Chevrolet·Impala·2008 Chevrolet Impala·Wiring
Wiring diagram

2008 Chevrolet Impala — power distribution

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Power distribution

5 4 3 5 1 2 2 1 3 4 A 87 10A 30 87 85 86 25A K 200A 10A J J 25A 2A 10A B 20A 25A 10A 15A 15A 20A 15A 60A 60A 25A 20A 60A 30A 60A (8 GA- BLK/WHT) 20A UNDERHOOD FUSE BLOCK BATTERY STARTER ELECTRONIC BRAKE CONTROL MODULE (EBCM) EMERGENCY VEHICLE HEADLAMP FLASHER RADIO BODY CONTROL MODULE (BCM) TRANSMISSION CONTROL MODULE (TCM) ENGINE CONTROL MODULE (ECM) BLOWER MOTOR CONTROL MODULE GENERATOR I/P FUSE BLOCK DOOR LOCK PCB RELAY DRIVER DOOR UNLOCK PCB RELAY DOOR UNLOCK PCB RELAY TRUNK RELAY AUDIO AMPLIFIER EVAPORATIVE EMISSION (EVAP) CANISTER VENT SOLENOID VALVE DIGITAL RADIO RECEIVER INFLATABLE RESTRAINT FRONT PASSENGER PRESENCE SYSTEM (PPS) MODULE OUTSIDE REARVIEW MIRROR SWITCH INFLATABLE RESTRAINT SENSING & DIAGNOSTIC MODULE (SDM) EMERGENCY VEHICLE REAR COMPARTMENT LID LAMP RELAY HEATED SEAT CONTROL MODULE I/P FUSE BLOCK AUTOMATIC TRANSMISSION SHIFT LOCK CONTROL SOLENOID BODY CONTROL MODULE (BCM) DRIVER SEAT ADJUSTER SWITCH PASSENGER SEAT ADJUSTER SWITCH SUNROOF MOTOR PASSENGER WINDOW SWITCH DRIVER WINDOW SWITCH SUNROOF MOTOR INSIDE REARVIEW MIRROR 38 13 C2 X1 16 F2 A3 X5 11 13 3 F X1 E A X1 B3 B2 B1 J1 D D4 X302 E D 6 G H1 1 31 C3 C4 C1 C2 X2 1 B X2 X122 C X1 C B1 X3 2 X3 32 20 X1 X1 G2 X2 1 2 31 C A X3 4 E2 D2 A6 X4 D2 G2 X1 E1 F2 E1 D1 X1 G1 E3 X4 E3 F1 A F3 RED/ WHT YEL YEL RED RED RED/ WHT RED WHT RED/ RED/BLK RED/ BLK TAN TAN BLK YEL YEL YEL YEL YEL YEL YEL YEL YEL YEL YEL YEL BLK YEL/ BLK WHT RED/ RED/ WHT WHT RED/ RED/ WHT RED/ WHT RED/ WHT RED/ WHT RED/ WHT WHT RED/ WHT RED/ WHT RED/ RED/ WHT WHT RED/ WHT RED/ WHT RED/ BLK RED/ RED/ BLK RED/ WHT WHT RED/ WHT RED/ WHT RED/ WHT RED/ WHT RED/ WHT RED/ BLK RED/ BLK RED/ BLK RED/ WHT RED/ WHT RED/ RED/ WHT BLK RED/ BLK RED/ RED RED 5.3L & 3.9L: W/ IGNITION & MAIN POWER SUPPLY PROVISION W/ POLICE W/O HEADLAMP FLASHER W/ HEADLAMP FLASHER EXCEPT 5.3L: W/O IGNITION & MAIN POWER SUPPLY PROVISION (NOT USED) (W/ ABS) W/ POLICE W/ FRONT HEATED SEATS (W/ ENHANCED AUDIO SPEAKER SYSTEM) (W/ DIGITAL AUDIO) W/ ACTIVE BRAKE CONTROL W/O ACTIVE BRAKE CONTROL W/ 8 WAY DRIVER SEAT ADJUSTER W/O 8 WAY DRIVER SEAT ADJUSTER W/ DUAL READING LAMPS & W/O POWER SLIDING ROOF W/ DUAL READING LAMPS & POWER SLIDING ROOF W/ POWER SLIDING ROOF & W/O DUAL READING LAMPS 6 7 W/ POLICE W/ FLOOR SHIFTER (BLUNT CUT) IF EQUIPPED 6 7 (NOT USED) ECM/ TCM FUSE ABS MTR1 FUSE HDLP MDL FUSE ABS MTR2 FUSE INT LTS/ PNL DIM FUSE RADIO FUSE BATT 2 FUSE BATT 1 FUSE BATT 4 FUSE CABLE PRO FUSE FUSIBLE LINK HTD/ SEAT FUSE DR/LCK FUSE AIR BAG FUSE PWR/MIR FUSE AMP FUSE AUX FUSE CNSTR FUSE XM FUSE RAP RELAY PWR/SEAT CIRCUIT BREAKER S/ROOF FUSE PWR/WNDW CIRCUIT BREAKER RAP FUSE (MOUNTED TO RIGHT STRUT TOWER) (IN RIGHT FRONT KICK PANEL) (IN RIGHT FRONT KICK PANEL) (COUPE: IN BODY WIRING HARNESS, 7 CM FROM SECOND BREAKOUT TO X302) (SEDAN: IN BODY WIRING HARNESS, 10 CM FROM SECOND BREAKOUT TO X302) (COUPE: ON ROOF HARNESS, 16.5 CM FROM SECOND BREAKOUT TO X398) (SEDAN: ON ROOF HARNESS, 10 CM FROM BREAKOUT TO X398) (BELOW PASSENGER FRONT DOOR OPENING, REAR OF RIGHT "A" PILLAR) J311 J375 J364 G302 TO RT T/SIG FUSE (DIAGRAM 2 OF 4) TO FUSIBLE LINK (DIAGRAM 2 OF 4) TO S/ROOF FUSE (DIAGRAM 1 OF 4) TO CENTER SEAT ACCESSORY POWER OUTLET (DIAGRAM 2 0F 4) FROM PWR/MIR FUSE (DIAGRAM 1 OF 4)
A 87 30 10A 10A 10A 10A C 25A 15A 15A (12-GA (14-GA (12-GA 50A GRY/WHT) BLU/BLK) BLU/BLK) K (12-GA 30A 30A BLU/BLK) B UNDERHOOD FUSE BLOCK ENGINE CONTROL MODULE (ECM) TRANSMISSION CONTROL MODULE (TCM) BODY CONTROL MODULE (BCM) BODY CONTROL MODULE (BCM) TORQUE CONVERTER CLUTCH (TCC) SOLENOID VALVE 2-3 SHIFT SOLENOID VALVE 1-2 SHIFT SOLENOID VALVE AUTOMATIC TRANSAXLE SPLICE PACK SP206 INFLATABLE RESTRAINT SENSING & DIAGNOSTIC MODULE (SDM) HVAC CONTROL MODULE INFLATABLE RESTRAINT PASSENGER AIR BAG ON/OFF INDICATOR INSTRUMENT PANEL CLUSTER (IPC) 31 J2 X1 K1 X4 K4 X1 J3 X1 19 C2 H1 X4 21 X4 E2 X2 D2 J3 J2 E X100 A A A A C C B B A A A A 1 3 X4 C B B D E A B7 B5 C5 B1 B3 C1 A A A A 32 2 X1 4 20 C C C C PNK PNK PNK PNK PNK BLK/ WHT YEL RED/ WHT WHT RED/ RED/ WHT RED/ WHT PNK BLK/ WHT RED RED RED RED BLK BLK RED/ RED/ BLK BLK BLK RED/ RED/ BLK BLK BLK RED/ RED/ BLK RED/ BLK WHT RED/ WHT RED/ RED/ PNK WHT PNK PNK PNK PNK DK DK GRN BLK LT GRN BLU BLK LT BLU WHT RED/ WHT RED/ WHT RED/ WHT RED/ RED/ WHT WHT RED/ RED/ PNK PNK PNK PNK BLK BLK BLK BLK BLK BLK BLK (BLUNT CUT) (W/O FLOOR CONSOLE) (W/O FLOOR CONSOLE) W/ POLICE (W/ IGNITION & MAIN POWER SUPPLY PROVISION & POLICE) (W/ IGNITION & MAIN POWER SUPPLY PROVISION & POLICE) (BLUNT CUT AT RIGHT FRONT FLOOR) (BLUNT CUT AT RIGHT FRONT FLOOR) (BLUNT CUT AT RIGHT FRONT FLOOR) W/ FLOOR CONSOLE W/O FLOOR CONSOLE IGN MAIN PCB RELAY RT T/SIG FUSE AUX PWR FUSE LT T/SIG FUSE AIR BAG/ DISPLAY FUSE PWR DROP/ CRANK FUSE TRANS FUSE ECM IGN FUSE I/P ACCESSORY POWER OUTLET 1 I/P ACCESSORY POWER OUTLET 2 FUSIBLE LINK FUSIBLE LINK FUSIBLE LINK FUSIBLE LINK AUXILIARY FUSE BLOCK CIRCUIT BREAKER 1 CIRCUIT BREAKER 2 CIRCUIT BREAKER 3 SEO 2 RELAY SEO 1 RELAY REAR JUNCTION BLOCK CENTER SEAT ACCESSORY POWER OUTLET CENTER CONSOLE COMPARTMENT ACCESSORY POWER OUTLET CENTER CONSOLE ACCESSORY POWER OUTLET 2 CENTER CONSOLE ACCESSORY POWER OUTLET 1 (MOUNTED TO RIGHT STRUT TOWER) (EXCEPT 5.3L ON TRANSMISSION TO ENGINE BOLT, ABOVE STARTER) (5.3L: ON TRANSMISSION TO ENGINE BOLT, BELOW STARTER) (FRONT OF DASH, LEFT OF G204) (IN I/P WIRING HARNESS, 15.5 CM FROM 3RD BREAKOUT TO BRAKE PEDAL POSITION SENSOR) (IN AUTOMATIC TRANSAXLE WIRING HARNESS, 9.5 CM FROM CONNECTOR X100) (ABOVE ACCELERATOR PEDAL) (IN REAR COMPARTMENT, BEHIND RIGHT REAR WHEELHOUSE) (FRONT OF DASH, ABOVE G202) (ON I/P HARNESS, NEAR STEERING COLUMN) (SEDAN: ON FLOOR CONSOLE WIRING HARNESS, 5 CM FROM BREAKOUT TO X340) (BELOW PASSENGER FRONT DOOR OPENING, REAR OF RIGHT "A" PILLAR) J101 J250 J115 J238 J231 J375 G111 G200 G201 G302 FROM HDLP MDL FUSE (DIAGRAM 1 OF 4) TO CHMSL/BACKUP FUSE (DIAGRAM 3 OF 4) FROM UNDERHOOD FUSE BLOCK (DIAGRAM 1 OF 4) FROM AUX FUSE (DIAGRAM 1 OF 4)
30 87 30 30 10A VOLT POSITIVE BATTERY D 15A 15A 15A 60A 10A 10A C 10A 30 30 E 10A ACC RUN START START ACC RUN OFF START RUN OFF 30A 30A D 10A 25A OFF ACC OFF ACC RUN START START RUN OFF ACC IGN 1 VOLT ACC VOLT ON/OFF/ VOLT CRANK 5 VOLT BATTERY VOLT POSITIVE REFERENCE UNDERHOOD FUSE BLOCK FOG LP PCB RELAY BODY CONTROL MODULE (BCM) SPLICE PACK JX206 GARAGE DOOR OPENER VEHICLE COMMUNICATION INTERFACE MODULE (VCIM) SECONDARY AIR INJECTION (AIR) PUMP SOLENOID RELAY SECONDARY AIR INJECTION (AIR) PUMP RELAY DATA LINK CONNECTOR (DLC) INSTRUMENT PANEL CLUSTER (IPC) HVAC CONTROL MODULE REMOTE CONTROL DOOR LOCK RECEIVER (RCDLR) LEFT SPOT LAMP RIGHT SPOT LAMP UNDERHOOD FUSE BLOCK REAR DEFOG RELAY WIPER PCB RELAY FAN 3 RELAY FAN 1 RELAY WIPER HIGH PCB RELAY A/C CMPRSR RELAY DRL PCB RELAY LOW BEAM PCB RELAY HIGH BEAM PCB RELAY THEFT DETERRENT MODULE BODY CONTROL MODULE (BCM) X4 F3 1 X1 15 X2 B2 X1 D2 B3 E2 B3 A4 D1 B2 A A L K J H 4 1 10 X1 X4 4 2 2 X2 G 16 X4 2 6 10 X4 G1 X2 B1 1 1 3 2 X1 14 21 5 2 4 3 X3 WHT RED/ WHT RED/ WHT RED/ WHT RED/ WHT RED/ RED/ WHT WHT RED/ WHT RED/ RED/ WHT WHT RED/ WHT RED/ RED/ WHT RED/ WHT RED/ WHT NCA NCA RED/ BLK RED/ WHT RED/ RED/ RED/ WHT WHT WHT RED/ WHT WHT RED/ WHT RED/ RED/ WHT RED/WHT RED/ WHT RED/WHT WHT RED/ WHT/ BLK RED/ WHT RED/ WHT PNK BRN BRN PNK BRN WHT WHT BLK WHT RED/ WHT/ W/ GARAGE DOOR OPENER W/O ONSTAR W/ ONSTAR W/O GARAGE DOOR OPENER W/ ONSTAR & GARAGE DOOR OPENER W/ POLICE (SULEV) (SULEV) AIR SOL FUSE AIR PUMP FUSE CHMSL/ BACKUP FUSE LT SPOT FUSE INT LIGHTS FUSE RT SPOT FUSE ONSTAR FUSE DISPLAY FUSE FAN 1 FUSE FAN 2 FUSE WPR FUSE RVC SEN FUSE BCM FUSE IGNITION SWITCH KEY IN IGNITION SWITCH (MOUNTED TO RIGHT STRUT TOWER) (ON I/P HARNESS, NEAR STEERING COLUMN) (MOUNTED TO RIGHT STRUT TOWER) (ON STEERING COLUMN HARNESS, BETWEEN BCM CONNECTOR C1 & IGNITION SWITCH) J204 TO DRL PCB RELAY (DIAGRAM 3 OF 4) FROM IGN MAIN PCB RELAY (DIAGRAM 2 OF 4) TO PWR/TRN RELAY (DIAGRAM 4 OF 4) FROM RT SPOT FUSE (DIAGRAM 3 OF 4)
85 86 86 85 87 30 86 85 87 30 20A G 20A E 15A 86 85 15A G 15A UNDERHOOD FUSE BLOCK FUEL/ PUMP RELAY STRTR RELAY WS WASH PCB RELAY PARK LP PCB RELAY HORN PCB RELAY ENGINE CONTROL MODULE (ECM) IGNITION CONTROL MODULE (ICM) FUEL INJECTOR 6 FUEL INJECTOR 2 FUEL INJECTOR 4 FUEL INJECTOR 7 FUEL INJECTOR 4 FUEL INJECTOR 3 FUEL INJECTOR 8 IGNITION COIL 4 IGNITION COIL 8 IGNITION COIL 3 IGNITION COIL 7 FUEL INJECTOR 3 FUEL INJECTOR 5 FUEL INJECTOR 1 IGNITION COIL 6 IGNITION COIL 1 FUEL INJECTOR 5 IGNITION COIL 2 FUEL INJECTOR 1 FUEL INJECTOR 6 FUEL INJECTOR 2 IGNITION COIL 5 UNDERHOOD FUSE BLOCK A/C CMPRSR RELAY FAN 3 RELAY FAN 1 RELAY FAN 2 RELAY SECONDARY AIR INJECTION (AIR) PUMP SOLENOID RELAY SECONDARY AIR INJECTION (AIR) PUMP RELAY HEATED OXYGEN SENSOR (HO2S) 1 MASS AIR FLOW (MAF)/ INTAKE AIR TEMPERATURE (IAT) SENSOR EVAPORATIVE EMISSION (EVAP) CANISTER PURGE SOLENOID VALVE HEATED OXYGEN SENSOR (HO2S) 2 CYLINDER SHUTOFF SOLENOID 2 CYLINDER SHUTOFF SOLENOID 1 CYLINDER SHUTOFF SOLENOID 4 CYLINDER SHUTOFF SOLENOID 3 VALVE LIFTER OIL MANIFOLD (VLOM) ASSEMBLY X1 B4 B2 A F A D D A A D D A A A A A A A A B1 A6 13 X2 47 X1 X1 40 X1 59 A D D A D D X1 B5 A8 E B B3 D D A A5 PNK/ BLK BLK PNK/ BLK PNK/ BLK PNK/ PNK/ BLK PNK/BLK BLK BLK PNK/ PNK/ PNK/ BLK PNK PNK/ BLK PNK PNK BLK BLK PNK/ PNK/ PNK PNK PNK PNK PNK/ BLK PNK PNK PNK BLK PNK/ PNK PNK PNK/ BLK BRN PNK/BLK PNK/ BLK PNK PNK BLK PNK/ PNK PNK PNK BLK PNK/ BLK PNK/ PNK/ BLK BLK PNK/ PNK/ BLK BLK PNK/ PNK/ BLK BLK PNK/ PNK/ BLK NCA PNK/ BLK NCA BLK PNK/ BLK PNK/ EXCEPT 5.3L EXCEPT 5.3L 5.3L 5.3L (EXCEPT 5.3L) (5.3L) (SULEV) (SULEV) (5.3L) PWR/TRN RELAY ETC/ECM FUSE INJ 2 FUSE INJ 1 FUSE EMISSIONS 2 FUSE EMISSIONS 1 FUSE (MOUNTED TO RIGHT STRUT TOWER) (IN ENGINE WIRING HARNESS, 5 CM FROM BREAKOUT TO FUEL INJECTOR 3) (IN ENGINE WIRING HARNESS, 5 CM FROM BREAKOUT TO FUEL INJECTOR 4) (ON FUEL INJECTOR WIRING HARNESS) (ON IGNITION CONTROL MODULE WIRING HARNESS) (ON IGNITION CONTROL MODULE WIRING HARNESS) (MOUNTED TO RIGHT STRUT TOWER) J108 J109 J109 J106 J107 FROM A/C CMPRSR RELAY (DIAGRAM 3 OF 4) TO EMISSIONS 1 FUSE (DIAGRAM 4 OF 4) FROM INJ 2 FUSE (DIAGRAM 4 OF 4)