Cadillac CTS I (2002-2007) lt blu Wiring diagrams

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

6 SPD M/T OTHERS BLK WIRE BRN WIRE BRN/WHT WIRE CLASS 2 (DIM) CLASS 2 SERIAL DATA COMPARTMENT) COMPUTER DATA LINES SYSTEM DK GRN WIRE DK GRN/WHT WIRE FLASH TO PASS SWITCH SIGNAL FOG LAMP FUSE FOG LAMP RELAY FOG LAMP RLY CTRL LO BEAM RLY CONTROL HI BEAM RLY CTRL COIL SPLY VOLT CTRL FRONT FOG LAMP IND FRONT FOG LAMP SWITCH GRY WIRE HEADLAMP RELAY CONTROL HI LOW HIGH BEAM IND HOT AT ALL TIMES HOT IN RUN OR START HVAC CONTROL MODULE (BEHIND CENTER OF DASH, BELOW RADIO) INSTRUMENT PANEL CLUSTER (IPC) LEFT FRONT FOG LAMP LEFT FRONT TURN SIGNAL/ FOG LAMP ASSEMBLY LOGIC LT BLU WIRE LT BLU/BLK WIRE M/T NCA WIRE ORG/ WIRE OTHERS 6 SPD M/T PARK HEAD HEAD OFF AUTO AUTO PARK OFF PNK WIRE PNK/WHT WIRE PPL PPL PPL RIGHT FRONT FOG LAMP RIGHT FRONT TURN SIGNAL/ FOG LAMP ASSEMBLY SUNLOAD SENSOR (TOP CENTER OF I/P, ON DEFROST GRILL) TAN WIRE TAN/WHT WIRE TURN SIGNAL/ MULTIFUNCTION SWITCH UNDERHOOD FUSE BLOCK (RIGHT FRONT OF ENGINE WHT WIRE YEL WIRE

1314 419 EXTERIOR LIGHTS SYSTEM ENGINE CONTROLS 5.7L 818 1537 ANTI-LOCK BRAKES SYSTEM ABS INDICATOR B+ CLASS 2 (ECM) BACKLIGHTING BACKLIGHTING CTRL BLK WIRE BLK/WHT WIRE BRAKE FLUID LEVEL SWITCH (ON BRAKE FLUID RESERVOIR) BREAK INDICATOR BRN WIRE BRN/WHT WIRE CHARGE INDICATOR CLASS 2 (DIM) CLASS 2 (EBCM) CLASS 2 (ECM) CLASS 2 (ECM) B+ CLASS 2 (RIM) CLASS 2 (SDM) COMPUTER DATA LINES SYSTEM CRUISE INDICATOR DK BLU WIRE DK BLU/WHT WIRE DK GRN/WHT WIRE ECM/TCM FUSE ELEC PRNDL FUSE ELECTRONIC PRNDL ENGINE COOLANT TEMPERATURE INDICATOR EXTERIOR LIGHTS FASTEN SAFETY BELT INDICATOR FRONT FOG LAMPS INDICATOR FUEL LEVEL GROUND GRY WIRE HIGH BEAM INDICATOR HOT AT ALL TIMES HOT IN ACC OR RUN HOT IN RUN OR START IGNITION 1 VOLTAGE INSTRUMENT PANEL CLUSTER (IPC) LED DIMMING SIG LEFT TURN INDICATOR LIGHTS ON INDICATOR LOGIC LOW TIRE PRESSURE INDICATOR LT BLU WIRE LT BLU/WHT WIRE MALFUNCTION IND LAMP (MIL) ORG/BLK WIRE PARK BRAKE SWITCH (ON PARK BRAKE ASSEMBLY) PNK WIRE PPL PPL/WHT WIRE RED/WHT WIRE RIGHT DRIVER INFORMATION CENTER (DIC) (5.7L) RIGHT TURN INDICATOR SECURITY INDICATOR SERIAL DATA PARK BRAKE SW SIG SIR INDICATOR SKIP SHIFT IND SPEEDOMETER CONTROL B+ CLASS 2 B+ SPEEDOMETER LOW ENGINE OIL PRESSURE IND SPORT MODE INDICATOR SYSTEM TACHOMETER TACHOMETER CONTROL TAN/WHT WIRE TCM/IPC FUSE TEMPERATURE TOWER) TRACTION CONTROL OFF INDICATOR TRANSMISSION RANGE SW SIG A TRANSMISSION RANGE SW SIG B TRANSMISSION RANGE SW SIG C TRANSMISSION RANGE SW SIG C TRANSMISSION RANGE SW SIG P TRANSMISSION RANGE SW SIG P TRANSMISSIONS SYSTEM COMPUTER DATA LINES SYSTEM TRIP ODOMETER TRIP RESET SW SIG TRIP RESET SWITCH TRIP/ODOMETER CTRL UNDERHOOD FUSE BLOCK (RIGHT FRONT OF ENGINE COMPT) VEHICLE SPEED SIG VOLTAGE WAIT TO START INDICATOR (NOT USED) WHT WIRE WINTER MODE INDICATOR YEL WIRE

22 5 48 42 VEHICLE SPEED SIG ENGINE SPEED SIG SERIAL DATA FUEL LEVEL SENS SIG 5.7L BLK WIRE BLU WIRE BRN WIRE CLEAR DIC SIG CLR COMPUTER DATA LINES SYSTEM DIC BACK SIG BACK DK BLU WIRE DK GRN/WHT WIRE ENGINE CONTROL MODULE (ECM) (3.6L, 2.8L) (FRONT OF RIGHT VALVE COVER) ENGINE CONTROLS SYSTEM ENGINE OIL LEVEL/ ENGINE OIL LEVEL/ TEMPERATURE SENSOR (3.6L, 2.8L) (IN OIL PAN) ENGINE OIL PRESSURE (EOP) SENSOR (3.6L, 2.8L) (IN OIL FILTER HOUSING) ENGINE OIL PRESSURE (EOP) SENSOR (5.7L) EXCEPT 5.7L FUEL LEVEL SENS SIG FUEL LEVEL SENSOR FUEL LEVEL SENSOR TEMPERATURE SENSOR (5.7L) FUEL PUMP, SENSOR ASSEMBLY (IN FUEL TANK) GROUND GRY WIRE INFORMATION DN SW SIG INFO INFORMATION UP SW SIG LEFT STEERING WHEEL CONTROLS LOW REFERENCE LT BLU WIRE MESSAGE CENTER LOGIC MESSAGE REQUEST ORG/ WIRE ORG/BLK WIRE POWERTRAIN CONTROL MODULE (PCM) (5.7L) PPL PPL COMPUTER DATA LINES SYSTEM PPL PPL RADIO SCROLL DIC SIG SECONDARY FUEL SENDER ASSEMBLY (LEFT SIDE OF FUEL TANK) SERIAL DATA STEERING WHEEL CONTROL ASSEMBLY SWITCH 1 SWITCH 2 SWITCH 3 SWITCH 4 TAN WIRE TAN/BLK WIRE TAN/WHT WIRE TUNE/SEL VEHICLE SPEED SIGNAL WHT WIRE

BATTERY POSITIVE VOLTAGE BLK WIRE BRN/WHT WIRE DK BLU WIRE DK GRN WIRE DRIVER SEAT ADJUSTER SWITCH FRONT VERTICAL DOWN FRONT VERTICAL MOTOR UP CONTROL LUMBER MOTOR FORWARD CONTROL FRONT VERTICAL UP GROUND BATTERY POSITIVE VOLTAGE GRY WIRE HORIZONTAL FORWARD HORIZONTAL REARWARD HOT AT ALL TIMES LEFT REAR FUSE BLOCK (BELOW LEFT REAR SEAT) LT BLU WIRE LT GRN WIRE MEM/ADAPT SEAT FUSE MEMORY SEAT MODULE (MSM) (UNDER DRIVER'S SEAT) ORG/ WIRE PNK WIRE PPL PPL CLASS 2 SERIAL DATA REAR VERTICAL DOWN REAR VERTICAL UP RECLINE FORWARD RECLINE MOTOR FORWARD CONTROL RECLINE MOTOR REARWARD CONTROL RECLINE REARWARD RED WIRE SEAT CIRCUIT BREAKER TAN WIRE W/ HEATED SEATS W/ PASSENGER POWER SEATS WHT WIRE WHT/BLK WIRE YEL WIRE

BACKLIGHT LAMPS CONTROL BLK WIRE BLK/WHT WIRE BLU WIRE BRN/WHT WIRE DK BLU WIRE DK DK DK GRN WIRE DK NOT USED DRIVER DOOR MODULE (ON LEFT DOOR, UNDER DOOR TRIM) DRIVER DOOR SWITCH ASSEMBLY (DDSA) DRIVER LUMBAR ADJUSTER SWITCH DRIVER LUMBAR HORIZONTAL MOTOR ASSEMBLY DRIVER SEAT FRONT VERTICAL MOTOR DRIVER SEAT FRONT VERTICAL POSITION SENSOR DRIVER SEAT HORIZONTAL MOTOR DRIVER SEAT HORIZONTAL POSITION SENSOR DRIVER SEAT REAR VERTICAL MOTOR DRIVER SEAT REAR VERTICAL POSITION SENSOR DRIVER SEAT RECLINE MOTOR DRIVER SEAT RECLINE POSITION SENSOR EXIT (EXT) FORWARD/ GRN WIRE GROUND GRY WIRE LT BLU WIRE LT GRN WIRE LT LT MEMORY 1 SWITCH SIGNAL MEMORY 2 SWITCH SIGNAL MEMORY/PERSONALIZATION FUNCTION SWITCH NCA WIRE ORG/ WIRE PNK WIRE PPL PPL 2 3 10 8 MEMORY 2 SW SIGNAL MEMORY 1 SW SIGNAL CLASS 2 SERIAL DATA GROUND PPL PPL CLASS 2 SERIAL DATA CLASS 2 SERIAL DATA REARWARD TAN WIRE WHT WIRE WHT/BLK WIRE YEL WIRE

6 7 9 8 DOOR LOCK SW UNLOCK SIG DOOR LOCK SW LOCK SIG BATTERY GROUND BATTERY BATTERY GROUND BLK WIRE BLK/WHT WIRE COMPUTER DATA LINES SYSTEM DK BLU WIRE DOOR AJAR SIGNAL GND DOOR KEY UNLOCK SWITCH SIGNAL DOOR AJAR SIGNAL DOOR OPEN SIGNAL DOOR OPEN SIGNAL GND DR MOD PWR CIRCUIT BREAKER DRIVER DOOR LATCH ASSEMBLY DRIVER DOOR MODULE (ON LEFT DOOR, UNDER DOOR TRIM) DRIVER DOOR SWITCH ASSEMBLY (DDSA) DRIVER DR MOD FUSE FRONT PASSENGER DOOR LATCH ASSEMBLY FRONT PASSENGER DOOR MODULE (ON RIGHT FRONT DOOR, UNDER DOOR TRIM PANEL) GRN WIRE GROUND GRY WIRE GRY/BLK WIRE HOT AT ALL TIMES INTERIOR LIGHTS SYSTEM 694 295 JOINT CONNECTOR KEYLESS ENTRY ANTENNA SIGNAL LEFT REAR FUSE BLOCK (BELOW LEFT REAR SEAT) LT BLU WIRE LT GRN WIRE MEMORY SEAT SWITCH ORG/BLK WIRE PPL CLASS 2 SERIAL DATA PPL COMPUTER DATA LINES SYSTEM 1177 746 244 PSGR DR MOD FUSE RADIO ANTENNA MODULE (ABOVE HEADLINER, NEAR REAR WINDOW) REAR COMPARTMENT LID RELEASE SWITCH REAR DR MOD FUSE REAR GLASS ANTENNA RED WIRE RED/WHT WIRE RFA GRID RIGHT REAR FUSE BLOCK (BELOW RIGHT REAR SEAT) TAN WIRE TAN/WHT WIRE TRUNK DR RELEASE FUSE WHT RED/ WIRE WHT WIRE YEL WIRE

1491 294 295 840 451 451 INTERIOR LIGHTS SYSTEM AJAR BACKLIGHT LAMPS CONTROL BATTERY GROUND BLK WIRE BLK/WHT WIRE COMPUTER DATA LINES SYSTEM DK BLU WIRE DK BLU/WHT WIRE DRIVER DOOR LOCK SWITCH FRONT PASSENGER DOOR LOCK SWITCH FRONT PASSENGER WINDOW SWITCH GROUND GRY WIRE LEFT REAR DOOR LATCH ASSEMBLY LEFT REAR DOOR MODULE (UNDER DOOR TRIM PANEL) LOCK LT BLU WIRE LT BLU/BLK WIRE LT GRN/BLK WIRE ORG/BLK WIRE PPL CLASS 2 SERIAL DATA DOOR AJAR SWITCH SIGNAL DOOR OPEN SWITCH SIGNAL RED/WHT WIRE RIGHT REAR DOOR LATCH ASSEMBLY RIGHT REAR DOOR MODULE (ON RIGHT REAR DOOR, UNDER DOOR TRIM PANEL) TAN WIRE UNLOCK WHT WIRE YEL WIRE YEL/BLK WIRE

1 2 3 4 5 6 7 8 PPL REMOTE RADIO CTRL VOLTAGE 1 2 3 BATTERY FM COMPOSITE SIGNAL CLASS 2 SERIAL DATA 1544 5149 (OR 655) 18 19 20 21 22 PNK WIRE 1807 5152 (OR 1782) AM/FM ANTENNA SIGNAL AMP FUSE ANTENNA SIGNAL AUDIO FUSE BARE BATTERY GROUND BLK WIRE BLK/WHT WIRE BRN WIRE CELLULAR MICROPHONE SIGNAL DRAIN WIRE 10 2 BARE COAXIAL CABLE COIL 1 COIL 2 COMPUTER DATA LINES SYSTEM DK BLU WIRE DK BLU/WHT WIRE DK GRN WIRE FM ANTENNA SIGNAL FM COMPOSITE SIGNAL MODEM GROUND (NOT USED) GPS SIG GRY WIRE HOT AT ALL TIMES INFORMATION UP SW SIGNAL VOICE IN SIGNAL PNK WIRE INSIDE REARVIEW MIRROR INSTRUMENT CLUSTER SYSTEM JOINT CONNECTOR KEYLESS ENTRY/TIRE PRESSURE ANTENNA SIGNAL LEFT "A" PILLAR SPEAKER (TWEETER) LEFT FRONT DOOR SPEAKER (MIDRANGE) LEFT REAR FUSE BLOCK (BELOW LEFT REAR SEAT) LT BLU WIRE LT BLU/BLK WIRE LT GRN WIRE LT GRN/BLK WIRE MODEM RECEIVE (NOT USED) ORG/ WIRE PNK WIRE PNK/BLK WIRE PPL PPL CLASS 2 SERIAL DATA RETURN VOICE IN SIGNAL RADIO RADIO ANTENNA MODULE (ABOVE HEADLINER, NEAR REAR WINDOW) RADIO FRONT GLASS ANTENNA RADIO REAR GLASS ANTENNA REAR SPEAKER (SUBWOOFER) RED WIRE RED/BLK WIRE RED/WHT WIRE RFA REAR GLASS ANTENNA TAN WIRE TRUNK DR RELEASE FUSE UAV WHT WIRE YEL WIRE YEL/BLK WIRE

BLK WIRE BLU WIRE BRN WIRE DK BLU WIRE DK GRN WIRE GROUND GRY/BLK WIRE HALL EFFECT SENSOR 1 HALL EFFECT SENSOR 2 HOT AT ALL TIMES LIMIT SWITCH LT BLU WIRE LT GRN WIRE NCA WIRE ORG/ WIRE PNK PPL WIRE PPL SUNROOF SWITCH-DATA 6 SUNROOF SWITCH-DATA 2 RAP RELAY RAP RELAY COIL CTRL RAP RELAY SWITCH SUPPLY VOLTAGE CLOSE OPEN REAR INTEGRATION MODULE (UNDER PACKAGE SHELF TRIM PANEL) RIGHT REAR FUSE BLOCK SOLID STATE (CLOSE) SOLID STATE (OPEN) SUN ROOF MOD FUSE SUNROOF CONTROL SWITCH SUNROOF LIMIT SWITCH LOW REFERENCE SUNROOF MODULE SUNROOF MOTOR (AT LEFT FRONT CORNER OF SUNROOF MODULE) SUNROOF MOTOR CLOSE CONTROL SUNROOF MOTOR OPEN CONTROL TAN WIRE TAN/WHT WIRE YEL WIRE YEL/BLK WIRE