Cadillac CTS II (2007-2014) underhood fuse block (right front of engine compt) 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

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

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

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

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

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

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

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