUSE AUTOMATIC TRANSAXLE BLK WIRE BLK/WHT WIRE BRN WIRE BRN/WHT WIRE CRANK RLY BOOST SOL TCC PWM SOL DK BLU WIRE DK GRN WIRE DK GRN/WHT WIRE EBCM FEED PPL ENGINE OIL LEVEL SWITCH (ON OIL PAN) ENGINE OIL PRESSURE INDICATOR SWITCH (ABOVE STARTER) EVAP CAN VENT FUEL PUMP RELAY EGR VAL CNTRL MIL CONTROL EVAP CANISTER VENT SOLENOID (LEFT REAR WHEELWELL) EXHAUST GAS RECIRCULATION (EGR) VALVE (TOP RIGHT REAR OF ENGINE) FTP SENS (PIN 36-38 NOT USED) GENERATOR GENERATOR L TERM GRY WIRE GRY/BLK WIRE GRY/WHT WIRE HOT IN HOT IN ON OR START IAC A HIGH IAC VALVE A LOW PC SOL HIGH PC SOL LOW IDLE AIR CONTROL (IAC) VALVE (ON THROTTLE BODY ASSEMBLY) INSTRUMENT CLUSTER INTAKE AIR TEMPERATURE (IAT) SENSOR (IN AIR INTAKE DUCT) LEFT I/P JUNCTION BLOCK (LEFT END OF DASH) LT BLU/BLK WIRE LT BLU/WHT WIRE LT GRN WIRE LT GRN/BLK WIRE LT GRN/WHT WIRE MALFUNCTION INDICATOR LAMP OIL LEVEL SW CRUISE STATUS PCM (CRANK) FUSE PCM/BCM CLUSTER FUSE PNK WIRE PNK/BLK WIRE POWERTRAIN CONTROL MODULE (PCM) (IN AIR CLEANER BOX) PPL PPL/WHT WIRE RED WIRE RED/BLK WIRE TAN WIRE TAN/BLK WIRE TCC RELEASE SW (PIN 64-65 NOT USED) 66 67 68 69 TP SENS TFT SENS FUEL LEVEL SENS PPL (PIN 70-74 NOT USED) 75 76 77 78 79 80 TR SWITCH D OIL PRESS SW TRANS- MISSION INTERNAL MODE SWITCH W/ ABS WHT WIRE YEL WIRE YEL/BLK WIRE

A/T FLUID TEMP BLK WIRE BLK/WHT WIRE BRN/WHT WIRE CAMSHAFT POSITION (CMP) SENSOR (RIGHT SIDE OF ENGINE) COOLING FANS SYSTEM CRANKSHAFT POSITION (CKP) SENSOR (AT END OF CRANKSHAFT) DFI MDL FUSE DK BLU WIRE DK BLU/WHT WIRE DK GRN WIRE DK GRN/WHT WIRE EBCM FEED CRUISE DISABLE FUEL INJ 2 ECT SENS MAP SENS EVAP PURGE (PIN 77-78 NOT USED) 79 80 FUEL INJ 1 A/C PRESS SENS FUEL INJ 4 FUEL INJ 5 REF LOW FUEL INJ FUSE FUEL INJECTORS GRY WIRE HOT AT ALL TIMES HOT IN ON OR START IAC B HIGH (PIN 39-42 NOT USED) 43 44 45 46 47 48 FUEL INJ 6 2-3 SHIFT SOL IGNITION CONTROL MODULE (ICM) (TOP LEFT FRONT OF ENG) LEFT I/P JUNCTION BLOCK (LEFT END OF DASH) ABS/ PCM FUSE LT BLU WIRE LT BLU/BLK WIRE LT BLU/WHT WIRE LT GRN WIRE LT GRN/BLK WIRE LT GRN/WHT WIRE NOT USED ORG/ WIRE ORG/BLK WIRE PCM FUSE PCM/BCM CLUSTER FUSE PNK 1 2 3 WIRE PNK WIRE PNK/BLK WIRE POWERTRAIN CONTROL MODULE (PCM) (IN AIR CLEANER BOX) PPL PPL (PIN 66-67 NOT USED) 68 69 70 71 72 73 TR SWITCH B MAF SENS PPL IGNITION BATTERY PPL TCC BRAKE SW EGR SENS EGR CONTROL BANK 1 KS SIG BANK 2 KS SIG PPL/WHT WIRE RED/BLK WIRE SERIAL DATA PCM GROUND TP SENS ISS SENS LOW ISS SENS HIGH VSS HIGH VSS LOW SPARK PLUGS TAN WIRE TAN/BLK WIRE TAN/WHT WIRE TRANS SOL FUSE UNDERHOOD JUNCTION BLOCK (BOTTOM) (RIGHT SIDE OF ENGINE COMPT) UNDERHOOD JUNCTION BLOCK (TOP) (RIGHT SIDE OF ENGINE COMPT) WHT WIRE WHT/BLK WIRE YEL WIRE YEL/BLK WIRE

625 1724 418 STARTING SYSTEM A/C CLUTCH RLY (PIN 40-41 NOT USED) 42 43 44 45 46 FUEL INJ 3 A/C SYSTEM ABS/ PCM FUSE AUTOMATIC TRANSAXLE BLK WIRE BLK/WHT WIRE BRN WIRE BRN/WHT WIRE CRANK RLY BOOST SOL TCC PWM SOL DK BLU WIRE DK GRN WIRE DK GRN/WHT WIRE EBCM FEED PPL ENGINE OIL LEVEL SWITCH (ON OIL PAN) ENGINE OIL PRESSURE INDICATOR SWITCH (ABOVE STARTER) EVAP CAN VENT FUEL PUMP RELAY EGR VAL CNTRL MIL CONTROL EVAP CANISTER VENT SOLENOID (LEFT REAR WHEELWELL) EXHAUST GAS RECIRCULATION (EGR) VALVE (TOP RIGHT REAR OF ENGINE) FTP SENS (PIN 36-38 NOT USED) GENERATOR GENERATOR L TERM GRY WIRE GRY/BLK WIRE GRY/WHT WIRE HOT IN HOT IN ON OR START IAC A HIGH IAC VALVE A LOW PC SOL HIGH PC SOL LOW IDLE AIR CONTROL (IAC) VALVE (ON THROTTLE BODY ASSEMBLY) INSTRUMENT CLUSTER INTAKE AIR TEMPERATURE (IAT) SENSOR (IN AIR INTAKE DUCT) LEFT I/P JUNCTION BLOCK (LEFT END OF DASH) LT BLU/BLK WIRE LT BLU/WHT WIRE LT GRN WIRE LT GRN/BLK WIRE LT GRN/WHT WIRE MALFUNCTION INDICATOR LAMP OIL LEVEL SW CRUISE STATUS PCM (CRANK) FUSE PCM/BCM CLUSTER FUSE PNK WIRE PNK/BLK WIRE POWERTRAIN CONTROL MODULE (PCM) (IN AIR CLEANER BOX) PPL PPL/WHT WIRE RED WIRE RED/BLK WIRE TAN WIRE TAN/BLK WIRE TCC RELEASE SW (PIN 64-65 NOT USED) 66 67 68 69 TP SENS TFT SENS FUEL LEVEL SENS PPL (PIN 70-74 NOT USED) 75 76 77 78 79 80 TR SWITCH D OIL PRESS SW TRANS- MISSION INTERNAL MODE SWITCH W/ ABS WHT WIRE YEL WIRE YEL/BLK WIRE