Cadillac CTS I (2002-2007) (rear of left rear shock tower Wiring diagrams

A/T ABS IND. B+ LOGIC LOGIC BAS FUSE BASE RELAY BLK WIRE BLK/WHT WIRE BLU WIRE BRAKE FLUID LEVEL SWITCH (ON BRAKE FLUID RESERVOIR) BRAKE FLUID PRESSURE SENSOR (5.7L) (ON REAR OF BRAKE PRESSURE MODULATOR VALVE) BRAKE IND BRANCHES FROM THE LT MAIN HARNESS) BRANCHES FROM THE MAIN HARNESS) (W/ ACTIVE BRAKE CONTROL) BRN WIRE BRN/WHT WIRE COMPUTER DATA LINES SYSTEM DK BLU WIRE DK GRN WIRE ELECTRONIC PRNDL (EXCEPT 5.7L) GRN WIRE GROUND GRY WIRE GRY/BLK WIRE HOT AT ALL TIMES INSTRUMENT PANEL CLUSTER (IPC) JOINT CONNECTOR LATERAL ACCELEROMETER SIG YAW RATE SENS SIGNAL LOW REFERENCE LEFT FRONT WHEEL SPEED SENSOR (WSS) LEFT REAR FUSE BLOCK (BELOW LEFT REAR SEAT) LOGIC LOGIC B+ LT BLU WIRE LT GRN WIRE LT GRN/BLK WIRE LT LT ORG/ WIRE PARK BRAKE SWITCH (ON PARK BRAKE ASSEMBLY) PPL PPL PPL 1807 1807 CLASS 2 SERIAL DATA CLASS 2 SERIAL DATA PPL PPL 9 25 11 27 3 REAR INTEGRATION MODULE (UNDER PACKAGE SHELF TRIM PANEL) RED/WHT WIRE SPEED SENSOR (WSS) SPORT MODE STEERING WHEEL POSITION SENSOR (NEAR MIDDLE OF STEERING COLUMN) TAN WIRE TRACTION CONTROL OFF IND TRACTION CONTROL SWITCH W/ ACTIVE BRAKE CONTROL WHT WIRE WINTER MODE YEL WIRE

BLK WIRE BLK/WHT WIRE CLASS 2 SERIAL DATA DATA LINK CONNECTOR (UNDER LEFT SIDE OF DASH) DOOR OPEN ENGINE CONTROL MODULE (ECM) (3.6L (VIN 7): FRONT OF RIGHT VALVE COVER) FRONT PASSENGER DOOR LATCH ASSEMBLY FRONT PASSENGER DOOR MODULE (ON RIGHT FRONT DOOR, UNDER DOOR TRIM PANEL) GROUND HVAC CONTROL MODULE (BEHIND CENTER OF DASH, BELOW RADIO) IGN INSTRUMENT PANEL CLUSTER (IPC) LOGIC LT GRN WIRE ORG/BLK WIRE POWERTRAIN CONTROL MODULE PPL PPL 5.7L 2.8L/3.6L PPL CLASS 2 SERIAL DATA PPL CLASS 2 SERIAL DATA DOOR OPEN SW SIG PPL PPL PPL PPL 1807 1807 CLASS 2 SERIAL DATA CLASS 2 SERIAL DATA PPL PPL 58 59 1807 1807 CLASS 2 SERIAL DATA CLASS 2 SERIAL DATA PPL PPL 8 11 CLASS 2 SERIAL DATA CLASS 2 SERIAL DATA PPL PPL PPL 1 2 3 4 5 6 7 PPL PPL PPL 6 1 2 PPL PPL PPL PPL 25 24 23 26 RADIO REAR COMPARTMENT LID RELEASE ACTUATOR (CENTER OF REAR COMPARTMENT LID) RIGHT REAR FUSE BLOCK SECURITY INDICATOR TAN/WHT WIRE TRUNK AJAR SWITCH SIGNAL TRUNK RELEASE MOTOR SUPPLY VOLTAGE

3.6L 646 1807 PPL 771 772 2501 2500 36 24 21 20 SIG B SIG C BUS - BUS + AUTOMATIC TRANSMISSION BACKUP LAMP SUPPLY VOLTAGE BACKUP LAMP SWITCH (M/T) BACKUP SW SIG BLK WIRE BLK/WHT WIRE BRN WIRE COMPUTER DATA LINES SYSTEM DK GRN WIRE HOT AT ALL TIMES INSIDE REARVIEW MIRROR (ISRVM) LEFT BACK-UP LAMP RIGHT BACK-UP LAMP LEFT REAR FUSE BLOCK (BELOW LEFT REAR SEAT) LICENSE LAMP ASSEMBLY LT GRN WIRE REAR INTEGRATION MODULE (UNDER PACKAGE SHELF TRIM PANEL) RELAY CONTROL SERIAL DATA REV LAMP RELAY REVERSE LAMP FUSE SIG SIG A TAN/WHT WIRE TRANSMISSION CONTROL MODULE (TCM) (A/T) (AT RIGHT FRONT OF ENGINE COMPT) TRANSMISSION INTERNAL MODE SWITCH (IMS) WHT WIRE YEL WIRE

BLK WIRE CLASS 2 SERIAL DATA COMPUTER DATA LINES SYSTEM COURTESY LAMP SWITCH COURTESY LPS ON SIGNAL DIM/ ALDL FUSE DK BLU WIRE DK BLU/WHT WIRE DK GRN WIRE DRIVER DOOR LATCH ASSEMBLY DRIVER DOOR MODULE (ON LEFT DOOR, UNDER DOOR TRIM) CLASS 2 SERIAL DATA DRIVER DOOR OPEN SW SIG FRONT PASSENGER DOOR LATCH ASSEMBLY FRONT PASSENGER DOOR SW SIG GROUND GRY WIRE HOT AT ALL TIMES I/P LAMPS DIMMER SWITCH INSTRUMENT ILLUMINATION CIRCUIT LEFT COURTESY/READING LAMP LEFT REAR DOOR LATCH ASSEMBLY LEFT REAR DOOR MODULE (UNDER DOOR TRIM PANEL) LEFT REAR DOOR OPEN SW SIG LT BLU/BLK WIRE LT GRN WIRE OVERHEAD CONSOLE PNK/BLK WIRE PPL RED/WHT WIRE RIGHT COURTESY/READING LAMP RIGHT REAR DOOR LATCH ASSEMBLY RIGHT REAR DOOR MODULE RIGHT REAR DOOR OPEN SW SIG TAN WIRE UNDERHOOD FUSE BLOCK (RIGHT FRONT OF ENGINE COMPARTMENT) WHT WIRE YEL WIRE

BLK WIRE COMPUTER DATA LINES SYSTEM COURTESY LP VOLTAGE LID AJAR SW SIGNAL DK BLU WIRE DK BLU/WHT WIRE DRIVER SUNSHADE DRIVER VANITY LAMPS GRY WIRE HOT AT ALL TIMES INTERIOR LAMP FUSE INT LAMP RELAY JOINT CONNECTOR LEFT FOOTWELL COURTESY LAMP LEFT FRONT DOOR COURTESY LAMP NCA WIRE ORG/BLK WIRE PASSENGER SUNSHADE PASSENGER VANITY LAMPS PPL PPL 1807 1807 REAR COMPARTMENT COURTESY LAMP REAR DOME LAMP REAR INTEGRATION MODULE (UNDER PACKAGE SHELF TRIM PANEL) REAR SEAT) RIGHT FOOTWELL COURTESY LAMP RIGHT FRONT DOOR COURTESY LAMP RIGHT REAR FUSE BLOCK (BELOW RIGHT TRUNK DIODE WHT WIRE

1807 1807 COMPUTER DATA LINES SYSTEM AUTO HEAD PARK BAS RLY BPP SIG BLK WIRE BRAKE PEDAL POSITION (BPP) SENSOR (NEAR TOP OF BRAKE PEDAL) BRN WIRE BRN/WHT WIRE CENTER HIGH MOUNTED STOP LAMP (CHMSL) LEFT LICENSE LAMP RIGHT LICENSE LAMP DIMMING FUSE DK BLU WIRE DK BLU/WHT WIRE DK GRN WIRE DRL LOW CTRL HAZARD SW SIG SUPPLY VOLTAGE CTRL PARK LAMP RLY CTRL FLASHER FUSE GRN WIRE HAZARD SWITCH HOT AT ALL TIMES HOT IN RUN OR START IGN 1 RELAY LEFT FRONT TURN SIGNAL/ FOG LAMP ASSEMBLY LEFT FRONT TURN SIGNAL LAMP LICENSE LAMP ASSEMBLY LOW REF LT BLU WIRE LT BLU/WHT WIRE LT GRN/BLK WIRE OFF ORG/ WIRE PARK LAMP RELAY PNK WIRE PNK/ DK WIRE RED WIRE RED/WHT WIRE RIGHT FRONT TURN SIGNAL/ FOG LAMP ASSEMBLY RIGHT FRONT TURN SIGNAL LAMP RIGHT TURN SIGNAL VOLTAGE RIGHT DRL/TURN SUPPLY VOL STRG CTLS FUSE SUPPLY VOLTAGE TO UNDERHOOD FUSE BLOCK (LT PARK FUSE, TURN SIGNAL/ MULTI-FUNCTION SWITCH TURN SIGNAL/HAZARD FLASHER MODULE UNDERHOOD FUSE BLOCK (RIGHT FRONT OF ENGINE COMPT) WHT WIRE YEL WIRE

BAS FUSE BAS RELAY BLK WIRE BLK/WHT WIRE BLU WIRE BRN WIRE BRN/WHT WIRE CLASS 2 (DIM) LIGHTS ON IND CLASS 2 SERIAL DATA COMPUTER DATA LINES SYSTEM DK BLU WIRE DK BLU/WHT WIRE DK DK EARLY PRODUCTION LATE PRODUCTION FROM UNDERHOOD FUSE BLOCK (DIMMING HOT AT ALL TIMES INSTRUMENT PANEL CLUSTER (IPC) JOINT CONNECTOR LEFT FRONT MARKER LAMP LEFT REAR MARKER LAMP LEFT TAIL/ STOP LAMP LEFT REAR TURN SIGNAL LAMP LEFT TAIL LAMP LEFT TAIL LAMP ASSEMBLY LEFT TURN INDICATOR LEFT TURN SIG IND LAMP SUPPLY VOLTAGE LOGIC LT BLU WIRE LT BLU/WHT WIRE LT PARK FUSE (DIAGRAM 1 OF 2) MESSAGE CENTER TURN SIGNAL ON THEFT ATTEMPTED MESSAGE REQUEST NEAR RIGHT HEADLAMP) (ON RIGHT BODY RAIL, NEAR RIGHT HEADLAMP) ORG/ WIRE PPL PPL (IN FORWARD LAMP HARNESS, 40 CM FROM HORN ASSEMBLY) PPL EARLY PRODUCTION PPL LATE PPL PRODUCTION W/ HID PPL LT RADIO RED WIRE RIGHT FRONT MARKER LAMP RIGHT FRONT PARK LAMP RIGHT HEADLAMP (W/O AUTOMATIC HEADLAMPS CONTROL LEVELING SYSTEM) RIGHT REAR MARKER LAMP RIGHT REAR TURN SIGNAL LAMP RIGHT TAIL LAMP RIGHT TAIL LAMP ASSEMBLY RIGHT TAIL/ STOP LAMP RIGHT TURN INDICATOR GROUND RIGHT TURN SIG IND LAMP SUPPLY VOLTAGE RT PARK FUSE TRAILERING (NOT USED) W/ HID W/O HID WHT WIRE

AUDIO AMPLIFIER BAS RELAY BLK WIRE BLUNT CUT) CENTER HIGH MOUNTED STOP LAMP (CHMSL) LEFT BACKUP LAMP RIGHT BACKUP LAMP COIL FUEL PUMP MOTOR RELAY FUEL PUMP, SENDER ASSEMBLY IGN 1 RELAY IGN-3 RELAY INSIDE REARVIEW MIRROR (ISRVM) LEFT REAR FOG LAMP LEFT REAR FUSE BLOCK (BELOW LEFT REAR SEAT) LEFT REAR TAIL LAMP LEFT REAR TAIL/ STOP LAMP LEFT REAR TURN SIGNAL LAMP LEFT TAIL LAMP ASSEMBLY LEFT VANITY LAMPS COURTESY LAMPS LICENSE LAMP ASSEMBLY NCA WIRE OVERHEAD CONSOLE DRIVER SUNSHADE PASSENGER SUNSHADE RADIO REAR COMPARTMENT LID RELEASE ACTUATOR REAR HEADLAMP LEVELING SENSOR REAR INTEGRATION MODULE (RIM) REAR WINDOW DEFOGGER RIGHT LEFT LICENSE LAMP REAR FOG LAMP RIGHT LICENSE LAMP LEFT REAR MARKER LAMP RIGHT REAR MARKER LAMP RIGHT REAR TAIL LAMP RIGHT REAR TAIL/STOP LAMP RIGHT REAR TURN SIGNAL LAMP RIGHT TAIL LAMP ASSEMBLY RIGHT VANITY LAMPS SUNROOF CONTROL SWITCH SUNROOF MODULE W/ ELECTRIC SLIDING SUN ROOF GLASS W/O ELECTRIC SLIDING SUN ROOF GLASS WHT WIRE

1807 1807 COMPUTER DATA LINES SYSTEM 9 8 LED DIMMING SIGNAL AUTO HEAD BATTERY GROUND GROUND BACKLIGHT LAMPS CTRL BATTERY INC DIM BACKLIGHTS LAMP CTRL BLK WIRE BLK/WHT WIRE BRN/WHT WIRE COMPUTER DATA LINES SYSTEM DIM/ ALDL FUSE DIMMING FUSE DK GRN WIRE DRIVER DOOR LOCK SWITCH DRIVER DOOR MODULE (ON LEFT DOOR, UNDER DOOR TRIM) DRIVER DOOR SWITCH ASSEMBLY (DDSA) DRIVER DR MOD FUSE ELECTRONIC PRNDL (A/T) GRN WIRE GROUND HOT AT ALL TIMES I/P DIMMER SWITCH ILLUMINATION LAMP INSTRUMENT PANEL CLUSTER (IPC) JOINT CONNECTOR LED DIMMING SIGNAL LEFT REAR FUSE BLOCK (BELOW LEFT REAR SEAT) LT BLU/BLK WIRE MEMORY PERSONALIZATION FUNCTION SWITCH OVERHEAD CONSOLE PARK LAMP RELAY PARK LP RLY CTRL CONTROL POWER OUTPUT PARK OFF PPL CLASS 2 SERIAL DATA PPL PPL PPL PPL SERIAL DATA SERIAL DATA PPL/WHT WIRE PSGR DR MOD FUSE REAR COMPARTMENT LID RELEASE SWITCH REAR DR MOD FUSE RED WIRE RED/WHT WIRE RIGHT REAR FUSE BLOCK (BELOW RIGHT REAR SEAT SUNROOF CONTROL SWITCH TURN SIGNAL/ MULTI-FUNCTION SWITCH UNDERHOOD FUSE BLOCK (RIGHT FRONT OF ENGINE COMPARTMENT) WHT WIRE YEL WIRE

10 9 5342 5343 NAV VOICE OUT (+) NAV VOICE IN (-) 5152 5149 4 2 MIC OUT RETURN MIC OUT FEED PNK WIRE 7 8 BATTERY GROUND AUDIO AMPLIFIER (LEFT SIDE OF TRUNK) AUDIO FUSE BARE BARE DRAIN WIRE BLK WIRE BLK/WHT WIRE COAXIAL CABLE COMPUTER DATA LINES SYSTEM DRAIN WIRE SIG GPS SIGNAL GRY WIRE HOT AT ALL TIMES INFOTAINMENT SYSTEM INSIDE REARVIEW MIRROR (ISRVM) JOINT CONNECTOR LEFT REAR FUSE BLOCK (BELOW LEFT REAR SEAT) NAVIGATION ANTENNA (RIGHT REAR PACKAGE SHELF) PNK PPL WIRE PNK WIRE PNK/BLK WIRE RADIO RED WIRE RED/WHT WIRE VEHICLE COMMUNICATION SYSTEM W/O VEHICLE COMMUNICATION SYSTEM WHT WIRE YEL WIRE