Cadillac STS I (2004-2007) (under dash, near firewall grommet) Wiring diagrams

3.6L 4.6L 5076 PNK 7 WIRE BATTERY BATTERY CURRENT SENSOR (75 MM DOWNSTREAM FROM NEGATIVE BATTERY TERMINAL) BATTERY INDICATOR BLK WIRE BLK/WHT WIRE BRN WIRE COMPUTER DATA LINES SYSTEM CURRENT SENSOR LOW REF CURRENT SENSOR SIG CURRENT SENSOR SUPPLY VOLT DK GRN WIRE FUSIBLE LINK GEN F-TERM GEN L-TERM GENERATOR GMLAN (ECM) GRY WIRE HI SPEED GMLAN SERIAL DATA - HOT W/ IGNITION 1 RELAY ENERGIZED IGN IGN 1 VOLTAGE INSTRUMENT PANEL CLUSTER (IPC) LO SPD GMLAN SERIAL DATA LOGIC PNK WIRE POWER DISTRIBUTION SYSTEM RED WIRE SPLICE PACK STARTER TAN WIRE TAN/BLK WIRE TCM/IPC/ ECM FUSE UNDERHOOD FUSE BLOCK (RIGHT FRONT SIDE OF ENG COMPT) WHT WIRE

4.6L 3.6L BANK 1 SENSOR 1 BLK WIRE DATA LINK CONNECTOR (DLC) (UNDER LOWER LEFT SIDE OF DASH) DISTANCE SENSING CRUISE CONTROL MODULE (BEHIND FRONT FASCIA, NEAR HOOD LATCH) DK GRN WIRE ELECTRONIC SUSPENSION (ESC) CONTROL MODULE (BELOW RIGHT "C" PILLAR) HEADLAMP LEVELING MODULE HIGH SPEED GMLAN DATA WAKE UP HIGH SPEED GMLAN DATA WAKEUP HIGH SPEED GMLAN ECM/ TCM WAKEUP HIGH SPEED GMLAN SERIAL DATA BUS + HOT AT ALL TIMES LOW SPEED GM LAN SERIAL DATA LOW SPEED GMLAN SERIAL DATA RED/WHT WIRE SPLICE TAN WIRE TAN/BLK WIRE TRANSMISSION CONTROL MODULE (TCM) (RIGHT FRONT CORNER OF ENGINE COMPT) UNDERHOOD FUSE BLOCK (RIGHT FRONT SIDE OF ENGINE COMPARTMENT) IPM/ ALDL FUSE YEL WIRE YEL/BLK WIRE

AUDIO AMPLIFIER DIGITAL RADIO RECEIVER DK GRN WIRE DRIVER DOOR MODULE (DDM) (IN DOOR) DRIVER DOOR SWITCH ASSEMBLY (IN DOOR) FROM INSTRUMENT PANEL MODULE (IPM) (DIAGRAM 1 OF 1) FRONT PASSENGER DOOR MODULE (FPDM) (IN DOOR) HEAD UP DISPLAY (HUD) HVAC CONTROL MODULE (IN CENTER OF DASH, BELOW RADIO) INSTRUMENT PANEL CLUSTER (IPC) LEFT REAR DOOR MODULE (LRDM) (IN DOOR) LOW SPEED GM LAN SERIAL DATA MEMORY SEAT MODULE (MSM) (UNDER DRIVER SEAT) RADIO REAR INTEGRATION MODULE (RIM) (UNDER LEFT SIDE OF PACKAGE SHELF) REMOTE CONTROL DOOR LOCK RECEIVER (UNDER PACKAGE SHELF) RIGHT REAR DOOR MODULE (RRDM) (IN DOOR) SPLICE SPLICE PACK STEERING COLUMN LOCK CONTROL MODULE (LEFT SIDE OF STEERING COLUMN) TO VEHICLE COMMUNICATION INTERFACE MODULE (VCIM) (DIAGRAM 1 OF 1) TV ANTENNA MODULE (BELOW LEFT SIDE OF PACKAGE SHELF)

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

AUTO ON BAT POS VOLTAGE BLK WIRE BLK/WHT WIRE BRN WIRE COMPUTER DATA LINES SYSTEM COURTESY LMP SW ON SIG DK BLU WIRE DK GRN WIRE DK GRN/WHT WIRE ENG/ MET GRN WIRE HEAD UP DISPLAY (HUD) I/P DIMMER SW SIG I/P DIMMER SWITCH IGN MESSAGE REQUEST IMAGE DN IMAGE UP INFO DN INFO RESET INFO UP INSTRUMENT PANEL MODULE (IPM) (BEHIND GLOVE BOX) LO SPD GMLAN SERIAL DATA LOGIC LOW REF LOW SPD GMLAN SERIAL DATA NIGHT VISION IMAGE UP SIG HEAD UP DISPLAY SW LOW REF LT BLU WIRE LT BLU/BLK WIRE LT GRN/BLK WIRE NIGHT VISION IMAGE DIMMING SIG NIGHT VISION IMAGE DN SIG PARK BRAKE SWITCH (BASE OF BRAKE PEDAL) PK BRK SW SIG PNK WIRE PNK/ DK PNK WIRE PNK/BLK WIRE RED/WHT WIRE SIG GND SPLICE PACK TAN WIRE TRIP A/B TRIP RESET W/ HEAD UP DISPLAY WHT WIRE XXX MPH/KPM CHECK GAGES YEL WIRE

15 9 GMLAN SERIAL DATA BACKLIGHT LAMP CTRL AUTOMATIC TRANSMISSION SHIFT LEVER ASSEMBLY BLK WIRE COMPUTER DATA LINES SYSTEM DK GRN WIRE FRONT AUXILIARY POWER OUTLET GMLAN SERIAL DATA BACKLIGHT LAMP CTRL HAZARD SWITCH HVAC CONTROL MODULE (CENTER OF DASH, BELOW RADIO) I/P DIMMER SWITCH IGNITION MODE SWITCH INFLATABLE RESTRAINT STEERING WHEEL MODULE COIL INFLATABLE RESTRAINT STEERING WHEEL MODULE COIL FUSE HOLDER FUSE LEFT REAR DOOR MODULE (LRDM) (IN DOOR) LEFT REAR WINDOW SWITCH LEFT STEERING WHEEL CONTROLS REAR AUXILIARY HVAC CONTROL MODULE RIGHT REAR DOOR MODULE (RRDM) (IN DOOR) RIGHT REAR WINDOW SWITCH RIGHT STEERING WHEEL CONTROLS SPLICE SPLICE PACK SUNROOF SWITCH TRACTION CONTROL SWITCH WHT WIRE YEL WIRE

AUTOMATIC TRANSMISSION SHIFT LEVER ASSEMBLY BLK WIRE COAX COAX RKE ANT COMPUTER DATA LINES SYSTEM DK BLU WIRE DK GRN WIRE DK GRN/WHT WIRE ECM/TCM FUSE EXTERIOR REAR COMPARTMENT LID RELEASE SWITCH GRY WIRE HEADLINER KEYLESS ENTRY ANTENNA HOT AT ALL TIMES IGNITION MODE SWITCH IGNITION MODE SWITCH BATTERY POSITIVE IGNITION MODE SWITCH KEYLESS ENTRY ANTENNA LOW SPD GMLAN DATA LT BLU WIRE LT BLU/WHT WIRE LT GRN WIRE LT GRN/BLK WIRE LT GRN/WHT WIRE ORG/ WIRE ORG/BLK WIRE PNK IGNITION 1 VOLTAGE SHIFT INTERLOCK SUPPLY WIRE PNK RF DOOR HANDLE SW TRUNK RELEASE CTRL LF DOOR HANDLE SW GROUND WIRE PNK WIRE PNK/BLK WIRE PPL PPL/WHT WIRE REAR COMPARTMENT KEYLESS ENTRY ANTENNA BACKUP KEYLESS ENTRY ANTENNA REAR WINDOW KEYLESS ENTRY ANTENNA LEFT FRONT DOOR HANDLE ANTENNA RED/WHT WIRE REMOTE CONTROL DOOR LOCK RECEIVER (RCDLR) (UNDER REAR SPEAKER SHELF) RIGHT FRONT DOOR HANDLE ANTENNA RKE ANT LOW REF 5 RKE ANT SIG 4 RKE ANT LOW REF 4 PNK WIRE RKE ANT SIG 5 SPLICE PACK TAN WIRE UNDERHOOD FUSE BLOCK (IN ENGINE COMPT, NEXT TO LEFT STRUT TOWER) WHT WIRE YEL WIRE YEL/BLK WIRE