Cadillac CTS II (2007-2014) radio/hvac control 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

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 17 60 40 24 OIL PRESS SENS SIG 5-VOLT REF 1 LOW REF 15 12 14 LR DOOR AJAR SW LIFTGATE AJAR SW RR DOOR AJAR SW 1551 (OR 1500) 18 34 ENG OIL LEVEL SW SIG LOW REF 19 12 PNK 51 46 IGN 1 VOLT MIL CTRL WIRE 24 8 35 55 LOW REF ECT SENS SIG 26 25 9 44 LOW REF FUEL LEVEL SENS SIG 6.2L 6.2L EXCEPT 6.2L BATT POS VOLT BLK WIRE BLK/WHT WIRE BLU WIRE BODY CONTROL MODULE (BCM) (CENTER OF DASH, BRN WIRE BRN/WHT WIRE CLOCK COMPUTER DATA LINES SYSTEM DISPLAY DK BLU WIRE DK GRN WIRE DOOR ENGINE COMPT) ENGINE CONTROLS SYSTEM EXCEPT 6.2L EXCEPT 6.2L 6.2L FUEL LEVEL SENSOR ASSEMBLY (IN FUEL TANK) GROUND GRY WIRE HI SPD GMLAN SERIAL DATA BUS + HOT AT ALL TIMES IGN 3 VOLT LIGHTS OFF LIGHTS ON LO SPD GMLAN SERIAL DATA LOCAL INTERCONNECT NETWORK 3 LOGIC LT BLU WIRE LT BLU/BLK WIRE LT GRN/BLK WIRE NETWORK 2 ORG/ WIRE ORG/BLK WIRE PARK BRAKE SW SIG PARK BRAKE SWITCH (ON PARK BRAKE ASSEMBLY) PASSENGER DOOR LATCH ASSEMBLY (PASSENGER'S PASSENGER DOOR LOCK/ WINDOW SWITCH PNK SECONDARY FUEL LEVEL SENSOR WIRE PNK WIRE PNK/BLK WIRE POWER DISTRIBUTION SYSTEM PRIMARY FUEL LEVEL SENSOR (IN FUEL TANK) PRIMARY FUEL LEVEL SENSOR FUEL PUMP, SENDER ASSEMBLY (IN FUEL TANK) RADIO/HVAC CONTROL RDO FUSE REAR COMPARTMENT LID LATCH REAR FUSE BLOCK (RIGHT REAR OF LUGGAGE COMPT) RED WIRE RED/WHT WIRE RF DOOR AJAR RIGHT REAR DOOR LATCH (RIGHT REAR DOOR) RVC/SNSR FUSE SECONDARY FUEL LEVEL SENS SIG SECONDARY FUEL LEVEL SENSOR FUEL LEVEL SENSOR ASSEMBLY (IN FUEL TANK) TAN WIRE TAN/BLK WIRE TAN/WHT WIRE WAGON WHT WIRE YEL WIRE

AIR BAG FUSE AIR BAG IGN FUSE AIR BAG IND AIR BAG OFF IND AIR BAG ON IND BATT POSITIVE VOLT BLK/WHT WIRE BRN WIRE COMPUTER DATA LINES SYSTEM DATA SERIAL DK GRN WIRE DRIVER INFORMATION CENTER DISPLAY DRIVER SEAT BELT IND GMLAN LO SPD GROUND GRY WIRE HOT AT ALL TIMES HOT IN ON OR START I/P MOD HI CTRL STAGE 1 I/P MOD HI CTRL STAGE 2 I/P MOD LO CTRL STAGE 1 I/P MOD LO CTRL STAGE 2 IGN VOLT INFLATABLE RESTRAINT I/P MODULE INFLATABLE RESTRAINT SENSING, DIAGNOSTIC MODULE (SDM) (UNDER CENTER CONSOLE) INFLATABLE RESTRAINT STEERING WHEEL MODULE (ON STEERING WHEEL) INFLATABLE RESTRAINT STEERING WHEEL MODULE COIL (TOP OF STEERING COLUMN) INSTRUMENT PANEL CLUSTER LEFT REAR INFLATABLE RESTRAINT SIDE IMPACT SENSOR (LEFT REAR DOOR) LO SPD GM LAN SERIAL DATA LO SPD GMLAN SERIAL DATA LOGIC LT BLU WIRE LT GRN/BLK WIRE NCA WIRE ORG/ WIRE PASSENGER SEAT BELT IND PNK POWER DISTRIBUTION SYSTEM WIRE PNK WIRE PPL RADIO/HVAC CONTROL REAR FUSE BLOCK (RIGHT REAR OF LUGGAGE COMPT) RED/WHT WIRE SEDAN/WAGON SERIAL DATA SHORTING BAR STEER WHL HI CTRL STAGE 2 STEER WHL LO CTRL STAGE 2 TAN WIRE TAN/ORG WIRE UNDERHOOD FUSE BLOCK WHT WIRE YEL WIRE