Cadillac CTS II (2007-2014) body control module (bcm) (center of dash, Wiring diagrams

16 17 DATA BUS+ DATA BUS- 21 22 DATA BUS - DATA BUS + 6 7 DATA BUS - DATA BUS + 8 9 DATA BUS (+) DATA BUS (-) ACC WAKE-UP SER DATA BODY CONTROL MODULE (BCM) (CENTER OF DASH, COM ENABLE SERIAL DATA COUPE, SEDAN DATA BUS - DATA BUS - DATA BUS+ DATA BUS+ DATA BUS- DATA BUS- DATA LINK RESISTOR (LEFT SIDE OF LUGGAGE COMPT) DK BLU WIRE DK GRN WIRE ELECTRONIC SUSPENSION CONTROL (ESC) EXCEPT AWD EXCEPT AWD, W/O PEDESTRIAN PROTECTION, ONSTAR W/ PEDESTRIAN PROTECTION FUEL PUMP FLOW CONTROL MODULE (RIGHT REAR OF LUGGAGE COMPT) FUEL SYSTEM CONTROL MODULE LO SPD GMLAN SERIAL DATA LOCAL INTERCONNECT NETWORK 3 LT BLU WIRE MODULE (LEFT SIDE OF LUGGAGE COMPT) PARKING BRAKE CONTROL MODULE SEAT) SEDAN, COUPE SERIAL DATA COM ENABLE TAN WIRE TAN/BLK WIRE UNDERHOOD FUSE BLOCK (RIGHT FRONT OF ENGINE COMPT) W/ ELECTRONIC PARKING BRAKE W/ HIGH INTENSITY DISCHARGE W/ ONSTAR W/O ELECTRONIC PARKING BRAKE W/O PEDESTRIAN PROTECTION WAGON

16 17 DATA BUS+ DATA BUS- 21 22 DATA BUS - DATA BUS + 6 7 DATA BUS - DATA BUS + 8 9 DATA BUS (+) DATA BUS (-) ACC WAKE-UP SER DATA BODY CONTROL MODULE (BCM) (CENTER OF DASH, COM ENABLE SERIAL DATA COUPE, SEDAN DATA BUS - DATA BUS - DATA BUS+ DATA BUS+ DATA BUS- DATA BUS- DATA LINK RESISTOR (LEFT SIDE OF LUGGAGE COMPT) DK BLU WIRE DK GRN WIRE ELECTRONIC SUSPENSION CONTROL (ESC) EXCEPT AWD EXCEPT AWD, W/O PEDESTRIAN PROTECTION, ONSTAR W/ PEDESTRIAN PROTECTION FUEL PUMP FLOW CONTROL MODULE (RIGHT REAR OF LUGGAGE COMPT) FUEL SYSTEM CONTROL MODULE LO SPD GMLAN SERIAL DATA LOCAL INTERCONNECT NETWORK 3 LT BLU WIRE MODULE (LEFT SIDE OF LUGGAGE COMPT) PARKING BRAKE CONTROL MODULE SEAT) SEDAN, COUPE SERIAL DATA COM ENABLE TAN WIRE TAN/BLK WIRE UNDERHOOD FUSE BLOCK (RIGHT FRONT OF ENGINE COMPT) W/ ELECTRONIC PARKING BRAKE W/ HIGH INTENSITY DISCHARGE W/ ONSTAR W/O ELECTRONIC PARKING BRAKE W/O PEDESTRIAN PROTECTION WAGON

16 17 DATA BUS+ DATA BUS- 22 21 DATA BUS + DATA BUS - 25 24 39 40 DATA BUS + DATA BUS - DATA BUS - DATA BUS + 6 7 DATA BUS - DATA BUS + 8 9 DATA BUS (+) DATA BUS (-) ACC WAKE-UP SERIAL DATA BODY CONTROL MODULE (BCM) (CENTER OF DASH, COUPE, SEDAN DATA BUS - DATA BUS - DATA LINK RESISTOR (RIGHT SIDE OF LUGGAGE COMPT) DK BLU WIRE DK GRN WIRE ELECTRONIC SUSPENSION CONTROL (ESC) MODULE (LEFT SIDE OF LUGGAGE COMPT) FUEL PUMP FLOW CONTROL MODULE (RIGHT REAR OF LUGGAGE COMPT) FUEL SYSTEM CONTROL MODULE LO SPD GMLAN SERIAL DATA LO SPD GMLAN SERIAL DATA LOCAL INTERCONNECT NETWORK 3 LT BLU WIRE PARKING BRAKE CONTROL MODULE SERIAL DATA COM ENABLE TAN WIRE TAN/BLK WIRE UNDERHOOD FUSE BLOCK (RIGHT FRONT OF ENGINE COMPT) W/ ELECTRONIC PARKING BRAKE W/ HIGH INTENSITY DISCHARGE W/ ONSTAR W/O ELECTRONIC PARKING BRAKE W/O PEDESTRIAN PROTECTION WAGON

53 33 39 40 SERIAL DATA + SERIAL DATA - 6.2L 3.0L, 3.6L 66 67 VSS LO SIG VSS HI SIG PPL BATT VOLT GROUND BLK/WHT WIRE BODY CONTROL MODULE (BCM) (CENTER OF DASH, BRN WIRE COMPUTER DATA LINES SYSTEM CONTROL SOLENOID VALVE ASSEMBLY AUTOMATIC TRANSMISSION DATA BUS+ DATA BUS+ DATA BUS- DATA BUS- DK GRN/WHT WIRE FRONT UPPER BEAM PEDESTRIAN IMPACT DETECTION SENSOR GRY WIRE HI SPD GMLAN SERIAL DATA BUS + HOOD HI REF HOOD LO REF HOOD LO REF HOOD HI REF PPL HOT AT ALL TIMES UNDERHOOD FUSE BLOCK (RIGHT FRONT OF ENGINE COMPT) HOT W/ PWR/TRN RELAY ENERGIZED LEFT ACTIVE HOOD HINGE ACTUATOR LO REF LT BLU WIRE MODULE SIG ORG/ WIRE PED PRO FUSE PEDESTRIAN IMPACT DETECTION MODULE PNK WIRE PPL PPL/WHT WIRE REAR UPPER BEAM PEDESTRIAN IMPACT DETECTION SENSOR RED/WHT WIRE RIGHT ACTIVE HOOD HINGE ACTUATOR SENSOR SIG SENSOR SIG LO REF SENSOR SIG MODULE SIG SERIAL DATA SENSOR SIG SENSOR LO REF SHORTING BAR TAN WIRE TAN/BLK WIRE TOSS/BRK VAC RLY FUSE TRANSMISSION CONTROL MODULE (TCM) VEHICLE SPEED SENSOR (6.2L M/T) VEHICLE SPEED SENSOR (EXCEPT 6.2L M/T) (LEFT REAR OF TRANSMISSION) VSS HIGH SIG VSS HIGH SIG GND BATT+ VOLT 2 3 WHT WIRE YEL WIRE

15 14 13 5 VOLT REF LOW REF STP LMP SW SIG 5 VOLT REF A/T ABS IND. BLK WIRE BLK/BRN WIRE BLK/WHT WIRE BLK/YEL WIRE BLU/YEL WIRE BODY CONTROL MODULE (BCM) (CENTER OF DASH, BRAKE BOOSTER VACUUM SENSOR (EXCEPT 6.2L) (ON BOOSTER) BRAKE IND BRAKE PEDAL POSITION SENSOR (TOP OF BRAKE PEDAL) BRAKE POSITION SENSOR SIGNAL BRN WIRE BRN/WHT WIRE COMPUTER DATA LINES SYSTEM DK BLU WIRE DK GRN WIRE DRIVER INFORMATION CENTER (DIC) DISPLAY ENGINE CONTROL MODULE (ECM) (EXCEPT 6.2L: LEFT FRONT OF ENGINE COMPT) EXCEPT 6.2L 6.2L GRY WIRE HIGH SPD GMLAN SERIAL DATA HIGH SPEED GMLAN SERIAL DATA BUS + INFLATABLE RESTRAINT STEERING WHEEL MODULE COIL (TOP OF STEERING COLUMN) INSTRUMENT PANEL CLUSTER (IPC) LOGIC LOW REF LOW SPD GMLAN SERIAL DATA NCA WIRE ORG/ WIRE ORG/BLK WIRE PARK BRAKE SWITCH (ON PARK BRAKE ASSEMBLY) PARK BRK SW SIG PPL RED WIRE RED/WHT WIRE REMOTE RADIO CTRL SPLY VOLT RIGHT FRONT WHEEL SPEED SENSOR (WSS) (RIGHT FRONT WHEEL HUB ASSEMBLY) RIGHT STEERING WHEEL CONTROL SWITCH SEEK DOWN SEEK UP SOUND SYSTEMS STEERING WHEEL CTRLS SIG TAN WIRE TAN/BLK WIRE TRACTION CONTROL OFF IND TRACTION CONTROL SWITCH LEFT STEERING WHEEL CONTROL SWITCH (6.2L) TRACTION CONTROL SWITCH RADIO/HVAC CONTROL (EXCEPT 6.2L) TRACTION CTRL SW SIG TRANSMISSIONS, PPL CRUISE CONTROL SYSTEMS (STEERING WHEEL HARNESS) VARIABLE EFFORT STEERING ACTUATOR (POWER STEERING RACK ASSEMBLY) VOICE 1 5 PPL PPL VOL (-) VSC IND WHT WIRE WHT/GRN WIRE WHT/RED WIRE YEL WIRE YEL/BLK WIRE

1 2 3 4 5 6 7 8 9 10 11 12 13 14 15 16 TEMP DR CTRL RIGHT AIR TEMP 1 2 BLWR MTR SPLY VOLT GND 1 2 SENS SIG SENS SIG AIR QUALITY SENSOR (RIGHT RADIATOR SUPPORT) AUTO SWITCH BLK WIRE BLK/WHT WIRE BLOWER MOTOR (RIGHT SIDE OF HVAC MODULE) BLOWER MOTOR CONTROL MODULE (LOWER LEFT SIDE OF BLOWER MOTOR) BLOWER MOTOR SWITCH LO BLWR FUSE BLWR MTR SPD CTRL BODY CONTROL MODULE (BCM) (CENTER OF DASH, BRN WIRE COMPUTER DATA LINES SYSTEM DEFOGGER SYSTEM DISPLY FUSE DK BLU WIRE DK BLU/WHT WIRE DK GRN WIRE DR SIG DRIVER AIR TEMPERATURE ACTUATOR (LEFT SIDE OF HVAC MODULE) EVAPORATOR TEMPERATURE SENSOR (RIGHT SIDE OF EVAPORATOR CASE) GND BATT POS VOLT GRY WIRE GRY/BLK WIRE HOT AT ALL TIMES HOT W/ IGNITION 1 RELAY ENERGIZED HVAC CONTROL MODULE (CENTER OF DASH) IGN 3 VOLT ISRVM FUSE LO LEFT AIR TEMPERATURE SWITCH LO MODE SWITCH LO RIGHT AIR TEMPERATURE SWITCH LOGIC LT BLU WIRE LT BLU/BLK WIRE LT GRN/BLK WIRE MODE ACTUATOR (LEFT SIDE OF HVAC MODULE) ORG/ WIRE PASSENGER AIR TEMPERATURE ACTUATOR (RIGHT SIDE OF HVAC MODULE) PNK WIRE POS SIG DEFOGGER SWITCH 5 6 7 8 9 10 11 12 13 14 15 16 17 18 POWER DISTRIBUTION SYSTEM PPL PPL/WHT WIRE RADIO/HVAC CONTROL RECIRCULATION ACTUATOR (RIGHT SIDE OF HVAC MODULE) RECIRCULATION SWITCH RED/BLK WIRE RED/WHT WIRE RLY CTRL LO SPD GMLAN IGN 3 VOLT GND LO REF SENS SIG SENS SIG SPD SIG LO SPD GMLAN BATT POS VOLT UNDERHOOD FUSE BLOCK (RIGHT FRONT OF ENGINE COMPT) W/SPO W/O SPO DVD DVD WHT WIRE WHT/BLK WIRE YEL WIRE YEL/BLK WIRE YEL/DK GRN WIRE YEL/RED WIRE

1 2 COURTESY LAMPS SPLY VOLT BATTERY POSITIVE VOLT 3 4 5 6 7 8 9 10 11 12 13 14 15 16 17 18 19 20 21 22 23 24 25 I/P DIMMER SW SIG BLK WIRE BLK/BRN WIRE BLK/WHT WIRE BLU/YEL WIRE BODY CONTROL MODULE (BCM) (CENTER OF DASH, BRN WIRE BRN/WHT WIRE COMPUTER DATA LINES SYSTEM COURTESY LAMP RLY CTRL COURTESY LAMPS SW ON SIG CRUISE CONTROL SYSTEM CRUISE CONTROL, SOUND SYSTEMS CRUISE CTRL IND DIMMING SIG DK BLU WIRE DK BLU/WHT WIRE DK GRN WIRE DK GRN/WHT WIRE EXTERIOR LIGHTS SYSTEM ANTI-LOCK BRAKES SYSTEM SHIFT INTERLOCK SYSTEM GRN/WHT WIRE GRY WIRE GRY/BLK WIRE HAZARD SW SIG DRL AMBIENT LIGHT SENS SIG AUTOMATIC HEADLAMP RLY CTRL HEADLIGHTS SYSTEM HEADLIGHTS SYSTEM WIPER/WASHER SYSTEM HEADLIGHTS SYSTEM SHIFT INTERLOCK SYSTEM HOT AT ALL TIMES IC 2 CTRL IGNITION SWITCH INTERIOR LIGHTS SYSTEM COMPUTER DATA LINES SYSTEM LT BLU WIRE LT BLU/WHT WIRE LT GRN WIRE LT GRN/BLK WIRE OFF ORG/ WIRE ORG/WHT WIRE PARK LAMP SW ON SIG PNK WIRE PNK/BLK WIRE POWER WINDOWS SYSTEM POWER WINDOWS SYSTEM 1307 5060 PPL PPL PPL PPL/WHT WIRE PWR WIND MASTER SW LKOUT SIG LOW SPD GMLAN SERIAL DATA PWR WIND MASTER SW RR UP SIG PWR WIND MASTER SW LR DN SIG PPL RED/WHT WIRE RR FOG LP SW SIG RUN WIRE SHIFT POSITION SIG TAN WIRE TAN/BLK WIRE TRANSMISSION SYSTEM WIPER/ WASHER SYSTEM TRANSMISSIONS SYSTEM TRUNK, TAILGATE, FUEL DOORS SYSTEM W/O REMOTE START WHT WIRE WHT/BLK WIRE WIPER/WASHER SYSTEM SOUND SYSTEMS YEL WIRE

1317 319 318 482 2268 1969 5531 481 HEADLIGHTS SYSTEM 18 19 EXTERIOR LIGHTS SYSTEM 1970 45 HEADLIGHTS SYSTEM EXTERIOR LIGHTS SYSTEM 690 24 INTERIOR LIGHTS SYSTEM EXTERIOR LIGHTS SYSTEM BCM 1 BCM 4 FUSE FUSE FUSE FUSE FUSE BCM 2 BCM 3 BCM 5 BCM 6, 7 FUSE BLK WIRE BLK/WHT WIRE BODY CONTROL MODULE (BCM) (CENTER OF DASH, BRN WIRE COMPUTER DATA LINES SYSTEM DK BLU WIRE DK BLU/WHT WIRE DK GRN WIRE DK GRN/WHT WIRE DOOR LOCKS SYSTEM DRL SPLY VOLT GND BATTERY POSITIVE VOLT FOG LAMP RLY CTRL GRY WIRE GRY/BLK WIRE HDLP RLY CTRL PARK LAMP SPLY VOLT HEADLIGHTS SYSTEM HEADLIGHTS SYSTEM ANTI-THEFT SYSTEM HOT AT ALL TIMES LIFTGATE AJAR SW SIG LT BLU WIRE LT BLU/BLK WIRE LT BLU/WHT WIRE LT GRN WIRE LT GRN/BLK WIRE ORG/ WIRE ORG/BLK WIRE PNK WIRE PNK/BLK WIRE PNK/WHT WIRE POWER DISTRIBUTION SYSTEM PPL REAR FUSE BLOCK (RIGHT REAR OF LUGGAGE COMPT) RED WIRE RED/WHT WIRE RH TRAILER TURN SIG RLY CTRL LH TRAILER TURN SIG RLY CTRL RR DOOR AJAR SW SIG LR DOOR AJAR SW SIG LR DOOR OPEN SW SIG RR FOG LP RLY CTRL IGN 1 VOLT PNK WIRE RVC/SNSR FUSE STARTING/CHARGING SYSTEM TAN WIRE TRUNK, TAILGATE, FUEL DOORS, DOOR LOCKS SYSTEMS UNDERHOOD FUSE BLOCK (RIGHT FRONT OF ENGINE COMPT) WHT WIRE WIPER/WASHER SYSTEM YEL WIRE

12 11 44 64 29 66 16 32 34 70 54 TAC MOTOR CTRL CLOSE TAC MOTOR CTRL OPEN 1840 1840 1840 451 BATT POSITIVE VOLT 3 1 2 BATT POSITIVE VOLT VSS HI SIG GND 3 9 BATT POSITIVE VOLT GND 53 34 33 14 15 30 37 49 35 33 47 36 PPL LOW REF APP SENS 2 SIG 6.2L EXCEPT 6.2L 6.2L EXCEPT 6.2L 11 11 66 67 VEHICLE SPD SENS VSS LOW REF PPL A/T APP SENS 1 SIG LOW REF BATT POSITIVE VOLT BCM 6, 7 FUSE BLK/BRN WIRE BLK/WHT WIRE BLK/YEL WIRE BLU/YEL WIRE BODY CONTROL MODULE (BCM) (CENTER OF DASH, BRAKE PEDAL POSITION SENSOR (TOP OF BRAKE PEDAL) BRN WIRE COMPUTER DATA LINES CRUISE SYSTEM IND COMPUTER DATA LINES SYSTEM (OR 5380) (OR 5382) (OR 5381) 7360 7361 CRUISE CTRL IND SIG CRUISE CTRL SW SIG DK BLU WIRE DK BLU/WHT WIRE DK GRN WIRE DRIVER INFORMATION CENTER DISPLAY (DIC) GRN/WHT WIRE GRY WIRE HOT AT ALL TIMES HOT AT ALL TIMES REAR FUSE BLOCK (RIGHT REAR ECM FUSE OF LUGGAGE COMPT) HOT W/ PWR/TRN RELAY ENERGIZED INSTRUMENT PANEL CLUSTER (IPC) LOGIC LT BLU WIRE LT GRN WIRE M/T ORG/DK GRN WIRE POWER DISTRIBUTION SYSTEM PPL PPL CTRL SPLY VOLT PPL/WHT WIRE RED WIRE RED/WHT WIRE SERIAL DATA STOP LAMP SW SIG TAN WIRE TAN/BLK WIRE TOSS/BRAKE VAC RLY FUSE TP SENS 1 SIG LOW REF TP SENS 2 SIG UNDER HOOD FUSE BLOCK (RIGHT FRONT OF ENGINE COMPT) VEHICLE SPEED SENSOR (VSS) (EXCEPT 6.2L, M/T) (LEFT REAR OF TRANSMISSION) VSS HIGH SIG WHT WIRE WHT/BLK WIRE WHT/GRN WIRE WHT/RED WIRE YEL WIRE

1 2 3 4 5 B+ ACC VOLT GND 8 9 DATA BUS (+) DATA BUS (-) BLK WIRE BLK/WHT WIRE BODY CONTROL MODULE (BCM) (CENTER OF DASH, BRN WIRE COMPUTER DATA LINES SYSTEM DK GRN WIRE DRIVER INFORMATION CENTER (DIC) DISPLAY HOOD AJAR SW HOOD AJAR SWITCH (W/ REMOTE START) HOT AT ALL TIMES HOT AT ALL TIMES UNDERHOOD FUSE BLOCK DISPLY FUSE (RIGHT FRONT OF ENGINE COMPT) IGNITION SWITCH INSTRUMENT PANEL CLUSTER (IPC) LOCK LOGIC LOW GMLAN PNK/BLK WIRE POWER DISTRIBUTION SYSTEM PPL PPL HOOD SW SIG PWR/ MODING FUSE RED WIRE RED/WHT WIRE RUN WIRE SECURITY IND TAN WIRE TAN/BLK WIRE THEFT DETERRENT CONTROL MODULE (W/O REMOTE START) (TOP OF STEERING COLUMN) WHT WIRE YEL WIRE