Buick·Lucerne·2011 Buick Lucerne·Wiring
Wiring diagram

2011 Buick Lucerne — power distribution

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Power distribution

A 87 J 30 87 86 85 30 30 30 30 30 30 87 85 86 10A 10A 10A 10A 60A 60A 50A 25A B B 30A 30A GENERATOR BATTERY STARTER MOTOR UNDERHOOD FUSE BLOCK LO/BEAM PCB RELAY HORN PCB RELAY HIGH/BEAM PCB RELAY TRN/SIG PCB RELAY TRN/SIG PCB RELAY FAN 2 RELAY 31 STRTR RELAY 30 FAN 1 RELAY 33 A/C CLUTCH RELAY 34 AIR PUMP RELAY 37 AIR/SOL RELAY 35 BODY CONTROL MODULE (BCM) ENGINE CONTROL MODULE (ECM) UNDERHOOD FUSE BLOCK WSH PCB RELAY FOG LAMP PCB RELAY WPR PCB RELAY WPR HI PCB RELAY INFLATABLE RESTRAINT I/P MODULE INDICATOR INFLATABLE RESTRAINT SENSING & DIAGNOSTIC MODULE (SDM) TRANSMISSION CONTROL MODULE (TCM) AUTOMATIC TRANSMISSION WINDSHIELD WASHER SOLVENT HEATER AUTOMATIC TRANSMISSION ELECTRONIC BRAKE CONTROL MODULE (EBCM) ENGINE CONTROL MODULE (ECM) INSTRUMENT PANEL CLUSTER (IPC) RECIRCULATION ACTUATOR HVAC CONTROL MODULE X1 X1 40 X3 H1 13 X4 21 X175 X175 A3 X2 7 20 X1 18 32 X2 B2 4 B3 A5 X1 19 B2 U E 31 E D2 2 31 X1 1 X2 E3 E1 X3 F1 BRN RED PNK/RED RED/ GRY RED BLK RED/ PNK PNK PNK PNK PNK PNK PNK PNK PNK PNK PNK PNK PNK PNK WHT BLK/ WHT BLK/ PNK PNK PNK PNK PNK PNK PNK BLK GRY RED/ RED RED/ RED RED RED/BLK BLK RED RED RED/ G112 FUSIBLE LINK FAN 2 FUSE 26 FAN 1 FUSE 27 PWR/TRAIN RELAY 29 WSW HTR FUSE 28 ABS FUSE 23 WPR FUSE 13 ABS MTR FUSE 25 IGN RELAY 36 ECM/ PCM FUSE 9 AIR BAG FUSE 11 HVAC/IPC IGN 1 FUSE 10 TRANS IGN 1 FUSE 8 (ON RIGHT FRONT OF ENGINE COMPT, FORWARD OF STRUT TOWER) (ON RIGHT FRONT OF ENGINE COMPT, FORWARD OF STRUT TOWER) (IN ENGINE HARNESS, APPROXIMATELY 41 CM (16 IN) FROM UNDERHOOD FUSE BLOCK CONNECTOR C3) (LOWER LEFT REAR OF ENGINE) (IN IP HARNESS, BETWEEN X201 & X202) 4.6L 3.9L 3.9L 4.6L AUTOMATIC A/C MANUAL A/C W/ HEATED NOZZLE J105 J111 J229 TO REAR FUSE BLOCK (DIAGRAM 2 OF 5) TO WPR FUSE 13 (DIAGRAM 1 OF 5) TO ECM/ CRNK FUSE 1 (DIAGRAM 5 OF 5) FROM TRN/SIG PCB RELAY (DIAGRAM 1 OF 5)
10A 10A C 30A 15A 10A A 10A 10A D 15A 15A 30A C 10A 15A REAR FUSE BLOCK DATA LINK CONNECTOR (DLC) DIGITAL RADIO RECEIVER AUDIO AMPLIFIER EVAPORATIVE EMISSION (EVAP) CANISTER VENT SOLENOID VALVE HVAC CONTROL MODULE INFLATABLE RESTRAINT PASSENGER PRESENCE SYSTEM (PPS) MODULE INFLATABLE RESTRAINT SENSING & DIAGNOSTIC MODULE (SDM) VEHICLE COMMU- NICATION INTERFACE MODULE (VCIM) RADIO THEFT DETERRENT MODULE (TDM) INSTRUMENT PANEL CLUSTER (IPC) BODY CONTROL MODULE (BCM) REAR FUSE BLOCK SEAT CLIMATE CONTROL MODULE ENGINE CONTROL MODULE (ECM) DRIVER DOOR CONTROL MODULE PASSENGER DOOR CONTROL MODULE TRANSMISSION CONTROL MODULE (TCM) GARAGE DOOR OPENER TRANSMITTER VEHICLE DIRECTION ALERT ALARM WARNING MODULE REMOTE CONTROL DOOR LOCK RECEIVER (RCDLR) A X4 10 C8 F10 2 X3 16 1 X1 X1 8 10 X1 9 16 1 31 1 15 X1 X1 4 X1 4 X1 E X1 20 X1 32 1 1 A1 X2 B1 X3 X3 C2 X2 F5 A2 E11 D4 X2 A12 B12 X1 D4 X1 RED/ WHT RED/ WHT TAN/ ORG RED/ WHT TAN/ ORG RED TAN/ PPL PNK/ GRY YEL/ BRN PNK/ RED PNK/ RED PNK/ DK GRN RED/ RED/ DK GRN DK GRN RED/ DK GRN RED/ DK GRN/ TAN TAN DK GRN/ WHT RED/ RED DK BLU TAN/ TAN/ DK BLU PNK ORG/ PNK ORG/ ORG/ PNK ORG/ PNK ORG/ PNK BRN PNK/ RED PNK/ RED PNK/ PPL PNK/ TAN/ RED YEL/ GRY WHT WHT RED/ RED/ RED/ WHT RED/ DK GRN DK GRN DK GRN RED/ RED/ RED/ DK GRN ORG PASSKEY FUSE 13 SDM FUSE 30 SOL CAN FUSE 34 AMP-RDO FUSE 38 RADIO FUSE 44 MDL-ONSTAR FUSE 42 BCM FUSE 40 DDM FUSE 22 PDM FUSE 29 MDL-FRT FUSE 9 MDLS-BODY FUSE 43 ECM/TCM FUSE 5 (BELOW LEFT SIDE OF REAR SEAT) (IN I/P HARNESS, APPROXIMATELY 6 CM (2 IN) FROM BRANCH FOR HVAC MODULE) (IN BODY HARNESS, APPROXIMATELY 10 CM (4 IN) FROM AUDIO AMPLIFIER CONNECTOR C1) (BELOW LEFT SIDE OF REAR SEAT) (IN BODY HARNESS, APPROXIMATELY 14 CM (6 IN) FROM BREAKOUT FOR YAW & LATERAL ACCELERATION SENSOR) (IN ENGINE HARNESS, APPROXIMATELY 80 CM (31 IN) FROM UNDERHOOD FUSE BLOCK CONNECTOR C3) (IN HEADLINER HARNESS, APPROXIMATELY 11 CM (5 IN) FROM BREAKOUT TO REAR PARK ASSIST INDICATOR) IF EQUIPPED W/ ONSTAR IF EQUIPPED W/O LANE DEPARTURE WARNING SENSOR INDICATOR W/ LANE DEPARTURE WARNING SENSOR INDICATOR (4.6L) J200 J366 J301 (4.6L) J100 J392 FROM BATTERY (DIAGRAM 1 OF 5) TO MDLS-BODY FUSE 43 (DIAGRAM 2 OF 5) FROM AMP-RDO FUSE 38 (DIAGRAM 2 OF 5) TO IGN-SW FUSE 21 (DIAGRAM 3 OF 5)
1 2 1 2 1 2 30 85 30 40A 25A E 10A 25A 10A 25A F 15A 15A 10A 10A 10A 25A 5A D H 20A 20A E 10A 40A REAR FUSE BLOCK TRK REL RELAY 67 LEVEL COMP RELAY 53 ELECTRONIC SUSPENSION CONTROL (ESC) MODULE MEMORY SEAT MODULE AUTOMATIC LEVEL CONTROL (ALC) COMPRESSOR AUTOMATIC LEVEL CONTROL MODULE DRIVER SEAT ADJUSTER SWITCH PASSENGER SEAT LUMBAR ADJUSTER SWITCH PASSENGER SEAT ADJUSTER SWITCH PASSENGER SEAT ADJUSTER SWITCH REAR FUSE BLOCK REAR OBJECT SENSOR CONTROL MODULE BLOWER MOTOR CONTROL MODULE BODY CONTROL MODULE (BCM) RIGHT SIDE OBJECT SENSOR LEFT SIDE OBJECT SENSOR X3 X3 X1 C10 D8 X2 2 E8 X1 D5 X3 X2 1 C E 6 5 1 3 4 2 X2 2 X3 X4 D D E G A A A 1 X1 C C C C A 6 2 2 F4 X2 E12 A11 A4 B1 X2 E12 X3 D9 X2 D9 C4 E12 X4 B E1 X2 X2 F9 RED/ WHT RED/ WHT RED/ WHT RED/ WHT RED/ WHT RED/ WHT WHT RED/ RED/ WHT YEL TAN/ ORG PNK/ TAN/ RED/ WHT PPL TAN/ PPL ORG/ BRN PNK RED/ RED/ RED/ RED/ YEL GRN WHT DK GRN/ PNK/ DK BLU PPL RED/ PNK TAN/ DK BLU PNK/ YEL DK BLU TAN/ PNK RED/ TAN/ DK BLU DK BLU TAN/ DK BLU TAN/ WHT RED/ WHT RED/ DK GRN PNK/ WHT RED/ WHT RED/ BLK BLK BLK BLK BLK BLK RED/ WHT RED/ WHT RED/ WHT G304 G300 PWR SEAT CIRCUIT BREAKER 55 LEVEL COMP FUSE 47 MDL-RTD FUSE 15 RF SEAT CIRCUIT BREAKER 54 COMP RELAY FUSE 24 MDL-MEM FUSE 6 PWR T/T CIRCUIT BREAKER 57 IGN-SW FUSE 21 MTR FUSE 48 MDL-RPA FUSE 12 BCM (RTTN) FUSE 36 BCM (INADV) FUSE 32 BCM (CHMSL) FUSE 39 BCM (DIM) FUSE 18 BCM (LTTN) FUSE 25 APOS FUSE 31 LTR-CIG FUSE 26 BLOWER FUSE 49 FRONT ACCESSORY POWER OUTLET CIGAR LIGHTER CIGAR LIGHTER CENTER CONSOLE ACCESSORY POWER OUTLET (BELOW LEFT SIDE OF REAR SEAT) (IN BODY HARNESS, APPROXIMATELY 27 CM (11 IN) FROM BRANCH FOR REAR FUSE BLOCK) (IN RIGHT FRONT SEAT HARNESS, APPROXIMATELY 114 CM (45 IN) FROM PASSENGER SEAT ADJUSTER SWITCH CONNECTOR) (BELOW LEFT SIDE OF REAR SEAT) (IN CENTER CONSOLE HARNESS, APPROXIMATELY 10 CM (4 IN) FROM BREAKOUT FOR A/T SHIFT LOCK CONTROL SOLENOID) (IN REAR FASCIA HARNESS, APPROXIMATELY 8 CM (3 IN) FROM BREAKOUT TO RIGHT REAR CORNER OBJECT ALARM SENSOR) (UNDER RIGHT FRONT PASSENGER'S SEAT) (UNDER DRIVER'S SEAT) W/O MULTI- DIRECTIONAL W/ MULTI- DIRECTIONAL W/ MEMORY SEAT W/O MEMORY SEAT W/ MAGNETO RHEOLOGICAL W/ POWER TILT TELESCOPING STEERING COLUMN (IF EQUIPPED) W/ MAGNETO RHEOLOGICAL W/O MAGNETO RHEOLOGICAL (AUTOMATIC A/C) (MANUAL A/C) W/ REAR PARKING ASSIST W/ CUSTOM SEAT W/ INDIVIDUAL SEAT W/ OBSTACLE DETECTION SENSOR INDICATOR (W/ CUSTOM SEAT) W/ INDIVIDUAL SEAT J388 J348 J315 J405 J221 J307 FROM PDM FUSE 29 (DIAGRAM 2 OF 5) TO MDL-RPA FUSE 12 (DIAGRAM 3 OF 5) TO IGNITION SWITCH (DIAGRAM 5 OF 5) FROM MDL-RTD FUSE 15 (DIAGRAM 3 OF 5) TO RAP-HC RELAY 70 (DIAGRAM 4 OF 5)
86 87 85 30 30 87 86 85 30 30 30 7.5A G 10A 25A 10A F 10A 10A 25A 10A 40A 20A G 40A REAR FUSE BLOCK SUNROOF CONTROL MODULE INSIDE REARVIEW MIRROR (ISRVM) WINDSHIELD OUTSIDE MOISTURE SENSOR BODY CONTROL MODULE (BCM) FRONT PASSENGER DOOR MODULE (FPDM) RIGHT REAR WINDOW SWITCH LEFT REAR WINDOW SWITCH PARK SWITCH WINDSHIELD WASHER SOLVENT HEATER DRIVER DOOR MODULE (DDM) AUTOMATIC TRANSMISSION SHIFT LEVER INFLATABLE RESTRAINT STEERING WHEEL MODULE COIL HEATED STEERING WHEEL CONTROL MODULE AUTOMATIC TRANSMISSION SHIFT LEVER SEAT CLIMATE CONTROL MODULE REAR FUSE BLOCK DRL RELAY 65 PARK LP-LT RELAY 58 UNLOCK RELAY 62 LOCK RELAY 63 FUEL PUMP RELAY 57 REAR DEFOG RELAY 52 LEVEL COMP RELAY 53 A C X277 X276 C 2 X1 2 X1 G G 2 X4 X3 3 4 11 X5 13 6 X2 A A X1 1 13 3 X2 A X2 1 E2 X2 X2 F3 X1 A3 A11 E11 B7 F6 X2 A8 X1 B11 E6 X3 X2 C3 NCA YEL NCA NCA BRN BRN BRN TAN YEL RED/ RED/ WHT WHT RED/ RED/ WHT WHT RED/ WHT TAN/ BRN LT GRN/ BLK/ BRN BLK TAN PNK BRN YEL GRY PNK/ BRN BRN YEL/ TAN/ BRN GRY YEL YEL/ BRN YEL/ BRN BRN BRN BRN BRN BRN BRN G301 BCM FUSE 19 BCM (CTSY) FUSE 35 PWR WDO CIRCUIT BREAKER 56 RUN RELAY 64 RAP-HC RELAY 70 RUN 1 FUSE 20 RUN 2 FUSE 10 RAP1 FUSE 28 RAP2 FUSE 33 SUNROOF FUSE 17 LEVEL COMP FUSE 47 REAR DEFOG FUSE 46 UNLOCK/LOCK FUSE 14 (BELOW LEFT SIDE OF REAR SEAT) (IN BODY HARNESS, APPROXIMATELY 15 CM (6 IN) FROM BRANCH FOR BATTERY CURRENT SENSOR) (IN CENTER CONSOLE HARNESS, APPROXIMATELY 8 CM (3 IN) FROM BREAKOUT FOR A/T SHIFT LOCK CONTROL SOLENOID) (UNDER LEFT REAR SEAT) (IN BODY HARNESS, APPROXIMATELY 19 CM (8 IN) FROM BREAKOUT FOR G301) (BELOW LEFT SIDE OF REAR SEAT) W/ CUSTOM SEAT W/ HEATED STEERING WHEEL LEATHER WRAPPED W/ HEATED NOZZLE (IF EQUIPPED) (IF EQUIPPED) W/ INDIVIDUAL SEAT W/ CUSTOM SEAT W/ FRONT HEATED SEAT COOLING W/O FRONT HEATED SEAT COOLING J337 J381 J302 FROM BCM (CHMSL) FUSE 39 (DIAGRAM 3 OF 5) TO REAR DEFOG FUSE 46 (DIAGRAM 4 OF 5) FROM PWR WDO CIRCUIT BREAKER 56 (DIAGRAM 4 OF 5)
K 15A 85 H 85 85 85 85 OFF START RUN OFF ACC START RUN OFF ACC START ACC OFF OFF RUN ACC RUN START RUN ACC 15A J 15A 85 K 15A 15A START UNDERHOOD FUSE BLOCK ENGINE CONTROL MODULE (ECM) HEATED OXYGEN SENSOR (HO2S) 1 HEATED OXYGEN SENSOR (HO2S) BANK 2 SENSOR 1 HEATED OXYGEN SENSOR (HO2S) BANK 1 SENSOR 1 FUEL INJECTOR 3 FUEL INJECTOR 7 FUEL INJECTOR 1 FUEL INJECTOR 5 FUEL INJECTOR 1 FUEL INJECTOR 3 FUEL INJECTOR 2 EVAPORATIVE EMISSION (EVAP) CANISTER PURGE SOLENOID VALVE IGNITION COIL 7 IGNITION COIL 5 IGNITION COIL 1 IGNITION COIL 3 FUEL INJECTOR 4 FUEL INJECTOR 6 FUEL INJECTOR 5 UNDERHOOD FUSE BLOCK AIR PUMP RELAY 37 FAN 3 RELAY 32 FAN 2 RELAY 31 A/C CLTCH RELAY 34 AIR SOL RELAY 35 FAN 1 RELAY 33 FUEL INJECTOR 8 FUEL INJECTOR 6 FUEL INJECTOR 4 FUEL INJECTOR 2 HEATED OXYGEN SENSOR (HO2S) 2 IGNITION CONTROL MODULE (ICM) MASS AIR FLOW (MAF)/ INTAKE AUR TEMPERATURE (IAT) SENSOR IGNITION COIL 4 IGNITION COIL 2 THEFT DETERRENT MODULE (TDM) IGNITION COIL 6 IGNITION COIL 8 BODY CONTROL MODULE (BCM) X3 G4 G3 D A D D A A 2 2 3 1 21 X1 14 5 2 J4 J5 X2 X1 13 73 A A A A A A A A A A A A X3 J3 G5 6 A D 4 B P A A A A A A A (OR PNK) (OR PNK) BLK PNK/ PNK/ BLK BLK PNK/ PNK/ BLK BLK PNK/ PNK/ BLK BLK PNK/ BLK PNK/ BLK PNK (OR PNK/ BLK) PNK/ BLK) PNK YEL PNK/ BRN BRN BRN PNK WHT PNK/ GRY (OR PNK) PNK/ GRY PNK/ GRY (OR PNK) GRY PNK/ PNK (OR PNK/BLK) PNK (OR PNK/ PNK (OR PNK/ BLK) BLK) GRY PNK/ BLK) (OR PNK/ BLK) PNK PNK PNK (OR PNK/ BLK) GRY GRY PNK/ PNK/ BLK PNK/ PNK PNK PNK PNK GRY PNK/ BLK PNK/ PNK/ BLK PNK/ BLK BLK PNK/ PNK/ BLK (OR PNK/ BLK PNK/ PNK/ BLK WHT/ BLK PNK/ BLK PNK/ BLK PNK/ BLK BLK PNK/ PNK/ BLK PNK PNK PNK PNK PNK PNK/ BLK (OR PNK/ ECM/ CRNK FUSE 1 EMIS DEV FUSE 7 FUEL INJ ODD FUSE 2 FUEL INJ EVEN FUSE 3 OXY SNSR FUSE 6 IGNITION SWITCH KEY-IN SWITCH (ON RIGHT FRONT OF ENGINE COMPT, FORWARD OF STRUT TOWER) (IN ENGINE HARNESS, APPROXIMATELY 7 CM (4 IN) FROM BRANCH FOR X139 TOWARD BREAKOUT FOR X138) (IN ENGINE HARNESS, APPROXIMATELY 3 CM (1 IN) FROM BRANCH FOR X139) (IN ENGINE HARNESS, APPROXIMATELY 3 CM (1 IN) FROM BRANCH FOR X139) (IN ODD BANK IGNITION COIL HARNESS,BETWEEN X140 & IGNITION COIL/MODULE 7) (ON RIGHT FRONT OF ENGINE COMPT, FORWARD OF STRUT TOWER) (IN ENGINE HARNESS, APPROXIMATELY 6 CM (2 IN) FROM BRANCH FOR ENGINE COOLANT TEMPERATURE (ECT) SENSOR) (IN STEERING COLUMN HARNESS, BETWEEN X203 & IGNITION SWITCH CONNECTOR) (IN EVEN BANK IGNITION COIL HARNESS, BETWEEN X139 & IGNITION COIL/MODULE 8) (4.6L) (3.9L) 3.9L 4.6L 3.9L 4.6L 3.9L 3.9L 4.6L 4.6L 3.9L J102 J109 J109 J142 J110 J201 J131 FROM PWR/TRAIN RELAY 29 (DIAGRAM 1 OF 5) TO FUEL INJ EVEN FUSE 3 (DIAGRAM 5 OF 5) FROM EMIS DEV FUSE 7 (DIAGRAM 5 OF 5) FROM IGN-SW FUSE 21 (DIAGRAM 3 OF 5)