Cadillac STS I (2004-2007) blu Wiring diagrams

ABS IND. BLK WIRE BLU WIRE BRAKE FLUID PRESSURE SENSOR (ON REAR OF EBCM) BRAKE PEDAL POSITION SENSOR (ATTACHED TO TOP OF BRAKE PEDAL ASSEMBLY) BRN WIRE BRN/WHT WIRE COMPUTER DATA LINES SYSTEM DK BLU WIRE DK GRN WIRE EBCM GMLAN GRN WIRE GRY WIRE GRY/BLK WIRE HI SPD GMLAN SER DATA W/U IGN INSTRUMENT PANEL CLUSTER (IPC) INSTRUMENT PANEL MODULE (IPM) LEFT FRONT WHEEL SPEED SENSOR (WSS) LEFT REAR WHEEL SPEED SENSOR (WSS) LO SPD GMLAN SER DATA LOGIC LOW REF LT BLU WIRE LT GRN WIRE LT GRN/BLK WIRE ORG/ WIRE PPL PPL/WHT WIRE RIGHT FRONT WHEEL SPEED SENSOR (WSS) RIGHT REAR WHEEL SPEED SENSOR (WSS) STEER WHEEL POS SIG A STEER WHEEL POS SIG B STEERING ANGLE SENSOR (ON BASE OF STEERING COLUMN) TAN WIRE TAN/BLK WIRE TRACTION CONTROL IND TRACTION CONTROL SWITCH WHT WIRE YAW RATE, LATERAL ACCELERATION SENSOR (UNDER FRONT PASSENGER SEAT) YEL WIRE

1 2 3 4 5 6 LOW REF AIR QUAL HC SENS IGN 1 VOLTAGE AIR QUAL NOX SENS A/C COMPRESSOR CLUTCH A/C DEF AIR QUALITY SENSOR (IF EQUIPPED) (UNDER FRONT FACIA, NEAR CENTER OF GRILLE) BLK WIRE BLOWER CONTROLLER (IN PASS COMPT, UNDER DASH, BEHIND GLOVE BOX) BLOWER MOTOR (UNDER DASH, BEHIND GLOVE BOX) BLOWER MTR FAN CONTROL BLOWER MTR RESISTOR ASSY SUPPLY VOLTAGE BLOWER MTR SPEED CTRL BLU WIRE BRN WIRE COLD DK BLU WIRE DK GRN WIRE DK GRN/WHT WIRE DRIVER AIR TEMPERATURE ACTUATOR (ON LEFT SIDE OF HVAC MODULE) DRY AIR TEMP SIGNAL FRONT PASSENGER AIR TEMPERATURE ACTUATOR (ON RIGHT SIDE OF HVAC MODULE) GROUND GRY WIRE GRY/BLK WIRE HOT HOT W/ IGN 1 RELAY ENERGIZED IGN 1 FUSE LT BLU WIRE LT GRN WIRE LT GRN/BLK WIRE LT GRN/WHT WIRE MODE ACTUATOR (ON TOP LEFT SIDE OF HVAC MODULE) MODE VALVE SIGNAL PASS AIR TEMP SIGNAL PNK 15 16 17 18 19 20 21 22 23 24 25 26 27 28 29 30 31 32 33 34 35 36 WIRE PNK WIRE POWER SEAT SYSTEM (HEATED SEAT CIRCUIT) PPL PPL/WHT WIRE RIGHT REAR FUSE BLOCK (UNDER RIGHT SIDE OF REAR SEAT) SPLICE PACK TAN WIRE WHT WIRE WHT/BLK WIRE YEL WIRE YEL/BLK WIRE

1 11 PWM DATA PWM DATA BLK WIRE BLU WIRE BRN WIRE CLIMATE CONTROL SEAT MODULE DK BLU WIRE DPM FUSE DRIVER BACK COOLED SEAT BLOWER MOTOR DRIVER CUSHION COOLED SEAT BLOWER MOTOR DRIVER CUSHION HEATED SEAT ELEMENT DRIVER HEATED SEAT BACK ELEMENT GRN WIRE GRY WIRE HOT AT ALL TIMES IGN 3 IGN 3 FUSE IGN 3 VLTG IGNITION 3 RELAY INSTRUMENT PANEL MODULE (RIGHT SIDE OF DASH BEHIND GLOVE BOX) LEFT REAR FUSE BLOCK (UNDER LEFT SIDE OF REAR SEAT) LOW REF GROUND PWM DATA PWM DATA FAN SPD CNTRL NTC SIG NTC SIG FAN SPD CNTRL LT BLU WIRE MEMORY SEAT MODULE (UNDER DRIVER SEAT) ORG/ WIRE PASSENGER BACK COOLED SEAT BLOWER MOTOR PASSENGER CUSHION COOLED SEAT BLOWER MOTOR PASSENGER CUSHION HEATED SEAT ELEMENT PASSENGER HEATED SEAT BACK ELEMENT PNK SPLY VLTG WIRE PNK WIRE RED WIRE RED/WHT WIRE RF HTD ST/ S-BAND FUSE RIGHT REAR FUSE BLOCK (UNDER RIGHT SIDE OF REAR SEAT) SPLY VTLG BATTERY WHT WIRE YEL WIRE YEL/BLK WIRE

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

ABS FUSE BLK WIRE BLU WIRE BRAKE FLUID PRESSURE SENSOR (ON REAR OF EBCM) COMPUTER DATA LINES SYSTEM DK BLU WIRE EBCM FUSE ELECTRONIC BRAKE CONTROL MODULE (EBCM) (ON RIGHT FRONT CORNER OF ENGINE COMPT) GRN WIRE GRY WIRE GRY/BLK WIRE HOT AT ALL TIMES HOT IN RUN OR START IGN 1 RELAY LONG ACCELEROMETER SIGNAL LT BLU WIRE LT GRN WIRE LT GRN/BLK WIRE LT LT PNK WIRE PPL PPL/WHT WIRE RED WIRE RED/BLK WIRE STEER WHEEL POS SIG A STEER WHEEL POS SIG B LOW REF STEERING ANGLE SENSOR (ON BASE OF STEERING COLUMN) TAN WIRE TAN/BLK WIRE UNDERHOOD FUSE BLOCK (RIGHT FRONT SIDE OF ENGINE COMPT) WHT WIRE YAW RATE, LATERAL ACCELERATION SENSOR (UNDER FRONT PASSENGER SEAT)

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

3 6 (W/ HID) (W/O HID) 4 2 (W/ HID) (W/O HID) BLK WIRE BLU WIRE BRN WIRE BRN/WHT WIRE CENTER HIGH MOUNTED STOP LAMP (CHMSL) DK GRN WIRE DK GRN/WHT WIRE FROM UNDERHOOD FUSE BLOCK (LIC/IPM GRN WIRE GROUND GROUND B+ HOT AT ALL TIMES LEFT FRONT CORNERING/ SIDE MARKER LAMP LEFT HEADLAMP ASSEMBLY LEFT FRONT PARK LAMP LEFT PARK LAMP SUPPLY VOLTAGE STOP LAMP SUPPLY VOLTAGE LEFT REAR CORNERING/ SIDE MARKER LAMP LEFT REAR STOP/ TURN LAMP SUPPLY VOLTAGE LEFT TAIL LAMP OUTAGE DETECTION SIGNAL LEFT TAIL LAMP ASSEMBLY LOGIC LT BLU WIRE LT PARK FUSE (DIAGRAM 1 OF 2) LT PPL PPL PPL PPL RIGHT FRONT CORNERING/ SIDE MARKER LAMP RIGHT HEADLAMP ASSEMBLY RIGHT FRONT PARK LAMP RIGHT PARK LAMP SUPPLY VOLTAGE STOP LAMP SUPPLY VOLTAGE RIGHT REAR CORNERING/ SIDE MARKER LAMP RIGHT REAR STOP/ TURN LAMP SUPPLY VOLTAGE RIGHT TAIL LAMP ASSEMBLY RIGHT TAIL LAMP OUTAGE DETECTION SIGNAL RT PARK FUSE SIDE MARKER SPLICE PACK STOP LAMP FUSE STOP LAMP RELAY STOP TURN STOP- TURN TAIL TAIL WHT WIRE YEL WIRE YEL/BLK WIRE

1 11 PWM DATA PWM DATA BLK WIRE BLU WIRE BRN WIRE CLIMATE CONTROL SEAT MODULE DK BLU WIRE DRIVER CUSHION HEATED SEAT ELEMENT DRIVER HEATED SEAT BACK ELEMENT GRN WIRE GRY WIRE HOT AT ALL TIMES IGN 3 IGN 3 FUSE IGN 3 VLTG IGNITION 3 RELAY INSTRUMENT PANEL MODULE (RIGHT SIDE OF DASH BEHIND GLOVE BOX) LEFT REAR FUSE BLOCK (UNDER LEFT SIDE OF REAR SEAT) LOW REF GROUND PWM DATA PWM DATA MEMORY SEAT MODULE (UNDER DRIVER SEAT) NTC SIG NTC SIG ORG/ WIRE PASSENGER CUSHION HEATED SEAT ELEMENT PASSENGER HEATED SEAT BACK ELEMENT PNK SPLY VLTG WIRE PNK WIRE RED WIRE RED/WHT WIRE RF HTD ST/ S-BAND FUSE RIGHT REAR FUSE BLOCK (UNDER RIGHT SIDE OF REAR SEAT) SPLY VTLG BATTERY WHT WIRE YEL WIRE YEL/BLK WIRE

BATTERY BLK WIRE BLU WIRE DOWN HORIZONTAL HOT AT ALL TIMES LEFT REAR FUSE BLOCK (UNDER LEFT SIDE OF REAR SEAT) LUMBAR MOTOR DOWN CONTROL LUMBAR MOTOR FORWARD CONTROL LUMBAR MOTOR REARWARD CONTROL LUMBAR MOTOR UP CONTROL ORG/ WIRE PASSENGER LUMBAR ADJUSTER SWITCH PASSENGER LUMBAR MOTOR ASSEMBLY PNK WIRE POWER SEAT CIRCUIT BREAKER RED/WHT WIRE RWD VERTICAL W/ HEATED SEATS WHT WIRE

7 2 14 3 9 CLASS 2 SERIAL DATA BATTERY CLASS 2 SERIAL DATA BATTERY GROUND BATTERY BLK WIRE BLK/WHT WIRE BLU WIRE BRN/WHT WIRE CLASS 2 CLASS 2 SERIAL DATA COMPUTER DATA LINES SYSTEM DK GRN WIRE DOWN MIRROR SWITCH SIG DRIVER DOOR MODULE (ON DRIVER DOOR, UNDER DOOR TRIM PANEL) DRIVER DOOR SWITCH ASSEMBLY DRIVER DR MOD FUSE DRIVER MIRROR MOTOR HORIZONTAL CTRL DRIVER MIRROR MOTOR HORIZONTAL/VER CTRL DRIVER MIRROR MOTOR VERTICAL CTRL DRIVER OUTSIDE REARVIEW MIRROR FRONT PASSENGER DOOR MODULE (ON FRONT PASSENGER DOOR, UNDER DOOR TRIM PANEL) GROUND GRY WIRE HORIZ MOTOR HOT AT ALL TIMES LEFT LEFT MIRROR SELECT LEFT REAR FUSE BLOCK (NEAR LEFT SIDE OF REAR SEAT, UNDER CARPET) LOGIC PASSENGER MIRROR MOTOR HORIZ/VER CTRL PASSENGER MIRROR MOTOR HORIZONTAL CTRL PASSENGER OUTSIDE REARVIEW MIRROR PPL PPL PASSENGER MIRROR MOTOR VERTICAL CTRL RED WIRE RED/WHT WIRE RIGHT RIGHT MIRROR SELECT SWITCH SIG RIGHT MIRROR SWITCH SIG LEFT MIRROR SWITCH SIG RIGHT REAR FUSE BLOCK (NEAR RIGHT SIDE OF REAR SEAT, UNDER CARPET) RT FRT DR MOD FUSE SEL SERIAL DATA SWITCH SIG UP MIRROR SWITCH SIG VERT MOTOR WHT WIRE YEL WIRE