Cadillac STS I (2004-2007) (near left front strut tower, at bottom of inside fender well) Wiring diagrams

1 5 12 SUPPLY VOLTAGE STOP LAMP SW SIGN HAZARD SW SIGN 2 4 5 8 6 BATTERY GROUND LR STOP/TURN SUPPLY VOL GROUND RR STOP/TURN SUPPLY VOL 3 13 LR TURN SIGN SUPPLY VOL RR TURN SIGN SUPPLY VOL 4 1 2 SUPPLY VOLTAGE SIGNAL GROUND AUTO HEAD PARK BACK LIGHT LAMP BLK WIRE BLK/WHT WIRE BLU WIRE BRN/WHT WIRE COMPUTER DATA LINES SYSTEM DK BLU WIRE DK BLU/WHT WIRE DK GRN WIRE DK GRN/WHT WIRE HAZARD SWITCH HOT AT ALL TIMES INSTRUMENT PANEL CLUSTER (IPC) INSTRUMENT PANEL MODULE (RIGHT SIDE OF DASH BEHIND GLOVE BOX) IPM/ ALDL FUSE VOLT CHECK FUSE LEFT FRONT TURN SIGNAL/ FOG LAMP ASSEMBLY LEFT FRONT TURN SIGNAL LAMP LEFT LICENSE LAMP RIGHT LICENSE LAMP LEFT REPEATER LAMP LEFT TURN SIGNAL FUSE RIM FUSE LEFT TURN SIGNAL IND LIC/IPM FUSE LOGIC LOW SPEED GMLAN SERIAL DATA LT BLU WIRE LT BLU/WHT WIRE LT DK LT LT OFF PARK LAMP RELAY PARK LAMP RLY CTRL REAR INTEGRATION MODULE (IN LEFT SIDE OF REAR COMPT, UNDER REAR SHELF) RED WIRE RED/BLK WIRE RED/WHT WIRE RIGHT FRONT TURN SIGNAL/ FOG LAMP ASSEMBLY RIGHT FRONT TURN SIGNAL LAMP RIGHT REAR FUSE BLOCK (UNDER RIGHT SIDE OF REAR SEAT) RIGHT REPEATER LAMP RIGHT TURN SIGNAL IND SPLICE PACK TILT/ LK LMP/ CLM RELAY COILS FUSE TO UNDERHOOD FUSE BLOCK (LT PARK FUSE, TURN SIGNAL/ MULTIFUNCTION SWITCH UNDERHOOD FUSE BLOCK (RIGHT FRONT SIDE OF ENG COMPT) WHT WIRE YEL WIRE YEL/BLK WIRE

A/C COMPRESSOR CLUTCH A/T AFTER BOIL HEATER PUMP AUTOMATIC HEADLAMP DIMMING RELAY AUTOMATIC TRANSMISSION BATTERY BLK WIRE BRAKE FLUID LEVEL SWITCH RIGHT HEATED WASHER NOZZLE CAMSHAFT POSITION (CMP) ACTUATOR SOLENOID EXHAUST BANK 1 CAMSHAFT POSITION (CMP) ACTUATOR SOLENOID EXHAUST BANK 2 CAMSHAFT POSITION (CMP) ACTUATOR SOLENOID INTAKE BANK 1 CAMSHAFT POSITION (CMP) ACTUATOR SOLENOID INTAKE BANK 2 COOLANT LEVEL SWITCH ELECTRONIC BRAKE CONTROL MODULE (EBCM) ENGINE CONTROL MODULE (ECM) ENGINE OIL LEVEL SWITCH INFLATABLE RESTRAINT SENSING, DIAGNOSTIC MODULE (SDM) INSTRUMENT PANEL MODULE (IPM) LEFT HEATED WASHER NOZZLE WINDSHIELD WIPER/ WASHER MODULE REAR WINDOW DEFOGGER REAR WINDOW KEYLESS ENTRY ANTENNA TRANSMISSION CONTROL MODULE (TCM) W/ HID HEAD- LAMPS WHT WIRE WINDSHIELD HEADLAMP WASHER MOTOR ASSEMBLY

1 2 3 BATTERY BATTERY GROUND 14 20 PARK LMP ON SW SIG PARK BRAKE SW SIG 2 10 PNK PNK WIRE 2 11 3 SERIAL DATA LOW REF DRIVER SIG PNK WIRE 2 12 DOOR AJAR SW SIGNAL LF DOOR SW SIG 21 22 25 13 SERIAL DATA SERIAL DATA RT TURN SW SIG LT TURN SW SIG AUDIBLE ALARM AUDIO AMPLIFIER (IN REAR COMPARTMENT, ON LEFT REAR QUARTER PANEL BRACKET AUTO HDLP BATTERY BLK WIRE BLK/WHT WIRE BRN/WHT WIRE CLASS 2 SERIAL DATA COAX COMPUTER DATA LINES SYSTEM DK BLU/WHT WIRE DK GRN WIRE DOOR AJAR SIGNAL DOOR LOCKS SYSTEM DRIVER DOOR LATCH ASSEMBLY DRIVER DOOR MODULE (INSIDE DRIVER DOOR) DRIVER SEAT BELT SWITCH (IN LEFT FRONT SEAT BELT BUCKLE) GND DOOR OPEN SIGNAL GROUND GRY WIRE GRY/BLK WIRE HOT AT ALL TIMES HOT WITH HEADLAMP SWITCH IN PARK, HEAD INFLATABLE RESTRAINT SENSING, DIAGNOSTIC MODULE (UNDER REAR OF CENTER CONSOLE) INSTRUMENT PANEL CLUSTER INSTRUMENT PANEL MODULE (RIGHT SIDE OF DASH BEHIND GLOVE BOX) IPM/ALDL FUSE KEYLESS ENTRY/ TIRE PRESSURE ANTENNA SIGNAL LEFT LEFT TURN INDICATOR LOGIC LIC/DIMMING FUSE LIGHTS ON INDICATOR LOW TIRE PRESSURE INDICATOR LT BLU WIRE LT BLU/WHT WIRE NCA WIRE OFF PARK BRAKE SWITCH (AT BASE OF BRAKE PEDAL) PNK WIRE REAR WINDOW KEYLESS ENTRY ANTENNA RED/WHT WIRE REMOTE CONTROL DOOR LOCK RECEIVER (UNDER REAR SPEAKER SHELF) RIGHT RIGHT TURN INDICATOR SERIAL DATA TAN WIRE TAN/WHT WIRE TURN SIGNAL/MULTI-FUNCTION SWITCH UNDERHOOD FUSE BLOCK (RIGHT FRONT SIDE OF ENGINE COMPT) VOLT CHECK FUSE WHT WIRE YEL WIRE

11 20 24 WIPER SW SIGNAL 2 WIPER SW ON SIGNAL HDLP RELAY CONTROL ACCESSORY RELAY BLK WIRE DELAY DK BLU WIRE GRY WIRE HI LO HI LO INT HOT AT ALL TIMES HOT IN ACC OR RUN HOT IN RUN OR START IGN 1 RELAY INSTRUMENT PANEL MODULE (RIGHT SIDE OF DASH BEHIND GLOVE BOX) LEFT HEATED WASHER NOZZLE LT GRN WIRE MIST MIST OFF OFF OFF INT ORG/ WIRE PNK WIRE PPL RIGHT HEATED WASHER NOZZLE TAN WIRE TAN/WHT WIRE UNDERHOOD FUSE BLOCK (RIGHT FRONT OF ENGINE COMPT) WASH WASH NOZ/ACC FUSE WASHER FLUID LEVEL SIG WHT WIRE WINDSHIELD WIPER/ WASHER MODULE (LEFT REAR OF ENGINE COMPT, NEAR WINDSHIELD) WINDSHIELD WIPER/WASHER SWITCH WIPER SWITCH WPR MOD FUSE WPR SW/ VICS FUSE YEL WIRE

4 3 2 1 ACC VLTG GROUND SNS SIG 1 SNS SIG 2 BLK WIRE HDLP WASH RELAY JUMPER HEADLAMP WASHER CIRCUIT BREAKER HEADLAMP WASHER FLUID PUMP HOT AT ALL TIMES LT GRN WIRE ORG/ WIRE OUTSIDE MOISTURE SENSOR (BEHIND INSIDE REARVIEW MIRROR) PPL RAIN SENSOR/ HDLP WASH FUSE RED WIRE RED/BLK WIRE TAN WIRE TAN/WHT WIRE UNDERHOOD FUSE BLOCK (RIGHT FRONT OF ENGINE COMPT) WHT WIRE WINDSHIELD HEADLAMP WASHER MOTOR ASSEMBLY WINDSHIELD WASHER FLUID LEVEL SWITCH WINDSHIELD WASHER FLUID PUMP YEL WIRE