Buick·Lacrosse·2010 Buick LaCrosse·Wiring
Wiring diagram

2010 Buick LaCrosse — power distribution

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Power distribution

5A E 20A 25A 30A 5A 15A 30A 30A 25A 30A 20A 10A 10A 15A 5A 10A 15A 30A 60A 30 30A 300A 250A D C B A 100A 100A 100A 100A BATTERY STARTER MOTOR GENERATOR STARTER RELAY HEADLAMP CONTROL MODULE RIGHT HEADLAMP HORIZONTAL MOTOR LEFT HEADLAMP HORIZONTAL MOTOR POWER STEERING CONTROL MODULE ELECTRONIC BRAKE CONTROL MODULE DRIVER SEAT LUMBAR SUPPORT SWITCH CONTROL SOLENOID VALVE ASSEMBLY SUNROOF SUNSHADE MOTOR MODULE ENGINE CONTROL MODULE SUNROOF CONTROL MODULE SEAT HEATING CONTROL MODULE SEAT MEMORY CONTROL MODULE LEFT HEADLAMP RIGHT HEADLAMP UNDERHOOD FUSE BLOCK ELECTRONIC BRAKE CONTROL MODULE PASSENGER WINDOW MOTOR RIGHT REAR WINDOW MOTOR BRAKE BOOSTER PUMP MOTOR RELAY DRIVER WINDOW MOTOR AUDIO AMPLIFIER FUEL PUMP CONTROL MODULE LEFT REAR WINDOW MOTOR BODY CONTROL MODULE PARKING BRAKE CONTROL MODULE EVAPORATIVE EMISSION VENT SOLENOID VALVE X1 X1 X1 X2 63 9 X2 52 56 X2 X1 1 10 X2 74 71 72 68 33 X1 36 70 42 38 X2 73 69 2 27 37 X1 X3 X2 27 44 41 34 2 X301 2 1 X4 B X1 X1 4 20 X4 X5 4 1 1 8 8 X700 X800 2 2 X600 2 2 X500 25 A 5 M X403 B 32 1 B X120 B 1 X118 1 3 X301 G A X398 F 1 1 1 X4 A X3 X2 X7 X6 90 X200 89 X5 X4 X1 RED/WHT RED RED/WHT RED/WHT RED/WHT RED/WHT RED/GRN RED/GRN RED/WHT RED/WHT RED/WHT RED/WHT RED/WHT RED/WHT RED/WHT RED/WHT RED/WHT RED/WHT RED/WHT RED/WHT RED/WHT RED/WHT RED/WHT RED/BLK RED/WHT RED/BLK RED/WHT RED/BLK RED/BLK RED/BLU RED/WHT RED/WHT RED/YEL RED/YEL RED/WHT RED/WHT RED/WHT RED/WHT RED/YEL RED/BLK RED/WHT RED/WHT RED/WHT RED/WHT RED/WHT RED/WHT RED/WHT RED/BLK RED/WHT RED/BLK RED RED RED RED/WHT RED/YEL RED/WHT RED/WHT RED/BLU RED/BLK RED RED W/O MEMORY W/ MEMORY (2.4L & 3.0L) (3.6L) (3.0L & 3.6L) (2.4L) (IF EQUIPPED) (IF EQUIPPED) (IF EQUIPPED) (IF EQUIPPED) (PREMIUM AUDIO) BATTERY FUSE BLOCK STRT FUSE UEC FUSE IEC-2 FUSE REC-2 FUSE REC-1 FUSE IEC-1 FUSE STRTR FUSE VARIABLE EFFORT STEERING FUSE ABS PUMP FUSE ECM BATT FUSE LUM LT FUSE AFS IGN FUSE S/ROOF FUSE AFS BATT FUSE TCM BATT FUSE HTD/SEAT FUSE BRK VAC PUMP FUSE FSCM FUSE EPB FUSE BCM FUSE RVC BATT FUSE ABS VLV FUSE CNSTR VENT FUSE REAR PWR WNDW FUSE WNDW FRT FUSE AMP FUSE (TOP OF BATTERY) (127 MM FROM BREAKOUT TO X398) (LEFT SIDE OF BATTERY) J300 TO INSTRUMENT PANEL FUSE BLOCK (DIAGRAM 3 OF 5) TO INSTRUMENT PANEL FUSE BLOCK (DIAGRAM 2 OF 5) TO REAR BODY FUSE BLOCK (DIAGRAM 4 OF 5) TO REAR BODY FUSE BLOCK (DIAGRAM 4 OF 5) TO IGNITION MAIN RELAY (DIAGRAM 2 OF 5)
1 2 1 2 A 30 10A 5A 30 86 85 H G K L J 10A 30A 10A 5A 5A 10A 15A 15A 7.5A 2A 30A 30A 87 F F E 10A 5A 5A 5A 7.5A 7.5A 5A 30A ENGINE CONTROL MODULE RELAY UNDERHOOD FUSE BLOCK AIR QUALITY SENSOR INFLATABLE RESTRAINT SENSING & DIAGNOSTIC MODULE ENGINE CONTROL MODULE HVAC CONTROL MODULE INSTRUMENT CLUSTER FUEL PUMP CONTROL MODULE CONTROL SOLENOID VALVE ASSEMBLY MASS AIR FLOW SENSOR/INTAKE AIR TEMPERATURE SENSOR BRAKE BOOSTER VACUUM SWITCH INSIDE REARVIEW MIRROR REARVIEW CAMERA HEADLAMP LOW BEAM RELAY WINDSHIELD WIPER RELAY WINDSHIELD WIPER SPEED CONTROL RELAY WINDSHIELD WASHER PUMP RELAY FRONT FOG LAMP RELAY REAR DEFOGGER RELAY HORN RELAY COOLING FAN LEFT LOW SPEED RELAY HEADLAMP HIGH BEAM RELAY RIGHT COOLING FAN HIGH SPEED RELAY UNDERHOOD FUSE BLOCK INSTRUMENT PANEL FUSE BLOCK DATA LINK CONNECTOR INFLATABLE RESTRAINT SENSING & DIAGNOSTIC MODULE INSTRUMENT CLUSTER HVAC CONTROL MODULE BODY CONTROL MODULE RADIO/ HVAC CONTROLS INFO DISPLAY MODULE MULTIMEDIA PLAYER INTERFACE MODULE HEAD UP DISPLAY PASSENGER PRESENCE DETECTION MODULE X1 X1 31 X108 X2 1 8 A6 X407 X201 23 40 47 32 41 25 42 44 45 20 43 X1 1 X1 1 10 4 1 X2 X307 41 X200 40 A 20 9 X1 3 X1 4 16 X1 A 5 43 X1 37 3 6 2 1 1 X2 31 81 X1 15 X2 X200 44 9 29 X2 X3 20 26 X2 X200 69 19 X2 X1 54 51 13 12 15 4 4 17 X1 68 X200 8 X3 14 X2 41 X1 17 2 5 3 1 3 2 GRY GRY YEL RED/WHT RED/WHT RED/WHT RED/WHT RED/WHT RED/WHT RED/WHT RED/WHT RED YEL BLU/ WHT RED/ RED/ WHT RED/BLK RED/WHT RED/BLK RED/WHT RED/WHT RED/WHT RED/WHT RED/BLK RED/BLK BLK PNK PNK PNK RED PNK PNK PNK PNK PNK PNK PNK PNK PNK PNK PNK PNK PNK PNK PNK PNK PNK PNK PNK PNK PNK BLK YEL W/ AUTOMATIC AIR RECIRCULATION & SENSOR INDICATOR W/ SIDE OBSTACLE DETECTION & SENSOR INDICATOR 3.6L W/O LIGHT SENSITIVE MIRROR INSIDE REARVIEW W/ LIGHT SENSITIVE MIRROR INSIDE REARVIEW (NOT USED) (3.0L & 3.6L) (2.4L) 2.4L & 3.0L 3.6L (W/ AUXILIARY TEMPERATURE CONTROL A/C) W/ ELECTRONIC CONTROL A/C W/ AUXILIARY TEMPERATURE CONTROL A/C (IF EQUIPPED) (W/ HIGH INTENSITY DISCHARGE) W/ AUDIO INTERFACE (IF EQUIPPED) IGNITION MAIN RELAY I/P RUN/ CRNK FUSE BODY RUN/ CRNK FUSE AIR BAG MDL FUSE ECM IGN FUSE MAF FUSE CLSTR IGN FUSE TRANS IGN/FSCM FUSE SBZ IGN FUSE WPR FUSE COOL FAN K2 FUSE COOL FAN K1 FUSE AOS FUSE DISPLAY FUSE HVAC/ CNTRL FUSE DLIS FUSE AIR BAG FUSE IPC FUSE BCM 3 FUSE DLC FUSE BCM 2 FUSE ACDC INV FUSE (LEFT SIDE OF BATTERY) (205 MM FROM BREAKOUT TO INLINE TO LEFT FRONT DOOR) (LEFT FRONT OF ENGINE COMPT) (LEFT SIDE OF BATTERY) (LOWER LEFT SIDE OF DASH) (65 MM FROM BREAKOUT TO DASH) J102 J326 J206 G101 TO WINDSHIELD WASHER PUMP RELAY (DIAGRAM 2 OF 5) FROM CNSTR VENT FUSE (DIAGRAM 1 OF 5) TO BODY CONTROL MODULE (DIAGRAM 5 OF 5) TO OSRVM/UGDO/ WNDW SW FUSE (DIAGRAM 5 OF 5) FROM ENGINE CONTROL MODULE RELAY (DIAGRAM 2 OF 5) FROM BATTERY FUSE BLOCK (DIAGRAM 1 OF 5) TO BATT FUSE (DIAGRAM 3 OF 5) TO IGNITION SWITCH (DIAGRAM 5 OF 5) TO ACCESSORY DC/AC POWER INVERTER MODULE (DIAGRAM 3 OF 5)
B 15A 15A 15A 40A 25A 25A 30A 15A L B+ 110V AC 120 VAC PHASE B GND 120 VAC INVERTER CTRL 20A 20A 15A 7.5A 10A J 25A REAR COMPARTMENT LID RELEASE RELAY INSTRUMENT PANEL FUSE BLOCK JX201 RADIO TELEMATICS COMMUNICATIONS INTERFACE CONTROL MODULE JX201 TRANSMISSION SHIFT LEVER POSITION INDICATOR TRANSMISSION SHIFT LEVER BODY CONTROL MODULE INSTRUMENT PANEL FUSE BLOCK BLOWER MOTOR CONTROL MODULE BODY CONTROL MODULE JX201 PASSENGER SEAT ADJUSTER SWITCH DRIVER SEAT ADJUSTER SWITCH SEAT MEMORY CONTROL MODULE 6 X1 X2 X1 X2 21 26 34 92 X2 A 33 36 3 3 2 1 37 38 97 X200 95 35 1 1 X301 X307 4 X2 X5 X1 E X4 5 E X200 2 1 3 6 4 5 10 9 8 7 12 11 3 X2 1 3 X1 1 X1 15 X201 39 X200 1 1 X201 24 K M 12 X4 15 4 23 29 30 24 19 22 27 28 18 39 31 J M X201 22 A C C A X201 22 17 B M 11 14 13 X1 44 X1 33 16 X200 BLK RED/BLK RED/WHT RED RED/WHT RED/BLK RED/WHT RED/BLK RED/WHT RED RED/BLK RED/WHT RED/BLK RED/WHT RED/WHT RED/WHT RED/WHT RED/WHT RED RED/WHT RED RED RED DK BLU/WHT BLK RED/WHT RED DK BLU/WHT BLK RED BLK TAN TAN TAN TAN TAN TAN TAN BLK BLK TAN GRY GRY BLK BLK BLK BLK DK GRN DK GRN DK GRN/WHT DK GRN DK GRN DK GRN/WHT DK GRN/WHT DK GRN BLK BLK PNK PNK RED RED/WHT RED RED/WHT RED/WHT RED/BLK RED/WHT (W/ ONSTAR) W/ MEMORY W/O MEMORY BATT FUSE TRUNK FUSE ACCESSORY RELAY PWR OUTLET 2 FUSE 7 PWR OUTLET 1 FUSE 6 ONSTAR/ UHP FUSE RDO FUSE CENTER CONTROL 1 ACCESSORY POWER RECEPTACLE CENTER CONTROL 2 ACCESSORY POWER RECEPTACLE ACCESSORY POWER RECEPTACLE 110V AC PASS/ SEAT CIRCUIT BREAKER DRVR/ SEAT CIRCUIT BREAKER FRT HVAC FUSE BCM 4 FUSE BCM 7 FUSE BCM 5 FUSE BCM 8 FUSE BCM 1 FUSE ACCESSORY DC/AC POWER INVERTER MODULE (LOWER LEFT SIDE OF DASH) (UNDER FRONT OF CENTER CONSOLE) (98 MM FROM BREAKOUT TO HEADLAMP SWITCH) (CENTER OF DASH) (UNDER FRONT OF CENTER CONSOLE) (CENTER OF DASH) (LOWER LEFT SIDE OF DASH) (UNDER FRONT OF CENTER CONSOLE) (CENTER OF DASH) J210 G201 G201 G201 5683 4640 5684 6807 1550 FROM DISPLAY FUSE (DIAGRAM 2 OF 5) GROUND DISTRIBUTION SYSTEM FROM BATTERY FUSE BLOCK (DIAGRAM 1 OF 5) FROM INSTRUMENT PANEL FUSE BLOCK (DIAGRAM 2 OF 5)
87 30 85 86 87 86 30 J J D C 5A 5A 30A 10A 10A 10A M 10A 85 7.5A 7.5A REAR BODY FUSE BLOCK STEERING COLUMN FUSE HOLDER STEERING WHEEL AIR BAG COIL PASSENGER CUSHION SEAT BLOWER MOTOR PASSENGER BACK SEAT BLOWER MOTOR DRIVER BACK SEAT BLOWER ASSEMBLY REAR WINDOW SUNSHADE CONTROL MODULE BODY CONTROL MODULE DRIVER CUSHION SEAT BLOWER MOTOR STEERING WHEEL HEATING CONTROL MODULE REAR BODY FUSE BLOCK REAR DIFFERENTIAL CLUTCH CONTROL MODULE LEFT SIDE OBJECT SENSOR RIGHT SIDE OBJECT SENSOR PARKING ASSIST CONTROL MODULE KEYLESS ENTRY CONTROL MODULE SUSPENSION CONTROL MODULE PASSENGER SEATBACK VIDEO DISPLAY DRIVER SEATBACK VIDEO DISPLAY X4 2 1 F X406 7 7 X1 30 2 20 26 18 6 X2 5 1 1 X1 1 27 X307 1 X408 M X301 27 X1 M 1 22 X5 14 6 X2 36 X1 X1 32 X307 4 X301 4 C C C C 5 1 X5 6 X4 1 X200 46 25 RED/WHT RED/WHT RED/WHT RED/WHT RED/YEL RED/WHT RED/WHT RED/WHT RED/WHT RED/WHT RED/WHT RED/WHT RED/WHT RED/BLK RED/WHT RED/WHT RED/WHT RED/WHT RED/YEL RED/WHT RED/WHT RED/WHT YEL LT GRN LT GRN BLK PNK RED PNK PNK PNK PNK PNK PNK PNK RED RED PNK PNK BLK RED/WHT BRN BRN BRN BRN BRN W/O CLIMATE CONTROL W/ CLIMATE CONTROL W/ REAR SEAT ENTERTAINMENT W/ AWD W/ CONTINUOUSLY VARIABLE REAL TIME DAMPING (IF EQUIPPED) IGNITION RUN RELAY IGNITION MAIN RELAY STRG WHL HTR FUSE OSM FUSE HTD WHL FUSE SADS FUSE RSE FUSE AWD FUSE PEPS MTR FUSE PEPS BATT FUSE UPA/ SPZ FUSE (ON LEFT REAR WHEELHOUSE) (50 MM FROM BREAKOUT TO DRIVER SEAT BELT RETRACTOR PRETENSIONER) (BELOW LEFT REAR FUSE BLOCK) (ON LEFT REAR WHEELHOUSE) (475 MM FROM BREAKOUT TO SDM CONNECTOR) (151 MM FROM BREAKOUT TO X406) J404 J381 J389 J388 J323 J435 G401 TO SADS FUSE (DIAGRAM 4 OF 5) TO SPLICE J216 (DIAGRAM 5 OF 5) FROM BATTERY FUSE BLOCK (DIAGRAM 1 OF 5) FROM BATTERY FUSE BLOCK (DIAGRAM 1 OF 5) FROM IGNITION MAIN RELAY (DIAGRAM 4 OF 5)
7.5A H ACC VOLT RUN/CRANK 1 VOLT LOW REFERENCE IGNITION MODE SW CTRL M G K START RUN OFF OFF RUN ACC START ACC START ACC OFF RUN START RUN START ACC OFF RUN OFF ACC KEYLESS ENTRY CONTROL MODULE BODY CONTROL MODULE UNDERHOOD FUSE BLOCK CONTROL SOLENOID VALVE ASSEMBLY ENGINE CONTROL MODULE GARAGE DOOR OPENER DRIVER WINDOW SWITCH OUTSIDE REARVIEW MIRROR SWITCH PASSENGER WINDOW SWITCH 19 X500 B9 X397 23 X600 23 X500 X1 4 1 4 4 X2 28 13 15 8 X1 8 20 5 2 17 X2 4 6 3 7 13 X200 28 20 21 X2 4 3 12 X1 11 X108 14 X1 X2 41 70 15 X4 22 6 5 22 15 X3 1 3 4 6 2 RED/WHT RED/WHT RED/WHT RED/WHT RED/WHT RED/WHT RED/WHT RED/WHT YEL RED/WHT YEL BLK LT GRN DK BLU DK BLU LT GRN LT GRN/WHT BLK LT GRN/WHT LT GRN GRY/BLK LT GRN GRY/BLK LT GRN PNK BRN PNK BRN GRY/BLK BRN PNK BRN PNK PNK BRN DK BLU DK BLU DK BLU YEL YEL YEL YEL YEL YEL DK BLU PNK PNK BRN WHT/BLK PNK BRN PNK WHT/BLK RED/WHT W/O KEYLESS ENGINE START W/ KEYLESS ENGINE START W/ SUNSHADE W/O SUNSHADE 3.0L & 3.6L 2.4L & 3.0L 3.6L 2.4L W/ MEMORY (IF EQUIPPED) (W/ MEMORY) IGNITION SWITCH KEY IN IGNITION SWITCH ACC IND START IND OFF IND IGNITION MODE SWITCH OSRVM/UGDO/ WNDW SW FUSE (BOTTOM OF "A" PILLAR) (67 MM FROM BREAKOUT INTO TRANSMISSION CONNECTOR) (65 MM FROM BREAKOUT TO JX202 SPLICE PACK) (LEFT SIDE OF BATTERY) J213 J216 J117 J332 G203 FROM INSTRUMENT PANEL FUSE BLOCK (DIAGRAM 2 OF 5) INTERIOR LIGHTS SYSTEM FROM COOL FAN K2 FUSE (DIAGRAM 2 OF 5) FROM UNDERHOOD FUSE BLOCK (DIAGRAM 2 OF 5) FROM REAR BODY FUSE BLOCK (DIAGRAM 4 OF 5)