Cadillac ATS I (2012-2014) computer data lines system Wiring diagrams

AUXILIARY UNDERHOOD FUSE BLOCK BATT POSITIVE VOL BATT RVC FUSE BATTERY BATTERY CURRENT SENSOR BATTERY FUSE BLOCK BLK WIRE BLK/VIO WIRE BLU WIRE BLU/VIO WIRE BODY CONTROL MODULE (BEHIND GLOVE BOX) BRN WIRE CHARGE IND CHARGE IND CTRL COMPUTER DATA LINES SYSTEM CURRENT SENSOR LOW REF CURRENT SENSOR SIG CURRENT SENSOR SUPPLY VOLTAGE DRIVER INFORMATION CENTER DISPLAY ENGINE CONTROL MODULE FUSE 5 FUSE 6 GENERATOR GENERATOR FIELD DUTY CYCLE SIG GROUND GRY WIRE GRY/VIO WIRE HIGH SPEED GMLAN SERIAL DATA (+) HOT AT ALL TIMES INSTRUMENT CLUSTER LOGIC LOW SPD GMLAN ON BATTERY) REAR BODY FUSE BLOCK RED WIRE RED/YEL WIRE SERIAL DATA STARTER MOTOR WHT WIRE WHT/GRN WIRE WHT/YEL WIRE YEL WIRE

AUTO STOP START INDICATOR CTRL AUTO STOP START SWITCH SIGNAL AUXILIARY UNDERHOOD FUSE BLOCK BATT POSITIVE VOL BATT RVC FUSE BATTERY BATTERY FUSE BLOCK BATTERY FUSE HOLDER BATTERY SENSOR MODULE BLK WIRE BLK/GRN WIRE BLK/YEL WIRE BLU WIRE BODY CONTROL MODULE (BEHIND GLOVE BOX) BRN WIRE BRN/GRN WIRE CHARGE IND CHARGE IND CTRL COMPUTER DATA LINES SYSTEM DC DC TRANS FUSE DRIVER INFORMATION CENTER DISPLAY ENGINE CONTROL MODULE FUSE 4 FUSE 5 FUSE 6 FUSE HOLDER GENERATOR GENERATOR FIELD DUTY CYCLE SIG GRN WIRE GRN/BRN WIRE GRN/RED WIRE GROUND GRY WIRE GRY/VIO WIRE HIGH SPEED GMLAN SERIAL DATA (+) HOOD AJAR SWITCH (AT HOOD LATCH) HOOD LATCH SENSOR LOW REF HOOD STATUS A SIGNAL HOOD STATUS B SIGNAL HOT AT ALL TIMES HOT W/ IGNITION MAIN RELAY ENERGIZED INDICATOR DIMMING CONTROL INSTRUMENT CLUSTER INSTRUMENT PANEL MULTI- FUNCTION SWITCH LIN INTERCONNECT NETWORK BUS 1 LOGIC LOW SPD GMLAN SERIAL DATA NCA WIRE NEUTRAL GEAR SENSOR RETURN NEUTRAL GEAR SENSOR SIGNAL (1) NEUTRAL GEAR SENSOR SUPPLY NEUTRAL POSITION SENSOR ON BATTERY) POWER DISTRIBUTION SYSTEM POWER SUPPLY TRANSFORMER REAR BODY FUSE BLOCK RED WIRE RED/BLU WIRE RED/BRN WIRE RED/YEL WIRE RUN/CRANK IGN 1 VOL STARTER MOTOR TRLR/ SUNSHD FUSE VIO WIRE VIO/BLK WIRE WHT WIRE WHT/GRN WIRE YEL WIRE

13 7 3 SENS SPLY VOLT SENS SIG BAT POS VOLT 24 12 HAZARD SW RIGHT TURN SIG HAZARD SW LEFT TURN SIG 8 4 6 COIL SPLY VOLT RR TURN SIG SPLY VOLT LEFT PARK LP SPLY VOLT AOS DISPLAY/ MIL IGN BCM 5 FUSE BLK WIRE BLK/BRN WIRE BLU WIRE BLU/VIO WIRE BLU/WHT WIRE BLU/YEL WIRE BODY CONTROL MODULE (BEHIND GLOVE BOX) BREAKOUT) BRN GRY/ WIRE COMPUTER DATA LINES SYSTEM DRIVER OUTSIDE REARVIEW MIRROR DRIVER TURN SIGNAL LAMP FROM FRONT WIRE CHANNEL UNDER PASSENGER SEAT) FUSE GMLAN SERIAL DATA GRN/GRY WIRE GRN/VIO WIRE GRN/WHT WIRE GRN/YEL WIRE GRY BRN/ WIRE GRY/BRN WIRE GRY/YEL WIRE HAZARD LED DIMMING SIG HAZARD SW SIG HAZARD WARNING SWITCH HEAD HOT AT ALL TIMES HOT W/ IGNITION MAIN RELAY ENERGIZED LEFT LF TURN SIG SPLY VOLT LR TURN SIG SPLY VOLT LOGIC NCA WIRE PARK AUTO OFF PARK LAMP SIG PASSENGER OUTSIDE REARVIEW MIRROR PASSENGER TURN SIGNAL LAMP REAR TURN LP FEEDBACK SIG RED/BRN WIRE RF TURN SIG SPLY VOLT RIGHT PARK LP SPLY VOLT REAR LP SPLY VOLT 5 13 RIGHT RIGHT AUXILIARY DAYTIME RUNNING LAMP RIGHT FRONT PARK LAMP RIGHT FRONT SIDE MARKER LAMP RIGHT FRONT TURN SIGNAL LAMP RIGHT HEADLAMP ASSEMBLY RIGHT STOP/ TURN SIGNAL LAMP RIGHT TAIL LAMP RIGHT TAIL LAMP ASSEMBLY RR TURN LP FEEDBACK SIG SENS LOW REF TURN SIGNAL/ MULTI-FUNCTION SWITCH UNDERHOOD FUSE BLOCK (RIGHT FRONT OF ENGINE COMPT) VIO/BLU WIRE VIO/GRY WIRE VIO/WHT WIRE W/ HID W/O HID WHT WIRE WHT/BLK WIRE WHT/GRN WIRE WHT/VIO WIRE

BLK WIRE BLK/BRN WIRE BLK/YEL WIRE BLU WIRE BLU/WHT WIRE BLU/YEL WIRE BRAKE PEDAL POSITION SENSOR (ON BRAKE PEDAL BRACKET) BRK POS SENS LO REF BRK POS SENS SIG CENTER HIGH MOUNTED STOP LAMP COMPUTER DATA LINES SYSTEM DOWN FROM DAYTIME RUNNING LAMP (LEFT) BREAKOUT) DRIVER INFORMATION CENTER DISPLAY ENGINE CONTROL MODULE (RIGHT FRONT OF ENGINE COMPT) FROM CENTER HIGH MOUNTED STOP LAMP CONNECTOR BREAKOUT) FROM FRONT WIRE CHANNEL UNDER PASSENGER SEAT) (W/ TRAILER PROVISIONS) FROM WIRE CHANNEL UNDER LEFT SIDE OF REAR SEAT) FRONT FASCIA) GRN/VIO WIRE GRN/YEL WIRE GRY/ VIO WIRE HI SPD GMLAN SERIAL DATA IGNITION 1 VOLT INSTRUMENT CLUSTER LEFT AUXILIARY DAYTIME RUNNING LAMP LEFT FRONT PARK LAMP LEFT FRONT SIDE MARKER LAMP LEFT FRONT TURN SIGNAL LAMP LEFT HEADLAMP ASSEMBLY LEFT LICENSE PLATE LAMP LEFT STOP/ TURN SIGNAL LAMP LEFT TAIL LAMP LEFT TAIL LAMP ASSEMBLY LEFT TURN IND LOGIC LT GRN/BLK WIRE MOST NCA WIRE PARK LAMPS IND RIGHT LICENSE PLATE LAMP RIGHT TURN IND RUN/CRANK SERIAL DATA SERIAL DATA (-) MOST TRAILER TOW CIRCUIT VIO/ GRY WIRE VIO/GRY WIRE VIO/WHT WIRE W/ HID W/O HID WHT WIRE WHT/GRN WIRE WHT/RED WIRE WHT/VIO WIRE

2501 2501 2500 1492 COMPUTER DATA LINES SYSTEM B+ VOL REF SIGNAL VOL REF DATA - BLK WIRE BLK/GRN WIRE BLU WIRE BLU/BLK WIRE BLU/PPL WIRE BRN WIRE COMPUTER DATA LINES SYSTEM DATA + DATA + GND DATA - DATA - DATA - DATA COM DRIVER INFOR- MATION CENTER DISPLAY E/PRK BRK FUSE GRN/WHT WIRE GRY WIRE GRY/RED WIRE GRY/VIO WIRE HOT AT ALL TIMES M/T MOST SERIAL DATA (-) MOST SERIAL DATA (+) PARK BRAKE CONTROL SWITCH PARK BRAKE IND LOGIC INSTRUMENT PANEL CLUSTER (IPC) PARKING BRAKE CONTROL MODULE (BEHIND LEFT REAR WHEELHOUSE PANEL LINER) REAR BODY FUSE BLOCK (LEFT SIDE OF LUGGAGE COMPT) RED/PPL WIRE SPLY VOL SW SIG SW SIG WHT WIRE WHT/BLU WIRE WHT/GRN WIRE YEL WIRE YEL/RED WIRE

1 2 3 4 5 6 7 GND B+ BLK WIRE BLU/GRY WIRE BLU/VIO WIRE BODY CONTROL MODULE (BEHIND GLOVE BOX) BRN/YEL WIRE BUS 3 COMPUTER DATA LINES SYSTEM DOOR LOCK MTR STATUS CTRL DOOR LOCK KEY SW SIG DOOR LOCKS SYSTEM DOWN DRIVER WINDOW MOTOR EXPRESS GRN WIRE GRN/BLK WIRE GRN/GRY WIRE GRN/WHT WIRE GRN/YEL WIRE GRY WIRE HOT AT ALL TIMES LEFT FRONT WINDOW DOWN SWITCH LEFT FRONT WINDOW EXPRESS SWITCH LEFT REAR WINDOW DOWN SWITCH LEFT REAR WINDOW EXPRESS DOWN SWITCH LEFT REAR WINDOW MOTOR LEFT REAR WINDOW SWITCH LEFT REAR WINDOW UP SWITCH LIN BUS 3 LIN BUS 4 LOCK OUT LEFT FRONT IND WINDOW UP SWITCH LOCK OUT SWITCH LOGIC LOGIC DRIVER WINDOW SWITCH LOGIC RIGHT REAR WINDOW SWITCH LR DOWN CTRL LR DR AJAR SW SIG LR UP CTRL LT WNDW FUSE MIR WNDW MDL FUSE PASSENGER WINDOW MOTOR PASSENGER WINDOW SWITCH REAR BODY FUSE BLOCK RED/BLU WIRE RED/VIO WIRE RED/WHT WIRE RF DR AJAR SW SIG RIGHT FRONT WINDOW DOWN SWITCH RIGHT FRONT WINDOW EXPRESS SWITCH RIGHT FRONT WINDOW UP SWITCH RIGHT REAR WINDOW DOWN SWITCH RIGHT REAR WINDOW EXPRESS DOWN SWITCH RIGHT REAR WINDOW MOTOR RIGHT REAR WINDOW UP SWITCH RR DOWN CTRL RR DR AJAR SW SIG RR UP CTRL RT WNDW FUSE SW DOWN SIG SW DRV UP SIG N/W BUS 3 SW DRV EXP SIG LF DR AJAR SW SIG SW DRV DOWN SIG SW EXPRESS SIG SW UP SIG VIO/GRY WIRE WHT/VIO WIRE YEL/BLK WIRE YEL/BLU WIRE

4 3 1 2 PPL AUTOMATIC TRANSMISSION ASSEMBLY BLK WIRE BLK/BRN WIRE BLK/YEL WIRE BLU WIRE BLU/YEL WIRE BODY CONTROL MODULE (BEHIND GLOVE BOX) BRAKE PEDAL POSITION SENSOR (ON BRAKE PEDAL BRACKET) BRK APPLY SENS SUP VOL BRK APPLY SENS SIG COMPUTER DATA LINES COMPUTER DATA LINES SYSTEM CONTROL SOLENOID VALVE ASSEMBLY ENGINE CONTROL MODULE (RIGHT FRONT OF ENGINE COMPT) FUSE GRY WIRE HI SPEED GMLAN SERIAL DATA (-) 1 HOT AT ALL TIMES LOCK SHIFT POSI SIG PARK LCK SOL CTRL PARK LOCK SOL CTRL PARK POSITION SWITCH PARK/NEUTRAL SIG (1) PPL RED WIRE RED/WHT WIRE SENS LOW REF SERIAL DATA SYSTEM TRANSMISSION CONTROL MODULE TRANSMISSION INTERNAL MODE SWITCH TRANSMISSION MANUAL SHIFT SWITCH TRANSMISSION SHIFT LEVER TRANSMISSION SHIFT LOCK CONTROL SOLENOID ACTUATOR UNDERHOOD FUSE BLOCK (RIGHT FRONT OF ENGINE COMPT) VIO/BLK WIRE VIO/YEL WIRE WHT WIRE WHT/GRN WIRE WHT/GRY WIRE WHT/RED WIRE WHT/VIO WIRE

3.6L 48 47 68 CLUTCH APPL SENS SIG CLUTCH APPL SENS VOL REF 51 63 RUN/CRANK IGN 1 VOL STARTER ENABLE RLY CTRL AUTOMATIC TRANSMISSION ASSEMBLY (A/T) AUXILIARY UNDERHOOD FUSE BLOCK (RIGHT FRONT OF ENGINE COMPT) BATTERY BATTERY FUSE BLOCK BLK WIRE BLK/GRY WIRE BLK/WHT WIRE BLU WIRE BLU/GRN WIRE BODY CONTROL MODULE (BCM) (BEHIND GLOVE BOX) CLUTCH APPL SENS LOW REF CLUTCH PEDAL POSITION SENSOR (M/T) (ON CLUTCH MASTER CYLINDER PUSH ROD) COMPUTER DATA LINES SYSTEM CONTROL SOLENOID VALVE ASSEMBLY ECM IGN FUSE ENGINE CONTROL MODULE (RIGHT FRONT OF ENGINE COMPT) EXCEPT 3.6L FUSE 5 FUSE 6 GENERATOR GRN WIRE GRY WIRE GRY/RED WIRE HIGH SPEED GMLAN SERIAL DATA (+) HOT W/ IGNITION MAIN RELAY ENERGIZED IGN MODE SW MODE VOL IGNITION MODE SWITCH NCA WIRE PARK/NEUTRAL SIG POWER SUPPLY TRANSFORMER (LEFT REAR CORNER OF LUGGAGE COMPT) RED WIRE RED/YEL WIRE SIG GND STARTER MOTOR STARTER RELAY STRTR FUSE TRANSMISSION CONTROL MODULE TRANSMISSION INTERNAL MODE SWITCH UNDERHOOD FUSE BLOCK (RIGHT FRONT OF ENGINE COMPT) VIO WIRE VIO/GRN WIRE VIO/GRY WIRE W/O STOP/START SYSTEM W/ STOP/START SYSTEM WHT WIRE WHT/GRY WIRE YEL WIRE

BLK WIRE BLU WIRE BLU/VIO WIRE BODY CONTROL MODULE (BEHIND GLOVE BOX) COMPUTER DATA LINES COMPUTER DATA LINES SYSTEM ESCL FUSE BLOCK FUSE (LEFT SIDE OF INSTRUMENT PANEL) GRN WIRE GRN/VIO WIRE HI SPEED GMLAN SERIAL DATA (-) 1 HOT AT ALL TIMES INSTRUMENT PANEL KEYLESS ENTRY CONTROL MODULE (FORWARD OF RIGHT REAR LAMP ASSEMBLY) LOGIC OFF/ACCESSORY VOLT STR COL LOCK SIG +B GND GND GMLAN SERIAL DATA RED/GRY WIRE STEERING COLUMN LOCK MODULE (NEAR BASE OF STEERING COLUMN) STEERING COLUMN LOCK STATUS SIG SYSTEM WHT WIRE

1 2 3 GND 1239 5065 13 14 15 16 17 18 IGN 1 VOLT STOP LP RLY COIL SPLY VOLT 25 24 GMLAN SERIAL DATA (+) GMLAN SERIAL DATA (-) 5185 5186 RIGHT TRAILER PARK LP LEFT TRAILER TURN SIG LP 5189 5190 TRAILER BACKUP LP TRAILER FOG LP BATT POS VOLT BATTERY FUSE BLOCK (ON BATTERY) BCM 4 FUSE BLK WIRE BLU WIRE BLU/WHT WIRE BODY CONTROL MODULE (BEHIND GLOVE BOX) BRN/GRY WIRE BRN/VIO WIRE BRN/YEL WIRE COMPUTER DATA LINES SYSTEM EXTERIOR LAMPS CIRCUIT FROM FRONT WIRE CHANNEL UNDER PASSENGER SEAT) FUSE 1 GRN WIRE GRN/BLU WIRE GRN/WHT WIRE GROUND GRY WIRE HOT AT ALL TIMES HOT W/ IGNITION MAIN RELAY ENERGIZED LEFT TRAILER PARK LAMP PNK/BLK WIRE REAR BODY FUSE BLOCK RED/BLU WIRE RED/GRN WIRE RUN RLY COIL CTRL STOP LAMP RLY COIL SUPPLY VOLTAGE TRAILER BRAKE LP TRAILER CONNECTED SIG TRAILER IGNITION POWER RELAY TRAILER LIGHTING CONTROL MODULE (NEAR BATTERY) TRLR CONN FUSE TRLR FUSE TRLR MDL FUSE TRLR/ SUNSHD FUSE VIO/BRN WIRE VIO/WHT WIRE WHT WIRE YEL/GRY WIRE YEL/WHT WIRE