Cadillac STS I facelift (2007-2011) (in passenger compt, behind right kick panel) Wiring diagrams

1 2 3 4 5 6 7 8 9 10 11 12 13 14 15 16 17 18 19 20 21 22 23 24 25 26 PNK WIRE ABS IND. AIR BAG IND AUDIBLE ALARM BACKLIGHTING CTRL BACKLIGHTING IND BATT POS VOLT IGN 1 VOLT BLK WIRE BLK/WHT WIRE BRAKE FLUID LEVEL SWITCH BRAKE IND BRN WIRE BRN/WHT WIRE CLASS 2 (ECM) COMPUTER DATA LINES SYSTEM CRUISE CHARGE IND IND DIC SW SIG DIC SW LOW REF DIC TOGGLE SW PASS SEAT BELT PPL IND CTRL DK BLU WIRE DK GRN WIRE DK GRN/WHT WIRE DOOR OPEN SW SIG DRIVER INFORMATION CENTER (DIC) DISPLAY ECM/TCM IGN FUSE EKM/I/P MDL FUSE ENGINE CONTROLS SYSTEM FRONT FOG LAMPS IND FUEL LEVEL GAUGE GMLAN GMLAN (EBCM) GMLAN (ECM) GMLAN (ECM) B+ GMLAN (IPM) GMLAN (RIM) GMLAN (SDM) GMLAN (TCM) GMLAN GMLAN (ECM) (ECM) GMLAN GMLAN (RIM) (IPM) GMLAN SERIAL GROUND GROUND LOW SPD GMLAN DATA HIGH BEAM IND HOT AT ALL TIMES HOT AT ALL TIMES UNDERHOOD FUSE BLOCK (RIGHT FRONT SIDE OF ENGINE COMPT) HOT W/ RUN/ CRNK RELAY ENERGIZED HUD FUSE INFLATABLE RESTRAINT I/P MODULE INDICATOR INSTRUMENT PANEL CLUSTER (IPC) IPC LANE DEPARTURE ENGINE WARNING IND COOLANT TEMPERATURE IND LEFT TURN IND LOGIC LOW SPD GMLAN DATA GROUND LOW TIRE PRESSURE IND LT GRN WIRE MALFUNCTION IND OIL LEVEL IND PARK LIGHTS IND PASS SEAT BELT IND PASSENGER DOOR CONTROL MODULE (INSIDE PASSENGER'S DOOR) PASSENGER DOOR LATCH (IN MIDDLE REAR OF LEFT REAR DOOR) PNK WIRE POWER DISTRIBUTION SYSTEM PPL PPL SENSOR SIGNAL CHK ENG IND CTRL RED WIRE RED/WHT WIRE RIGHT REAR DOOR CONTROL MODULE (INSIDE RIGHT REAR DOOR) RIGHT TURN IND SEAT BELT IND SECURITY TRACTION IND OFF IND SPEEDOMETER GAUGE TACHOMETER GAUGE TAP UP/ GMLAN DOWN ENABLE (ECM) IND TEMPERATURE GAUGE WHT WIRE YEL/BLK WIRE

1 2 3 4 5 6 7 8 9 10 11 12 13 14 15 16 17 18 19 20 21 22 23 24 25 26 PNK WIRE ABS IND. AIR BAG IND AUDIBLE ALARM BACKLIGHTING CTRL BACKLIGHTING IND BATT POS VOLT IGN 1 VOLT BLK WIRE BLK/WHT WIRE BRAKE FLUID LEVEL SWITCH BRAKE IND BRN WIRE BRN/WHT WIRE CLASS 2 (ECM) COMPUTER DATA LINES SYSTEM CRUISE CHARGE IND IND DIC SW SIG DIC SW LOW REF DIC TOGGLE SW PASS SEAT BELT PPL IND CTRL DK BLU WIRE DK GRN WIRE DK GRN/WHT WIRE DOOR OPEN SW SIG DRIVER INFORMATION CENTER (DIC) DISPLAY ECM/TCM IGN FUSE EKM/I/P MDL FUSE ENGINE CONTROLS SYSTEM FRONT FOG LAMPS IND FUEL LEVEL GAUGE GMLAN GMLAN (EBCM) GMLAN (ECM) GMLAN (IPM) GMLAN (RIM) GMLAN (SDM) GMLAN (TCM) GMLAN GMLAN (ECM) (ECM) GMLAN GMLAN (RIM) (IPM) GMLAN SERIAL GROUND GROUND LOW SPD GMLAN DATA HIGH BEAM IND HOT AT ALL TIMES HOT AT ALL TIMES UNDERHOOD FUSE BLOCK (RIGHT FRONT SIDE OF ENGINE COMPT) HOT W/ RUN/ CRNK RELAY ENERGIZED HUD FUSE INFLATABLE RESTRAINT I/P MODULE INDICATOR INSTRUMENT PANEL CLUSTER (IPC) IPC LANE DEPARTURE ENGINE WARNING IND COOLANT TEMPERATURE IND LEFT TURN IND LOGIC LOW SPD GMLAN DATA GROUND LOW TIRE PRESSURE IND LT GRN WIRE MALFUNCTION IND OIL LEVEL IND PARK LIGHTS IND PASS SEAT BELT IND PASSENGER DOOR CONTROL MODULE (INSIDE PASSENGER'S DOOR) PASSENGER DOOR LATCH (IN MIDDLE REAR OF LEFT REAR DOOR) PNK WIRE POWER DISTRIBUTION SYSTEM PPL PPL SENSOR SIGNAL CHK ENG IND CTRL RED WIRE RED/WHT WIRE RIGHT REAR DOOR CONTROL MODULE (INSIDE RIGHT REAR DOOR) RIGHT TURN IND SEAT BELT IND SECURITY TRACTION IND OFF IND TACHOMETER GAUGE SPEEDOMETER GAUGE TAP UP/ GMLAN DOWN ENABLE (ECM) IND TEMPERATURE GAUGE WHT WIRE YEL/BLK WIRE

1 2 3 4 5 6 7 8 9 10 11 12 13 14 15 16 17 18 19 20 21 22 23 24 25 26 PNK WIRE ABS IND. AIR BAG IND AUDIBLE ALARM BACKLIGHTING CTRL BACKLIGHTING IND BATT POS VOLT IGN 1 VOLT BLK WIRE BLK/WHT WIRE BRAKE FLUID LEVEL SWITCH BRAKE IND BRN WIRE BRN/WHT WIRE CLASS 2 (ECM) COMPUTER DATA LINES SYSTEM CRUISE CHARGE IND IND DIC SW SIG DIC SW LOW REF DIC TOGGLE SW PASS SEAT BELT PPL IND CTRL DK BLU WIRE DK GRN WIRE DK GRN/WHT WIRE DOOR OPEN SW SIG DRIVER INFORMATION CENTER (DIC) DISPLAY ECM/TCM IGN FUSE EKM/I/P MDL FUSE ENGINE CONTROLS SYSTEM FRONT FOG LAMPS IND FUEL LEVEL GAUGE GMLAN GMLAN (EBCM) GMLAN (ECM) GMLAN (IPM) GMLAN (RIM) GMLAN (SDM) GMLAN (TCM) GMLAN GMLAN (ECM) (ECM) GMLAN GMLAN (RIM) (IPM) GMLAN SERIAL GROUND GROUND LOW SPD GMLAN DATA HIGH BEAM IND HOT AT ALL TIMES HOT AT ALL TIMES UNDERHOOD FUSE BLOCK (RIGHT FRONT SIDE OF ENGINE COMPT) HOT W/ RUN/ CRNK RELAY ENERGIZED HUD FUSE INFLATABLE RESTRAINT I/P MODULE INDICATOR INSTRUMENT PANEL CLUSTER (IPC) IPC LANE DEPARTURE ENGINE WARNING IND COOLANT TEMPERATURE IND LEFT TURN IND LOGIC LOW SPD GMLAN DATA GROUND LOW TIRE PRESSURE IND LT GRN WIRE MALFUNCTION IND OIL LEVEL IND PARK LIGHTS IND PASS SEAT BELT IND PASSENGER DOOR CONTROL MODULE (INSIDE PASSENGER'S DOOR) PASSENGER DOOR LATCH (IN MIDDLE REAR OF LEFT REAR DOOR) PNK WIRE POWER DISTRIBUTION SYSTEM PPL PPL SENSOR SIGNAL CHK ENG IND CTRL RED WIRE RED/WHT WIRE RIGHT REAR DOOR CONTROL MODULE (INSIDE RIGHT REAR DOOR) RIGHT TURN IND SEAT BELT IND SECURITY TRACTION IND OFF IND TACHOMETER GAUGE SPEEDOMETER GAUGE TAP UP/ GMLAN DOWN ENABLE (ECM) IND TEMPERATURE GAUGE WHT WIRE YEL/BLK WIRE

15 16 SERIAL DATA - SERIAL DATA + 17 27 26 BRK APPLY SENS LOW REF BRK APPLY SENS SPLY VOLT TRACTION CTRL SW SIG 2 BLK WIRE BLK/WHT WIRE BLU WIRE BRAKE PEDAL POSITION SENSOR (ATTACHED TO TOP OF BRAKE PEDAL ASSEMBLY) BRK APPLY SENS SIG BRN WIRE BRN/WHT WIRE COMPUTER DATA LINES SYSTEM DK GRN WIRE GRN WIRE GRY WIRE GRY/BLK WIRE INSTRUMENT PANEL MODULE (IPM) LEFT FRONT WHEEL SPEED SENSOR (WSS) (BEHIND LEFT FRONT BRAKE ROTOR) LEFT REAR WHEEL SPEED SENSOR (WSS) (BEHIND LEFT REAR BRAKE ROTOR) LT BLU WIRE LT GRN/BLK WIRE ORG/ WIRE PARK BRAKE SWITCH PARK BRAKE SWITCH (AT BASE OF BRAKE PEDAL) RIGHT FRONT WHEEL SPEED SENSOR (WSS) (BEHIND RIGHT FRONT BRAKE ROTOR) RIGHT REAR WHEEL SPEED SENSOR (WSS) (BEHIND RIGHT REAR BRAKE ROTOR) TAN WIRE TAN/BLK WIRE TAN/WHT WIRE TRACTION CONTROL SWITCH (TCS) WHT WIRE YAW RATE, LATERAL ACCELERATION SENSOR (UNDER THE FRONT PASSENGER SEAT) YEL WIRE

"C" PILLAR) 1-17 (NOT USED) 1-32 (NOT USED) 18 19 20 21-56 SERIAL DATA WAKEUP IGN 1 BATT POSITIVE VOLT PNK WIRE 3.6L 33 34-46 HI SPD GMLAN SERIAL DATA (-) (NOT USED) 42 55 SERIAL DATA BUS (+) SERIAL DATA BUS (-) 47 48-50 CAN BUS LOW SERIAL DATA (NOT USED) ABS FUSE ABS MTR FUSE BLK WIRE BRAKE PRESSURE MODULATOR VALVE (BPMV) BRK VAC PUMP RELAY BRN WIRE BRN/WHT WIRE CAN BUS HIGH SERIAL DATA CAN BUS LOW SERIAL DATA COMPUTER DATA LINES SYSTEM DK GRN WIRE ELECTRONIC BRAKE CONTROL MODULE (EBCM) (RIGHT FRONT CORNER OF ENGINE COMPT) ELECTRONIC SUSPENSION CONTROL (ESC) MODULE (BELOW RIGHT ENGINE CONTROL MODULE (ECM) (FRONT OF ENGINE, ON RIGHT VALVE COVER) GRN WIRE GRY WIRE HI SPD GMLAN SERIAL DATA (+) HI SPD GMLAN SERIAL DATA (+) BATT POSITIVE VOLT HOT AT ALL TIMES HOT W/ PWR/TRN RELAY ENERGIZED BRK VAC PUMP FUSE INSTRUMENT PANEL MODULE (IPM) LO SPD GMLAN SERIAL DATA LT BLU WIRE LT GRN/BLK WIRE LT GRN/WHT WIRE NCA WIRE ORG/ WIRE PNK 9 10 WIRE RED/BLK WIRE RED/WHT WIRE RF WHEEL SPD SENS LOW REF RR WHEEL SPD SENS SIG LR WHEEL SPD SENS SIG TAN WIRE TAN/BLK WIRE TAN/WHT WIRE TRACTION CONTROL IND TRACTION CONTROL SWITCH (TCS) TRACTION CTRL SW SIG 2 UNDERHOOD FUSE BLOCK (RIGHT FRONT SIDE OF ENGINE COMPT) VACUUM PUMP RLY CTRL VARIABLE EFFORT STEERING ACTUATOR (IN LEFT REAR ENGINE COMPT, ON STEERING RACK) VEHICLE STABILITY CONTROL MODULE (LEFT REAR WHEEL HUB ASSEMBLY) WHT WIRE YEL WIRE

13 56 10 12 FUEL PUMP CTRL STARTER ENABLE 15 6 LOW SPD GMLAN DATA GROUND 2 19 PNK IGN 1 VOLT TRUNK AJAR SIG WIRE 21 22 LOW SPD GMLAN LOW SPD GMLAN 33 53 55 42 HIGH SPD GMLAN- HIGH SPD GMLAN+ 4 10 BATTERY POSITIVE VOLT GMLAN SERIAL DATA 4 5 15 16 HIGH SPD GMLAN- HIGH SPD GMLAN+ HIGH SPD GMLAN- HIGH SPD GMLAN+ 4 8 GROUND GROUND 5060 5060 COMPUTER DATA LINES SYSTEM 7 9 LOW SPD GMLAN DATA GROUND 9 14 HOOD OPEN SW SIG HOOD CLOSED SW SIG PPL BLK WIRE BLK/WHT WIRE COMPUTER DATA LINES SYSTEM DK BLU/WHT WIRE DK GRN WIRE DK GRN/WHT WIRE DOOR OPEN SW SIG DRIVER DOOR CONTROL MODULE (INSIDE DRIVER DOOR) DRIVER DOOR LATCH (IN MIDDLE REAR OF DRIVER DOOR) ENGINE CONTROLS SYSTEM GROUND HOOD AJAR SWITCH (ON RIGHT FRONT STRUT TOWER) HORN CTRL HORNS SYSTEM HOT AT ALL TIMES HOT IN RUN OR CRANK INSTRUMENT PANEL CLUSTER (IPC) INSTRUMENT PANEL MODULE (IPM) (RIGHT SIDE OF DASH, BEHIND GLOVE BOX) J/C LEFT HEADLAMP ASSEMBLY LEFT REAR DOOR CONTROL MODULE (LRDM) (INSIDE LEFT REAR DOOR) LEFT REAR DOOR LATCH (IN MIDDLE REAR OF PASSENGER DOOR) LOGIC GMLAN SERIAL DATA LOW SPD GMLAN DATA LT GRN WIRE ORG/BLK WIRE PARK LAMP CTRL PASSENGER DOOR CONTROL MODULE (INSIDE PASSENGER'S DOOR) PASSENGER DOOR LATCH (IN MIDDLE REAR OF LEFT REAR DOOR) PNK WIRE PPL REAR COMPARTMENT LID LATCH (CENTER REAR OF REAR COMPT LID) REAR INTEGRATION MODULE (RIM) (IN LEFT SIDE OF REAR COMPT, UNDER REAR SHELF) RED/BLK WIRE REMOTE CONTROL DOOR LOCK RECEIVER (RCDLR) (UNDER REAR SPEAKER SHELF) RIGHT REAR DOOR CONTROL MODULE (RRDM) (INSIDE RIGHT REAR DOOR) RIGHT REAR DOOR LATCH (IN MIDDLE REAR OF RIGHT REAR DOOR) RIGHT REAR FUSE BLOCK (UNDER RIGHT SIDE OF REAR SEAT) RIM FUSE RIM/RPA/ ISRVM/CLM FUSE SECURITY IND STARTING/ CHARGING SYSTEM TAN WIRE TAN/BLK WIRE TRUNK DIODE WHT WIRE YEL WIRE YEL/BLK WIRE

28 CM 29 PNK WIRE 5 6 7 8 PPL AUXILIARY MODE ACTUATOR (INSIDE CENTER CONSOLE, ON RIGHT REAR SIDE) BATT POSITIVE VOLT LOW REF GND BLK WIRE BLK/WHT WIRE BLOWER MTR SPD CTRL BLU WIRE BLWR FUSE BRN WIRE CCP FUSE (RIGHT FRONT SIDE OF ENGINE COMPT) CCP/ RLY COILS COMPUTER DATA LINES SYSTEM DK BLU WIRE DK BLU/BLK WIRE DK GRN WIRE DK LT FRT BLWR RELAY FUSE GRN WIRE GRY WIRE GRY/BLK WIRE HOT AT ALL TIMES HOT W/ RUN/ CRNK RELAY ENERGIZED HVAC CONTROL MODULE (CENTER OF DASH, BELOW RADIO) INTERIOR LIGHTS SYSTEM 1614 2273 1236 1199 LED BACKLIGHT DIMMING CTRL LOW SPD GMLAN SERIAL DATA LT BLU WIRE LT BLU/BLK WIRE LT GRN WIRE LT GRN/BLK WIRE LT GRN/WHT WIRE LT LT LT PPL MEDIUM BLOWER MTR CTRL NCA WIRE ORG/ WIRE PNK RUN/CRANK IGN 1 VOLT WIRE PPL PPL/WHT WIRE RECIRCULATION ACTUATOR (ON HVAC MODULE, LEFT OF BLOWER MOTOR) RED WIRE RED/WHT WIRE TAN WIRE TAN/RED WIRE UNDERHOOD FUSE BLOCK WHT WIRE WHT/BLK WIRE YEL WIRE YEL/BLK WIRE YEL/GRN WIRE

1 2 BLOWER MTR SPLY VOLT BLOWER MTR FAN CTRL PPL 2 PPL/ 20 PNK WIRE 5 6 7 8 PPL AUXILIARY HVAC CONTROL MODULE (W/ REAR HEATED SEAT) BLK WIRE BLOWER MOTOR (UNDER DASH, BEHIND GLOVE BOX) BLOWER MOTOR CONTROL MODULE (BEHIND RIGHT SIDE OF INSTRUMENT PANEL) BLOWER MTR RESISTOR ASSEMBLY SPLY VOLT BLOWER MTR SPD CTRL BLU WIRE DK BLU WIRE DK BLU/BLK WIRE EVAPORATOR TEMPERATURE SENSOR (INSIDE HVAC CASE, AT EVAPORATOR CORE) GND VOLT 4 LT 3 PNK WIRE GRN WIRE GRY WIRE GRY/BLK WIRE HOT W/ RUN/ CRNK RELAY ENERGIZED HTD WASH/ AQS FUSE LEFT AIR TEMPERATURE ACTUATOR (LEFT CENTER OF DASH, ON LEFT SIDE OF HVAC MODULE) LT BLU WIRE LT BLU/BLK WIRE LT GRN WIRE LT GRN/BLK WIRE LT GRN/WHT WIRE ORG/ WIRE PPL PPL LT PPL/WHT WIRE RED WIRE RUN/CRANK IGN 1 SIDE OF ENGINE COMPT) TAN WIRE TAN/RED WIRE UNDERHOOD FUSE BLOCK (RIGHT FRONT WHT WIRE WHT/BLK WIRE YEL WIRE YEL/BLK WIRE YEL/GRN WIRE

BLK WIRE COMPUTER DATA LINES SYSTEM CONSOLE COURTESY/ READING LAMPS COURTESY LAMP CTRL COURTESY RLY CTRL COURTESY SPLY CTRL DK BLU WIRE DK BLU/WHT WIRE DK GRN WIRE FRONT OVERHEAD CONSOLE COURTESY/ READING LAMPS GMLAN SERIAL DATA GRY WIRE HOT AT ALL TIMES I/P COMPART- MENT LAMP I/P COMPARTMENT LAMP SWITCH INT LAMP RELAY INT/ LAMP FUSE LEFT I/P RIGHT I/P COURTESY COURTESY LAMP LAMP LEFT REAR DOOR COURTESY LAMP LEFT SUN- SHADE NCA WIRE ORG/ WIRE PPL REAR COMPART- MENT COURTESY LAMP REAR COMPARTMENT LID RELEASE ACTUATOR REAR INTEGRATION MODULE (RIM) (IN LEFT SIDE OF REAR COMPT, UNDER REAR SHELF) REAR OVERHEAD RIGHT REAR DOOR COURTESY LAMP RIGHT REAR FUSE BLOCK (UNDER RIGHT SIDE OF REAR SEAT) RIGHT REAR FUSE BLOCK (UNDER RIGHT SIDE OF REAR SEAT) TRUNK DIODE RIGHT SUN- SHADE SPLICE PACK WHT WIRE

13 3 RR TURN SIGN SUPPLY VOL LR TURN SIGN SUPPLY VOL 3 1 4 2 INTERIOR BACK LIGHT LAMP SIGNAL SUPPLY VOLTAGE GROUND LIGHTS SYSTEM AUTO BLK WIRE BLK/WHT WIRE BLU WIRE BRAKE PEDAL POSITION SENSOR (ATTACHED TO TOP OF BRAKE PEDAL ASSEMBLY) BRN WIRE BRN/WHT WIRE COMPUTER DATA LINES SYSTEM DK BLU WIRE DK BLU/WHT WIRE DK GRN WIRE DK GRN/WHT WIRE DK LT GMLAN SERIAL DATA GROUND DISTRIBUTION SYSTEM HAZARD SWITCH HOT AT ALL TIMES I/P MDL/ ALDL FUSE V/ CHECK FUSE INSTRUMENT PANEL CLUSTER (IPC) INSTRUMENT PANEL MODULE (IPM) (RIGHT SIDE OF DASH, BEHIND GLOVE BOX) LAMP LEFT LEFT FRONT REPEATER LAMP LEFT FRONT TURN SIGNAL LAMP LEFT LICENSE LAMP LEFT TURN SIGNAL IND LIC DIM FUSE LOGIC LT BLU WIRE LT BLU/WHT WIRE LT DK LT TRN/ LDW FUSE RIM FUSE MASTER LIGHTNING IND OFF PARK HEAD PARK LAMP RELAY PARK LAMP RLY CTRL POWER DISTRIBUTION SYSTEM REAR INTEGRATION MODULE (RIM) (IN LEFT SIDE OF REAR COMPT, UNDER REAR SHELF) RED WIRE RED/BLK WIRE RED/WHT WIRE RIGHT RIGHT FRONT REPEATER LAMP RIGHT FRONT TURN SIGNAL LAMP RIGHT LICENSE RIGHT REAR FUSE BLOCK (UNDER RIGHT SIDE OF REAR SEAT) RIGHT TURN SIGNAL IND TO UNDERHOOD FUSE BLOCK LT PARK FUSE, (DIAGRAM 2 OF 2) TURN SIGNAL/ MULTI-FUNCTION SWITCH UNDERHOOD FUSE BLOCK (RIGHT FRONT SIDE OF ENGINE COMPT) W/ GPS 1, HID W/ HID WHT WIRE YEL WIRE YEL/BLK WIRE