Buick LaCrosse I (2004-2009) crank relay 48 Wiring diagrams

1-2 SHIFT SOLENOID VALVE 12 VOLT REFERENCE IGNITION 3 VOLTAGE 2-3 SHIFT SOLENOID VALVE 3.6L 3.6L 3.8L 3.8L A/C CLUTCH FUSE 13 A/C COMP RELAY 38 ABS FUSE 23 AUTOMATIC A/C PNK PNK WIRE AUTOMATIC TRANSMISSION AUX PWR FUSE 10 AUXILIARY POWER OUTLET BLK WIRE BLK/WHT WIRE BODY CONTROL MODULE BODY CONTROL MODULE (BCM) BRN WIRE CIGAR LIGHTER CRANK RELAY 48 CRANK VOLTAGE CRUISE FUSE ENGINE CONTROL MODULE (ECM) ENGINE POWERTRAIN CONTROL CONTROL MODULE MODULE (ECM) (PCM) FROM IGN 1 RELAY (DIAGRAM 2 OF 4) FROM WASHER/RVC FUSE 6 (DIAGRAM 1 OF 4) HVAC CONTROL MODULE AUTOMATIC A/C MANUAL A/C I/P FUSE BLOCK (BEHIND RIGHT SIDE OF DASH) IGN 1 RELAY 37 IGNITION 1 VOLTAGE IGNITION SWITCH INFLATABLE ELECTRONIC RESTRAINT COMPASS SENSING, MODULE DIAGNOSTIC MODULE INFLATABLE RESTRAINT PASSENGER AIR BAG ON/OFF INDICATOR INFLATABLE RESTRAINT STEERING WHEEL MODULE COIL INSIDE AIR TEMPERATURE SENSOR KEY IN IGNITION SWITCH SIGNAL KEY-IN IGNITION SWITCH LOCK LT GRN WIRE NCA WIRE ORG/ WIRE P/TRAIN RELAY 40 PCM FUSE 15 PNK PNK PNK W/ PARK ASSIST WIRE PNK PNK WIRE PNK WIRE POWERTRAIN CONTROL MODULE (PCM) RED WIRE RUN WIRE SIR FUSE 9 DISPLAY FUSE 18 STEERING ANGLE SENSOR (W/ ABS) TCM FUSE 8 TO A/C CLUTCH FUSE (DIAGRAM 2 OF 4) TO ETC FUSE 17 (DIAGRAM 3 OF 4) TO FAN 2 FUSE (DIAGRAM 3 OF 4) TORQUE CONVERTER POWERTRAIN CLUTCH CONTROL (TCC) MODULE SOLENOID (PCM) VALVE TRANS SOL FUSE 21 TRANSMISSION CONTROL MODULE (TCM) TRANSMISSION CONTROL MODULE (TCM) (3.6L) UNDERHOOD FUSE BLOCK (MOUNTED TO RIGHT STRUT TOWER) WHT WIRE YEL WIRE

3.6L 3.8L 3.8L 3.6L 3.8L W/ CALIFORNIA PZEV EMISSION SYSTEM CRANK RELAY 48 EMISSION FUSE 12 ETC FUSE 17 EVAPORATIVE EMISSION (EVAP) CANISTER PURGE SOLENOID VALVE FAN 3 RELAY 43 FOG LP FAN 2 FAN 1 RELAY 36 RELAY 46 RELAY 42 FOG LPS FUSE 7 FAN 1 FUSE 29 FAN 2 FUSE 32 FROM P/TRAIN RELAY 40 (DIAGRAM 2 OF 4) FUEL PP FUSE 22 FUEL PP RELAY 41 HDM BEAM MODULE 35 HEATED OXYGEN SENSOR HI BEAM RELAY 34 HORN FUSE 11 HORN RELAY 39 MASS AIR FLOW (MAF)/ INTAKE AIR TEMPERATURE (IAT) SENSOR PNK PNK WIRE PNK WIRE RIGHT STRUT TOWER) SECONDARY AIR INJECTION (AIR) PUMP RELAY SECONDARY AIR INJECTION (AIR) SOLENOID RELAY STARTER FUSE 33 THROTTLE ENGINE ACTUATOR CONTROL CONTROL MODULE (TAC) (ECM) MODULE TO ELEK IGN FUSE 24 (DIAGRAM 4 OF 4) UNDERHOOD FUSE BLOCK (MOUNTED TO FROM P/TRAIN RELAY 40 (DIAGRAM 2 OF 4) WIPER RELAY 45 WIPER/WS FUSE 5

12 VOLT REF 3.8L 3.6L BATTERY BATTERY POSITIVE REMOTE STARTER DISABLED CLASS 2 SERIAL DATA BLK WIRE BLK/WHT WIRE BODY CONTROL MODULE (BCM) (BEHIND LEFT SIDE OF DASH, LEFT OF STEERING COLUMN) CLASS 2 SERIAL DATA CLSTR FUSE CRANK RELAY 48 CRANK VOLTAGE DK GRN WIRE GROUND DISTRIBUTION SYSTEM GRY WIRE HOLD- IN COIL HOOD AJAR SWITCH (W/ REMOTE KEYLESS ENTRY) (FRONT OF ENGINE COMPT) HOOD AJAR SWITCH SIG HOT AT ALL TIMES HOT W/ IGN 1 RELAY ENERGIZED I/P FUSE BLOCK (BEHIND RIGHT SIDE OF DASH) IGNITION SWITCH INSTRUMENT PANEL CLUSTER (IPC) LOCK LOGIC LT GRN WIRE ORG/ WIRE PCM FUSE 15 PNK IGNITION 1 VOLTAGE WIRE PNK WIRE PNK/BLK WIRE POWER DISTRIBUTION SYSTEM PPL PULL- IN COIL RED WIRE RUN WIRE SPLICE PACK START ENABLE RLY CTRL STARTER STARTER FUSE 33 UNDERHOOD FUSE BLOCK (MOUNTED TO RIGHT STRUT TOWER) WHT/BLK WIRE YEL WIRE YEL/BLK WIRE