Cadillac STS I facelift (2007-2011) org/blk Wiring diagrams

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

3.6L, 4.6L W/O TRAILER PROVISIONS 4.4L, 4.6L 3.6L 4.4L, 4.6L W/ TRAILER PROVISIONS 4.6L 4.4L 3.6L 5514 (OR 2751) A/C CMPRSR CLUTCH RELAY CTRL A/C COMPRESSOR CLUTCH A/C COMPRESSOR CLUTCH RELAY A/C REFRIG PRESS SENS BLK WIRE COMPUTER DATA LINES SYSTEM DK BLU WIRE DK GRN WIRE DK GRN/WHT WIRE ECT SENSOR SIGNAL ENGINE COOLING FAN ENGINE COOLING FAN RESISTOR FAN 1 FUSE A/C CLUTCH FUSE FAN-2 FUSE GRN WIRE GRY WIRE HI FAN SPD RELAY HI SPD FAN RLY CTRL HOT AT ALL TIMES HOT W/ PWR/ TRN RELAY ENERGIZED LEFT ENGINE COOLING FAN (BEHIND RADIATOR) LO FAN SPD RELAY LOW REF LOW REFERENCE LOW SPD FAN RLY CTRL LT BLU WIRE MODE ACTUATOR (ON TOP LEFT SIDE OF HVAC MODULE) ORG/ WIRE ORG/BLK WIRE POST 02 SNSR FUSE RIGHT ENGINE COOLING FAN (BEHIND RADIATOR) S/P FAN RELAY SERIAL DATA BUS- TAN WIRE TAN/BLK WIRE UNDERHOOD FUSE BLOCK (RIGHT FRONT SIDE OF ENGINE COMPT) WHT WIRE YEL WIRE YEL/BLK WIRE YEL/GRN WIRE

A/C CMPRSR CLTCH RELAY A/C COMPRESSOR CLUTCH AC CLTCH FUSE BLK WIRE COMPUTER DATA LINES SYSTEM DATA BUS - DK GRN WIRE DK GRN/WHT WIRE EXCEPT 3.6L 3.6L GRY WIRE HOT AT ALL TIMES HOT W/ PWR/TRN RELAY ENERGIZED LOW REF ORG/ WIRE ORG/BLK WIRE POST 02 SNSR FUSE RLY CTRL SENS SIG TAN WIRE TAN/BLK WIRE UNDERHOOD FUSE BLOCK (RIGHT FRONT SIDE OF ENGINE COMPT) WHT WIRE

AUTOMATIC LEVEL ELEC RELAY CTRL BLK WIRE BRN WIRE COMPUTER DATA LINES SYSTEM COMPUTER DATA LINES SYSTEM 2500 1206 COMPUTER DATA LINES SYSTEM 2500 1212 DATA SIGNAL BATTERY VOLTAGE DK GRN WIRE DRIVER INFORMATION CENTER (DIC) DISPLAY EKM/I/P MDL FUSE ELC CMPRSR FUSE ELC CMPRSR RELAY ELECTRONIC SUSPENSION CONTROL (ESC) MODULE (BELOW RIGHT "C" PILLAR) GMLAN SER DATA - GMLAN SER DATA + SENSOR LOW REF RR DAMPING INCREASE GMLAN SER DATA - GMLAN SER DATA + SENSOR LOW REF SENSOR LOW REF GRN WIRE GRY WIRE HIGH SERIAL DATA LO SERIAL DATA HOT AT ALL TIMES HOT W/ RUN RELAY ENERGIZED IPC CLASS 2 LEFT FRONT SHOCK ABSORBER ACTUATOR (TOP OF LEFT FRONT STRUT TOWER) LEFT FRONT SUSPENSION POSITION SENSOR (NEAR LEFT FRONT STRUT) LEFT REAR FUSE BLOCK (UNDER LEFT SIDE OF REAR SEAT) LEFT REAR SHOCK ABSORBER ACTUATOR (TOP OF LEFT REAR STRUT TOWER) LEFT REAR SUSPENSION POSITION SENSOR (NEAR LEFT REAR STRUT) 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 LOGIC INSTRUMENT PANEL CLUSTER (IPC) LR DAMPING CTRL LR DAMPING CTRL RF RAID CTRL LF DAMPING CTRL LR POSITION SENS LT BLU/BLK WIRE LT GRN WIRE LT GRN/BLK WIRE LT GRN/WHT WIRE MRTD MDL FUSE ELC EXH FUSE NCA WIRE ORG/ WIRE ORG/BLK WIRE PPL PPL RR DAMPING DECREASE RF DAMPING CTRL LF DAMPING INCREASE GROUND PPL/WHT WIRE RED WIRE RED/BLK WIRE RED/WHT WIRE RIGHT FRONT SHOCK ABSORBER ACTUATOR (TOP OF RIGHT FRONT STRUT TOWER) RIGHT FRONT SUSPENSION POSITION SENSOR (NEAR RIGHT FRONT STRUT) RIGHT REAR SHOCK ABSORBER ACTUATOR (TOP OF RIGHT REAR STRUT TOWER) RIGHT REAR SUSPENSION POSITION SENSOR (NEAR RIGHT REAR STRUT) SENSOR LOW REF TAN WIRE TAN/BLK WIRE TAN/WHT WIRE UNDERHOOD FUSE BLOCK (RIGHT FRONT SIDE OF ENGINE COMPT) WHT WIRE WHT/BLK WIRE YEL WIRE

ANTI-THEFT SYSTEM BATT POSITIVE VOLTAGE BLK WIRE BLK/WHT WIRE BRN/WHT WIRE COMPUTER DATA LINES SYSTEM CRUISE CONTROL SWITCH SIGNAL CRUISE CONTROL SYSTEM CRUISE CONTROL SYSTEM INTERIOR LIGHTS SYSTEM DK BLU WIRE DK BLU/WHT WIRE DK GRN WIRE DK GRN/WHT WIRE EXTERIOR LIGHTS SYSTEM ANTI-THEFT SYSTEM EXTERIOR LIGHTS SYSTEM EXTERIOR LIGHTS SYSTEM EXTERIOR LIGHTS SYSTEM INTERIOR LIGHTS SYSTEM DEFOGGER SYSTEM POWER TOPS SYSTEM GRY WIRE HOOD OPEN SW SIG HOT AT ALL TIMES HOT W/ RUN/CRNK RELAY ENERGIZED J/C LOW SPD GMLAN SERIAL DATA LR STOP/TURN LMP SPLY VOLTAGE LT BLU WIRE LT BLU/WHT WIRE LT TRN/ LDW FUSE NAVIGATION SYSTEM ORG/BLK WIRE PNK WIRE REAR PARKING ASSIST CHIME SIG RED WIRE RED/BLK WIRE RED/WHT WIRE RIGHT REAR FUSE BLOCK (UNDER RIGHT SIDE OF REAR SEAT) RIM FUSE RIM/RPA/ ISRVM/CLM FUSE RR TURN SIG LMP SPLY VOLTAGE HOOD CLOSED SW SIG PPL RT TRN/ SBZA FUSE STEERING WHEEL CTRL SPLY VOLT COURTESY LAMP SPLY VOLTAGE TAN WIRE TRUNK AJAR SW SIG TRUNK, TAILGATE, FUEL DOORS SYSTEM WHT WIRE YEL WIRE YEL/BLK WIRE

5274 225 STARTING/CHARGING SYSTEM ACTR SOL CTRL EVAP CNSTR PURGE SOL CTRL CMP INTAKE BANK 1 SIG AFTER BOIL COOLANT SPLY VOLT 5 VOLT REF 2 ANTI-LOCK BRAKES SYSTEM BLK WIRE BLK/WHT WIRE BRN WIRE BRN/WHT WIRE CMP SENS INTAKE BANK 2 SIG CMP EXHAUST SENS 1 CKP SENS 1 SIG FRP SENS SIG DK BLU WIRE DK BLU/WHT WIRE DK GRN WIRE DK GRN/WHT WIRE ENGINE CONTROL MODULE (ECM) (FRONT OF ENGINE, ON RIGHT VALVE COVER) GRY WIRE IGNITION COIL 1 (ON TOP FRONT OF LEFT VALVE COVER) IGNITION COIL 2 (ON TOP FRONT OF RIGHT VALVE COVER) IGNITION COIL 3 (ON TOP CENTER OF LEFT VALVE COVER) IGNITION COIL 4 (ON TOP CENTER OF RIGHT VALVE COVER) IGNITION COIL 5 (ON TOP REAR OF LEFT VALVE COVER) IGNITION COIL 6 (ON TOP REAR OF RIGHT VALVE COVER) LT BLU WIRE LT BLU/WHT WIRE LT GRN WIRE LT GRN/WHT WIRE NCA WIRE ORG/ WIRE ORG/BLK WIRE ORG/WHT WIRE PLUG PLUG SPARK PNK/BLK WIRE PPL PPL 28 29 PPL CMP EXHAUST SENS 2 GENERATOR TURN ON SIG PPL/WHT WIRE SOUND SYSTEMS SPARK SPARK PLUG STARTING/CHARGING SYSTEM TAN WIRE VACUUM PUMP RLY CTRL WHT/BLK WIRE YEL WIRE

20 21 22 PPL BANK 1 SENS 1 BANK 1 SENSOR 1 BANK 2 SENS 1 BANK 2 SENSOR 1 BLK WIRE BLK/WHT WIRE BRN WIRE BRN/WHT WIRE CANISTER PURGE SOLENOID VALVE CONNECTOR) DK BLU WIRE DK GRN WIRE DK GRN/WHT WIRE ECT SENS SIG ENGINE CONTROL MODULE ENGINE COOLANT TEMPERATURE (ECT) SENSOR (IN CENTER OF LEFT CYLINDER HEAD) FUEL INJ 1 CTRL FUEL INJ 4 CTRL GRY WIRE IC 2 CTRL IC 4 CTRL IC 6 CTRL IGN 1 VOLT KNOCK SENS 1 SIG KNOCK SENS 2 SIG KNOCK SENSOR (KS) BANK 1 (ON RIGHT SIDE OF ENGINE) KNOCK SENSOR (KS) BANK 2 (ON LEFT SIDE OF ENGINE) LOW REF LT BLU WIRE LT BLU/WHT WIRE LT GRN WIRE NCA WIRE OIL PRESS SENS SIG ORG/ WIRE ORG/BLK WIRE ORG/WHT WIRE PNK/BLK WIRE PPL PPL 28 29 PPL/WHT WIRE TAN WIRE TAN/BLK WIRE TAN/WHT WIRE TP SENS 1 SIG TP SENS 2 SIG WHT/BLK WIRE YEL 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

2501 6120 2761 COMPUTER DATA LINES SYSTEM 335 3223 COOLING FANS SYSTEM 5 VOLT REF 1 5 VOLT REF 5 VOLT REF 1 BANK 2 SENS 2 BAROMETRIC PRESSURE (BARO) SENSOR (TOP RIGHT SIDE ENGINE) BLK WIRE BLK/WHT WIRE BRN WIRE CNSTR VENT FUSE COMPUTER DATA LINES SYSTEM DK BLU WIRE DK GRN WIRE DK GRN/WHT WIRE ENGINE COOLANT TEMPERATURE (ECT) SENSOR (REAR OF RIGHT CYLINDER HEAD) EVAP CNSTR PURGE SOL CTRL LO SPD COOLING FAN RLY CTRL FUEL PUMP FUEL PUMP RELAY GENERATOR FIELD DUTY CYCLE SIG GENERATOR TURN ON SIG GROUND GRY WIRE GRY/BLK WIRE HI SPD GMLAN BUS + HI SPD GMLAN SERIAL DATA BUS - IAT 2 LOW REF LOW REF HOT AT ALL TIMES HOT AT ALL TIMES FUEL PUMP FUSE J/C LEFT FUEL TANK SENSOR LOW REF BARO SENS LOW REF LOW REF LT BLU WIRE LT GRN WIRE OIL LEVEL SW SIG ORG/ WIRE ORG/BLK WIRE ORG/WHT WIRE PARK/NEUTRAL SIG PNK WIRE PPL PPL/WHT WIRE RED/WHT WIRE RIGHT REAR FUSE BLOCK (UNDER STARTING/ CHARGING SYSTEM STARTING/CHARGING SYSTEM TAN WIRE TAN/BLK WIRE TAN/WHT WIRE TRANSMISSIONS SYSTEM VACUUM BYPASS VLV CTRL HTR LO CTRL (BANK 2 SENS 1) COOLANT PUMP RLY CTRL WHT/BLK WIRE YEL WIRE YEL/BLK WIRE

BLK PNK/ WIRE BLK WIRE BLK/WHT WIRE BRN WIRE DK BLU/WHT WIRE DK GRN WIRE EVEN COILS FUSE FROM PWR/TRN RELAY (DIAGRAM 3 OF 6) GRY/WHT WIRE LT BLU WIRE LT BLU/BLK WIRE LT GRN WIRE LT GRN/BLK WIRE MODULE 1 CONNECTOR) NCA WIRE ODD COILS FUSE ORG/BLK WIRE PLUG PNK 7 8 WIRE PNK WIRE PNK/ BLK WIRE PNK/BLK WIRE PPL PPL 11 12 13 14 15 16 PPL 3 4 5 6 PPL 5 6 PPL PNK WIRE PPL/WHT WIRE SPARK TAN WIRE TAN/WHT WIRE UNDERHOOD FUSE BLOCK (RIGHT FRONT SIDE OF ENGINE COMPT) YEL/BLK WIRE