Cadillac STS I facelift (2007-2011) left rear fuse block (under left side of rear seat) Wiring diagrams

ABS IND. BLK WIRE BLK/WHT WIRE BRAKE FLUID LEVEL SWITCH (IN MASTER CYLINDER RESERVOIR) BRAKE IND BRN WIRE CAN BUS CAN BUS HIGH LOW CAN BUS IGN CAN BUS HIGH LOW COMPUTER DATA LINES SYSTEM DK GRN WIRE DRIVER INFORMATION CENTER (DIC) DISPLAY GRN WIRE HOT AT ALL TIMES HOT W/ RUN RELAY ENERGIZED IGN INSTRUMENT PANEL CLUSTER (IPC) J/C LEFT FRONT WHEEL SPEED SENSOR (WSS) (BEHIND LEFT FRONT BRAKE ROTOR) LEFT REAR FUSE BLOCK (UNDER LEFT SIDE OF REAR SEAT) LEFT REAR WHEEL SPEED SENSOR (WSS) (BEHIND LEFT REAR BRAKE ROTOR) LOGIC LT BLU WIRE LT GRN WIRE LT GRN/BLK WIRE ORG/ WIRE PNK 4 3 2 1 IGN 1 VOLT CAN BUS HIGH CAN BUS LOW GND WIRE PNK 9 10 WIRE PNK LT WIRE PNK PNK WIRE PNK WIRE POWER STEERING CONTROL MODULE (PSCM) (LEFT SIDE OF DASH, ABOVE PARK BRAKE PEDAL) PPL RED/WHT WIRE RIGHT FRONT WHEEL SPEED SENSOR (WSS) (BEHIND RIGHT FRONT BRAKE ROTOR) RIGHT REAR WHEEL SPEED SENSOR (WSS) (BEHIND RIGHT REAR BRAKE ROTOR) RIM/RPA/ISRVM/CLM FUSE SERIAL DATA TAN WIRE TAN/WHT WIRE TRACTION OFF IND TV/VICS/ AFS/SCM FUSE WHT WIRE YAW, LATERAL ACCELEROMETER SENSOR YEL WIRE

AUTOMATIC TRANSMISSION AUTOMATIC TRANSMISSION INTERNAL MODE SWITCH (IMS) BCK/UP LAMP FUSE BCK/UP LAMP RELAY BLK WIRE COMPUTER DATA LINES SYSTEM CONTROL SOLENOID VALVE ASSEMBLY DK GRN WIRE GRN WIRE GRY WIRE HOT AT ALL TIMES J/C LEFT BACKUP LAMP LEFT REAR FUSE BLOCK (UNDER LEFT SIDE OF REAR SEAT) LO SPD GMLAN SER DATA LT GRN WIRE REAR INTEGRATION MODULE (RIM) (IN LEFT SIDE OF REAR COMPT, UNDER REAR SHELF) RED WIRE REVERSE RLY CTRL RIGHT BACKUP LAMP TAN WIRE TAN/BLK WIRE TRANSMISSION CONTROL MODULE (TCM)

1 2 5 LFT MIR MTR DN CTRL LFT MIR MTR UP/RT CTRL LFT MIR MTR LFT CTRL BAT POS VOLTAGE BLK WIRE BLK/WHT WIRE BLU WIRE COMPUTER DATA LINES SYSTEM DDM FUSE DK GRN WIRE DK GRN/BLK WIRE DRIVER DOOR CONTROL MODULE (DDM) DRIVER OUTSIDE REARVIEW MIRROR DRIVER WINDOW SWITCH DRVR VERT POS SENS SIG LOW REF DRVR HORIZ POS SENS SIG FEED GROUND GRY WIRE HORIZ MOTOR HORIZ POS SENSOR HOT AT ALL TIMES INSIDE DRIVER DOOR) LEFT HORIZ HORIZ POS SENS LEFT REAR FUSE BLOCK (UNDER LEFT SIDE OF REAR SEAT) LOGIC LOW SPD GMLAN SERIAL DATA LT BLU WIRE LT BLU/BLK WIRE NAVIGATION SYSTEM PPL PPL/BLK WIRE RED WIRE RED/BLK WIRE RED/WHT WIRE RIGHT HORIZ RTN VERT UP VERT DOWN VERT MOTOR VERT POS SENS VERT POS SENSOR W/ INFOTAINMENT SYSTEM 010 WHT WIRE YEL WIRE

1 2 3 4 5 6 7 8 9 10 11 12 13 14 15 16 PNK IGN WIRE 1 2 3 4 5 6 7 8 9 10 11 12 13 14 BATT POSITIVE VOLT 1 2 GND BATT POSITIVE VOLT ACTR FRT ACTIVE SIG MTR W ACTR FRT ACTIVE SIG U GND ACTR FRT ACTIVE SIG W ACTR FRT ACTIVE SIG V ACTR FRT ACTIVE SIG GND ACTR FRT ACTIVE SIG V ACTR FRT ACTIVE SIG MTR U BLK WIRE BLK/WHT WIRE BLU WIRE BRN WIRE CAN BUS HIGH SERIAL DATA CAN BUS LOW SERIAL DATA SERIAL DATA + SERIAL DATA - COMPUTER DATA LINES SYSTEM ELECTRONIC BRAKE CONTROL MODULE (EBCM) (RIGHT FRONT CORNER OF ENGINE COMPT) GRN WIRE GRN/RED WIRE GRY WIRE HOT AT ALL TIMES AFS FUSE FUSE BLOCK (RIGHT FRONT SIDE OF ENGINE COMPT) HOT W/ RUN RELAY ENERGIZED IGN 3 FUSE J/C LEFT REAR FUSE BLOCK (UNDER LEFT SIDE OF REAR SEAT) LT GRN WIRE LT GRN/BLK WIRE PNK WIRE POWER STEERING CONTROL MODULE (PSCM) (LEFT SIDE OF DASH, ABOVE PARK BRAKE PEDAL) RED WIRE RED/BLK WIRE RED/WHT WIRE SERIAL DATA WAKEUP STEERING ANGLE SENSOR TAN WIRE TAN/BLK WIRE TAN/WHT WIRE UNDERHOOD UPPER INTERMEDIATE STEERING SHAFT WHT WIRE YEL WIRE

AUTOMATIC LEVEL ELEC RELAY CTRL BLK WIRE BRN WIRE COMPUTER DATA LINES SYSTEM COMPUTER DATA LINES SYSTEM 2500 1206 COMPUTER DATA LINES SYSTEM 2500 1212 DATA SIGNAL BATTERY VOLTAGE DK GRN WIRE DRIVER INFORMATION CENTER (DIC) DISPLAY EKM/I/P MDL FUSE ELC CMPRSR FUSE ELC CMPRSR RELAY ELECTRONIC SUSPENSION CONTROL (ESC) MODULE (BELOW RIGHT "C" PILLAR) GMLAN SER DATA - GMLAN SER DATA + SENSOR LOW REF RR DAMPING INCREASE GMLAN SER DATA - GMLAN SER DATA + SENSOR LOW REF SENSOR LOW REF GRN WIRE GRY WIRE HIGH SERIAL DATA LO SERIAL DATA HOT AT ALL TIMES HOT W/ RUN RELAY ENERGIZED IPC CLASS 2 LEFT FRONT SHOCK ABSORBER ACTUATOR (TOP OF LEFT FRONT STRUT TOWER) LEFT FRONT SUSPENSION POSITION SENSOR (NEAR LEFT FRONT STRUT) LEFT REAR FUSE BLOCK (UNDER LEFT SIDE OF REAR SEAT) LEFT REAR SHOCK ABSORBER ACTUATOR (TOP OF LEFT REAR STRUT TOWER) LEFT REAR SUSPENSION POSITION SENSOR (NEAR LEFT REAR STRUT) LF POSITION SENS RF POSITION SENS RR POSITION SENS LF SENS VOL REF RF SENS VOL REF LR SENS VOL REF RR SENS VOL REF LOGIC INSTRUMENT PANEL CLUSTER (IPC) LR DAMPING CTRL LR DAMPING CTRL RF RAID CTRL LF DAMPING CTRL LR POSITION SENS LT BLU/BLK WIRE LT GRN WIRE LT GRN/BLK WIRE LT GRN/WHT WIRE MRTD MDL FUSE ELC EXH FUSE NCA WIRE ORG/ WIRE ORG/BLK WIRE PPL PPL RR DAMPING DECREASE RF DAMPING CTRL LF DAMPING INCREASE GROUND PPL/WHT WIRE RED WIRE RED/BLK WIRE RED/WHT WIRE RIGHT FRONT SHOCK ABSORBER ACTUATOR (TOP OF RIGHT FRONT STRUT TOWER) RIGHT FRONT SUSPENSION POSITION SENSOR (NEAR RIGHT FRONT STRUT) RIGHT REAR SHOCK ABSORBER ACTUATOR (TOP OF RIGHT REAR STRUT TOWER) RIGHT REAR SUSPENSION POSITION SENSOR (NEAR RIGHT REAR STRUT) SENSOR LOW REF TAN WIRE TAN/BLK WIRE TAN/WHT WIRE UNDERHOOD FUSE BLOCK (RIGHT FRONT SIDE OF ENGINE COMPT) WHT WIRE WHT/BLK WIRE YEL WIRE

BAT POS VOLTAGE BLK/WHT WIRE COMPUTER DATA LINES SYSTEM DK BLU WIRE DK GRN WIRE DRIVER SEAT ADJUSTER MOTOR ASSEMBLY (UNDER DRIVER DRIVER SEAT LUMBAR MOTOR ASSEMBLY DRIVER SEAT RECLINE MOTOR ASSEMBLY (UNDER DRIVER SEAT) GND (IN PASSENGER COMPT, TO LEFT OF DRIVER SEAT, ON LEFT FRAME RAIL) GRY WIRE HOT AT ALL TIMES HUD FUSE INSTRUMENT PANEL MODULE (IPM) (RIGHT SIDE OF DASH, BEHIND GLOVE BOX) LEFT REAR FUSE BLOCK (UNDER LEFT SIDE OF REAR SEAT) LOW SPD GMLAN SERIAL DATA LT BLU WIRE MEMORY SEAT MODULE (MSM) (UNDER DRIVER SEAT) ORG/ WIRE ORG/WHT WIRE PNK WIRE POWER DISTRIBUTION SYSTEM PWR SEATS CIRCUIT BREAKER RED WIRE RED/WHT WIRE SEAT CUSHION) STEERING COLUMN TELESCOPE ACTUATOR STEERING WHEEL TILT ACTUATOR (IN STEERING COLUMN) STEERING WHEEL/ COLUMN TILT/ TELESCOPE SWITCH TAN WIRE TELESCOPE IN TELESCOPE OUT TILT DOWN TILT UP UNDERHOOD FUSE BLOCK (RIGHT FRONT SIDE OF ENGINE COMPT) WHT WIRE YEL WIRE

BATTERY POSITIVE VOLTAGE BLK WIRE BLK/WHT WIRE BRN/WHT WIRE COMPUTER DATA LINES SYSTEM DK BLU WIRE DK GRN WIRE DRIVER SEAT ADJUSTER SWITCH FOR- WARD DOWN FRONT VERTICAL DOWN FRT VERT UP SW SIG FRT VERT DN SW SIG DRV ST LUMBAR UP SW SIG GND BAT POS VOLTAGE GRY WIRE HORIZONTAL FORWARD HORIZONTAL REARWARD RECLINE FORWARD HOT AT ALL TIMES LEFT REAR FUSE BLOCK (UNDER LEFT SIDE OF REAR SEAT) LT BLU WIRE LT GRN WIRE MEMORY POWER TILT, POWER TELESCOPIC CIRCUIT MEMORY SEAT MODULE (UNDER DRIVER SEAT) MSM FUSE ORG/ WIRE ORG/WHT WIRE PNK DRV PWR SEAT LUMBAR MTR RWD CTRL WIRE PNK WIRE PWR SEATS CIRCUIT BREAKER REAR VERTICAL DOWN REAR VERTICAL UP FRONT VERTICAL UP REAR- WARD RECLINE REARWARD RED/WHT WIRE STEERING COLUMN TELE MTR FWD DRV PWR SEAT FRT VERT MTR DN CTRL STEERING COLUMN TILT MTR SIG MEM SEAT/MIRROR SENS LOW REF GND TAN WIRE W/ FRONT HEATED SEATS WHT WIRE WHT/BLK WIRE YEL WIRE YEL/BLK WIRE

1 3 2 SENSOR SIGNAL SUPPLY VOLTAGE LOW REFERENCE 2 3 1 LOW REFERENCE SUPPLY VOLTAGE SENSOR SIGNAL 2 3 4 5 6 BATT POSITIVE VOLT SERIAL DATA SERIAL DATA GND GND 24 2525 BACKUP LAMP FEED REAR PARKING DIAGNOSTIC SIG 4 2 5 SERIAL DATA BATT POSITIVE VOLT GND 850 1339 GROUND IGN 1 VOLTAGE PNK WIRE BCK/UP LAMP FUSE BCK/UP LAMP RELAY BLK WIRE BRN WIRE CENTER AMBER IND CENTER AMBER IND CTRL LEFT AMBER IND CTRL COMPUTER DATA LINES SYSTEM DK BLU WIRE DK GRN WIRE DRIVER DOOR CONTROL MODULE (INSIDE DRIVER'S DOOR) DRIVER OUTSIDE REARVIEW MIRROR FASCIA) GRY WIRE GRY/BLK WIRE HOT AT ALL TIMES HOT W/ RUN/CRNK RELAY ENERGIZED IND J/C LED SIG LEFT AMBER IND LEFT REAR CORNER OBJECT ALARM SENSOR (ON LEFT REAR CORNER OF REAR LEFT REAR FUSE BLOCK (UNDER LEFT SIDE OF REAR SEAT) LEFT REAR MIDDLE OBJECT ALARM SENSOR (ON LEFT REAR MIDDLE OF REAR FASCIA) LEFT SIDE OBJECT SENSOR (ON LEFT REAR OF VEHICLE) LT BLU WIRE LT GRN WIRE MIDDLE OBJECT SENSOR CONNECTOR) NAVIGATION CIRCUIT ORG/ WIRE PASSENGER DOOR CONTROL MODULE (INSIDE PASSENGER'S DOOR) PASSENGER OUTSIDE REARVIEW MIRROR PNK WIRE PPL REAR INTEGRATION MODULE (RIM) (IN LEFT SIDE OF REAR COMPT, UNDER REAR SHELF) REAR OBJECT SENSOR CONTROL MODULE REAR PARKING ASSIST (RPA) DISPLAY REAR PARKING ASSIST CHIME SIG RED IND CTRL WIRE RED WIRE RED/WHT WIRE REVERSE RELAY COIL FEED RIGHT REAR CORNER OBJECT ALARM SENSOR (ON RIGHT REAR CORNER OF REAR FASCIA) RIGHT REAR FUSE BLOCK RIGHT REAR MIDDLE OBJECT ALARM SENSOR (ON RIGHT REAR MIDDLE OF REAR FASCIA) RIGHT SIDE OBJECT SENSOR (ON LEFT REAR OF VEHICLE) RIM/RPA/ ISRVM/CLM FUSE RT TRN/ SBZA FUSE SERIAL DATA VEHICLE SPEED SIG WHT WIRE YEL WIRE

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 5060 640 351 COMPUTER DATA LINES SYSTEM BAT POS VOLTAGE BLK WIRE BLK/WHT WIRE COMPUTER DATA LINES SYSTEM DDM FUSE DK BLU WIRE DK GRN WIRE DK GRN/BLK WIRE DRIVER DOOR CONTROL MODULE (INSIDE DRIVER'S DOOR) DRIVER WINDOW SWITCH FEED FRT PDM FUSE GROUND GRY WIRE HORIZ MOTOR HORIZ POS SENSOR HOT AT ALL TIMES LEFT HORIZ HORIZ POS SENS LEFT REAR FUSE BLOCK (UNDER LEFT SIDE OF REAR SEAT) LOGIC LOW SPD GMLAN SERIAL DATA LT BLU WIRE LT BLU/BLK WIRE NAVIGATION SYSTEM PASS VERT POS SENS SIG LOW REF PASS HORIZ POS SENS SIG PASSENGER DOOR CONTROL MODULE (INSIDE PASSENGER'S DOOR) PASSENGER OUTSIDE REARVIEW MIRROR PPL PPL/BLK WIRE RED WIRE RED/BLK WIRE RED/WHT WIRE RIGHT HORIZ RIGHT REAR FUSE BLOCK (UNDER RIGHT SIDE OF REAR SEAT) RTN VERT DOWN VERT MOTOR VERT POS SENS VERT POS SENSOR VERT UP W/ INFOTAINMENT SYSTEM 010 WHT WIRE YEL WIRE

ACCELERATOR PEDAL POSITION (APP) SENSOR (ATTACHED TO TOP OF ACCELERATOR PEDAL) BANK 1 SENSOR 1 CONNECTOR) BANK 1 SENSOR 2 (ON RIGHT EXHAUST PIPE, AFTER CATALYTIC CONVERTER) BANK 2 SENSOR 2 (ON LEFT EXHAUST PIPE, AFTER CATALYTIC CONVERTER) BLK WIRE BRN WIRE BRN/WHT WIRE COMPUTER DATA LINES SYSTEM DK BLU WIRE DK GRN WIRE DK GRN/WHT WIRE GRY WIRE GRY/WHT WIRE HEATED OXYGEN HOT AT ALL TIMES IGN DATA INCLR PUMP FUSE INCLR PUMP RELAY INSTRUMENT PANEL CLUSTER (IPC) LEFT REAR FUSE BLOCK (UNDER LEFT SIDE OF REAR SEAT) LOGIC LT BLU WIRE LT GRN WIRE MALFUNCTION INDICATOR LAMP NCA WIRE ORG/WHT WIRE PNK WIRE PNK/BLK WIRE PPL PPL/WHT WIRE RED/WHT WIRE TAN WIRE TAN/WHT WIRE WHT WIRE WHT/BLK WIRE YEL/BLK WIRE