Cadillac CTS II (2007-2014) underhood fuse block (right front of engine compt) Wiring diagrams

8 9 DATA BUS (+) DATA BUS (-) AUTOMATIC DAY/NIGHT MIRROR BACKUP LAMP SUPPLY VOLT BACKUP LP SPLY VOLT BATT POSITIVE VOLT KEYPAD SIG KEYPAD SPLY VOLT KEYPAD GREEN LED SIG BLK WIRE BLK/WHT WIRE BODY CONTROL MODULE (BCM) (CENTER OF DASH, BRANCH BRN/WHT WIRE COMPUTER DATA LINES SYSTEM DATA BUS+ DATA BUS- GND DK GRN/WHT WIRE EMERGENCY IND EMERGENCY SWITCH GROUND HOT AT ALL TIMES HOT W/ IGN 1 RELAY ENERGIZED IGN INSIDE REARVIEW MIRROR (ISRVM) ISRVM FUSE KEYPAD KEYPAD GREEN LED IND KEYPAD RED LED SIG WIRE LOGIC LT GRN WIRE LT GRN/BLK WIRE ON STAR BUTTON ASSEMBLY ONSTAR FUSE ONSTAR IND ONSTAR SWITCH PHONE IND PHONE SWITCH PNK WIRE REAR FUSE BLOCK (RIGHT REAR OF LUGGAGE COMPT) RED LED IND WIRE RED/WHT WIRE TAN WIRE TAN/BLK WIRE UNDERHOOD FUSE BLOCK (RIGHT FRONT OF ENGINE COMPT) VEHICLE COMMUNICATION INTERFACE MODULE (VCIM) (BEHIND RIGHT REAR STRUT TOWER) YEL/BLK WIRE

AWD FUSE BATT GROUND BLK WIRE COMPUTER DATA LINES SYSTEM DK BLU WIRE DK GRN WIRE DK GRN/WHT WIRE DRIVER INFORMATION LOGIC CENTER (DIC) ECM, TCM IGN FUSE GMLAN HOT AT ALL TIMES HOT W/ IGN 1 RELAY ENERGIZED INSTRUMENT PANEL CLUSTER (IPC) MODULE (BCM) PNK WIRE POWER DISTRIBUTION SYSTEM PPL PPL 1 2 3 4 5 6 7 8 9 10 11 12 13 14 15 16 OIL TEMP SENS SIG PPL/WHT WIRE RED/WHT WIRE RESISTOR SIG SERIAL DATA BUS (+) SERIAL DATA BUS (-) TAN WIRE TAN/BLK WIRE TRANSFER CASE CLUTCH COIL (REAR OF TRANSFER CASE) TRANSFER CASE FLUID TEMPERATURE SENSOR (REAR OF TRANSFER CASE) TRANSFER CASE SHIFT CONTROL MODULE (RIGHT SIDE OF DASH) UNDERHOOD FUSE BLOCK (RIGHT FRONT OF ENGINE COMPT) WAKEUP SERIAL DATA YEL/BLK WIRE YEL/WHT WIRE

29 7 55 53 GEN DUTY CYCLE SIG GEN TURN ON SIG 53 33 39 40 SERIAL DATA BUS+ SERIAL DATA BUS- 6.2L 3.0L&3.6L 8 9 SERIAL DATA BUS+ SERIAL DATA BUS- BATTERY BATTERY CURRENT SENSOR (RIGHT RARE OF LUGGAGE COMPT) BLK WIRE BLK/WHT WIRE BODY CONTROL MODULE (BCM) (CENTER OF DASH, BRN WIRE CHARGE IND COMPUTER DATA LINES SYSTEM CURRENT SENS LOW REF CURRENT SENS CURRENT SENS SIG DK GRN WIRE DRIVER INFORMATION CENTER (DIC) ENGINE CONTROL MODULE (ECM) GENERATOR GROUND GRY WIRE INLINE FUSE GENERATOR INSTRUMENT PANEL CLUSTER (IPC) LOGIC LOW SPEED GMLAN SERIAL DATA LOW SPEED GMLAN SERIAL DATA PNK SPLY VOLT WIRE PNK WIRE POWER DISTRIBUTION SYSTEM REAR FUSE BLOCK (RIGHT REAR OF LUGGAGE COMPT) RED WIRE RED/WHT WIRE RVC/SNSR FUSE STARTER MOTOR TAN WIRE TAN/BLK WIRE UNDERHOOD FUSE BLOCK (RIGHT FRONT OF ENGINE COMPT) WHT WHT WIRE WHT WIRE

23 PNK WIRE BATT POSITIVE VOLT BLK WIRE BLU WIRE BRN WIRE COMPUTER DATA LINES SYSTEM DK BLU WIRE DK GRN WIRE DRIVER BACK HEATED SEAT ELEMENT (IN DRIVER FRONT SEAT BACK) DRIVER CUSHION HEATED SEAT ELEMENT (IN DRIVER FRONT SEAT CUSHION) DRIVER SEAT CUSHION VENTILATION HEATING, COOLING MODULE DRV SEAT BLOWER SPD CTRL DRV SEAT CUSHION HEATED MOD COOL CTRL DRV SEAT CUSHION TEMP SENS LOW REF DRV SEAT CUSHION TEMP SENS SIG GRN WIRE GRY WIRE HOT W/ IGN 1 RELAY ENERGIZED MISC IGN FUSE LOW SPD GMLAN SERIAL DATA LT GRN WIRE MEMORY SEAT MODULE (MSM) (UNDER DRIVER'S SEAT) MEMORY SYSTEM NCA WIRE ORG/ WIRE PASS SEAT BLOWER SPD CTRL PASS SEAT CUSHION HEATED MOD HEAT CTRL PASS SEAT CUSHION TEMP SENS SIG PNK DRV SEAT CUSHION HEATED MOD HEAT CTRL WIRE PNK PASS SEAT CUSHION HEATED MOD COOL CTRL WIRE PNK PNK PNK WIRE PNK WIRE RED/WHT WIRE SEDAN, WAGON, COUPE SENS LOW REF TAN WIRE UNDERHOOD FUSE BLOCK (RIGHT FRONT OF ENGINE COMPT) W/ DELUXE STEERING WHEEL, THEFT DETERENT W/ RECARO FRONT BUCKET SEATS W/O RECARO FRONT BUCKET SEATS YEL WIRE YEL/BLK WIRE

1 2 3 4 5 6 7 8 9 10 11 12 13 14 15 16 ON/OFF SW SIG 1 2 3 4 5 6 7 8 9 10 11 12 13 14 MTR OPEN CTRL MTR CLOSE CTRL 1 2 3 4 5 6 MTR OPEN CTRL MTR CLOSE CTRL B+ B+ 1 7 3 SW SIG LAMPS CTRL GROUND BLK WIRE BLK/WHT WIRE BRN WIRE BRN/WHT WIRE CLOSE SIG AJAR SW SIG AJAR SW SIG AJAR SW SIG SER DATA OBJECT SENS SIG COMPUTER DATA LINES SYSTEM DISPLY FUSE DK GRN WIRE DRIVER DOOR LOCK/ WINDOW SWITCH DRIVER INFORMATION CENTER (DIC) DISPLAY EXTERIOR LIFTGATE CONTROL SWITCH GROUND GRY WIRE GRY/BLK WIRE GRY/WHT WIRE HOT AT ALL TIMES HOT AT ALL TIMES LIFTGATE MODULE (LGM) INLINE FUSE (NEAR REAR FUSE BLOCK) INSTRUMENT PANEL CLUSTER (IPC) INTERIOR LIFTGATE CONTROL SWITCH LAMP CTRL LEFT LIFTGATE OBJECT SENSOR (LEFT SIDE OF LIFTGATE) LIFTGATE CLOSE SWITCH LIFTGATE LATCH ASSEMBLY LIFTGATE MODULE (LGM) (RIGHT SIDE OF LIFTGATE) LIFTGATE MOTOR ASSEMBLY (LEFT REAR OF LUGGAGE COMPT) LOGIC LOW REF LT BLU WIRE MAX 3/4 MSM FUSE NCA WIRE OFF PNK/BLK WIRE POWER DISTRIBUTION SYSTEM PPL/WHT WIRE REAR FUSE BLOCK (RIGHT REAR OF LUGGAGE COMPT) RED/WHT WIRE RIGHT LIFTGATE OBJECT SENSOR SER DATA SW OPEN SIG UNDERHOOD FUSE BLOCK (RIGHT FRONT OF ENGINE COMPT) WHT WIRE WHT/BLK WIRE YEL WIRE

2500 2501 COMPUTER DATA LINES 2500 2501 COMPUTER DATA LINES SYSTEM 2501 2501 2501 1492 5986 6107 6108 COMPUTER DATA LINES SYSTEM 39 40 53 33 HI SPD GMLAN + HI SPD GMLAN - 5 VOLT REF 5-VOLT REF 1 6.2L EXCEPT 6.2L 8 9 HI SPD GMLAN HI SPD GMLAN BLK WIRE BLK/BRN WIRE BLK/YEL WIRE BLU/YEL WIRE BODY CONTROL MODULE (BCM) (CENTER OF DASH, BRAKE PEDAL POSITION SENSOR (TOP OF BRAKE PEDAL) BRK POS SENS SIG BRN WIRE COMPUTER DATA LINES SYSTEM DK BLU/BLK WIRE DK GRN WIRE EPB FUSE GRY/RED WIRE HOT AT ALL TIMES INSTRUMENT CLUSTER LOGIC DRIVER INFORMATION CENTER (DIC) DISPLAY LOW REF LT BLU WIRE LT BLU/VIO WIRE PARK BRAKE IND PARK BRAKE SWITCH (ON PARK BRAKE ASSEMBLY) PARKING BRAKE CONTROL MODULE RED/BLK WIRE STOP LAMP SW SIG SYSTEM TAN WIRE TAN/BLK WIRE UNDERHOOD FUSE BLOCK (RIGHT FRONT OF ENGINE COMPT) WHT WIRE WHT/GRN WIRE WHT/RED WIRE YEL WIRE YEL/RED WIRE

BLK WIRE COMPUTER DATA LINES SYSTEM COUPE DIFF PUMP FUSE DIFFERENTIAL COOLER PUMP DIFFERENTIAL COOLER PUMP RELAY 1 DIFFERENTIAL COOLER PUMP RELAY 2 (COUPE) DIFFERENTIAL TEMPERATURE SWITCH DK GRN WIRE DRIVER INFORMATION CENTER (DIC) DISPLAY ECM/TCM IGN FUSE GMLAN SER DATA HOT AT ALL TIMES HOT W/ IGN RELAY ENERGIZED INSTRUMENT PANEL CLUSTER (IPC) LOGIC OIL TEMP SENS SIG ORG/ WIRE PNK WIRE POWER DISTRIBUTION SYSTEM PPL PPL/WHT WIRE REAR DIFFERENTIAL TEMPERATURE SENSOR REAR FUSE BLOCK (RIGHT REAR OF LUGGAGE COMPT) RED/WHT WIRE UNDERHOOD FUSE BLOCK (RIGHT FRONT OF ENGINE COMPT)

13 14 15 5361 5360 5359 STOP LAMP SW SIG LOW REF 5-VOLT REF 1 3 8 9 1140 2500 2501 BATTERY POS VOLT HI SPD GMLAN + HI SPD GMLAN - 47 68 43 27 5381 5382 5 VOLT REF LOW REF 53 33 2500 2501 HI SPD GMLAN + HI SPD GMLAN - 6.2L EXCEPT 6.2L AUTOMATIC TRANSMISSION AUTOMATIC TRANSMISSION INTERNAL MODE SWITCH (IMS) AUTOMATIC TRANSMISSION SHIFT LEVER AUTOMATIC TRANSMISSION SHIFT LOCK CONTROL SOLENOID BCM 1 FUSE BLK WIRE BLK/BRN WIRE BLK/YEL WIRE BLU/YEL WIRE BODY CONTROL MODULE (BCM) (CENTER OF DASH, BRAKE PEDAL POSITION SENSOR (TOP OF BRAKE PEDAL) BRK POS SENS SIG COMPUTER DATA LINES SYSTEM DK GRN/WHT WIRE GRY WIRE HOT AT ALL TIMES ORG/BLK WIRE PARK/NEUTRAL RED WIRE RED/WHT WIRE SHIFT LOCK CTRL SOL TAN WIRE TAN/BLK WIRE TRANSMISSION CONTROL SOLENOID VALVE ASSEMBLY CONTROL MODULE (TCM) TRANSMISSIONS SYSTEM UNDERHOOD FUSE BLOCK (RIGHT FRONT OF ENGINE COMPT) WHT WIRE WHT/GRN WIRE WHT/RED WIRE

2 1 FM ANT FM ANT 3 2 1 IGN 6 5 4 3 2 1 IGN VOLT GND L AUDIO (+) R AUDIO (+) VIDEO SIG (+) VIDEO SIG (-) BLK WIRE CLOCK SIG L AUDIO (+) R AUDIO (+) VIDEO SIG (+) VIDEO SIG (-) DIGITAL VIDEO DISC (DVD) CONTROL MODULE DIGITAL VIDEO DISC (DVD) CONTROL MODULE INLINE FUSE DRIVER SEAT HEADREST DIGITAL VIDEO DISC (DVD) DISPLAY FM ANTENNA HOT W/ IGN 1 RELAY ENERGIZED ISRVM FUSE PASSENGER SEAT HEADREST DIGITAL VIDEO DISC (DVD) DISPLAY PNK WIRE RED WIRE UNDERHOOD FUSE BLOCK (RIGHT FRONT OF ENGINE COMPT) WHT WIRE YEL WIRE

12 8 HDLMPS ON PARK LAMP ON SIG 13 9 RF DOOR AJAR SERIAL DATA 14 15 RR DOOR AJAR SW LR DOOR AJAR SW 8 9 SERIAL DATA BUS+ SERIAL DATA BUS- 9 13 SERIAL DATA LF DOOR AJAR 9 2 4 GROUND BATT POSITIVE VOLT BATT POSITIVE VOLT AUDIO AMPLIFIER (W/ SURROUND AMPLIFIER) (SEDON: REAR OF LEFT REAR STRUT TOWER) BCM 3 FUSE BCM 4 FUSE BLK WIRE BLK/DK BLU WIRE BLK/WHT WIRE BODY CONTROL MODULE (BCM) (CENTER OF DASH, BRAKE FLUID LEVEL SWITCH (ON BRAKE FLUID RESERVOIR) BRAKE IND BRN/WHT WIRE COMPUTER DATA LINES SYSTEM COUPE CRANK VOLT DK BLU WIRE DK GRN WIRE DRIVER DOOR LATCH (DRIVER'S DOOR) DRIVER DOOR LOCK/WINDOW SWITCH DRIVER INFORMATION CENTER (DIC) DISPLAY DRIVER SEAT BELT IND DRIVER SEAT BELT SWITCH DRIVER RADIO/HAVC CONTROL SEAT BELT BUCKLE GRY/BLK WIRE HDLMPS OFF HEAD HOT AT ALL TIMES IGNITION SWITCH IND CTRL INFLATABLE RESTRAINT SENSING, DIAGNOSTIC MODULE (SDM) (UNDER CENTER CONSOLE) INSTRUMENT PANEL CLUSTER (IPC) KEY IN IGN SW SIG KEY-IN IGNITION SWITCH LEFT REAR DOOR LATCH (SEDON, WAGON) (LEFT REAR DOOR) LO SPD GM LAN SERIAL DATA LO SPD GMLAN SERIAL DATA LOGIC LOW TIRE PRESSURE IND LT BLU WIRE LT BLU/BLK WIRE LT BLU/WHT WIRE LT GRN WIRE LT GRN/BLK WIRE OFF ORG/ WIRE ORG/BLK WIRE PARK AUTO PARK AUTO OFF HEAD PARK BRAKE SW SIG PARK BRAKE SWITCH (ON PARK BRAKE ASSEMBLY) PARK IND PASS SEAT BELT IND PASSENGER DOOR LATCH (PASSENGER'S DOOR) PASSENGER DOOR LOCK/WINDOW SWITCH PASSENGER SEAT BELT SWITCH PASSENGER SEAT BELT BUCKLE RADIO RED/WHT WIRE RIGHT REAR DOOR LATCH (SEDON, WAGON) (RIGHT REAR DOOR) RUN WIRE SEDAN/WAGON SWITCH TAN WIRE TAN/BLK WIRE TAN/WHT WIRE TURN SIGNAL/ MULTI-FUNCTION SWITCH UNDERHOOD FUSE BLOCK (RIGHT FRONT OF ENGINE COMPT) W/ KEYLESS ENGINE W/O KEYLESS ENGINE WHT WIRE