Cadillac STS I (2004-2007) red Wiring diagrams

1 2 3 LOW SPD GMLAN SERIAL DATA BAT POS VOLTAGE 1 2 5 LFT MIR MTR DN CTRL LFT MIR MTR UP/RT CTRL LFT MIR MTR LFT CTRL BLK WIRE BLK/WHT WIRE BLU WIRE COMPUTER DATA LINES SYSTEM DK GRN WIRE DK GRN/BLK WIRE DRIVER DOOR MODULE (DDM) (INSIDE DRIVER DOOR) DRIVER DR MOD FUSE DRIVER OUTSIDE REARVIEW MIRROR DRVR VERT POS SENS SIG LOW REF DRVR HORIZ POS SENS SIG FEED GROUND HORIZ MOTOR HORIZ POS SENSOR HOT AT ALL TIMES LEFT HORIZ HORIZ POS SENS LEFT LOGIC LEFT REAR FUSE BLOCK (UNDER LEFT SIDE OF REAR SEAT) LT BLU/BLK WIRE MIRROR SWITCHES DRIVER DOOR SWITCH ASSEMBLY (DDSA) PPL/BLK WIRE RED WIRE RED/BLK WIRE RED/WHT WIRE RIGHT RIGHT HORIZ RTN SEL LEFT SEL RIGHT VERT DOWN VERT MOTOR VERT POS SENS VERT POS SENSOR VERT UP W/ INFOTAINMENT SYSTEM 012, 014, 015 WHT WIRE YEL WIRE

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

12 24 21 192 1485 5060 FOG LMP SW SIG HI BEAM SW SIG LOW SPD GMLAN SER DATA 6 3 1970 1317 LOW BEAM RLY CTRL FOG LMP RLY CTRL AIR CONDITIONING SYSTEM AUTO AUTO PPL AUTOMATIC HEADLAMP DIMMING RELAY (UNDERHOOD FUSE BLOCK) AUTOMATIC HIGH BEAM PWM SIG BLK WIRE BLK/WHT WIRE BRN WIRE BRN/WHT WIRE CLASS 2 (IPM) GMLAN (IPM) COMPUTER DATA LINES SYSTEM DK GRN WIRE DK GRN/WHT WIRE FOG LAMP FOG LAMP FUSE FOG LAMP RELAY FRONT FOG LAMP SWITCH FTP GMLAN (IPM) HEAD HIGH BEAM HIGH BEAM IND HOT AT ALL TIMES HOT IN RUN OR START HVAC CONTROL MODULE (AT CENTER OF DASH) INFO NOT AVAIL INSIDE REAR VIEW MIRROR INSTRUMENT PANEL CLUSTER INSTRUMENT PANEL MODULE (IPM) (BEHIND GLOVE BOX) LEFT FRONT TURN SIGNAL/ FOG LAMP ASSEMBLY LEFT HEAD- LAMP BALLAST LEFT HEADLAMP ASSEMBLY LIGHTS ON IND FOG LAMPS IND LO BEAM RELAY LOW (NOT USED) FTP LOW BEAM LOW REF LT BLU WIRE LT GRN WIRE LT LOW BEAM FUSE OFF PARK ORG/ WIRE PNK WIRE PNK/WHT WIRE PPL PPL PPL RED WIRE RED/WHT WIRE RIGHT FRONT TURN SIGNAL/ FOG LAMP ASSEMBLY RIGHT HEAD- LAMP BALLAST RIGHT HEADLAMP ASSEMBLY RT LO BEAM FUSE SEN SIG SER DATA SER DATA GMLAN SMART BEAM FUSE SPARE RELAY SPLICE PACK SUNLOAD SENSOR ASSEMBLY (CENTER OF DASH, IN DEFROSTER GRILLE) TAN WIRE TILT/LK LMP/CLM COILS FUSE TURN SIGNAL/ MULTIFUNCTION SWITCH UNDERHOOD FUSE BLOCK (RIGHT FRONT SIDE OF ENG COMPT) WHT WIRE YEL WIRE

12 24 21 192 1485 5060 FOG LMP SW SIG HI BEAM SW SIG LOW SPD GMLAN SER DATA 6 4 3 1970 1969 1317 LOW BEAM RLY CTRL HI BEAM RLY CTRL FOG LMP RLY CTRL AIR CONDITIONING SYSTEM AUTO AUTO PPL BLK WIRE BLK/WHT WIRE BRN WIRE BRN/WHT WIRE CLASS 2 (IPM) GMLAN (IPM) COMPUTER DATA LINES SYSTEM DK GRN WIRE DK GRN/WHT WIRE FOG LAMP FOG LAMP FUSE FOG LAMP RELAY FRONT FOG LAMP SWITCH FTP GMLAN (IPM) B+ HEAD HI BEAM RELAY HIGH BEAM HIGH BEAM IND HOT AT ALL TIMES HOT IN RUN OR START HVAC CONTROL MODULE (AT CENTER OF DASH) INFO NOT AVAIL INSTRUMENT PANEL CLUSTER INSTRUMENT PANEL MODULE (IPM) (BEHIND GLOVE BOX) LEFT FRONT TURN SIGNAL/ FOG LAMP ASSEMBLY LEFT HEADLAMP ASSEMBLY LIGHTS ON IND FOG LAMPS IND LO BEAM RELAY LOW (NOT USED) FTP LOW BEAM LOW REF LT BLU WIRE LT GRN WIRE LT HI BEAM FUSE LT LOW BEAM FUSE OFF PARK ORG/ WIRE PNK WIRE PNK/WHT WIRE PPL PPL PPL RED WIRE RIGHT FRONT TURN SIGNAL/ FOG LAMP ASSEMBLY RIGHT HEADLAMP ASSEMBLY RT HI BEAM FUSE RT LOW BEAM FUSE SEN SIG SER DATA SER DATA GMLAN SPARE RELAY SPLICE PACK SUNLOAD SENSOR ASSEMBLY (CENTER OF DASH, IN DEFROSTER GRILLE) TAN WIRE TAN/WHT WIRE TILT/LK LMP/CLM COILS FUSE TURN SIGNAL/ MULTIFUNCTION SWITCH UNDERHOOD FUSE BLOCK (RIGHT FRONT SIDE OF ENG COMPT) WHT WIRE YEL WIRE

ABS INDICATOR BACKLIGHTING BACKLIGHTING CTRL BLK WIRE BLK/WHT WIRE BRAKE FLUID LEVEL SWITCH (MASTER CYLINDER RESERVOIR) BRAKE INDICATOR BRN WIRE BRN/WHT WIRE CHARGE INDICATOR SECURITY INDICATOR CLASS 2 (ECM) CLASS 2 (IPM) CLOCK CLOCK CTRL DIC SW DIC SW SIG DIC SW LOW REF DK BLU WIRE DK GRN WIRE DK GRN/WHT WIRE ECM/TCM FUSE ENGINE CONTROLS SYSTEM ENGINE COOLANT TEMPERATURE INDICATOR FASTEN SAFETY BELT INDICATOR FRONT FOG LAMPS INDICATOR FUEL LEVEL GMLAN (EBCM) GMLAN (ECM) GMLAN (ECM) GMLAN GMLAN (ECM) GMLAN (RIM) GMLAN (IPM) GMLAN (RIM) GMLAN (SDM) GMLAN (TCM) HIGH BEAM INDICATOR HOT AT ALL TIMES HOT IN RUN OR START HUD FUSE INSTRUMENT PANEL CLUSTER (IPC) LEFT TURN INDICATOR LIGHTS ON INDICATOR LOW ENGINE OIL PRESSURE INDICATOR MALFUNCTION INDICATOR PNK WIRE POWER DISTRIBUTION SYSTEM PPL RED WIRE RED/WHT WIRE RIGHT TURN INDICATOR SIR INDICATOR SPEEDOMETER SPORT MODE INDICATOR TACHOMETER TAP UP/ DOWN ENABLE INDICATOR TCM/IPC/ ECM FUSE TEMPERATURE TPM INDICATOR CRUISE INDICATOR TRACTION CONTROL OFF INDICATOR TRIP ODOMETER TRIP RESET SW SIG TRIP RESET SWITCH TRIP/ODOMETER CTRL UNDERHOOD FUSE BLOCK (RIGHT FRONT SIDE OF ENG COMPT) WAIT TO START INDICATOR (NOT USED) WHT WIRE WINTER MODE INDICATOR

1 21 25 PANEL LAMP SUPPLY CTSY LAMP ON SIG BACKLIGHT LAMP CTRL BACKLIGHT LAMP CTRL BLK WIRE BLK/WHT WIRE COMPUTER DATA LINES SYSTEM DK GRN WIRE DRIVER DOOR MODULE (DDM) (IN DOOR) FRONT PASSENGER DOOR MODULE (FPDM) (IN DOOR) GMLAN SERIAL DATA HOT AT ALL TIMES I/P DIMMER SWITCH INSTRUMENT PANEL MODULE (IPM) (BEHIND RIGHT SIDE OF DASH) IPM/ALDL FUSE LEFT FRONT DOOR LOCK SWITCH LEFT FRONT DOOR SWITCH ASSEMBLY LIC DIMMING FUSE LT BLU WIRE LT BLU/BLK WIRE PARK LAMP CTRL PARK LAMP RELAY PNK WIRE PNK/BLK WIRE REAR COMPARTMENT INTERIOR LID RELEASE SWITCH RED WIRE RED/WHT WIRE RIGHT FRONT DOOR LOCK SWITCH RIGHT FRONT WINDOW SWITCH TILT/LK/ LMP/CLM FUSE UNDERHOOD FUSE BLOCK (IN ENGINE COMPT, NEXT TO LEFT STRUT TOWER) WHT WIRE YEL WIRE

13 14 15 BARE PPL DRAIN WIRE AUX VIDEO HI SIG VSS 2 4 5 PNK VOICE RECOG SIG VOICE RECOG LOW DRAIN WIRE 3.6L 4.6L ANTENNA ANTENNA COAX AUX AUD RT SIG AUX AUD LT SIG AUX DET SIG DRN WIRE DRN WIRE AUX VID HI SIG BARE BARE BARE BARE PNK BARE PPL WIRE BARE PPL BASE BLK WIRE BLK/WHT WIRE BRN WIRE CASE GROUND CELLULAR MICROPHONE SIGNAL DRAIN WIRE 10 2 BARE BARE COAX COAX RADIO ANTENNA COAX COAXIAL CABLE COMPUTER DATA LINES SYSTEM (IN REAR COMPT, TO REAR OF LEFT REAR SHOCK TOWER) DK GRN WIRE GLOBAL POSITIONING SYSTEM (GPS) ANTENNA GPS SIG GRY WIRE HOT AT ALL TIMES INSIDE REARVIEW MIRROR (ISRVM) LUXURY NCA WIRE PNK BARE BARE PPL WIRE PNK WIRE PNK/BLK WIRE RADIO RADIO ANTENNA MODULE (ABOVE CENTER REAR OF HEADLINER) RADIO REAR WINDOW ANTENNA RADIO/ ONSTAR FUSE REAR OBJECT SENSOR CONTROL MODULE (IN LEFT SIDE OF REAR COMPT, UNDER REAR SHELF) RED WIRE RED/WHT WIRE RIGHT REAR FUSE BLOCK (UNDER RIGHT SIDE OF REAR SEAT) SPLICE PACK VSS W/ HID HEADLAMPS W/ VEHICLE COMMUNICATION SYSTEM WHT WIRE YEL WIRE

1 3 2 SENSOR SIGNAL SUPPLY VOLTAGE LOW REFERENCE 2 3 1 LOW REFERENCE SUPPLY VOLTAGE SENSOR SIGNAL BACKUP LAMP SPLY VOLTAGE REAR PARKING DIAGNOSTIC SIG BLK WIRE BRN WIRE CENTER AMBER IND CTRL LEFT AMBER IND CTRL CENTER AMBER IND IND DK BLU WIRE DK GRN WIRE GROUND IGN 1 VOLTAGE PNK WIRE GRY WIRE HOT AT ALL TIMES HOT IN RUN, START LEFT AMBER IND LEFT REAR CORNER OBJECT SENSOR (LEFT CORNER OF REAR BUMPER) LEFT REAR FUSE BLOCK (UNDER LEFT SIDE OF REAR SEAT) LEFT REAR MIDDLE OBJECT SENSOR (LEFT MIDDLE OF REAR BUMPER) LT BLU WIRE LT GRN WIRE NAVIGATION CIRCUIT ORG/ WIRE PNK WIRE PPL REAR INTEGRATION MODULE (RIM) REAR OBJECT SENSOR CONTROL MODULE REAR PARKING ASSIST (RPA) DIAGNOSTIC CONNECTOR REAR PARKING ASSIST (RPA) DISPLAY REAR PARKING ASSIST CHIME REAR PARKING ASSIST CHIME SIG TELLTALE ASSEMBLY SPLY VOLTAGE RED IND CRTL WIRE RED WIRE REV LAMP RELAY REVERSE FUSE REVERSE RELAY CONTROL RIGHT REAR CORNER OBJECT SENSOR (RIGHT CORNER OF REAR BUMPER) RIGHT REAR FUSE BLOCK (UNDER RIGHT SIDE OF REAR SEAT) RIGHT REAR MIDDLE OBJECT SENSOR (RIGHT MIDDLE OF REAR BUMPER) RIM FUSE VEHICLE SPEED SIG WHT WIRE YEL WIRE

1 2 3 LOW SPD GMLAN SERIAL DATA BAT POS VOLTAGE 1 2 5 RT MIR MTR DN CTRL RT MIR MTR UP/RT CTRL PASS MIR MTR LFT CTRL 2 7 9 BAT POS VOLTAGE LOW SPD GMLAN SERIAL DATA GND BLK WIRE BLK/WHT WIRE BRN WIRE BRN/WHT WIRE COMPUTER DATA LINES SYSTEM DK GRN WIRE DRIVER DOOR MODULE (DDM) (INSIDE DRIVER DOOR) DRIVER DR MOD FUSE FEED FRONT PASSENGER DOOR MODULE (FPDM) (INSIDE RIGHT FRONT DOOR) GROUND GRY WIRE HORIZ MOTOR HORIZ POS SENSOR HOT AT ALL TIMES LEFT HORIZ HORIZ POS SENS LEFT LOGIC LEFT REAR FUSE BLOCK (UNDER LEFT SIDE OF REAR SEAT) LT BLU/BLK WIRE LT GRN WIRE MIRROR SWITCHES DRIVER DOOR SWITCH ASSEMBLY (DDSA) PASS VERT POS SENS SIG LOW REF PASS HORIZ POS SENS SIG PASSENGER OUTSIDE REARVIEW MIRROR PPL/WHT WIRE RED WIRE RED/WHT WIRE RIGHT RIGHT HORIZ RIGHT REAR FUSE BLOCK (UNDER RIGHT SIDE OF REAR SEAT) RT FRT DR MOD FUSE RTN SEL LEFT SEL RIGHT VERT DOWN VERT MOTOR VERT POS SENS VERT POS SENSOR VERT UP W/ INFOTAINMENT SYSTEM 012, 014, 015 WHT WIRE YEL WIRE

BLK WIRE BLK/WHT WIRE BRN WIRE BRN/WHT WIRE COIL MODULE 1) COIL MODULE 7) DK BLU/WHT WIRE DK GRN WIRE DK GRN/WHT WIRE EVEN COILS FUSE FROM MAIN RELAY (DIAGRAM 1 OF 5) FUEL INJECTOR FUSE (DIAGRAM 2 OF 5) GRN WIRE GRY WIRE IGNITION COIL/ MODULE 1 IGNITION COIL/ MODULE 2 IGNITION COIL/ MODULE 3 IGNITION COIL/ MODULE 4 IGNITION COIL/ MODULE 5 IGNITION COIL/ MODULE 6 IGNITION COIL/ MODULE 7 IGNITION COIL/ MODULE 8 LT BLU WIRE LT BLU/BLK WIRE LT BLU/WHT WIRE LT GRN WIRE LT GRN/BLK WIRE ODD COILS FUSE ORG/ WIRE ORG/BLK WIRE ORG/WHT WIRE PNK WIRE PNK/ BLK WIRE PNK/BLK WIRE PPL PPL 15 16 17 18 19 PPL/WHT WIRE RED WIRE TAN WIRE TAN/WHT WIRE UNDERHOOD FUSE BLOCK (RIGHT FRONT OF ENGINE COMPT) YEL WIRE YEL/BLK WIRE