Cadillac CTS II (2007-2014) power distribution system Wiring diagrams

14 15 16 17 18 19 20 21 22 23 24 25 VARIABLE EFFORT STEERING ACTR CTRL 26 27 28 29 30 31 32 33 34 35 36 37 38 VARIABLE EFFORT STEERING ACTR SPLY VOLT 5-VOLT REF VEHICLE SPEED SIGNAL CAN BUS HIGH SERIAL DATA AUXILIARY BRAKE BOOSTER PUMP BATTERY POSITIVE VOLTAGE BLK WIRE BRAKE BOOSTER VACUUM SENSOR SIG BRAKE BOOSTER PUMP RLY CTRL BRAKE PRESSURE MODULATOR VALVE BRK VAC PUMP FUSE (EXCEPT 6.2L) BRN WIRE CAN BUS CAN BUS IGN HIGH LOW CAN BUS HIGH CAN BUS IGN LOW CAN BUS LOW SERIAL DATA COMPUTER DATA LINES SYSTEM DISPLY FUSE DK GRN WIRE DK GRN/WHT WIRE ELECTRONIC BRAKE CONTROL MODULE (EBCM) (RIGHT FRONT CORNER OF ENGINE COMPT) GMLAN SERIAL DATA BUS+ GMLAN SERIAL DATA BUS+ BATTERY POSITIVE VOLTAGE GMLAN SERIAL DATA BUS- GMLAN SERIAL DATA BUS- GND GRN WIRE GRY WIRE GRY/BLK WIRE HOT AT ALL TIMES HOT AT ALL TIMES UNDERHOOD FUSE BLOCK (RIGHT FRONT OF ENGINE COMPT) ABS HOT W/ IGN 1 RELAY ENERGIZED LEFT FRONT WHEEL SPEED SENSOR (WSS) (LEFT FRONT WHEEL HUB ASSEMBLY) LH FRT WHEEL SPD SENS SIG LH FRT WHEEL SPD SENS SIG LH RR WHEEL SPD SENS SIG RH FRT WHEEL SPD SENS SIG LOW REF RH FRT WHEEL SPD SENS SIG 12 VOLT REF 12 VOLT REF LT BLU WIRE LT GRN/BLK WIRE NCA WIRE ORG/ WIRE POWER DISTRIBUTION SYSTEM RED WIRE RED/BLK WIRE RED/WHT WIRE RH RR WHEEL SPD SENS SIG RIGHT REAR WHEEL SPEED SENSOR (WSS) (RIGHT REAR WHEEL HUB ASSEMBLY) SERIAL DATA COMMUNICATION ENABLE STEERING WHEEL POSITION SENSOR (TOP OF STEERING COLUMN) TAN WIRE TAN/BLK WIRE TAN/WHT WIRE TOSS/BRK ABS VAC RELAY FUSE (EXCEPT 6.2L) MTR FUSE FUSE WHT WIRE YAW RATE-LATERAL ACCELERATION SENSOR (UNDER CENTER CONSOLE) 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

3.6L, 3.0L 3.6L, 6.2L 3.0L 5-VOLT REF 5-VOLT REF 1 6.2L 6.2L 3.0L, 3.6L A/C CMPRSR CLTCH RELAY A/C COMPRESSOR CLUTCH RLY CTRL A/C REFRIGERANT PRESS SENS SIG A/C REFRIGERANT PRESSURE SENSOR (ON A/C AC CLTCH FUSE BLK WIRE CHARGE AIR COOLER (CAC) COOLANT PUMP CHARGE AIR COOLER (CAC) COOLANT PUMP RELAY (6.2L) CHARGE AIR COOLER COOLANT PUMP CTRL COMPUTER DATA LINES SYSTEM DK BLU WIRE DK GRN WIRE DK GRN/WHT WIRE ECT SENS SIG EMIS 2 FUSE ENGINE COOLING FAN ENGINE COOLING FAN RESISTOR FAN 1 FUSE (3.6L, 3.0L) (6.2L) FAN 1 RELAY FAN 2 RELAY FAN S/P RELAY GRY (OR BLK) WIRE GRY WIRE HI SPD COOLING FAN RLY CTRL HI SPD GMLAN SERIAL DATA BUS + HOT AT ALL TIMES HOT AT ALL TIMES FAN 2 FUSE HOT W/ PWR/ TRN RELAY ENERGIZED INCLR FUSE LEFT ENGINE COOLING FAN (LEFT SIDE OF RADIATOR) LEFT FRONT STRUT TOWER) LO REF LO SPD COOLING FAN RLY CTRL LT BLU WIRE LT BLU/BLK WIRE LT GRN/BLK WIRE ORG/BLK WIRE PNK WIRE PNK/BLK WIRE POWER DISTRIBUTION SYSTEM RED/WHT WIRE REFRIGERANT LINE) RIGHT ENGINE COOLING FAN (RIGHT SIDE OF RADIATOR) SUNLOAD SENSOR (TOP CENTER OF DASH) TAN WIRE TAN/BLK WIRE UNDERHOOD FUSE BLOCK (RIGHT FRONT OF ENGINE COMPT) WHT WIRE 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

3.0L&3.6L 3.6L, 3.0L 6.2L BLK WIRE CHARGE AIR COOLER (CAC) COOLANT PUMP CHARGE AIR COOLER (CAC) COOLANT PUMP RELAY (6.2L) CHARGE AIR COOLER COOLANT PUMP CTRL COMPUTER DATA LINES SYSTEM DK BLU WIRE DK GRN WIRE ECT SENS SIG EMIS 2 FUSE ENGINE COOLING FAN ENGINE COOLING FAN RESISTER FAN 1 FUSE (3.6L, 3.0L) (6.2L) FAN 1 RELAY FAN 2 RELAY FAN S/P RELAY FAN-2 FUSE GRY WIRE HI SPD COOLING FAN RLY CTRL HI SPD GMLAN SERIAL DATA BUS + HOT AT ALL TIMES HOT W/ PWR/ TRN RELAY ENERGIZED HVAC CONTROL MODULE (CENTER OF DASH) INCLR FUSE LEFT COOLING FAN (LEFT SIDE OF RADIATOR) LEFT FRONT STRUT TOWER) LO REF LO SPD COOLING FAN RLY CTRL LO SPD GMLAN SERIAL DATA LT BLU WIRE PNK WIRE PNK/BLK WIRE POWER DISTRIBUTION SYSTEM RED/WHT WIRE RIGHT COOLING FAN (RIGHT SIDE OF RADIATOR) TAN WIRE TAN/BLK WIRE UNDERHOOD FUSE BLOCK (RIGHT FRONT OF ENGINE COMPT) WHT WIRE 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

BATTERY VOLTAGE LR POSITION SENS BLK WIRE BRN WIRE COMPUTER DATA LINES SYSTEM DISPLAY FUSE DK GRN WIRE DRIVER INFORMATION CENTER (DIC) DISPLAY ELECTRONIC SUSPENSION CONTROL (ESC) MODULE (LEFT SIDE OF LUGGAGE COMPT) GMLAN SER DATA - GMLAN SER DATA + LF SENSOR LOW REF RR DAMPING CTRL GMLAN SER DATA - GMLAN SER DATA + RF SENSOR LOW REF LR SENSOR LOW REF GMLAN SERIAL DATA GRN WIRE HOT AT ALL TIMES LEFT FRONT SHOCK ABSORBER ACTUATOR (TOP OF LEFT FRONT SHOCK) LEFT FRONT SUSPENSION POSITION SENSOR (IN LEFT FRONT STRUT TOWER) LEFT REAR SHOCK ABSORBER ACTUATOR (TOP OF LEFT REAR SHOCK) LEFT REAR SUSPENSION POSITION SENSOR (IN LEFT REAR STRUT TOWER) LF POSITION SENS RF POSITION SENS RR POSITION SENS LF SENS VOL REF RF SENS VOL REF LR SENS VOL REF RR SENS VOL REF LO SPD GMALN SERIAL DATA LOGIC INSTRUMENT PANEL CLUSTER (IPC) LOGIC RADIO/HVAC CONTROL LR DAMPER LO REF RF DAMPER LO REF LF DAMPER LO REF SPD DATA COMM ENABLE LR DAMPING CTRL PPL RR DAMPER LO REF RF DAMPER CTRL LF DAMPER CTRL GROUND LT BLU WIRE LT BLU/BLK WIRE LT GRN WIRE LT GRN/BLK WIRE LT GRN/WHT WIRE MRRTD FUSE NCA WIRE ORG/ WIRE ORG/BLK WIRE POWER DISTRIBUTION SYSTEM PPL PPL/WHT WIRE RED WIRE RED/WHT WIRE RIDE CONTROL SWITCH RIGHT FRONT SHOCK ABSORBER ACTUATOR (TOP OF RIGHT FRONT SHOCK) RIGHT FRONT SUSPENSION POSITION SENSOR (IN RIGHT FRONT STRUT TOWER) RIGHT REAR SHOCK ABSORBER ACTUATOR (TOP OF RIGHT REAR SHOCK) RIGHT REAR SUSPENSION POSITION SENSOR (IN RIGHT REAR STRUT TOWER) RR SENSOR LOW REF TAN WIRE TAN/BLK WIRE TAN/WHT WIRE UNDERHOOD FUSE BLOCK (RIGHT FRONT OF ENGINE COMPT) WHT WIRE WHT/BLK WIRE YEL WIRE

15 18 24 HOOD AJAR SW HORN RLY CTRL PARK LP SPLY 16 15 14 12 LR DOOR OPEN SW LR DOOR AJAR SW RR DOOR AJAR SW LIFTGATE AJAR SW 18 19 PPL 5714 5709 5713 ANTENNA LOW ANTENNA SIG ANTENNA LOW PNK WIRE 8 9 DATA BUS (+) DATA BUS (-) 80 3440 DISTRIBUTION SYSTEM 9 7 DRV DOOR UNLCK DRV DOOR UNLCK ANTENNA SIG BLK WIRE BLK/WHT WIRE BRN WIRE COMPUTER DATA LINES SYSTEM COUPE DISPLY FUSE DK BLU WIRE DK BLU/WHT WIRE DK GRN WIRE DOOR HANDLE KEYLESS ENTRY ANTENNA DRIVER DOOR HANDLE SWITCH (SEDAN/WAGON) FUEL DOOR RELEASE ACTUATOR (W/ REMOTE CONTROL) (RIGHT REAR OF LUGGAGE COMPT) GRY WIRE HEADLINER KEYLESS ENTRY ANTENNA (WAGON) (CENTER REAR OF ROOF) HOOD AJAR SWITCH (W/ REMOTE START) HORNS SYSTEM EXTERIOR LIGHTS SYSTEM HOT AT ALL TIMES IGNITION SW SIG B+ LEFT KEYLESS ENTRY ANTENNA LEFT REAR DOOR HANDLE SWITCH (SEDAN/WAGON) LEFT REAR DOOR LATCH (SEDAN/WAGON) (LEFT REAR DOOR) LT BLU WIRE LT BLU/BLK WIRE LT GRN WIRE LT GRN/BLK WIRE NCA WIRE ORG/ WIRE ORG/BLK WIRE PNK PASS SW SIG RELEASE CTRL DRV SW SIG GND (OR 5797) 5882 1051 WIRE PNK WIRE PNK/BLK WIRE POWER POWER DISTRIBUTION SYSTEM PPL PPL HOOD SW SIG PPL/WHT WIRE REAR COMPARTMENT KEYLESS ENTRY ANTENNA REAR COMPARTMENT LID LATCH REAR FUSE BLOCK (RIGHT REAR OF LUGGAGE COMPT) RED/WHT WIRE RIGHT REAR DOOR HANDLE SWITCH (SEDAN/WAGON) RIGHT REAR DOOR LATCH (SEDAN/WAGON) (RIGHT REAR DOOR) RKE/PASS KEY/MDL FUSE RR DR HANDLE SW LR DR HANDLE SW SHIFT POS SIG SEDAN SEDAN, WAGON, COUPE SEDAN/WAGON SERIAL DATA SHIFT INTERLOCK SYSTEM TAN WIRE TAN/BLK WIRE TRUNK, TAILGATE, FUEL DOORS SYSTEM UNDERHOOD FUSE BLOCK (RIGHT FRONT OF ENGINE COMPT) WHT WIRE YEL WIRE YEL/BLK 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

5 V REF BATT VOL BLK WIRE BRN WIRE BRN/WHT WIRE CNSTR VENT FUSE COMPUTER COMPUTER DATA COMPUTER DATA LINES SYSTEM DATA BUS - DATA LINES DK BLU WIRE DK GRN WIRE DK GRN/WHT WIRE DRAIN WIRE DRIVER INFORMATION CENTER (DIC) ECM FUSE ECM, TCM IGN FUSE EMIS 1 FUSE EMIS 2 FUSE ENGINE COOLANT TEMPERATURE SENSOR (LEFT SIDE OF CYLINDER HEAD) FUEL PUMP FLOW CONTROL MODULE (RIGHT REAR OF LUGGAGE COMPT) FUEL PUMP FUSE GRY WIRE GRY/WHT WIRE HOT AT ALL TIMES HOT W/ IGN 1 RELAY ENERGIZED IGN VOLT INSTRUMENT PANEL CLUSTER (IPC) LINES SYSTEM LO SPD GMLAN LOGIC LOW REF LT BLU WIRE LT GRN WIRE MALFUNCTION IND LAMP (MIL) NCA WIRE ODD EVEN BRK VAC ECM COILS COILS RLY FUSE FUSE FUSE FUSE ORG/BLK WIRE PNK WIRE PNK/BLK WIRE POWER DISTRIBUTION POWER DISTRIBUTION SYSTEM PPL PWR/ TRN RELAY REAR FUSE BLOCK (RIGHT REAR OF LUGGAGE COMPT) RED/WHT WIRE RELAY CTRL SENS SIG SERIAL DATA SPLY FUEL PUMP SYSTEM TAN WIRE TAN/BLK WIRE TOSS/ UNDERHOOD FUSE BLOCK (RIGHT FRONT OF ENGINE COMPT) WAGON WAGON W/ ELECTRONICALLY OPERATED PARKING BRAKE WAGON W/O ELECTRONICALLY OPERATED PARKING BRAKE YEL WIRE YEL/WHT WIRE