Cadillac STS I facelift (2007-2011) hot w/ run/ crnk relay energized 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

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

ABS MTR FUSE ANTI-LOCK BRAKES SYSTEM BLK WIRE COMPUTER DATA LINES SYSTEM DK GRN WIRE DRIVER INFORMATION CENTER (DIC) DISPLAY INSTRUMENT PANEL CLUSTER (IPC) ECM/TCM/IGN FUSE GRY WIRE HIGH LOW GND SERIAL SERIAL DATA DATA HOT AT ALL TIMES HOT W/ RUN/ CRNK RELAY ENERGIZED ING 1 LOGIC LT GRN WIRE PNK IGN 1 VOLT GMLAN SERIAL DATA WIRE PNK WIRE RED WIRE RED/BLK WIRE TAN WIRE TAN/BLK WIRE UNDERHOOD FUSE BLOCK (RIGHT FRONT SIDE OF ENGINE COMPT) VARIABLE EFFORT STEERING ACTUATOR (IN LEFT REAR ENGINE COMPT, ON STEERING RACK) WHT WIRE

459 473 335 1272 1274 1164 6289 AIR CONDITIONING SYSTEM COOLING FANS SYSTEM 5514 447 492 2709 1161 STARTING/CHARGING SYSTEM 5728 2500 COMPUTER DATA LINES SYSTEM A/C REFRIGERANT PRESSURE SENSOR ACCELERATOR PEDAL POSITION (APP) SENSOR (ATTACHED TO TOP OF ACCELERATOR PEDAL) BANK 1 SENS 2 BANK 1 SENSOR 2 BANK 2 SENSOR 2 BLK WIRE BLK/WHT WIRE BRN WIRE BRN/WHT WIRE COMPUTER DATA LINES SYSTEM DK BLU WIRE DK GRN WIRE DK GRN/WHT WIRE ECM/TCM IGN FUSE ECM/TCM SERIAL DATA WAKE UP HI SPD GMLAN SERIAL DATA BUS (+) ENGINE CONTROL MODULE (ECM) (FRONT OF ENGINE, ON RIGHT VALVE COVER) EVAP CANISTER VENT SOL CTRL GRN DK WIRE GRY WIRE HOT W/ RUN/ CRNK RELAY ENERGIZED IGN 1 VOLT IGN LK CYL CTRL ACTR SIG INSTRUMENT PANEL CLUSTER (IPC) LOGIC LO SPD GMLAN SERIAL DATA LOW REF 5 VOLT REF 3 FUEL LVL SENS SIG LT BLU WIRE MAIN RLY CTRL MALFUNCTION IND NCA WIRE ORG/BLK WIRE ORG/WHT WIRE PNK IGN 1 VOLT GMLAN SERIAL DATA BUS (-) BATT POSITIVE VOLT WIRE PNK WIRE PNK/BLK WIRE PPL PPL (BANK 1 SENS 2) A/C REFRIG PRESS SENS SIG PPL (BANK 2 SENS 2) 52 53 54 55 56 57 58 STOP LAMP SW SIG RED/WHT WIRE RUN/ CRANK IGN 1 VOLT IGN SENS SIG SENSOR 2 CONNECTOR) TAN WIRE TAN/BLK WIRE TAN/WHT WIRE TRANSMISSIONS SYSTEM UNDERHOOD FUSE BLOCK (RIGHT FRONT SIDE OF ENGINE COMPT) WHT WIRE WHT/BLK BRN WIRE WHT/BLK WIRE YEL WIRE YEL/BLK WIRE

5-VOLT REF 1 A/C FAN HI FAN S/P SPD SPD CMPRSR CLTCH RELAY RELAY RELAY RELAY AIR CONDITIONING SYSTEM APP SENSOR 1 SIG APP SENSOR 2 SIG BATTERY POSITIVE VOLT BRN WIRE BRN/WHT WIRE CLUTCH RLY CTRL A/C COMPRESSOR COOLING FANS SYSTEM DK BLU WIRE DK GRN WIRE DK GRN/WHT WIRE ECM 1 FUSE SNSR FUSE ECM/TCM BATT FUSE ECM/TCM IGN FUSE EVAP CANISTER VENT SOL CTRL FUEL PUMP RELAY CTRL FUEL TANK PRESS SENS SIG GRY WIRE GRY/WHT WIRE HI SPD COOLING FAN RLY CTRL HOT AT ALL TIMES HOT W/ RUN/ CRNK RELAY ENERGIZED INLET AIR PRESS SENS SIG INSIDE REARVIEW MIRROR (ISRVM) RADIO LO FAN LOW REF LT BLU WIRE MIL CTRL PNK WIRE PNK/BLK WIRE POWERTRAIN RLY CTRL PPL PPL 5 6 PPL/WHT WIRE PWR/TRN RELAY RED/WHT WIRE RUN/CRANK IGN 1 VOLT DATA WAKE UP ECM/TCM SERIAL SECONDARY FUEL LVL SENS SIG SIDE OF ENGINE COMPT) SNSR FUSE STARTER RLY COIL CTRL STARTING/ CHARGING SYSTEM STOP LAMP SW SIG TAN WIRE TAN/WHT WIRE TO EVEN COILS FUSE (DIAGRAM 4 OF 6) TRANSMISSIONS SYSTEM UNDERHOOD FUSE BLOCK (RIGHT FRONT VEHICLE SPEED SIG W/ INFOTAINMENT SYSTEM 012, 014, 015 W/ INTELLIGENT HIGH BEAM CONTROL WHT WIRE WHT/BLK WIRE YEL WIRE YEL/BLK WIRE

5-VOLT REF 1 A/C COMPRESSOR CTRL AIR CONDITIONING SYSTEM APP SENSOR 1 SIG APP SENSOR 2 SIG BATTERY POSITIVE VOLT BLK WIRE BRN WIRE BRN/WHT WIRE COMPUTER DATA LINES SYSTEM COOLING FANS SYSTEM DK BLU WIRE DK BLU/WHT WIRE DK GRN WIRE DK GRN/WHT WIRE ECM 1 FUSE SNSR FUSE ECM/ TCM BATT FUSE ECM/TCM IGN FUSE ECM/TCM SERIAL DATA EVAP CANISTER CTRL FTP SENSOR SIG FUEL LEVEL SENSOR SIG FUEL PUMP RELAY CTRL GRY WIRE GRY/BLK WIRE GRY/WHT WIRE HIGH SPEED RELAY CTRL HOT AT ALL TIMES HOT W/ RUN/ CRNK RELAY ENERGIZED LEFT FUEL TANK SENSOR LO FAN HI FAN FAN A/C SPD SPD S/P CMPRSR RELAY RELAY RELAY CLTCH RELAY LOW REF LT BLU WIRE MIL CTRL OF ENGINE COMPT) PNK WIRE PNK/BLK WIRE POWERTRAIN RELAY CTRL PPL PPL 3 4 PPL/WHT WIRE PWR/TRN RELAY RED WIRE RED/WHT WIRE RUN/CRANK IGN 1 VOLT SECONDARY SENSOR SIG SNSR FUSE STARTER RLY COIL CTRL STARTING/CHARGING SYSTEM STOP LAMP SWITCH SIG TAN WIRE TAN/BLK WIRE TAN/WHT WIRE TO EVEN COILS FUSE (DIAGRAM 4 OF 6) TRANSMISSIONS SYSTEM UNDERHOOD FUSE BLOCK (RIGHT FRONT SIDE VEHICLE SPEED SIG WHT WIRE WHT/BLK WIRE YEL WIRE YEL/BLK WIRE