Cadillac DTS I (2005-2011) power distribution system Wiring diagrams

1 2 3 4 5 6 7 8 9 10 11 12 13 14 15 16 17 18 LED DIMMING SIG BACKLIGHT LAMP CTRL 1382 1491 2614 1236 INTERIOR LIGHTS SYSTEM 2 6 3 5 4 3 2 1 BLW MTR LO REF BATT VOLT MTR SPD CTRL GND AIR TEMP MTR CTRL AMBIENT AIR TEMPERATURE SENSOR (FORWARD OF RADIATOR) ASP AUXILIARY AIR TEMPERATURE ACTUATOR (IF EQUIPPED) (NEAR AUXILIARY BLOWER MOTOR) AUXILIARY MODE ACTUATOR (UNDER FRONT CONSOLE) BATT LOW REF GND BLK WIRE BLK/RED WIRE BLK/YEL WIRE BLOWER RELAY 51 BLW MTR SPD CTRL BRN WIRE BRN/BLK WIRE COMPUTER DATA LINES SYSTEM CONTROL MODULE DEFOGGER SYSTEM DK BLU WIRE DK BLU/WHT WIRE DK GRN WIRE DRIVER AIR TEMPERATURE ACTUATOR (LEFT SIDE OF HVAC MODULE) DRIVER INFOR- MATION CENTER (DIC) EVAPORATIVE TEMPERATURE SENSOR (CENTER OF DASH) GRY WIRE GRY/BLK WIRE GRY/GRN WIRE GRY/PNK WIRE GRY/YEL WIRE HOT AT ALL TIMES HOT IN RUN OR START HVAC CONTROL MODULE (CENTER OF DASH) INSIDE AIR TEMPERATURE SENSOR (LEFT SIDE OF DASH) LOGIC LT BLU WIRE LT BLU/BLK WIRE LT BLU/ORG WIRE LT BLU/PPL WIRE LT BLU/YEL WIRE LT GRN/BLK WIRE LT GRN/WHT WIRE MDLS-BODY FUSE 43 MODE ACTUATOR (RIGHT SIDE OF HVAC MODULE) MTR FUSE 48 BLOWER PNK/ FUSE 49 WIRE ORG/ WIRE ORG/BLU WIRE ORG/PNK WIRE ORG/WHT WIRE PASSENGER AIR TEMPERATURE ACTUATOR (RIGHT SIDE OF HVAC MODULE) PASSKEY FUSE 13 PNK IGN 1 VOLT WIRE PNK WIRE PNK/ORG WIRE POWER DISTRIBUTION SYSTEM PPL SUPPLY VOLT PPL/WHT WIRE RADIO REAR FUSE BLOCK (UNDER LEFT REAR SEAT) RECIRCULATION ACTUATOR (ABOVE BLOWER MOTOR) RED WIRE RED/BLK WIRE RED/DK GRN WIRE RUN 3 FUSE 3 SERIAL DATA TAN WIRE TAN/BLK WIRE WHT WIRE WHT/BLK WIRE WHT/BLU WIRE YEL WIRE YEL/BLK WIRE YEL/GRY WIRE YEL/ORG WIRE YEL/WHT WIRE

1 2 3 4 5 6 7 8 9 10 BATT 4 3 2 1 LOW REF FEED BACK SIG GND MTR SPD CTRL 54 53 RLY CTRL A/C RELAY A/C CLTCH FUSE 4 A/C CLTCH RELAY 34 A/C COMPRESSOR CLUTCH (LOWER LEFT SIDE OF ENGINE) A/C REFRIGERANT PRESSURE SENSOR (ON A/C PRESSURE HOSE) AUXILIARY BLOWER MOTOR (IF EQUIPPED) (UNDER CENTER OF DASH) AUXILIARY BLOWER MOTOR CONTROL MODULE (IF EQUIPPED) (BEHIND MAIN BLOWER MOTOR) AUXILIARY HVAC CONTROL MODULE (IF EQUIPPED) (REAR OF CENTER CONSOLE) BACKLMP CTRL BLK WIRE BRN WIRE COMPUTER DATA LINES SYSTEM DK GRN WIRE DK GRN/WHT WIRE ENGINE CONTROL MODULE (ECM) (LEFT SIDE OF ENGINE COMPT) ENGINE COOLANT TEMPERATURE (ECT) SENSOR (RIGHT REAR OF ENGINE) FAN 1 FUSE 27 FAN 1 RELAY 33 FAN 2 FUSE 26 FAN 2 RELAY 31 FAN 3 RELAY 32 GRY WIRE GRY/BLK WIRE HEADLIGHTS SYSTEM HOT AT ALL TIMES HOT IN RUN OR START HOT W/ PWR/TRN RELAY ENERGIZED HVAC/IPC IGN 1 FUSE 10 IGN RELAY 36 LEFT COOLING FAN (FRONT OF ENGINE COMPT) LOW SPD FAN SERIAL DATA + SERIAL DATA - A/C REF LOW REF LT BLU WIRE LT BLU/BLK WIRE LT GRN WIRE MTR SPD CTRL FEED BACK SIG SERIAL DATA ORG/ WIRE ORG/RED WIRE ORG/WHT WIRE OXY SNSR FUSE 6 PNK LOW REF ECT SENS SIG WIRE PNK PNK WIRE PNK WIRE POWER DISTRIBUTION SYSTEM RED/DK GRN WIRE RIGHT COOLING FAN (FRONT OF ENGINE COMPT) SUNLOAD TWILIGHT SENSOR (TOP CENTER OF DASH) TAN WIRE TAN/BLK WIRE UNDERHOOD FUSE BLOCK (RIGHT SIDE OF ENGINE COMPT) WHT WIRE YEL WIRE

ACCESSORY VOLTAGE ANTI-LOCK BRAKES SYSTEM ANTI-LOCK BRAKES SYSTEM SHIFT INTERLOCK SYSTEM BATTERY POSITIVE VOLTAGE INSTRUMENT PANEL LAMP SUP V BLK WIRE BLK/WHT WIRE BODY CONTROL MODULE (BCM) (RIGHT SIDE OF DASH) BRN WIRE BRN/WHT WIRE COMPUTER DATA LINES SYSTEM COURTESY LAMP CTRL DK BLU WIRE DK BLU/WHT WIRE DK GRN WIRE DK GRN/PPL WIRE DK GRN/WHT WIRE FRONT FOG LAMP SWITCH SIGNAL CRUISE CTRL IND DIMMING SIGNAL GROUND GRY WIRE GRY/BLK WIRE GRY/PNK WIRE HEADLIGHTS SYSTEM HEADLIGHTS SYSTEM CRUISE CONTROL SYSTEM HEADLIGHTS SYSTEM INTERIOR LIGHTS SYSTEM INTERIOR LIGHTS SYSTEM COMPUTER DATA LINES SYSTEM INTERIOR LIGHTS SYSTEM POWER DISTRIBUTION SYSTEM INTERIOR LIGHTS SYSTEM LED DIMMING SIGNAL LT BLU WIRE LT BLU/BLK WIRE LT BLU/WHT WIRE LT BLU/YEL WIRE LT GRN WIRE LT GRN/BLK WIRE OFF/RUN CRANK VOLTAGE CRUISE CTRL RES ACCEL SW SIG ORG/ WIRE ORG/WHT WIRE ORG/YEL WIRE PARK LAMP SWITCH ON SIGNAL PARK LAMP SWITCH ON SIGNAL COURTESY LAMP SW ON SIGNAL PNK WIRE PNK/BLK WIRE PNK/DK BLU WIRE PNK/GRY WIRE POWER DISTRIBUTION SYSTEM PPL PPL/LT GRN WIRE PPL/WHT WIRE TAN WIRE TAN/BLK WIRE TAN/GRY WIRE TRACTION CONTROL SWITCH SIGNAL SHIFT INTERLOCK SOL CTRL PPL TRUNK RELEASE CONTROL AMBIENT LIGHT SENSOR SIGNAL HEADLAMP SWITCH OFF SIGNAL TRUNK, TAILGATE, FUEL DOORS SYSTEM WHT WIRE WHT/BLK WIRE YEL WIRE

BATTERY BCM (CHMSL) FUSE 39 BCM (LTTN) FUSE 25 BCM (RTTN) FUSE 36 BLK WIRE BLK/TAN WIRE BODY CONTROL MODULE (BCM) (RIGHT SIDE OF DASH) BRN WIRE DK BLU WIRE DK BLU/WHT WIRE DK GRN WIRE DK GRN/WHT WIRE GRN WIRE GROUND BATTERY POSITIVE VOLTAGE FOG LAMP RELAY CONTROL GRY WIRE HEADLAMP LOW BEAM RELAY CNTL PARK LAMP RELAY CONTROL HEADLIGHTS SYSTEM EXTERIOR LIGHTS SYSTEM HOT AT ALL TIMES LEFT CORNERING LMP RLY CTRL LEFT FRONT TURN LAMP SUPPLY V STOP LMP RLY COIL SUPPLY V STOP LAMP SWITCH SIGNAL LT BLU WIRE LT BLU/WHT WIRE LT GRN WIRE ORG/GRY WIRE PNK WIRE PNK/BLK WIRE PNK/WHT WIRE POWER DISTRIBUTION SYSTEM POWER DISTRIBUTION SYSTEM HEADLIGHTS SYSTEM PPL/ORG WIRE PPL/WHT WIRE REAR FUSE BLOCK (UNDER LEFT REAR SEAT) RED WIRE RED/GRN WIRE RED/YEL WIRE RUN RELAY COIL CONTROL STARTING/CHARGING SYSTEM TAN WIRE TAN/ORG WIRE TAN/PNK WIRE TAN/WHT WIRE TAN/YEL WIRE VIO WIRE WHT WIRE WINDSHIELD WIPER MTR PARK SW SIG WIPER/WASHER SYSTEM YEL WIRE YEL/VIO WIRE YEL/WHT WIRE

1 2 3 4 5 6 IGN 1 VOL 17 3 PPL ACC SUPPLY VOL SET/COAST/RES/ 18 7 ACC SERIAL DATA STOP LAMP SW SIG 33 53 SERIAL DATA BUS - SERIAL DATA BUS + ACC WAKE-UP SERIAL DATA ACTIVE SIG ADAPTIVE DELUXE CRUISE CONTROL AHEAD SENS ALERT SENS BLK WIRE BODY CONTROL MODULE (BCM) (RIGHT SIDE OF DASH) BRAKE PEDAL POSITION SENSOR (TOP OF BRAKE PEDAL ASSEMBLY) CANCEL SWITCH COMPUTER DATA LINES SYSTEM CRUISE ACTIVE IND CRUISE CONTROL SWITCH CRUISE IND CRUISE SW SIG CRUISE SWITCH DISTANCE SENSING CRUISE CONTROL (DSCC) MODULE (FORWARD OF RADIATOR) DK BLU WIRE DK BLU/WHT WIRE DK GRN WIRE DK GRN/WHT WIRE DRIVER INFORMATION CENTER (DIC) DISPLAY ENGINE CONTROL MODULE (ECM) (LEFT SIDE OF ENGINE COMPT) GMLAN (ECM) GMLAN SERIAL DATA GMLAN SERIAL DATA SERIAL DATA BUS + SERIAL DATA BUS - GND GRN/WHT WIRE GRY WIRE GRY/WHT WIRE HOT AT ALL TIMES HOT W/ IGN RELAY ENERGIZED HVAC/IPC IGN 1 FUSE 10 IGN IGN 1 VOL INFLATABLE RESTRAINT STEERING WHEEL MODULE COIL (TOP OF STEERING COLUMN) INFORMATION CENTER TELLTALE ASSEMBLY INSTRUMENT PANEL CLUSTER (IPC) LEFT STEERING WHEEL CONTROL SWITCH LOGIC LT BLU WIRE LT BLU/BLK WIRE LT BLU/YEL WIRE LT GRN WIRE LT GRN/PPL WIRE MDLS-BODY FUSE 43 NCA WIRE ON IND. ORG/ WIRE ORG/YEL WIRE PNK WIRE POWER DISTRIBUTION SYSTEM PPL REAR FUSE BLOCK (UNDER LEFT REAR SEAT) RED WIRE RED/DK GRN WIRE RIGHT STEERING WHEEL CONTROL SWITCH SET SWITCH RESUME SWITCH STOP LAMP SW SIG TAN WIRE TAN/BLK WIRE TRANSMISSION CONTROL MODULE (TCM) (LEFT FRONT STRUT TOWER) UNDERHOOD FUSE BLOCK (RIGHT SIDE OF ENGINE COMPT) VEHICLE AHEAD IND VEHICLE ALERT IND VEHICLE SPEED SENSOR (VSS) (ON TRANSAXLE CASE EXTENSION) WHT WIRE YEL/GRY WIRE

AUTO DAY/NIGHT MIR LOW REF AUTO DAY/NIGHT MIR SIG AUTOMATIC DAY/NIGHT MIRROR AUTOMATIC HIGH BEAM INDICATOR BACKUP LAMP SPLY VOL BATTERY POSITIVE VOL BLK WIRE BRN/WHT WIRE BUTTON BACKLIGHTING COMPUTER DATA LINES SYSTEM DK GRN WIRE DK GRN/WHT WIRE DRIVER OUTSIDE REARVIEW MIRROR (DRIVER'S DOOR) EMERGENCY EMERGENCY IND FRONT LIGHT SENSOR GMLAN SERIAL DATA GRY/BRN WIRE HOT AT ALL TIMES HOT W/ RAP-HC RELAY 70 ENERGIZED IGN POSITIVE VOL INSIDE REARVIEW MIRROR (ISRVM) KEYPAD KEYPAD GREEN KEYPAD GREEN LED SIGNAL KEYPAD RED LED SIG WIRE KEYPAD RED WIRE KEYPAD SIG LED SIG LED SIGNAL LOGIC LT GRN WIRE LT GRN/BLK WIRE MDLS-BODY FUSE 43 ON/OFF SWITCH ONSTAR ONSTAR IND PHONE PHONE IND PNK/BRN WIRE POWER DISTRIBUTION SYSTEM RAP 2 FUSE 33 REAR FUSE BLOCK (UNDER LEFT REAR SEAT) REAR LIGHT SENSOR RED WIRE RED/DK GRN WIRE SUPPLY VOL W/ LANE DEPARTURE WARNING SENSOR INDICATOR W/ LIMOUSINE YEL WIRE YEL/BLK WIRE

BACKUP LAMP CIRCUIT BLK WIRE BRAKE PEDAL POSITION SENSOR (TOP OF BRAKE PEDAL ASSEMBLY) BRN WIRE CENTER HIGH MOUNTED STOP LAMP (CHMSL) COMPUTER DATA LINES SYSTEM DETECTION SIG DK BLU WIRE DK BLU/WHT WIRE DK GRN WIRE DRIVER OUTSIDE REARVIEW MIRROR (DRIVER'S DOOR) GMLAN (BCM) GRY WIRE HEAD- LIGHTS SYSTEM HOT AT ALL TIMES HOT W/ IGN RELAY 36 RELAY ENERGIZED HVAC/IPC IGN 1 FUSE 10 IGN 1 VOLT INSTRUMENT PANEL CLUSTER (IPC) LAMP LEFT BACKUP LAMP LEFT CORNERING LAMP LEFT FRONT FOG/ CORNERING LAMP LEFT FRONT PARK LAMP LEFT FRONT MARKER LAMP LEFT HEADLAMP LEFT REAR PARK LAMP LEFT FRONT TURN SIGNAL LAMP LEFT MIDDLE PARK LAMP LEFT TAIL LAMP ASSEMBLY LEFT TAIL/ STOP, LEFT TAIL LAMP TURN SIGNAL LAMP LEFT TURN IND LF CRN LAMP FUSE 20 LOGIC LOW SPEED GMLAN SERIAL DATA LT BLU WIRE LT BLU/BLK WIRE LT BLU/WHT WIRE LT BLU/YEL WIRE LT GRN WIRE NCA WIRE ORG/ WIRE PASSENGER OUTSIDE REARVIEW MIRROR (FRONT PASSENGER'S DOOR) PNK WIRE POWER DISTRIBUTION SYSTEM PPL RF CRN LAMP FUSE 21 RIGHT CORNERING RIGHT FRONT FOG/ CORNERING LAMP RIGHT TURN IND SPLY VOLT TAN WIRE TRN/SIG PCB RELAY UNDERHOOD FUSE BLOCK (RIGHT SIDE OF ENGINE COMPARTMENT) W/ HEARSE W/ HEARSE, LIMOUSINE W/ LIMOUSINE PPL W/O HEARSE WHT WIRE YEL WIRE YEL/WHT WIRE

16 11 HEADLAMP HI BM RLY CTRL FOG LP RLY CTRL 17 12 8 PRK LP SW ON SIG HEADLAMP OFF SIG PRK LP SW ON SIG 1970 45 EXTERIOR LIGHTS SYSTEM 23 24 HEADLAMP LO BM RLY CTRL PRK LP RLY CTRL 94 524 307 WIPER/WASHER SYSTEM PPL AMBIENT LIGHT SENS SIG AUTOMATIC HIGH BEAM IND FRONT LIGHT SEN AUTO HEAD SWITCH BLK WIRE BLK/PPL WIRE BODY CONTROL MODULE (BCM) (RIGHT SIDE OF DASH) COMPUTER DATA LINES SYSTEM DK BLU WIRE DK GRN WIRE DK GRN/WHT WIRE EXTERIOR LIGHTS SYSTEM RIGHT HEADLAMP FOG LAMP PCB RELAY FOG LP FUSE 14 FRONT FOG LAMP SWITCH FRONT FOG LP SW SIG FUSE 10 GMLAN (BCM) GMLAN (BCM) IGN GMLAN SERIAL FOG LAMP IND DATA HEAD HEADLAMP SWITCH HIGH BEAM IND HIGH BEAM PCB RELAY HOT AT ALL TIMES HOT W/ IGN RELAY 36 ENERGIZED HVAC CONTROL MODULE INSTRUMENT PANEL CLUSTER (IPC) (CENTER OF DASH) HVAC/IPC IGN 1 INSIDE REARVIEW MIRROR (ISRVM) LEFT FOG LAMP LEFT FRONT FOG/ CORNERING LAMP LEFT HEADLAMP LEFT HEADLAMP BALLAST LEFT HIGH/LOW BEAM HEADLIGHT SOLENOID LO BEAM PCB RELAY LO SPD GMLAN SER DATA LOGIC LOW SPEED GMLAN SERIAL DATA LT BLU WIRE LT GRN WIRE LT GRN/BLK WIRE LT HI BEAM FUSE 16 LT LO BEAM FUSE 17 OFF AUTO ORG/ WIRE PARK PARK HEAD 2 8 PNK 24 18 25 WASHER SW SIG HEADLAMP SW HI BEAM SIG FTP SW SIG WIRE PNK PNK WIRE PNK WIRE PNK/WHT WIRE POWER DISTRIBUTION SYSTEM PPL PPL/LT GRN WIRE RED WIRE RIGHT FOG LAMP RIGHT FRONT FOG/ CORNERING LAMP RIGHT HEADLAMP RIGHT BALLAST HIGH/LOW BEAM HEADLIGHT SOLENOID RT HI BEAM FUSE 15 RT LO BEAM FUSE 18 SERIAL IGN 1 DATA VOLT SUNLOAD TWILIGHT SENSOR (TOP CENTER OF DASH) TAN WIRE TAN/WHT WIRE TURN SIGNAL/ MULTI-FUNCTION SWITCH UNDERHOOD FUSE BLOCK (RIGHT SIDE OF ENGINE COMPT) WHT WIRE YEL WIRE

ADJUSTER SWITCH (IF EQUIPPED) BLK WIRE DK BLU WIRE DOWN DRIVER SEAT LUMBAR DRIVER SEAT LUMBAR MOTOR (DRIVER'S SEAT BACK) FORWARD DOWN FORWARD/ FRONT PASSENGER SEAT LUMBAR MOTOR (FRONT PASSENGER'S SEAT BACK) GRY WIRE HOT AT ALL TIMES ILLUMINATION LEFT REAR SEAT LUMBAR HORIZONTAL MOTOR (LEFT REAR SEAT BACK) LEFT REAR SEAT LUMBAR SWITCH LEFT REAR SEAT LUMBAR VERTICAL MOTOR (LEFT REAR SEAT BACK) LT GRN WIRE ORG/ WIRE ORG/PPL WIRE PASSENGER SEAT LUMBAR ADJUSTER SWITCH (IF EQUIPPED) PNK PNK PNK WIRE PNK WIRE POWER DISTRIBUTION SYSTEM PPL PWR SEAT CIRCUIT BREAKER 55 REAR FUSE BLOCK (UNDER LEFT REAR SEAT) REARWARD RED WIRE RF SEAT CIRCUIT BREAKER 54 RIGHT REAR SEAT LUMBAR SWITCH RWD UP DN RWD UP FWD SWS-RR FUSE 23 TAN WIRE WHT WIRE YEL WIRE

ACC VOLT BATT POS VOLT BLK WIRE BRN WIRE COMPUTER DATA LINES SYSTEM DK GRN WIRE DK GRN/WHT WIRE GMLAN SERIAL DATA HOT AT ALL TIMES IGNITION SWITCH INSTRUMENT PANEL CLUSTER (IPC) LO SPD GMLAN SERIAL DATA LOGIC OFF ORG/ WIRE ORG/PNK WIRE PASSKEY FUSE 13 PNK PNK WIRE PNK WIRE POWER DISTRIBUTION SYSTEM REAR FUSE BLOCK (UNDER LEFT REAR SEAT) RUN WIRE SECURITY IND SW-IGN FUSE 21 THEFT DETERRENT MODULE (TDM) (TOP RIGHT SIDE OF STEERING COLUMN) YEL WIRE