Buick·Lacrosse·2011 Buick LaCrosse·Wiring
Wiring diagram

2011 Buick LaCrosse — power distribution

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Power distribution

80A 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 POWER STEERING CONTROL MODULE LEFT HEADLAMP HORIZONTAL MOTOR RIGHT HEADLAMP HORIZONTAL MOTOR SUNROOF SUNSHADE MOTOR MODULE ENGINE CONTROL MODULE POWER STEERING CONTROL MODULE DRIVER SEAT LUMBAR SUPPORT SWITCH CONTROL SOLENOID VALVE ASSEMBLY SUNROOF CONTROL MODULE ELECTRONIC BRAKE CONTROL MODULE SEAT MEMORY CONTROL MODULE SEAT HEATING CONTROL MODULE LEFT HEADLAMP RIGHT HEADLAMP UNDERHOOD FUSE BLOCK PARKING BRAKE CONTROL MODULE RIGHT REAR WINDOW SWITCH LEFT REAR WINDOW SWITCH BODY CONTROL MODULE FUEL PUMP CONTROL MODULE EVAPORATIVE EMISSION VENT SOLENOID VALVE ELECTRONIC BRAKE CONTROL MODULE AUDIO AMPLIFIER PASSENGER WINDOW MOTOR DRIVER WINDOW MOTOR BRAKE BOOSTER PUMP MOTOR RELAY X2 2 A X1 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 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/YEL RED/ LT GRN RED/ LT GRN RED/ RED/ RED/ RED/ DK BLU RED/ DK BLU RED/ RED RED/YEL RED RED/YEL RED/VIO RED/GRN RED/GRN LT GRN RED/YEL RED/YEL RED/YEL RED/WHT RED/YEL RED/WHT RED/WHT RED/WHT RED/WHT RED/WHT DK BLU RED/WHT RED/WHT DK BLU RED/GRY RED/VIO RED/GRY RED/VIO RED/BLU LT GRN RED/VIO RED/WHT RED/WHT RED/YEL RED/BRN RED/DK GRN RED/DK BLU RED/YEL RED/YEL RED/GRY RED/GRY RED/WHT RED/WHT RED/BRN RED/DK GRN RED/DK BLU RED/GRY RED/GRY RED/YEL RED RED RED RED/WHT RED/YEL RED/WHT RED/WHT RED/BLU RED/BLK RED RED W/ MEMORY W/O MEMORY (IF EQUIPPED) (IF EQUIPPED) (2.4L & 3.0L) (3.6L) (3.0L & 3.6L) (2.4L) (IF EQUIPPED) (IF EQUIPPED) (IF EQUIPPED) (IF EQUIPPED) (IF EQUIPPED) (PREMIUM AUDIO) BATTERY FUSE BLOCK F4UB FUSE F1UB FUSE F3UB FUSE F2UB FUSE F5UB FUSE F6UB FUSE F12UA FUSE F23UA FUSE F1UA FUSE 1 F26UA FUSE F64UA FUSE F2UA FUSE 2 F36UA FUSE F29UA FUSE F22UA FUSE F6UB FUSE F33UA FUSE F41UA FUSE F67UA FUSE F32UA FUSE F24UA FUSE F69UA FUSE F35UA FUSE F34UA FUSE F27UA FUSE F21UA FUSE F62UA FUSE (TOP OF BATTERY) (127 MM FROM BREAKOUT TO X398) (LEFT SIDE OF BATTERY) J300 TO REAR BODY FUSE BLOCK (DIAGRAM 4 OF 5) TO INSTRUMENT PANEL FUSE BLOCK (DIAGRAM 3 OF 5) TO REAR BODY FUSE BLOCK (DIAGRAM 4 OF 5) TO INSTRUMENT PANEL FUSE BLOCK (DIAGRAM 2 OF 5) TO IGNITION MAIN RELAY (DIAGRAM 2 OF 5)
A 87 15A 87 50A 30 5A 30 86 85 H G K L I 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 CONTROLS IGNITION RELAY UNDERHOOD FUSE BLOCK FUEL PUMP CONTROL MODULE INFLATABLE RESTRAINT SENSING & DIAGNOSTIC MODULE HVAC CONTROL MODULE AIR QUALITY SENSOR INSTRUMENT CLUSTER ENGINE CONTROL MODULE CONTROL SOLENOID VALVE ASSEMBLY MASS AIR FLOW SENSOR/INTAKE AIR TEMPERATURE SENSOR INSIDE REARVIEW MIRROR REARVIEW CAMERA SECONDARY AIR INJECTION SOLENOID VALVE RELAY HEADLAMP LOW BEAM RELAY WINDSHIELD WIPER RELAY WINDSHIELD WIPER SPEED CONTROL RELAY WINDSHIELD WASHER PUMP RELAY COOLING FAN LOW SPEED RELAY HORN RELAY SECONDARY AIR INJECTION PUMP RELAY HEADLAMP HIGH BEAM RELAY REAR DEFOGGER RELAY FRONT FOG LAMP RELAY COOLING FAN RIGHT HIGH SPEED RELAY UNDERHOOD FUSE BLOCK INSTRUMENT PANEL FUSE BLOCK DATA LINK CONNECTOR HVAC CONTROL MODULE INFLATABLE RESTRAINT SENSING & DIAGNOSTIC MODULE BODY CONTROL MODULE INSTRUMENT CLUSTER MULTIMEDIA PLAYER INTERFACE MODULE RADIO/ HVAC CONTROLS HEAD UP DISPLAY INFO DISPLAY MODULE PASSENGER PRESENCE DETECTION MODULE 20 9 X411 4 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 48 5 43 X1 37 3 6 2 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 RED/WHT RED/WHT VIO/ BLK VIO/ BLK VIO/ BLK VIO/ VIO/ VIO/ VIO/ RED/ DK BLU RED/ DK BLU RED/ DK BLU RED/ DK BLU RED/ GRY GRY LT GRN/VIO RED/VIO DK BLU RED/VIO RED/VIO RED BRN YEL/ WHT RED/ RED/ WHT RED/BLK RED/WHT RED/BLK RED/BRN RED/DK GRN RED/DK BLU RED/WHT RED/WHT RED/WHT BLK BLK RED BLK BLK VIO/BLK VIO/BLK BLK VIO/BLK VIO/WHT VIO/GRY VIO/GRY VIO/LT GRN VIO/GRY VIO/GRY VIO/BLK VIO/BLK VIO/WHT VIO/BLK VIO/WHT VIO/WHT VIO/WHT BLK LT GRN/VIO W/ SIDE OBSTACLE DETECTION & SENSOR INDICATOR W/ REAR VIEW CAMERA W/O REAR VIEW CAMERA 3.6L (NOT USED) (3.0L & 3.6L) (2.4L) 2.4L & 3.0L 3.6L (IF EQUIPPED) (W/ HIGH INTENSITY DISCHARGE) (IF EQUIPPED) W/ AUDIO INTERFACE (IF EQUIPPED) (IF EQUIPPED) IGNITION MAIN RELAY F54UA FUSE F18UA FUSE F16UA FUSE F63UA FUSE F17UA FUSE F5UA FUSE F52UA FUSE F13UA FUSE F42UA FUSE F59UA FUSE F45UA FUSE 14UA FUSE F6UA FUSE F24DA FUSE F14DA FUSE F26DA FUSE F22DA FUSE F20DA FUSE F15DA FUSE F23DA FUSE F19DA FUSE F21DA FUSE F17DA 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 F62U FUSE (DIAGRAM 1 OF 5) TO BODY CONTROL MODULE (DIAGRAM 5 OF 5) TO F55UA FUSE (DIAGRAM 5 OF 5) FROM ENGINE CONTROL MODULE RELAY (DIAGRAM 2 OF 5) FROM BATTERY FUSE BLOCK (DIAGRAM 1 OF 5) TO F18DA 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 GND GND 120 VAC INVERTER CTRL 20A 20A 15A 7.5A 10A I 25A REAR COMPARTMENT LID RELEASE RELAY INSTRUMENT PANEL FUSE BLOCK JX201 RADIO TELEMATICS COMMUNICATIONS INTERFACE CONTROL MODULE JX201 TRANSMISSION SHIFT LEVER TRANSMISSION SHIFT LEVER POSITION INDICATOR BODY CONTROL MODULE INSTRUMENT PANEL FUSE BLOCK JX201 BODY CONTROL MODULE BLOWER MOTOR CONTROL MODULE SEAT MEMORY CONTROL MODULE DRIVER SEAT ADJUSTER SWITCH PASSENGER SEAT ADJUSTER SWITCH X201 24 K M B M 6 X1 X2 X1 X2 21 26 34 92 48 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 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 11 14 13 X1 44 X1 33 16 X200 RED BLK BLK BLK GRY/ TAN/VIO RED/BLK RED/WHT RED RED/DK GRN RED/BLK RED/WHT RED/VIO RED/LT GRN RED RED/BLK RED/WHT RED/VIO RED/BLK RED/YEL RED/VIO RED/BRN RED/YEL RED/VIO RED RED RED DK BLU/WHT BLK RED/VIO RED DK BLU/WHT BLK RED BLK GRY/VIO TAN/VIO TAN GRY/VIO VIO GRY/VIO GRY/VIO GRY BRN/DK BLU BRN/DK BLU BLK BLK BLK BLK VIO VIO DK GRN/WHT VIO VIO DK GRN/WHT DK GRN/WHT VIO BLK GRY/GRN GRY/GRN RED RED/VIO RED RED/VIO RED/DK BLU RED/BLK RED/DK BLU (W/ ONSTAR) W/O MEMORY W/ MEMORY F18DA FUSE F16DA FUSE ACCESSORY RELAY F6DA FUSE F7DA FUSE F5DA FUSE F4DA FUSE CENTER CONTROL 2 ACCESSORY POWER RECEPTACLE CENTER CONTROL 1 ACCESSORY POWER RECEPTACLE ACCESSORY POWER RECEPTACLE 110V AC F11DA FUSE F12DA CIRCUIT BREAKER F13DA CIRCUIT BREAKER F10DA FUSE F8DA FUSE F2DA FUSE F3DA FUSE F9DA 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 F19DA FUSE (DIAGRAM 2 OF 5) 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 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 BACK SEAT BLOWER MOTOR PASSENGER CUSHION SEAT BLOWER MOTOR BODY CONTROL MODULE DRIVER BACK SEAT BLOWER ASSEMBLY REAR WINDOW SUNSHADE CONTROL MODULE DRIVER CUSHION SEAT BLOWER MOTOR STEERING WHEEL HEATING CONTROL MODULE REAR BODY FUSE BLOCK REAR DIFFERENTIAL CLUTCH CONTROL MODULE KEYLESS ENTRY CONTROL MODULE SUSPENSION CONTROL MODULE DRIVER SEATBACK VIDEO DISPLAY PASSENGER SEATBACK VIDEO DISPLAY X395 F X4 2 1 X1 2 20 26 18 6 X2 5 1 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 VIO/ BRN VIO/ BRN VIO/ BRN VIO/ BRN VIO/ RED/ RED/ RED/ RED/ RED/ VIO/BLK VIO/BLK PNK RED/DK BLU RED/WHT RED/WHT RED/YEL RED/WHT RED/DK BLU RED/GRY RED/BRN RED/DK BLU RED/GRY RED/BRN RED/BLU RED/WHT RED/BRN RED/BLU LT GRN/VIO VIO VIO BLK BLK VIO/BLK VIO/BLK VIO/BLK RED/BLK VIO/BLK VIO/BLK BLK BLK BLK BLK BLK RED/WHT BRN W/ CLIMATE CONTROL W/O CLIMATE CONTROL W/ HEATED STEERING WHEEL W/ PASSENGER SEAT W/ DRIVER SEAT (IF EQUIPPED) W/ REAR SEAT ENTERTAINMENT W/ AWD W/ CONTINUOUSLY VARIABLE REAL TIME DAMPING (IF EQUIPPED) IGNITION RUN RELAY IGNITION MAIN RELAY F6R FUSE F20RA FUSE HTD WHL FUSE F32RA FUSE F33RA FUSE F31RA FUSE 35RA FUSE F18RA 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) J404 J381 J389 J388 J323 G401 TO F31RA (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)
5A 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 PASSENGER WINDOW SWITCH GARAGE DOOR OPENER LEFT SIDE OBJECT SENSOR OUTSIDE REARVIEW MIRROR SWITCH RIGHT SIDE OBJECT SENSOR REAR PARKING ASSIST CONTROL MODULE DRIVER WINDOW SWITCH X406 F X407 A7 X1 7 7 1 X2 84 19 X500 B9 X397 23 X600 23 X500 X1 4 1 4 4 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/ LT GRN RED/LT GRN RED/ LT GRN RED/ LT GRN RED/LT GRN (OR RED) RED/ LT GRN RED/VIO RED/VIO RED/VIO RED/VIO RED/VIO RED/VIO RED/VIO LT GRN/ VIO LT GRN/ VIO LT GRN/ VIO LT GRN/ RED/VIO RED/VIO YEL BLK BRN DK BLU DK BLU BRN DK BLU BLK DK BLU LT GRN/YEL BLK/BRN LT GRN/YEL BLK/BRN LT GRN VIO/BLK VIO/YEL PPL PPL BLK VIO/YEL VIO/BLK PPL PPL PPL (OR VIO/BLK) PPL (OR VIO/YEL) VIO/YEL VIO/YEL VIO/YEL VIO LT GRN/VIO LT GRN/VIO VIO/YEL PPL (OR VIO/BLK) WHT PPL (OR VIO/YEL) WHT PPL PPL WHT WHT RED/DK BLU W/O KEYLESS ENGINE START W/ KEYLESS ENGINE START W/ SUNSHADE W/O SUNSHADE 2.4L & 3.0L 3.0L & 3.6L 3.6L 2.4L W/ MEMORY (IF EQUIPPED) (IF EQUIPPED) (IF EQUIPPED) (IF EQUIPPED) IGNITION SWITCH KEY IN IGNITION SWITCH ACC IND START IND OFF IND IGNITION MODE SWITCH F70UA FUSE F55UA FUSE (BOTTOM OF "A" PILLAR) (67 MM FROM BREAKOUT INTO TRANSMISSION CONNECTOR) (65 MM FROM BREAKOUT TO JX202 SPLICE PACK) (LEFT SIDE OF BATTERY) (BUMPER HARNESS, 151MM FROM BREAKOUT TO X406) J213 J216 J117 J332 J435 G203 FROM INSTRUMENT PANEL FUSE BLOCK (DIAGRAM 2 OF 5) INTERIOR LIGHTS SYSTEM FROM F42UA FUSE (DIAGRAM 2 OF 5) FROM REAR BODY FUSE BLOCK (DIAGRAM 4 OF 5) FROM UNDERHOOD FUSE BLOCK (DIAGRAM 2 OF 5)