Cadillac DTS I (2005-2011) (under left side of rear seat) Wiring diagrams

12 VOLT REF 14 15 RR DR AJAR SW SIG LR DR AJAR SW SIG 15 10 COURTESY LP RLY COURTESY LP SPLY ACCENT LAMPS LED CIRCUIT BOARD (IF EQUIPPED) BATT POS VOLT BCM (CTSY) FUSE 35 BCM (INADV) FUSE 32 BLK WIRE BLK/GRY WIRE BLK/WHT WIRE BLU WIRE BODY CONTROL MODULE (BCM) (RIGHT SIDE OF DASH) COMPUTER DATA LINES SYSTEM COURTESY LP CTRL DK BLU WIRE DK GRN WIRE DK GRN/PPL WIRE DK GRN/WHT WIRE DRIVER DOOR SILL PLATE LAMP FRONT PASSENGER DOOR LATCH ASSEMBLY (FRONT PASSENGER'S DOOR.) FRONT PASSENGER DOOR MODULE (FPDM) GMLAN LOW SPEED GRY WIRE GRY/BLK WIRE HOT AT ALL TIMES INSTRUMENT ILLUMINATION CIRCUIT LEFT REAR DOOR COURTESY LAMP LEFT REAR DOOR SILL PLATE LAMP LO SPD GMLAN SERIAL DATA LT BLU WIRE LT BLU/BLK WIRE LT DK LT GRN WIRE LT GRN/BLK WIRE ORG/ WIRE ORG/WHT WIRE PASSENGER DOOR SILL PLATE LAMP PNK WIRE PPL REAR FUSE BLOCK (UNDER LEFT REAR SEAT) RED WIRE RED/WHT WIRE RF DOOR AJAR SW SIG RF DOOR SW LOW REF RIGHT FRONT DOOR COURTESY LAMP RIGHT REAR DOOR COURTESY LAMP RIGHT REAR DOOR SILL PLATE LAMP TAN WIRE TAN/PNK WIRE TAN/WHT WIRE YEL WIRE

3 7 LOW REFERENCE SUPPLY VOLTAGE 3 7 LOW REFERENCE SUPPLY VOLTAGE PPL BLK WIRE COMPUTER DATA LINES SYSTEM DK GRN WIRE DK GRN/YEL WIRE DRIVER DOOR MODULE (DDM) DRIVER OUTSIDE REARVIEW MIRROR (DRIVER'S DOOR) FRONT PASSENGER DOOR MODULE (FPDM) GRY/LT GRN WIRE HEATED MIRROR ELEMENT HOT AT ALL TIMES HVAC CONTROL MODULE (CENTER OF DASH) LEFT "C" PILLAR) LOGIC LOW SPEED GMLAN SERIAL DATA NCA WIRE ORG/ WIRE PASSENGER OUTSIDE REARVIEW MIRROR (FRONT PASSENGER DOOR) HEATED MIRROR ELEMENT PPL REAR DEFOG RLY CTRL REAR DEFOGGER INDICATOR REAR DEFOGGER SWITCH REAR FUSE BLOCK (UNDER LEFT REAR SEAT) REAR WINDOW DEFOGGER RR DEFOG FUSE 46 RR DEFOG RELAY 52 TAN/PNK WIRE WHT 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

AJAR AJAR OPEN BLK WIRE BLU WIRE DK BLU/WHT WIRE DK LT GRN WIRE GRY WIRE HOT AT ALL TIMES UNLOCK/LOCK FUSE 14 LEFT REAR DOOR LATCH ASSEMBLY (REAR OF LEFT REAR DOOR) LOCK RELAY 63 LT BLU WIRE LT BLU/BLK WIRE LT BLU/WHT WIRE LT GRN/BLK WIRE REAR FUSE BLOCK (UNDER LEFT REAR SEAT) RIGHT REAR DOOR LATCH ASSEMBLY (REAR OF RIGHT REAR DOOR) TAN WIRE UNLOCK RELAY 62 WHT WIRE

12 8 TRUNK AJAR SW SIG OPEN SW SIG 14 15 16 RR DR AJAR SW SIG LR DR AJAR SW SIG DR OPEN SW SIG 19 18 24 PARK ENABLE SIG HORN RLY CTRL PARK LP RLY CTRL 22 7 9 GMLAN SERIAL DATA DR LK MTR LK CTRL DR LK MTR UNLK CTRL 6 4 GND BATT POS VOLT AJAR OPEN AJAR SW SIG ANTENNA (IF EQUIPPED) (LEFT OF REAR WINDOW) ANTENNA SIG GND BATT POS VOLT BLK WIRE BLU WIRE BODY CONTROL MODULE (BCM) (RIGHT SIDE OF DASH) BRN WIRE COAX COMPUTER DATA LINES SYSTEM DDM FUSE 22 DK BLU WIRE DK BLU/BLK WIRE DK BLU/WHT WIRE DK GRN WIRE DK GRN/WHT WIRE DK LT DRIVER DOOR LATCH ASSEMBLY (REAR OF DRIVER'S DOOR) DRIVER DOOR LOCK SWITCH DRIVER DOOR MODULE (DDM) FRONT PASSENGER DOOR LATCH ASSEMBLY (FRONT PASSENGER'S DOOR.) FRONT PASSENGER DOOR MODULE (FPDM) GMLAN SERIAL DATA GMLAN SERIAL DATA B+ GRN WIRE GRY WIRE GRY/BLK WIRE HOOD AJAR SWITCH (AT HOOD LATCH ASSEMBLY) HOOD CLOSED SW SIG HORNS SYSTEM EXTERIOR LIGHTS SYSTEM HOT AT ALL TIMES INSTRUMENT PANEL CLUSTER (IPC) KEYLESS ENTRY/ TIRE PRESSURE LEFT "C" PILLAR) LOGIC LT BLU WIRE LT BLU/BLK WIRE LT BLU/WHT WIRE LT GRN WIRE LT GRN/BLK WIRE LT GRN/ORG WIRE LT GRN/RED WIRE MDLS-BODY FUSE 43 NCA WIRE ORG/ WIRE ORG/GRY WIRE PDM FUSE 29 PNK WIRE PNK/BLK WIRE PNK/VIO WIRE PPL/ORG WIRE REAR FUSE BLOCK (UNDER LEFT BCM REAR SEAT) (CHMSL) FUSE 39 RED WIRE REMOTE CONTROL DOOR LOCK RECEIVER (RCDLR) (UNDER CENTER OF REAR PACKAGE TRAY) RIGHT MIDDLE DOOR LATCH ASSEMBLY (LIMOUSINE) (RIGHT MIDDLE DOOR TRIM PANEL) SEAT) SECURITY IND STOP LP RLY COIL SPLY VOLT TAN WIRE TAN/DK GRN WIRE TAN/RED WIRE TAN/WHT WIRE UPFITTER PROVISION (HEARSE) VIO WIRE WHT WIRE YEL WIRE YEL/VIO WIRE

ACTUATOR AJAR OPEN BLK WIRE BLU WIRE BRN WIRE DK BLU WIRE DK BLU/WHT WIRE DK LT DR UNLATCH RELAY 66 (LIMOUSINE) GRN WIRE GRY WIRE HOT AT ALL TIMES HOT AT ALL TIMES DR UNLATCH FUSE 45 (LIMOUSINE) HOT AT ALL TIMES UNLOCK/LOCK FUSE 14 LEFT MIDDLE DOOR LATCH LEFT MIDDLE DOOR LATCH ASSEMBLY (LIMOUSINE) (LEFT MIDDLE DOOR TRIM PANEL) LEFT REAR DOOR LATCH LEFT REAR DOOR LATCH ASSEMBLY (REAR OF LEFT REAR DOOR) LIFTGATE DOOR LATCH (HEARSE) LOCK RELAY LT BLU WIRE LT BLU/BLK WIRE LT BLU/WHT WIRE LT GRN/BLK WIRE PWR WDO CIRCUIT BREAKER 56 REAR FUSE BLOCK (UNDER LEFT REAR SEAT) RED WIRE RED/BRN WIRE RELAY RELAY RIGHT MIDDLE DOOR PARK RELAY ASSEMBLY (LIMOUSINE) RIGHT MIDDLE DOOR LATCH RIGHT REAR DOOR LATCH RIGHT REAR DOOR LATCH ASSEMBLY (RIGHT REAR DOOR) TAN WIRE UNLOCK RELAY WHT WIRE WHT/BLK WIRE YEL WIRE

BLK WIRE BLUNT CUT) CENTER HIGH MOUNTED STOP LAMP (CHMSL) FUEL PUMP RELAY 59 LEFT LEFT MIDDLE MIDDLE DOOR COURTESY WINDOW LAMP SWITCH LEFT LEFT MIDDLE MIDDLE PARK DOOR LAMP LATCH LEFT MIDDLE DOOR PARK RELAY LEFT MIDDLE DOOR PARK RELAY ASSEMBLY) LEFT MIDDLE WINDOW MOTOR LEFT REAR DOOR LATCH LEFT REAR WINDOW MOTOR LIC LP RELAY 60 LIMOUSINE LOCK RELAY 63 MIDDLE DOOR COURTESY LAMP) RAP-HC RELAY 70 REAR ACCESSORY POWER OUTLET RELAY 64 REMOTE CONTROL DOOR LOCK RECEIVER (RCDLR) RIGHT LEFT REAR REAR DOOR WINDOW COURTESY SWITCH LAMP RUN WIRE STOP LP RELAY 68 TRK REL RELAY 67 UNLOCK RELAY 62

14 15 RR DR AJAR SW SIG LR DR AJAR SW SIG 33 53 65 GMLAN SERIAL DATA- GMLAN SERIAL DATA+ OIL PRESS SW SIG 5060 1178 746 COMPUTER DATA LINES SYSTEM 9 44 LOW REF FUEL LEVEL 9 5 13 GMLAN SERIAL DATA LOW REF DOOR AJAR SW SIG AJAR BLK WIRE BLK/WHT WIRE BLU WIRE BODY CONTROL MODULE (BCM) (RIGHT SIDE OF DASH) BRAKE FLUID LEVEL SWITCH (IN MASTER CYLINDER RESERVOIR) BRN WIRE COMPUTER DATA LINES SYSTEM DK GRN WIRE DK GRN/WHT WIRE DRIVER DOOR LATCH ASSEMBLY (REAR OF DRIVER'S DOOR) DRIVER DOOR MODULE (DDM) DRIVER INFORMATION DISPLAY SWITCH ENGINE CONTROL MODULE (ECM) (LEFT SIDE OF ENGINE COMPT) ENGINE CONTROLS SYSTEM ENGINE OIL PRESSURE (EOP) SWITCH (LEFT SIDE OF ENGINE, ON OIL FILTER ADAPTER) FRONT PASSENGER DOOR LATCH ASSEMBLY (FRONT PASSENGER'S DOOR.) FRONT PASSENGER DOOR MODULE (FPDM) FUEL PUMP/ SENDER ASSEMBLY (IN FUEL TANK) GMLAN SERIAL DATA GRN WIRE GRY WIRE GRY/BLK WIRE LEFT MIDDLE DOOR LATCH ASSEMBLY (LIMOUSINE) (LEFT MIDDLE DOOR TRIM PANEL) LEFT REAR DOOR LATCH ASSEMBLY (REAR OF LEFT REAR DOOR) LOGIC LOW REF DOOR AJAR SW SIG GMLAN SERIAL DATA LT BLU WIRE LT BLU/BLK WIRE LT BLU/WHT WIRE LT GRN/BLK WIRE PARK BRAKE SW SIG PARK BRAKE SWITCH (ON PARK BRAKE PEDAL) PERSONA- LIZATION PNK WIRE PPL PPL/BLK WIRE RIGHT MIDDLE DOOR LATCH ASSEMBLY (LIMOUSINE) (RIGHT MIDDLE DOOR TRIM PANEL) RIGHT REAR DOOR LATCH ASSEMBLY (RIGHT REAR DOOR) SET/ RESET TAN WIRE TAN/BLK WIRE TAN/WHT WIRE TRIP/ FUEL VEHICLE INFORMATION WHT WIRE YEL WIRE YEL/DK GRN WIRE

5 6 7 PPL AIR PUMP RELAY CTRL BLK WIRE BLK/WHT WIRE BRN/WHT WIRE COOLING FANS SYSTEM CTRL BANK 2 SENS 1 CYCLE SIG DK GRN WIRE DK GRN/WHT WIRE ECM/TCM FUSE 5 ENGINE CONTROL MODULE (ECM) (LEFT SIDE OF ENGINE COMPARTMENT, EVAP CNSTR PURGE F/PMP FUSE 1 FAN RLY CTRL FUEL PUMP RELAY GENERATOR FIELD DUTY GENERATOR TURN ON SIG GRY WIRE GRY/BLK WIRE GRY/ORG WIRE GRY/WHT WIRE HOT AT ALL TIMES LO SPD COOLING LOW REFERENCE LT BLU WIRE LT GRN WIRE LT GRN/WHT WIRE ORG/ WIRE ORG/BLK WIRE ORG/WHT WIRE PARK/NEUTRAL SIG PNK 1 2 WIRE PNK 2 3 4 WIRE PNK WIRE PNK/BLK WIRE PPL PPL/BLK WIRE PPL/WHT WIRE REAR FUSE BLOCK (UNDER LEFT REAR SEAT) RED/WHT WIRE REF BANK 2 SENS 1 REVERSE LKOUT SOL CTRL SERIAL DATA BUS- SOL CAN FUSE 34 SOL CTRL STARTING/ CHARGING SYSTEM SUSPENSION CONTROL MODULE TAN WIRE TAN/WHT WIRE TRANSMISSIONS SYSTEM VOLT BANK 2 SENS 1 WHT/BLK WIRE WHT/GRY WIRE YEL/DK GRN WIRE

5 6 7 PPL AIR PUMP RELAY CTRL BLK WIRE BLK/WHT WIRE BRN/WHT WIRE COOLING FANS SYSTEM CTRL BANK 2 SENS 1 CYCLE SIG DK GRN WIRE DK GRN/WHT WIRE ECM/TCM FUSE 5 ENGINE CONTROL MODULE (ECM) (LEFT SIDE OF ENGINE COMPARTMENT, EVAP CNSTR PURGE F/PMP FUSE 1 FAN RLY CTRL FUEL PUMP RELAY GENERATOR FIELD DUTY GENERATOR TURN ON SIG GRY WIRE GRY/BLK WIRE GRY/ORG WIRE GRY/WHT WIRE HOT AT ALL TIMES LO SPD COOLING LOW REFERENCE LT BLU WIRE LT GRN WIRE LT GRN/WHT WIRE ORG/ WIRE ORG/BLK WIRE ORG/WHT WIRE PARK/NEUTRAL SIG PNK 1 2 WIRE PNK 2 3 4 WIRE PNK WIRE PNK/BLK WIRE PPL PPL/BLK WIRE PPL/WHT WIRE REAR FUSE BLOCK (UNDER LEFT REAR SEAT) RED/WHT WIRE REF BANK 2 SENS 1 REVERSE LKOUT SOL CTRL SERIAL DATA BUS- SOL CAN FUSE 34 SOL CTRL STARTING/ CHARGING SYSTEM SUSPENSION CONTROL MODULE TAN WIRE TAN/WHT WIRE TRANSMISSIONS SYSTEM VOLT BANK 2 SENS 1 WHT/BLK WIRE WHT/GRY WIRE YEL/DK GRN WIRE