Cadillac CTS I (2002-2007) ppl ppl Wiring diagrams

39 35 STARTER RELAY COIL CTRL CPP SWITCH SIGNAL 59 18 CRANK VOLTAGE STARTER RELAY COIL VOLTAGE ABOVE STARTER) BATTERY BLK WIRE BRN/WHT WIRE CHARGING CIRCUIT CLUTCH PEDAL POSITION SWITCH (M/T) (ON CLUTCH PEDAL BRACKET) GROUND DISTRIBUTION SYSTEM HOT AT ALL TIMES HOT IN RUN OR START HTR VLV/ CLTCH FUSE IGN 1 RELAY IGNITION SWITCH LOCK OFF PNK PNK WIRE PNK WIRE POWERTRAIN CONTROL MODULE (PCM) PPL PPL PPL PPL/WHT WIRE RUN WIRE STARTER STARTER FUSE STARTER RELAY UNDERHOOD FUSE BLOCK (RIGHT FRONT OF ENGINE COMPARTMENT) WHT WIRE YEL WIRE

1807 1807 1807 PPL PPL PPL 1807 1807 PPL PPL CLASS 2 SERIAL DATA CLASS 2 SERIAL DATA 28 1080 HORN RELAY CTRL PARK LAMP RELAY CTRL CONTROL PWR OUTPUT 5058 5059 ARMED SIGNAL ALARM ON SIGNAL BATTERY PPL 9 5 4 (IN PASSENGER COMPARTMENT, NEAR RIGHT REAR FUSE BLOCK) BATTERY GROUND BLK WIRE BLK/WHT WIRE BLU WIRE CLASS 2 SERIAL DATA ACCESSORY VOLTAGE DK BLU/WHT WIRE DK GRN WIRE DOOR OPEN DRIVER DOOR LATCH ASSEMBLY DRIVER DOOR MODULE (ON LEFT DOOR, UNDER DOOR TRIM) ECM/TCM FUSE GROUND HORNS SYSTEM EXTERIOR LIGHTS SYSTEM HOT AT ALL TIMES HOT IN ACC OR RUN HOT IN RUN OR START IGNITION KEY INTRUSION SENSOR JOINT CONNECTOR LEFT REAR DOOR LATCH ASSEMBLY LEFT REAR DOOR MODULE (UNDER DOOR TRIM PANEL) LEFT REAR FUSE BLOCK (BELOW LEFT REAR SEAT) LT BLU WIRE NCA WIRE ORG/ WIRE ORG/BLK WIRE PNK PPL IGN 1 VOLTAGE ALARM ON SIGNAL TRUNK AJAR SWITCH SIGNAL WIRE PNK WIRE PPL CLASS 2 SERIAL DATA DOOR OPEN SWITCH SIGNAL PPL PPL PPL PPL PPL 1 2 3 4 5 6 7 READER/ EXCITER REAR INTEGRATION MODULE (UNDER PACKAGE SHELF TRIM PANEL) RED WIRE RED/WHT WIRE RIGHT REAR DOOR LATCH ASSEMBLY RIGHT REAR DOOR MODULE (ON RIGHT REAR DOOR, UNDER DOOR TRIM PANEL) RIGHT REAR FUSE BLOCK (BELOW RIGHT REAR SEAT) RIM FUSE TAN WIRE TAN/WHT WIRE THEFT DETERRENT CONTROL MODULE (AT TOP OF STEERING COLUMN) THEFT FUSE TRANSPONDER TRUNK DR REL SOL RELAY TRUNK DR RELEASE FUSE UNDERHOOD FUSE BLOCK (RIGHT FRONT OF ENGINE COMPT) WHT WIRE YEL WIRE YEL/BLK 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

AMBIENT LIGHT SENSOR SIGNAL BATTERY BLK WIRE BLK/WHT WIRE BLOWER FUSE BLOWER RELAY BRN WIRE CCP FUSE CMP CLU RELAY COMP CLUTCH FUSE COMPUTER DATA LINES SYSTEM DK BLU WIRE DK GRN WIRE DK GRN/WHT WIRE DOOR (B+) DOOR A PPL EVAPORATOR TEMPERATURE SENSOR (ON RIGHT SIDE OF EVAPORATOR CASE) GRY WIRE GRY/BLK WIRE HOT AT ALL TIMES HOT IN HVAC CONTROL MODULE (BEHIND CENTER OF DASH, BELOW RADIO) IGN 3 FUSE IGNITION 3 VOLTAGE INSIDE AIR TEMPERATURE SENSOR (BEHIND DASH, LEFT OF RADIO) JOINT CONNECTOR LEFT REAR FUSE BLOCK (BELOW LEFT REAR SEAT) LEFT SUNLOAD SENSOR SIGNAL LOW REFERENCE LT BLU WIRE LT BLU/BLK WIRE LT GRN WIRE LT GRN/BLK WIRE NCA WIRE PNK WIRE PPL PPL PPL RECIRCULATION ACTUATOR (ON HVAC MODULE, AIR INLET MOTOR LEFT OF BLOWER MOTOR) RED WIRE RED/WHT WIRE RIGHT SUNLOAD SENSOR SIGNAL RUN WIRE SOLID STATE SPLICE PACK SUNLOAD SENSOR (TOP CENTER OF I/P, ON DEFROST GRILL) TAN WIRE UNDERHOOD FUSE BLOCK (RIGHT FRONT OF ENGINE COMPARTMENT) VOLT WHT WIRE WHT/BLK WIRE YEL WIRE YEL/BLK 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

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

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

1 2 3 4 5 6 7 8 9 10 11 12 13 14 15 16 17 18 19 20 BARE VOICE OUTPUT GROUND 818 2011 INSTRUMENT CLUSTER SYSTEM AMP FUSE ANTENNA SIGNAL ANTENNA SIGNAL BATTERY FM COMPOSITE SIGNAL CLASS 2 SERIAL DATA 1 2 3 AUDIO FUSE BARE BARE DRAIN BATTERY GROUND BARE DRAIN WIRE SUPPLY VOLTAGE BARE PPL BLK WIRE BLK/WHT WIRE BRN WIRE BRN/WHT WIRE CELLULAR MICROPHONE SIGNAL DRAIN WIRE 10 2 BARE COAXIAL CABLE COMPUTER DATA LINES SYSTEM COMPUTER DATA LINES SYSTEM 1807 1545 1796 5142 DIGITAL RADIO ANTENNA (CENTER REAR OF ROOF) DIGITAL RADIO RECEIVER DK BLU WIRE DK GRN WIRE DK GRN/WHT WIRE FM COMPOSITE SIGNAL MODEM GROUND (NOT USED) GPS SIG GRN WIRE GROUND AUDIO COMMON GRY WIRE HOT AT ALL TIMES JOINT CONNECTOR LEFT REAR FUSE BLOCK (BELOW LEFT REAR SEAT) LT BLU WIRE LT GRN WIRE NCA WIRE NOISE COMPENSATION MICROPHONE (IN OVERHEAD CONSOLE) ORG/ WIRE PNK WIRE PNK/BLK WIRE PPL PPL CLASS 2 SERIAL DATA BATTERY PPL CLASS 2 SERIAL DATA RETURN VOICE IN SIGNAL (OR BARE) PPL COMPUTER DATA LINES SYSTEM PPL PPL RADIO RADIO ANTENNA MODULE (ABOVE HEADLINER, NEAR REAR WINDOW) RADIO FRONT GLASS ANTENNA FM ANTENNA SIGNAL RADIO REAR GLASS ANTENNA AM/FM ANTENNA SIGNAL REARVIEW MIRROR INSIDE RED WIRE RED/BLK WIRE RED/WHT WIRE RFA REAR GLASS ANTENNA KEYLESS ENTRY/TIRE PRESSURE ANTENNA SIGNAL RIGHT "A" PILLAR SPEAKER (TWEETER) RIGHT FRONT DOOR SPEAKER SATELLITE ANTENNA SATELLITE ANTENNA SIGNAL TAN WIRE TAN/WHT WIRE TERRESTRIAL ANTENNA TERRESTRIAL ANTENNA SIGNAL TRUNK DR RELEASE FUSE UAV VOICE OUTPUT (+) MODEM RECEIVE (NOT USED) VOICE OUTPUT (-) INFORMATION UP SW SIGNAL VOICE IN SIGNAL WHT WIRE YEL WIRE YEL/BLK WIRE

1 2 8 VOICE SIGNAL LOW REF DRAIN WIRE 2 4 PNK MIC OUT MIC OUT RTN WIRE AUDIO AMPLIFIER (LEFT SIDE OF TRUNK) BACK BARE BARE (BLUNT CUT) BARE DRAIN WIRE BARE PPL BLK WIRE BLK/WHT WIRE BLU WIRE COMPUTER DATA LINES SYSTEM DK BLU WIRE DK BLU/WHT WIRE DK GRN WIRE DK LT ENT FRONT SPEAKER (CENTER) GRN WIRE GROUND SUBWOOFER SPKR OUT (+) INFLATABLE RESTRAINT STEERING WHEEL MODULE COIL (BELOW INFLATABLE LEFT "A" PILLAR SPEAKER (TWEETER) LEFT FRONT DOOR SPEAKER (TWEETER) LEFT STEERING WHEEL CONTROLS LT BLU WIRE LT BLU/BLK WIRE LT GRN WIRE LT GRN/BLK WIRE LT LT PPL MODEM GROUND (NOT USED) DRAIN WIRE MODEM RECEIVER (NOT USED) MODEM TRANSMIT (NOT USED) ORG/ WIRE PNK WIRE PNK/BLK WIRE PPL PPL INTERIOR LIGHTS SYSTEM PPL PPL RED/BLK WIRE RESTRAINT STEERING WHEEL MODULE) RIGHT REAR DOOR SPEAKER RIGHT STEERING WHEELS CONTROL STEERING WHEEL CONTROL ASSEMBLY (2.8L/3.6L) SUBWOOFER SPKR OUT (-) BATTERY TAN WIRE WHT WIRE YEL WIRE YEL/BLK WIRE