Buick·Lacrosse·2006 Buick LaCrosse·Wiring
Wiring diagram

2006 Buick LaCrosse — power distribution

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Power distribution

1 2 1 2 3 4 4 3 A 5A 50A 10A 10A 10A 10A 25A 10A 10A 15A 10A 15A 30 15A 25A 40A 30A 40A 25A 20A 15A 20A 25A 20A 50A 40A (8 GA- BLK/WHT) 10A UNDERHOOD FUSE BLOCK BATTERY STARTER GENERATOR BODY CONTROL MODULE (BCM) ELECTRONIC BRAKE CONTROL MODULE (EBCM) BLOWER MOTOR CONTROL PROCESSOR SECONDARY AIR INJECTION (AIR) PUMP RELAY POWERTRAIN CONTROL MODULE (PCM) ENGINE CONTROL MODULE (ECM) R/ DEFOG RELAY PASSENGER SEAT ADJUSTER SWITCH OUTSIDE REAR VIEW MIRROR SWITCH DRIVER SEAT LUMBAR SWITCH DRIVER SEAT ADJUSTER SWITCH BODY CONTROL MODULE (BCM) INSIDE REARVIEW MIRROR PASSENGER HEATED SEAT RELAY DRIVER WINDOW SWITCH FRONT PASSENGER WINDOW SWITCH SUNROOF MOTOR DRIVER HEATED SEAT RELAY PRK/ LAMP RELAY I/P FUSE BLOCK DATA LINK CONNECTOR (DLC) BODY CONTROL MODULE (BCM) PARK SWITCH INSTRUMENT PANEL CLUSTER (IPC) RADIO EVAPORATIVE EMISSION (EVAP) CANISTER VENT SOLENOID HVAC CONTROL MODULE AUDIO AMPLIFIER VEHICLE COMMUNICATION INTERFACE MODULE (VCIM) REMOTE CONTROL DOOR LOCK RECEIVER (RCDLR) INFLATABLE RESTRAINT FRONT PASSENGER PRESENCE SYSTEM (PPS) MODULE DIGITAL RADIO RECEIVER A C2 B6 C1 1 C10 D 36 C2 C1 A1 6 3 D1 C4 A3 F6 C1 B10 C2 E4 F9 C2 C1 F5 C1 A A2 16 15 C1 C1 E B1 C1 16 1 C1 F7 E6 C5 M1 N1 E8 C1 50 52 12 C1 51 C2 D9 C1 20 C1 6 C1 D12 N1 14 13 D2 K3 J3 F3 C A C2 E 13 C2 E2 F2 F1 M1 N3 M3 C2 49 A5 C1 F10 46 G E D A2 A2 C2 E5 E12 E9 D10 F9 F5 B1 C1 C1 D5 C5 C4 C2 A1 NCA ORG ORG YEL WHT ORG ORG ORG ORG ORG ORG YEL YEL YEL ORG ORG ORG YEL YEL YEL ORG YEL YEL YEL BLK ORG ORG ORG ORG YEL YEL ORG ORG RED ORG ORG ORG ORG ORG ORG ORG RED ORG ORG ORG ORG ORG ORG ORG BLK ORG RED RED RED RED RED RED ORG ORG YEL ORG ORG ORG ORG ORG ORG ORG RED RED RED RED RED RED 3.8L 3.6L (W/ ABS) (SULEV) W/ INSIDE REAR VIEW MIRROR W/ SUNROOF W/O SUNROOF (IF EQUIPPED) W/O DRIVER POWER LUMBAR CONTROL SEAT W/ DRIVER POWER LUMBAR CONTROL SEAT (IF EQUIPPED) (IF EQUIPPED) W/O DIGITAL AUDIO SYSTEM W/ DIGITAL AUDIO SYSTEM W/O DIGITAL AUDIO SYSTEM (W/ 9 SPEAKER SYSTEM) AUTOMATIC A/C MANUAL A/C (IF EQUIPPED) FUSIBLE LINK AIR PUMP FUSE 25 BATT MAIN 4 FUSE 30 PCM/ ETC FUSE 16 ABS MTR FUSE 31 ABS SOL FUSE 19 WASHER/ RVC FUSE 6 BATT MAIN 1 FUSE 26 BATT MAIN 2 FUSE 27 BATT MAIN 3 FUSE 28 PWR/ SEAT CIRCUIT BREAKER HTD/ SEAT FUSE PWR/ MIR FUSE PWR WNDW CIRCUIT BREAKER DR/LCK TRUNK FUSE S/ROOF FUSE RAP RELAY HAZRD FUSE PRK/LAMP FUSE HVAC FUSE CANISTER FUSE PRK/ SWITCH FUSE CHMSL/ BKUP FUSE INT ILLUM FUSE RFA/ MOD FUSE RDO AMP FUSE ONSTAR/ ALDL FUSE CLSTR FUSE (MOUNTED TO RIGHT STRUT TOWER) (APPROXIMATELY 4.5 CM FROM BREAKOUT TO SEAT LUMBAR SWITCH DRIVER, TOWARD INLINE CONNECTOR C311) (IN HEADLINER HARN, AT RIGHT FRONT OF HEADLINER) (BEHIND LEFT SIDE OF DASH) S394 S331 S395 S400 TO TCM FUSE 8 (DIAGRAM 2 OF 4)
1 2 2 1 A START RUN LOCK ACC START LOCK ACC RUN START RUN LOCK ACC 15A SIGNAL SWITCH IGNITION KEY IN VOLTAGE IGNITION 3 IGNITION 1 VOLTAGE CRANK VOLTAGE REFERENCE 12 VOLT C D C 10A 2A 10A B 10A 10A 10A 10A 25A UNDERHOOD FUSE BLOCK CRANK RELAY 48 I/P FUSE BLOCK TRANSMISSION CONTROL MODULE (TCM) ELECTRONIC BRAKE CONTROL MODULE YAW & LATERAL ACCELERATION SENSOR STEERING ANGLE SENSOR BODY CONTROL MODULE POWERTRAIN CONTROL MODULE (PCM) ENGINE CONTROL MODULE (ECM) BODY CONTROL MODULE (BCM) A/C COMP RELAY 38 INSIDE AIR TEMPERATURE SENSOR INFLATABLE RESTRAINT PASSENGER AIRBAG ON/OFF INDICATOR TRANSMISSION CONTROL MODULE (TCM) I/P FUSE BLOCK INFLATABLE RESTRAINT STEERING WHEEL MODULE COIL ELECTRONIC COMPASS MODULE INFLATABLE RESTRAINT SENSING & DIAGNOSTIC MODULE 2-3 SHIFT SOLENOID VALVE 1-2 SHIFT SOLENOID VALVE TORQUE CONVERTER CLUTCH (TCC) SOLENOID VALVE TRANSMISSION CONTROL MODULE (TCM) ENGINE CONTROL MODULE (ECM) POWERTRAIN CONTROL MODULE (PCM) POWERTRAIN CONTROL MODULE (PCM) REAR OBJECT SENSOR CONTROL MODULE HVAC CONTROL MODULE INFLATABLE RESTRAINT FRONT PASSENGER PRESENCE SYSTEM MODULE AUTOMATIC TRANSMISSION VOICE RECORDER/ CRUISE SWITCH ASSEMBLY 13 2 4 31 24 C1 11 C2 58 24 C1 C2 3 C A B9 C2 B4 C1 C A C1 32 A5 C1 A2 C100 E12 C1 C1 C2 2 C2 B9 1 A9 C275 D C2 D2 D11 C1 B7 A7 A6 A3 C277 D 13 1 A10 1 C1 40 E A A A E8 E7 C5 C6 A5 A6 F12 C1 18 F9 C1 C2 B6 4 6 3 7 5 23 22 21 25 B3 C1 3 A12 A7 C8 A8 C7 M4 C1 D1 C1 19 B9 8 3 2 A9 A11 C2 B5 D9 BRN PNK YEL YEL PNK BRN BRN BRN BRN BRN PNK PNK BLK ORG BLK ORG BLK BLK NCA ORG NCA ORG BRN BRN BLK/WHT BLK/WHT WHT PNK PNK PNK PNK PNK YEL YEL BLK BLK PNK LT GRN RED RED RED RED BRN BRN BRN WHT/ BLK BLK WHT/ BRN PNK YEL BLK WHT/ BLK/ BLK/WHT PNK PNK PNK PNK PNK PNK PNK PNK (3.6L) (W/ ABS) (W/ ABS) (W/ ABS) 3.8L 3.6L (3.6L) (3.8L) 3.8L 3.6L AUTOMATIC A/C 3.8L 3.6L (3.6L) W/ PARK ASSIST AUTOMATIC A/C MANUAL A/C IGN 1 RELAY 37 AUX PWR FUSE 10 ABS FUSE 23 PCM FUSE 15 TCM FUSE 8 CIGAR LIGHTER AUXILIARY POWER OUTLET IGNITION SWITCH KEY IN IGNITION SWITCH P/TRAIN RELAY 40 A/C CLUTCH FUSE 13 DISPLAY FUSE 18 SIR FUSE 9 TRANS SOL FUSE 21 CRUISE FUSE (MOUNTED TO RIGHT STRUT TOWER) (BEHIND LEFT SIDE OF DASH) (IN STEERING COLUMN WIRING HARNESS, NEAR IGNITION SWITCH) (CENTER OF DASH CROSS BEAM, BEHIND RADIO) (MOUNTED TO BANK 1 CYLINDER HEAD, ABOVE EXHAUST MANIFOLD) (LOWER LEFT FRONT OF ENGINE, ON TRANSMISSION STUD, NEAR STARTER) (IN RIGHT DOOR SILL, FORWARD OF RIGHT FRONT SEAT) (LEFT SIDE OF DASH, AT BASE OF STEERING COLUMN) (BEHIND LEFT SIDE OF DASH) (INSIDE TRANSMISSION HOUSING, APPROXIMATELY 19 CM FROM INLINE CONNECTOR C113) (3.8L) S101 (3.6L) S116 S213 S406 S200 S214 S115 G115 G113 G302 G200 G202 FROM WASHER/RVC FUSE 6 (DIAGRAM 1 OF 4) TO A/C CLUTCH FUSE (DIAGRAM 2 OF 4) FROM IGN 1 RELAY (DIAGRAM 2 OF 4) TO FAN 2 FUSE (DIAGRAM 3 OF 4) TO ETC FUSE 17 (DIAGRAM 3 OF 4)
E 85 30 85 10A D 30A 30A 10A 15A 40A 25A 15A B 15A THROTTLE ACTUATOR CONTROL (TAC) MODULE MASS AIR FLOW (MAF)/ INTAKE AIR TEMPERATURE (IAT) SENSOR HEATED OXYGEN SENSOR (HO2S) 2 EVAPORATIVE EMISSION (EVAP) CANISTER PURGE SOLENOID VALVE MASS AIR FLOW (MAF)/ INTAKE AIR TEMPERATURE (IAT) SENSOR SECONDARY AIR INJECTION (AIR) SOLENOID RELAY SECONDARY AIR INJECTION (AIR) PUMP RELAY ENGINE CONTROL MODULE (ECM) UNDERHOOD FUSE BLOCK FAN 1 RELAY 42 FAN 3 RELAY 43 WIPER RELAY 45 FUEL PP RELAY 41 FOG LP RELAY 36 HDM BEAM MODULE 35 HORN RELAY 39 FAN 2 RELAY 46 CRANK RELAY 48 HI BEAM RELAY 34 E C1 E8 B A F8 2 C2 17 1 G19 G20 A12 K19 K18 K15 A18 A19 C9 C10 M2 K4 E14 K7 K8 18 C11 PNK PNK PNK PNK PNK PNK PNK PNK PNK PNK PNK PNK PNK PNK PNK 3.8L 3.6L SULEV 3.8L 3.6L ETC FUSE 17 EMISSION FUSE 12 FUEL PP FUSE 22 HORN FUSE 11 FAN 1 FUSE 29 FOG LPS FUSE 7 STARTER FUSE 33 WIPER/WS FUSE 5 FAN 2 FUSE 32 (ON ENGINE WIRING HARNESS, AT REAR OF ENGINE) (MOUNTED TO RIGHT STRUT TOWER) S117 TO ELEK IGN FUSE 24 (DIAGRAM 4 OF 4) FROM P/TRAIN RELAY 40 (DIAGRAM 2 OF 4) FROM P/TRAIN RELAY 40 (DIAGRAM 2 OF 4)
15A 15A 15A E 15A 15A 15A UNDERHOOD FUSE BLOCK HEATED OXYGEN SENSOR (HO2S) 1 HEATED OXYGEN SENSOR (HO2S) 2 IGNITION CONTROL MODULE (ICM) FUEL INJECTOR 2 FUEL INJECTOR 1 FUEL INJECTOR 4 FUEL INJECTOR 5 FUEL INJECTOR 3 FUEL INJECTOR 6 HEATED OXYGEN SENSOR (HO2S) 1 CAMSHAFT POSITION (CMP) ACTUATOR SOLENOID INTAKE BANK 2 EVAPORATIVE EMISSIONS (EVAP) CANISTER PURGE SOLENOID VALVE CAMSHAFT POSITION (CMP) ACTUATOR SOLENOID EXHAUST BANK 2 CAMSHAFT POSITION (CMP) ACTUATOR SOLENOID INTAKE BANK 1 CAMSHAFT POSITION (CMP) ACTUATOR SOLENOID EXHAUST BANK 1 FUEL INJECTOR 4 IGNITION COIL 1 IGNITION COIL 2 FUEL INJECTOR 6 IGNITION COIL 5 FUEL INJECTOR 1 FUEL INJECTOR 3 FUEL INJECTOR 5 IGNITION COIL 4 IGNITION COIL 3 IGNITION COIL 6 FUEL INJECTOR 2 1 1 1 1 1 3 A A A 2 2 2 A A 2 2 A 2 C1 D11 A11 A7 C1 D11 D D A A A11 A A A A A7 P BLK PNK/ BLK PNK/ BLK PNK/ PNK/ BLK BLK PNK/ PNK/ BLK BLK PNK/ BLK PNK/ PNK/BLK WHT WHT WHT BLK PNK/ WHT PNK/ BLK BLK PNK/ PNK/BLK PNK/ BLK PNK WHT WHT WHT BLK PNK/ BLK PNK/ BLK PNK/ WHT PNK NCA PNK PNK PNK PNK PNK PNK PNK PNK PNK 3.8L 3.6L FUEL INJ FUSE 20 ELEK IGN FUSE 24 02 SSR FUSE 14 FUEL INJ FUSE 20 ELEK IGN FUSE 24 02 SSR FUSE 14 (ENGINE WIRING HARNESS, ON TOP OF ENGINE, APPROXIMATELY 8 CM FROM BREAKOUT TO FUEL INJECTOR 3, TOWARDS FUEL INJECTOR 5) (MOUNTED TO RIGHT STRUT TOWER) (IN ENGINE WIRING HARNESS, APPROXIMATELY 5.5 CM FROM BREAKOUT TO ENGINE CONTROL MODULE) (IN ENGINE WIRING HARNESS APPROXIMATELY 5 CM FROM IGNITION COIL 1 TOWARDS IGNITION COIL 3) (IN ENGINE WIRING HARNESS, NEAR INJECTOR COILS) (IN FUEL INJECTOR WIRING HARNESS) (IN FUEL INJECTOR WIRING HARNESS) S109 S110 S106 S103 S108 S104 FROM EMISSION FUSE 12 (DIAGRAM 3 OF 4)