Cadillac STS I facelift (2007-2011) (in steering column harness) Wiring diagrams

1 PPL/ 5 LT 6 LT ANTENNA SIG AUDIO COMMON AUDIO SIG + AUDIO SIG RH TV BATT POSITIVE BATTERY BLK WIRE BLU WIRE BRN WIRE BRN/WHT WIRE CELLULAR, DIGITAL RADIO ANTENNA COAX COAX COAX COAX COAX COMPUTER DATA LINES SYSTEM CRUISE CONTROL SYSTEM DIGITAL RADIO RECEIVER (RIGHT SIDE OF REAR PACKAGE SHELF) DK BLU WIRE DK GRN WIRE DK GRN/WHT WIRE DOWN VOL DRAIN WIRE GRN WIRE GROUND AUDIO COMMON GRY WIRE GRY/BLK WIRE LEFT STEERING WHEEL CONTROL SWITCH LH TV LO SPD GMLAN LT BLU WIRE LT BLU/BLK WIRE LT BLU/WHT WIRE LT GRN WIRE LT GRN/WHT WIRE MUTE NCA WIRE ORG/ WIRE PERSONALIZATION PPL PPL 7 8 9 10 11 12 13 14 15 16 17 18 RED/WHT WIRE RETURN DRAIN WIRE RIGHT STEERING WHEEL CONTROL SWITCH SEEK SEEK UP SERIAL DATA SRCE TAN WIRE TELEVISION ANTENNA AMPLIFIER TELEVISION ANTENNA MODULE TELEVISION REAR GLASS ANTENNA VIDEO RGB LOW REF VOL UP VOLT W/ DIGITAL RADIO W/O DIGITAL RADIO WHT WIRE

1 2 3 4 5 6 IGNITION 1 VOLTAGE 3 27 GND 5 V REF LO REF SENS SIG 42 55 52 SERIAL DATA BUS + SERIAL DATA BUS - TCC/CRUISE CONTROL RELEASE SIG ACCELERATOR PEDAL POSITION (APP) SENSOR (ATTACHED TO TOP OF ACCELERATOR PEDAL) AUTOMATIC TRANSMISSION BLK WIRE BLK/WHT WIRE BRAKE PEDAL POSITION SENSOR (ATTACHED TO TOP OF BRAKE PEDAL ASSEMBLY) BRN WIRE CCP/RLY COILS FUSE COMPUTER COMPUTER DATA LINES DATA LINES SYSTEM SYSTEM COMPUTER DATA LINES SYSTEM CRUISE CONTROL SWITCH CRUISE IND CRUISE SW SIG 21 22 SERIAL DATA GMLAN SERIAL DATA GMLAN DISPLAY DISTANCE SENSING CRUISE CONTROL MODULE (BEHIND FRONT FASCIA, NEAR HOOD LATCH) DK BLU WIRE DK GRN WIRE DRIVER INFORMATION CENTER (DIC) ECM/TCM IGN FUSE ENGINE CONTROL MODULE (ECM) (FRONT OF ENGINE, ON RIGHT VALVE COVER) GMLAN SERIAL DATA GMLAN SERIAL WAKE UP GMLAN SERIAL DATA + GMLAN SERIAL DATA - GROUND GRY WIRE HEAD UP DISPLAY (HUD) (IF EQUIPED) HOT AT ALL TIMES HOT W/ RUN/CRANK RELAY ENERGIZED IGNITION INSTRUMENT PANEL CLUSTER (IPC) INSTRUMENT PANEL MODULE (IPM) (RIGHT SIDE OF DASH, BEHIND GLOVE BOX) LOGIC LT BLU WIRE PNK WIRE POWER DISTRIBUTION SYSTEM PPL PPL ACCY SUPPLY PPL PPL SOUND SYSTEMS RED WIRE RED/WHT WIRE TAN WIRE TAN/BLK WIRE TCC/CRS CNTL THROTTLE BODY ASSEMBLY (TOP FRONT OF ENGINE) TRANSMISSION CONTROL MODULE (TCM) TURN SIGNAL/MULTI-FUNCTION SWITCH UNDERHOOD FUSE BLOCK (RIGHT FRONT SIDE OF ENGINE COMPT) WHT WIRE WHT/BLK WIRE YEL WIRE

1 2 3 4 5 6 IGNITION 1 VOLTAGE 2500 2501 COMPUTER DATA LINES SYSTEM 3 27 GND 5 V REF LO REF SENS SIG 4.6L 53 33 SERIAL DATA BUS + SERIAL DATA BUS - ACCELERATOR PEDAL POSITION (APP) SENSOR (ATTACHED TO TOP OF ACCELERATOR PEDAL) AUTOMATIC TRANSMISSION BLK WIRE BLK/WHT WIRE BRAKE PEDAL POSITION SENSOR (ATTACHED TO TOP OF BRAKE PEDAL ASSEMBLY) BRN WIRE CCP/RLY COILS FUSE COMPUTER DATA LINES SYSTEM CRUISE CONTROL SWITCH CRUISE IND CRUISE SW SIG 21 22 SERIAL DATA GMLAN SERIAL DATA GMLAN DISPLAY DISTANCE SENSING CRUISE CONTROL MODULE (BEHIND FRONT FASCIA, NEAR HOOD LATCH) DK BLU WIRE DK GRN WIRE DRIVER INFORMATION CENTER (DIC) ECM/TCM IGN FUSE GMLAN SERIAL DATA GMLAN SERIAL WAKE UP GMLAN SERIAL DATA + GMLAN SERIAL DATA - GROUND GRY WIRE HEAD UP DISPLAY (HUD) (IF EQUIPED) HOT AT ALL TIMES HOT W/ RUN/CRANK RELAY ENERGIZED IGNITION INSTRUMENT PANEL CLUSTER (IPC) INSTRUMENT PANEL MODULE (IPM) (RIGHT SIDE OF DASH, BEHIND GLOVE BOX) LOGIC LT BLU WIRE PNK WIRE POWER DISTRIBUTION SYSTEM PPL PPL ACCY SUPPLY PPL PPL SOUND SYSTEMS RED WIRE RED/WHT WIRE TAN WIRE TAN/BLK WIRE TCC/CRS CNTL TCC/CRUISE CNTL REL SIG THROTTLE BODY ASSEMBLY (TOP FRONT OF ENGINE) TRANSMISSION CONTROL MODULE (TCM) TURN SIGNAL/MULTI-FUNCTION SWITCH UNDERHOOD FUSE BLOCK (RIGHT FRONT SIDE OF ENGINE COMPT) WHT WIRE WHT/BLK WIRE YEL WIRE

1 2 3 4 5 6 IGNITION 1 VOLTAGE 2500 2501 COMPUTER DATA LINES SYSTEM 3 27 GND 5 V REF LO REF SENS SIG 4.6L 53 33 SERIAL DATA BUS + SERIAL DATA BUS - ACCELERATOR PEDAL POSITION (APP) SENSOR (ATTACHED TO TOP OF ACCELERATOR PEDAL) AUTOMATIC TRANSMISSION BLK WIRE BLK/WHT WIRE BRAKE PEDAL POSITION SENSOR (ATTACHED TO TOP OF BRAKE PEDAL ASSEMBLY) BRN WIRE CCP/RLY COILS FUSE COMPUTER DATA LINES SYSTEM CRUISE CONTROL SWITCH CRUISE IND CRUISE SW SIG 21 22 SERIAL DATA GMLAN SERIAL DATA GMLAN DISPLAY DISTANCE SENSING CRUISE CONTROL MODULE (BEHIND FRONT FASCIA, NEAR HOOD LATCH) DK BLU WIRE DK GRN WIRE DRIVER INFORMATION CENTER (DIC) ECM/TCM IGN FUSE GMLAN SERIAL DATA GMLAN SERIAL WAKE UP GMLAN SERIAL DATA + GMLAN SERIAL DATA - GROUND GRY WIRE HEAD UP DISPLAY (HUD) (IF EQUIPED) HOT AT ALL TIMES HOT W/ RUN/CRANK RELAY ENERGIZED IGNITION INSTRUMENT PANEL CLUSTER (IPC) INSTRUMENT PANEL MODULE (IPM) (RIGHT SIDE OF DASH, BEHIND GLOVE BOX) LOGIC LT BLU WIRE PNK WIRE POWER DISTRIBUTION SYSTEM PPL PPL ACCY SUPPLY PPL PPL SOUND SYSTEMS RED WIRE RED/WHT WIRE TAN WIRE TAN/BLK WIRE TCC/CRS CNTL TCC/CRUISE CNTL REL SIG THROTTLE BODY ASSEMBLY (TOP FRONT OF ENGINE) TRANSMISSION CONTROL MODULE (TCM) TURN SIGNAL/MULTI-FUNCTION SWITCH UNDERHOOD FUSE BLOCK (RIGHT FRONT SIDE OF ENGINE COMPT) WHT WIRE WHT/BLK WIRE YEL WIRE

AMP FUSE (UNDER LEFT SIDE OF REAR SEAT) AUDIO AMPLIFIER (LEFT SIDE OF LUGGAGE COMPT) BLK WIRE CENTER I/P SPEAKER COMPUTER DATA LINES SYSTEM CRUISE CONTROL SYSTEM DK BLU WIRE DK BLU/WHT WIRE DK GRN WIRE DK GRN/WHT WIRE GRN WIRE HOT AT ALL TIMES INSTRUMENT PANEL MODULE (IPM) (RIGHT SIDE OF DASH, BEHIND GLOVE BOX) LEFT FRONT SPEAKER LEFT FRONT TWEETER SPEAKER LEFT REAR FUSE BLOCK LEFT REAR SPEAKER LEFT STEERING WHEEL CONTROL SWITCH LF LO LVL AUDIO (-) RF LO LVL AUDIO (-) CELLULAR TELEPHONE VOICE LOW REF LOW SPD GMLAN SERIAL DATA LOW SPEED GMLAN SERIAL DATA LT BLU WIRE LT BLU/BLK WIRE LT GRN WIRE LT GRN/BLK WIRE LT PPL PPL MUTE ORG/ WIRE PERSONALIZATION PPL REAR SUBWOOFER SPKR (-) REAR SUBWOOFER SPKR OUT (+) RED WIRE REMOTE RADIO CTRL HEAD ACC SPLY VOLT RIGHT FRONT RIGHT FRONT SPEAKER TWEETER SPEAKER RIGHT REAR SPEAKER RIGHT STEERING WHEEL CONTROL SWITCH SEEK DN SEEK UP SRCE STEERING COLUMN RADIO CTRL SIG SUBWOOFER SPEAKER TAN WIRE VOLUME DOWN VOLUME UP WHT WIRE YEL WIRE

BLK WIRE DATA LINK CONNECTOR (DLC) DRIVER DOOR CONTROL MODULE DRIVER DOOR LATCH DRIVER DRIVER DOOR WINDOW HANDLE SWITCH DRIVER LEFT REAR DOOR DOOR LOCK CONTROL SWITCH MODULE HEATED STEERING WHEEL HEATED STEERING WHEEL CONTROL MODULE I/P DIMMER SWITCH IGNITION COIL 1 IGNITION COIL 2 IGNITION COIL 3 IGNITION COIL 4 IGNITION COIL 5 IGNITION COIL 6 INFLATABLE RESTRAINT STEERING WHEEL MODULE COIL INSTRUMENT PANEL CLUSTER (IPC) INTERIOR REAR COMPARTMENT LID RELEASE SWITCH LEFT DRIVER REAR WINDOW WINDOW MOTOR MOTOR LEFT REAR DOOR LATCH LEFT REAR WINDOW SWITCH LEFT STEERING WHEEL CONTROL SWITCH NCA WIRE RIGHT STEERING WHEEL CONTROL SWITCH STEERING POWER WHEEL STEERING SPEED/ CONTROL POSITION MODULE SENSOR (PSCM) TURN SIGNAL/ MULTIFUNCTION SWITCH W/ ACTIVE BRAKE CONTROL WHT WIRE

15 9 GMLAN SERIAL DATA BACKLIGHT LAMP CTRL AUTOMATIC TRANSMISSION SHIFT LEVER ASSEMBLY AUXILIARY HVAC CONTROL MODULE (W/ HEATED SEAT) BLK WIRE COMPUTER DATA LINES SYSTEM DK GRN WIRE HAZARD SWITCH IGNITION MODE SWITCH INFLATABLE RESTRAINT STEERING LEFT REAR DOOR CONTROL MODULE (INSIDE LEFT REAR DOOR) LEFT REAR WINDOW SWITCH LEFT STEERING WHEEL CONTROL SWITCH NCA WIRE RIGHT REAR DOOR CONTROL MODULE (INSIDE RIGHT REAR DOOR) RIGHT REAR WINDOW SWITCH RIGHT STEERING WHEEL CONTROL SWITCH SPLICE PACK STEERING COLUMN FUSE BLOCK FUSE SUNROOF SWITCH (IF EQUIPPED) TRACTION CONTROL SWITCH WHEEL MODULE COIL (TOP OF STEERING COLUMN, BEHIND STEERING WHEEL) WHT WIRE YEL WIRE

BAT POS VOLTAGE BLK/WHT WIRE COMPUTER DATA LINES SYSTEM DK BLU WIRE DK GRN WIRE DRIVER SEAT ADJUSTER MOTOR ASSEMBLY (UNDER DRIVER DRIVER SEAT LUMBAR MOTOR ASSEMBLY DRIVER SEAT RECLINE MOTOR ASSEMBLY (UNDER DRIVER SEAT) GND (IN PASSENGER COMPT, TO LEFT OF DRIVER SEAT, ON LEFT FRAME RAIL) GRY WIRE HOT AT ALL TIMES HUD FUSE INSTRUMENT PANEL MODULE (IPM) (RIGHT SIDE OF DASH, BEHIND GLOVE BOX) LEFT REAR FUSE BLOCK (UNDER LEFT SIDE OF REAR SEAT) LOW SPD GMLAN SERIAL DATA LT BLU WIRE MEMORY SEAT MODULE (MSM) (UNDER DRIVER SEAT) ORG/ WIRE ORG/WHT WIRE PNK WIRE POWER DISTRIBUTION SYSTEM PWR SEATS CIRCUIT BREAKER RED WIRE RED/WHT WIRE SEAT CUSHION) STEERING COLUMN TELESCOPE ACTUATOR STEERING WHEEL TILT ACTUATOR (IN STEERING COLUMN) STEERING WHEEL/ COLUMN TILT/ TELESCOPE SWITCH TAN WIRE TELESCOPE IN TELESCOPE OUT TILT DOWN TILT UP UNDERHOOD FUSE BLOCK (RIGHT FRONT SIDE OF ENGINE COMPT) WHT WIRE YEL WIRE