Cadillac CTS II (2007-2014) (left rear shock tower) Wiring diagrams

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

6.2L AUTOMATIC TRANSMISSION AUTOMATIC TRANSMISSION INTERNAL MODE SWITCH (IMS) B+ VOLT BACKUP LAMP SPLY VOLT 9 8 SERIAL DATA - SERIAL DATA + BACKUP LAMP SWITCH (M/T) (RIGHT SIDE OF TRANS- MISSION) BACKUP LAMP SWITCH (M/T) (RIGHT SIDE OF TRANSMISSION) BACKUP LAMPS SPLY VOLT BCM 4 FUSE BLK WIRE BODY CONTROL MODULE (BCM) (CENTER OF DASH, COMPUTER DATA LINES SYSTEM CONTROL SOLENOID VALVE ASSEMBLY ENGINE CONTROL MODULE (ECM) (EXCEPT 6.2L: LEFT FRONT OF ENGINE COMPT) EXCEPT 6.2L EXCEPT 6.2L 6.2L GM LAN SER DATA BUS - SIG A GRN WIRE HOT AT ALL TIMES LEFT BACKUP LAMP LEFT TAIL LAMP LOGIC LOGIC INSIDE REARVIEW MIRROR (ISRVM) LT GRN WIRE NCA WIRE ORG/ WIRE PNK/BLK WIRE RED WIRE RIGHT BACKUP LAMP RIGHT TAIL LAMP SERIAL DATA BUS - SERIAL DATA BUS + BACKUP LAMP SW SIG SPLY VOLT TAN WIRE TAN/BLK WIRE TRANS- GM LAN MISSION SER DATA CONTROL BUS + MODULE SIG B SIG C (TCM) UNDERHOOD FUSE BLOCK (RIGHT FRONT OF ENGINE COMPT) WHT WIRE YEL WIRE

13 9 10 15 RF DOOR AJAR SERIAL DATA LP CTRL HI LP CTRL LO 14 15 RR DOOR AJAR SW LR DOOR AJAR SW 25 10 IC 2 CTRL SERIAL DATA 9 10 15 13 SERIAL DATA LP CTRL HI BCM 2 FUSE BLK WIRE BODY CONTROL MODULE (BCM) (CENTER OF DASH, BRN WIRE BRN/WHT WIRE COMPUTER DATA LINES SYSTEM DK GRN WIRE DRIVER DOOR LATCH (DRIVER'S DOOR) DRIVER DOOR LOCK/WINDOW SWITCH GRY/BLK WIRE HOT AT ALL TIMES I/P COMPARTMENT LAMP I/P COMPARTMENT LAMP SWITCH LEFT CARGO LAMP (WAGON) LEFT FRONT COURTESY/ READING LAMPS LEFT FRONT DOOR COURTESY LAMP LEFT I/P COURTESY LAMP LEFT REAR COURTESY/ READING LAMPS (COUPE, SEDAN) LEFT REAR DOOR (RIGHT COURTESY REAR LAMP SHOCK (SEDAN, WAGON) TOWER) LEFT SUNSHADE LF DOOR AJAR LIFTGATE AJAR SW SIG LP RLY CTRL LP SPLY VOLT LT BLU WIRE LT BLU/BLK WIRE LT BLU/WHT WIRE LT GRN/BLK WIRE ORG/ WIRE ORG/BLK WIRE PASSENGER DOOR LATCH (PASSENGER'S DOOR) PASSENGER DOOR LOCK/WINDOW SWITCH PNK/BLK WIRE PPL READING LAMP READING LAMPS (WAGON) REAR COMPARTMENT COURTESY LAMP (COUPE, SEDAN) REAR COMPARTMENT LID LATCH (COUPE, SEDAN) REAR COMPARTMENT LID LATCH (SEDAN) RED/WHT WIRE RIGHT CARGO LAMP (WAGON) RIGHT FRONT COURTESY/ READING LAMPS RIGHT FRONT DOOR COURTESY LAMP RIGHT I/P COURTESY LAMP RIGHT REAR COURTESY/ READING LAMPS (COUPE, SEDAN) RIGHT REAR DOOR COURTESY LAMP (SEDAN, WAGON) RIGHT SUNSHADE SEDAN WAGON TAN/WHT WIRE UNDERHOOD FUSE BLOCK (RIGHT FRONT BCM 7 OF ENGINE FUSE COMPT) W/ DELUXE INTERIOR LAMP PACKAGE WHT 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

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

16 15 1415 1414 RF TURN SW SIG LF TURN SW SIG 19 4 B+ SERIAL DATA 4 1 5 3 1440 1540 1315 1840 B+ B+ SPLY VOLT B+ 5382 5381 5380 27 43 63 SENS RTN SENS SPLY SENS SIG A/T B+ DETECTION SIG HAZARD SW SIG PARK LAMP ON SIG 20 10 8 PPL 2144 301 BACKUP LAMPS CIRCUIT BCM 4 FUSE BCM 5 FUSE BCM 6 FUSE BLK WIRE 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/WHT WIRE COMPUTER DATA LINES SYSTEM CONTROL MODULE (ECM) DISPLAY FUSE DK BLU WIRE DK BLU/WHT WIRE DK GRN WIRE EXCEPT 6.2L 6.2L HAZARD SWITCH HEAD HOT AT ALL TIMES INSTRUMENT PANEL CLUSTER (IPC) LEFT LEFT BACKUP LAMP LEFT FRONT STRUT TOWER) LEFT FRONT TURN SIGNAL LAMP LEFT TAIL LAMP ASSEMBLY LEFT TAIL/STOP, TURN SIGNAL LAMP LEFT TURN IND LOGIC LOGIC RADIO/HVAC CONTROL LT BLU WIRE LT BLU/WHT WIRE LT GRN WIRE PARK AUTO OFF PPL RED/WHT WIRE RIGHT RIGHT FRONT TURN SIGNAL LAMP RIGHT TURN IND SERIAL DATA SERIAL DATA - STP LP SPLY VOLT TAN WIRE TAN/BLK WIRE TRAILER PROVISION (BLUNT CUT) (WAGON) TURN SIGNAL/ MULTI-FUNCTION SWITCH UNDERHOOD FUSE BLOCK (RIGHT FRONT OF ENGINE COMPT) WHT RED/ WIRE WHT WIRE WHT/GRN WIRE WHT/RED WIRE YEL WIRE

AUXILIARY BODY CONTROL THEFT MODULE DETERRENT (XBCM) ALARM BLK WIRE COUPE COUPE, SEDAN ELECTRONIC SUSPENSION CONTROL (ESC) MODULE GRY WIRE HEATED STEERING WHEEL HEATED STEERING WHEEL CONTROL MODULE INFLATABLE RESTRAINT STEERING WHEEL MODULE COIL INSIDE REAR VIEW MIRROR (ISRVM) LEFT FRONT COURTESY/ READING LAMPS LEFT REAR COURTESY/ READING LAMPS LEFT SUNSHADE LEFT TAIL LAMP ASSEMBLY MODULE (VCIM) (IF EQUIPPED) NCA WIRE RADIO/ HVAC CONTROL RADIO REAR VIEW CAMERA REAR WINDOW DEFOGGER RIGHT FRONT COURTESY/ READING LAMPS RIGHT REAR COURTESY/ READING LAMPS RIGHT SUNSHADE TO GROUND VEHICLE COMMUNICATION INTERFACE W/ CONTINUOUSLY VARIABLE REAL TIME DAMPING MAGNETO RHEOLOGICOY W/ REAR VIEW CAMERA W/O REAR VIEW CAMERA WAGON WHT WIRE YEL 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

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