Cadillac CTS II (2007-2014) logic Wiring diagrams

BLK WIRE BLK/WHT WIRE BRN WIRE COUPE, SEDAN, WAGON DATA LINK CONNECTOR (DLC) (LEFT SIDE OF DASH) DISPLY FUSE DK BLU WIRE DK GRN WIRE DRIVER DOOR LOCK/WINDOW SWITCH DRIVER WINDOW MOTOR (DRIVER'S DOOR) HOT AT ALL TIMES HVAC CONTROL MODULE (CENTER OF DASH) INFLATABLE RESTRAINT FRONT PASSENGER PRESENCE SYSTEM (PPS) SENSOR INFLATABLE RESTRAINT SENSING, DIAGNOSTIC MODULE (SDM) (UNDER CENTER CONSOLE) INSIDE REARVIEW MIRROR (ISRVM) (W/ INFOTAINMENT SYSTEM 1/2/3, REARVIEW CAMERA) INSTRUMENT PANEL CLUSTER (IPC) INTERCONNECT NETWORK 1 INTERCONNECT NETWORK 2 LEFT SIDE OBJECT SENSOR (LEFT END OF REAR BUMPER FASCIA) LIFTGATE MODULE (LGM) (RIGHT SIDE LO SPD GMLAN LO SPD GMLAN SERIAL DATA LOCAL INTERCONNECT NETWORK 1 LOCAL INTERCONNECT NETWORK 2 LOGIC MEMORY SEAT MODULE (MSM) (IF EQUIPPED) (UNDER DRIVER'S SEAT) OF LIFTGATE) PASSENGER DOOR LOCK/WINDOW SWITCH PASSENGER WINDOW MOTOR (FRONT PASSENGER'S DOOR) RADIO RADIO/HVAC CONTROL RED/WHT WIRE REMOTE CONTROL DOOR LOCK RECEIVER (RCDLR) (COUPE/SEDAN: RIGHT RIGHT SIDE OBJECT SENSOR (RIGHT END OF REAR BUMPER FASCIA) SEDAN, WAGON, COUPE SERIAL DATA SERIAL DATA LO SPD GMLAN SIDE OF REAR SHELF) (WAGON: LEFT REAR OF ROOF) TAN WIRE TAN/BLK WIRE THEFT DETERRENT MODULE (TDM) (W/O KEYLESS ENGINE START SWITCH) UNDERHOOD FUSE BLOCK (RIGHT FRONT OF ENGINE COMPT) W/ ONSTAR W/ REMOTE ENTRY STANDARD RANGE LOCK CONTROL W/ REMOTE ENTRY STANDARD RANGE LOCK CONTROL, SIDE OBSTACLE DETECTION SENSOR WAGON, W/ REMOTE ENTRY EXTENDED RANGE PASSIVE LOCK CONTROL, KEYLESS ENGINE START WAGON, W/ REMOTE ENTRY STANDARD RANGE LOCK CONTROL

BLK WIRE BLK/WHT WIRE BRN WIRE COUPE, SEDAN, WAGON DATA LINK CONNECTOR (DLC) (LEFT SIDE OF DASH) DISPLY FUSE DK BLU WIRE DK GRN WIRE DRIVER DOOR LOCK/WINDOW SWITCH DRIVER WINDOW MOTOR (DRIVER'S DOOR) HOT AT ALL TIMES HVAC CONTROL MODULE (CENTER OF DASH) INFLATABLE RESTRAINT FRONT PASSENGER PRESENCE SYSTEM (PPS) SENSOR INFLATABLE RESTRAINT SENSING, DIAGNOSTIC MODULE (SDM) (UNDER CENTER CONSOLE) INSIDE REARVIEW MIRROR (ISRVM) (W/ INFOTAINMENT SYSTEM 1/2/3, REARVIEW CAMERA) INSTRUMENT PANEL CLUSTER (IPC) INTERCONNECT NETWORK 1 INTERCONNECT NETWORK 2 LEFT SIDE OBJECT SENSOR (LEFT END OF REAR BUMPER FASCIA) LIFTGATE MODULE (LGM) (RIGHT SIDE LO SPD GMLAN LO SPD GMLAN SERIAL DATA LOCAL INTERCONNECT NETWORK 1 LOCAL INTERCONNECT NETWORK 2 LOGIC MEMORY SEAT MODULE (MSM) (IF EQUIPPED) (UNDER DRIVER'S SEAT) OF LIFTGATE) PASSENGER DOOR LOCK/WINDOW SWITCH PASSENGER WINDOW MOTOR (FRONT PASSENGER'S DOOR) RADIO RADIO/HVAC CONTROL RED/WHT WIRE REMOTE CONTROL DOOR LOCK RECEIVER (RCDLR) (COUPE/SEDAN: RIGHT RIGHT SIDE OBJECT SENSOR (RIGHT END OF REAR BUMPER FASCIA) SEDAN, WAGON, COUPE SERIAL DATA SERIAL DATA LO SPD GMLAN SIDE OF REAR SHELF) (WAGON: LEFT REAR OF ROOF) TAN WIRE TAN/BLK WIRE THEFT DETERRENT MODULE (TDM) (W/O KEYLESS ENGINE START SWITCH) UNDERHOOD FUSE BLOCK (RIGHT FRONT OF ENGINE COMPT) W/ ONSTAR W/ REMOTE ENTRY STANDARD RANGE LOCK CONTROL W/ REMOTE ENTRY STANDARD RANGE LOCK CONTROL, SIDE OBSTACLE DETECTION SENSOR WAGON, W/ REMOTE ENTRY EXTENDED RANGE PASSIVE LOCK CONTROL, KEYLESS ENGINE START WAGON, W/ REMOTE ENTRY STANDARD RANGE LOCK CONTROL

BLK WIRE BLK/WHT WIRE BRN WIRE COUPE, SEDAN, WAGON DATA LINK CONNECTOR (DLC) (LEFT SIDE OF DASH) DISPLY FUSE DK BLU WIRE DK GRN WIRE DRIVER DOOR LOCK/WINDOW SWITCH DRIVER WINDOW MOTOR (DRIVER'S DOOR) HOT AT ALL TIMES HVAC CONTROL MODULE (CENTER OF DASH) INFLATABLE RESTRAINT FRONT PASSENGER PRESENCE SYSTEM (PPS) SENSOR INFLATABLE RESTRAINT SENSING, DIAGNOSTIC MODULE (SDM) (UNDER CENTER CONSOLE) INSIDE REARVIEW MIRROR (ISRVM) (W/ INFOTAINMENT SYSTEM 1/2/3, REARVIEW CAMERA) INSTRUMENT PANEL CLUSTER (IPC) INTERCONNECT NETWORK 1 INTERCONNECT NETWORK 2 LEFT SIDE OBJECT SENSOR (LEFT END OF REAR BUMPER FASCIA) LIFTGATE MODULE (LGM) (RIGHT SIDE LO SPD GMLAN LO SPD GMLAN SERIAL DATA LOCAL INTERCONNECT NETWORK 1 LOCAL INTERCONNECT NETWORK 2 LOGIC MEMORY SEAT MODULE (MSM) (IF EQUIPPED) (UNDER DRIVER'S SEAT) OF LIFTGATE) PASSENGER DOOR LOCK/WINDOW SWITCH PASSENGER WINDOW MOTOR (FRONT PASSENGER'S DOOR) RADIO RADIO/HVAC CONTROL RED/WHT WIRE REMOTE CONTROL DOOR LOCK RECEIVER (RCDLR) (COUPE/SEDAN: RIGHT RIGHT SIDE OBJECT SENSOR (RIGHT END OF REAR BUMPER FASCIA) SEDAN, WAGON, COUPE SERIAL DATA SERIAL DATA LO SPD GMLAN SIDE OF REAR SHELF) (WAGON: LEFT REAR OF ROOF) TAN WIRE TAN/BLK WIRE THEFT DETERRENT MODULE (TDM) (W/O KEYLESS ENGINE START SWITCH) UNDERHOOD FUSE BLOCK (RIGHT FRONT OF ENGINE COMPT) W/ ONSTAR W/ REMOTE ENTRY EXTENDED RANGE PASSIVE LOCK CONTROL, KEYLESS ENGINE START W/ REMOTE ENTRY STANDARD RANGE LOCK CONTROL, SIDE OBSTACLE DETECTION SENSOR WAGON, W/ REMOTE ENTRY EXTENDED RANGE PASSIVE LOCK CONTROL, KEYLESS ENGINE START

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

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

6 4 GROUND BATT POSITIVE VOLT 6 4 GROUND BATTERY POSITIVE BLK WIRE COMPUTER DATA LINES SYSTEM COUPE COUPE, SEDAN DK GRN WIRE DR/LCK FUSE DRIVER DOOR LOCK/WINDOW SWITCH DRIVER OUTSIDE REARVIEW MIRROR (AT MIRROR) GMLAN SERIAL DATA HEATED MIRROR ELEMENT HOT AT ALL TIMES HVAC CONTROL MODULE (CENTER OF DASH) LEFT REAR WINDOW DEFOGGER NOISE FILTER LOGIC LOGIC LOW SPEED GMLAN SERIAL DATA NCA WIRE PASSENGER DOOR LOCK/WINDOW SWITCH PASSENGER OUTSIDE REARVIEW MIRROR (AT MIRROR) PPL PPL SUPPLY VOLTAGE REAR DEFOG FUSE REAR DEFOG RELAY REAR DEFOG RLY CTRL REAR DEFOGGER GRID INLINE FUSE REAR FUSE BLOCK PDM FUSE (RIGHT REAR OF LUGGAGE COMPT) REAR REAR DEFOGGER DEFOGGER IND SWITCH RADIO/HVAC CONTROLS REAR WINDOW DEFOGGER GRID REAR WINDOW DEFOGGER NOISE COIL REAR WINDOW DEFOGGER RELAY RED/BLK WIRE RED/WHT WIRE RIGHT REAR WINDOW DEFOGGER NOISE FILTER SEDAN WAGON SEDAN, COUPE SPLY VOLT TAN WIRE UNDERHOOD FUSE BLOCK (RIGHT FRONT OF ENGINE COMPT) WAGON WHT 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

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