Cadillac ATS I (2012-2014) (above left headlight) Wiring diagrams

AFL IND AFS AHL/ PED PROT FUSE AHL FUSE BLK WIRE BLK/BLU WIRE BLK/GRN WIRE BLU WIRE BLU/RED WIRE BRN WIRE BRN/WHT WIRE COMPUTER DATA LINES SYSTEM DK GRN WIRE FROM HOOD AJAR SWITCH BREAKOUT) FRONT SUSPENSION HEIGHT SENSOR (IF EQUIPPED) GMLAN SERIAL GRN WIRE GRN/VIO WIRE GRN/WHT WIRE HEADLAMP CONTROL MODULE (FORWARD OF RIGHT REAR LAMP ASSEMBLY) HEADLAMP HORIZONTAL LOGIC MOTOR HEADLAMP HORIZONTAL MOTOR LOGIC HEADLAMP LEVELING ACTUATOR LOGIC HEADLAMP LEVELING LOGIC ACTUATOR HOOD AJAR SWITCH BREAKOUT) HOT AT ALL TIMES INSTRUMENT CLUSTER LEFT HEADLAMP ASSEMBLY LF STRUT POS SENS LOW REF LF STRUT POS SENS SIG LF STRUT POS SENS VOLT REF LOGIC LR STRUT POS SENS LOW REF LR STRUT POS SENS SIG LR STRUT POS SENS VOLT REF NETWORK BUS 6 ORG/ WIRE REAR SUSPENSION HEIGHT SENSOR (IF EQUIPPED) RED WIRE RED/BRN WIRE RED/YEL WIRE RIGHT HEADLAMP ASSEMBLY SERIAL DATA COMMUNICATION ENABLE UNDERHOOD FUSE BLOCK (RIGHT FRONT OF ENGINE COMPT) WHT WIRE WHT/BLU WIRE YEL WIRE YEL/RED WIRE

1 2 3 4 5 6 7 8 SERIAL DATA (-) (4) SERIAL DATA (+) (4) GND 1 2 3 4 GMLAN SERIAL DATA (-) 4 GMLAN SERIAL DATA (+) 4 14 15 16 GMLAN SERIAL DATA (-) 4 24 25 GMLAN SERIAL DATA (-) GMLAN SERIAL DATA (+) 3 4 5 6 7 8 9 10 11 12 LANE DEP WARN IND CTRL 3813 3811 COMPUTER DATA LINES SYSTEM 8 7 6 GND SERIAL DATA (+) (4) SERIAL DATA (-) (4) ACTIVE SAFETY CONTROL MODULE (FORWARD OF LEFT REAR LAMP ASSEMBLY) BATT POSITIVE VOLT RR PRK ASS LED DIS SIG BCM 5 FUSE BLK WIRE BLK/WHT WIRE BLU WIRE BLU/VIO WIRE BLU/YEL WIRE BODY CONTROL MODULE (BEHIND GLOVE BOX) BREAKOUT) BRN/VIO WIRE COMPUTER DATA LINES SYSTEM DOOR LOCKS SYSTEM FROM FRONT WIRE CHANNEL UNDER PASSENGER SEAT) FRONT FASCIA) FRONT, REAR PARK ASSIST IND FRONT, REAR PARK ASSIST SWITCH FRONTVIEW CAMERA MODULE GMLAN SERIAL DATA (+) 4 LOW GMLAN SERIAL DATA GRN WIRE GRN/BRN WIRE GRY/GRN WIRE GRY/VIO WIRE GRY/WHT WIRE HOT AT ALL TIMES IND DIM CTRL INSTRUMENT PANEL MULTI- FUNCTION SWITCH LANE DEP WARN SW SIG LDW IND LDW SWITCH LONG RANGE RADAR SENSOR MODULE (RIGHT FRONT OF VEHICLE) OBJ SENS SPLY VOLT (2) REAR BODY FUSE BLOCK RED/BRN WIRE RED/GRN WIRE SBZA/ LDW/ EOCM FUSE SENS SPLY VOLT (1) SENS SPLY VOLT (2) SERIAL DATA (+) (4) SERIAL DATA (-) (4) SERIAL DATA (-) (4) SERIAL DATA (+) (4) GND SERIAL DATA (-) (4) SERIAL DATA (+) (4) SERIAL DATA (-) (4) SERIAL DATA (+) (4) SERIAL DATA COMM ENABLE SERIAL DATA COMM ENABLE GMLAN SERIAL DATA (-) 1 GMLAN SERIAL DATA (-) 1 SHORT RANGE LEFT FRONT RADAR SENSOR MODULE (LEFT FRONT OF VEHICLE) SHORT RANGE REAR RADAR SENSOR MODULE (REAR MIDDLE OF VEHICLE) SHORT RANGE RIGHT FRONT RADAR SENSOR MODULE (RIGHT FRONT OF VEHICLE) UNDERHOOD FUSE BLOCK (RIGHT FRONT OF ENGINE COMP) W/O HEAD-UP DISPLAY W/ HEAD-UP DISPLAY WHT WIRE WHT/BLU WIRE WIRE CHANNEL UNDER LEFT SIDE OF REAR SEAT)

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

ACTIVE GRILLE AIR SHUTTER ACTUATOR BLK WIRE BLK/WHT WIRE BRAKE BOOSTER PUMP MOTOR RELAY (3.6L) BRN WIRE DK BLU WIRE FROM FRONT OBJECT SENSOR (RIGHT MIDDLE)) FRONT FASCIA) HEADLAMP WASHER PUMP IGNITION COIL 1 IGNITION COIL 3 IGNITION COIL 5 LEFT FRONT LEFT PARK/ TURN SIGNAL DAYTIME LAMP RUNNING LAMP LEFT FRONT SIDE MARKER LAMP LEFT HEADLAMP ASSEMBLY LEFT HEADLAMP BALLAST LEFT HEADLAMP HORIZONTAL MOTOR LEFT HEADLAMP LEVELING ACTUATOR LEFT HIGH LEFT LOW BEAM BEAM SOLENOID HEADLAMP ACTUATOR LEFT RIGHT LOWER LOWER PARK/ PARK/ DAYTIME DAYTIME RUNNING RUNNING LAMP LAMP NCA WIRE POWER STEERING CONTROL MODULE RIGHT FRONT SIDE MARKER LAMP W/ HID W/ HIGH PRESSURE WASHER-HEADLAMP W/O HID W/O HIGH PRESSURE WASHER-HEADLAMP WHT/ BLK WIRE WINDSHIELD WASHER FLUID LEVEL SWITCH WINDSHIELD WASHER PUMP WINDSHIELD WASHER PUMP RELAY WINDSHIELD WIPER MOTOR WINDSHIELD WIPER MOTOR CONNECTOR WINDSHIELD WIPER RELAY

AMBIENT LIGHT SENS SIG AMBIENT LIGHT/ SUNLOAD SENSOR AUTO AUXILIARY UNDERHOOD FUSE BLOCK BATTERY FUSE BLOCK BCM 3 FUSE BLK WIRE BLK/GRN WIRE BLK/WHT WIRE BLU/GRY WIRE BODY CONTROL MODULE (BEHIND GLOVE BOX) BRN WIRE BRN/VIO WIRE BRN/YEL WIRE COMPUTER DATA LINES SYSTEM DK BLU WIRE FLASH TO PASS FOG SW FUSE 6 GRN WIRE GRN/BRN WIRE GRY WIRE GRY/BLU WIRE HDLP DIMMER SW HI BEAM SIG HDLP HI BEAM RLY CTRL HDLP HI LT/RT FUSE HDLP LOW BEAM RLY CTRL HDLP SW FLASH TO PASS SIG HDLP SW HDLPS OFF SIG CTRL HDLP SWITCH ON SIGNAL HEAD HEADLAMP HIGH BEAM RELAY HEADLAMP LOW BEAM RELAY HOT AT ALL TIMES HVAC CONTROL MODULE LEFT HEADLAMP ASSEMBLY LEFT HEADLAMP BALLAST LEFT HIGH BEAM SOLENOID ACTUATOR LEFT LOW BEAM HEADLAMP LEFT PARK DAYTIME RUNNING LAMP LF DRL SPLY VOLT LF AUXILIARY DRL SPLY VOLT LOW REF LOW SPD GMLAN SER DATA LOWER LEFT PARK/ DAYTIME RUNNING LAMP LOWER RIGHT PARK/ DAYTIME RUNNING LAMP LT HID FUSE NCA WIRE OFF ON BATTERY) PARK PNK WIRE REAR BODY FUSE BLOCK REAR FOG LAMP SW SIG RED WIRE RED/GRY WIRE RF DRL SPLY VOLT RR FOG LAMP SPLY VOLT RT AUXILIARY DRL SPLY VOLT RT HID FUSE TURN SIGNAL/ MULTI-FUNCTION SWITCH UNDERHOOD FUSE BLOCK WHT WIRE WHT/BLU WIRE WHT/DK GRN WIRE WHT/VIO WIRE YEL WIRE YEL/BRN WIRE YEL/GRY WIRE

AMBIENT LIGHT SENS SIG AMBIENT LIGHT/ SUNLOAD SENSOR AUTO AUXILIARY UNDERHOOD FUSE BLOCK BATTERY FUSE BLOCK BCM 3 FUSE BLK WIRE BLK/GRN WIRE BLK/WHT WIRE BLU/GRY WIRE BODY CONTROL MODULE (BEHIND GLOVE BOX) BRN/VIO WIRE COMPUTER DATA LINES SYSTEM FLASH TO PASS FOG LAMP SW FUSE 6 GRN WIRE GRN/BRN WIRE HDLP DIMMER SW HI BEAM SIG HDLP HI BEAM RLY CTRL HDLP HI LT/RT FUSE HDLP SW FLASH TO PASS SIG HDLP SW HDLPS OFF SIG CTRL HDLP SWITCH ON SIGNAL HEADLAMP HIGH BEAM RELAY HOT AT ALL TIMES HVAC CONTROL MODULE LEFT HEADLAMP ASSEMBLY LEFT HIGH BEAM SOLENOID ACTUATOR LEFT LOW BEAM HEADLAMP LH LOW BEAM SPLY VOLT LOW REF LOW SPD GMLAN SER DATA NCA WIRE OFF ON BATTERY) PARK REAR BODY FUSE BLOCK REAR FOG LAMP SW SIG RED WIRE RED/GRY WIRE RH LOW BEAM SPLY VOLT RR FOG LAMP SPLY VOLT TURN SIGNAL/ MULTI-FUNCTION SWITCH UNDERHOOD FUSE BLOCK WHT WIRE WHT/BLU WIRE WHT/VIO WIRE YEL WIRE YEL/BRN WIRE YEL/GRY WIRE

1 2 3 RTN LIN BUS 11 SPLY VOLT 2.0L 2500 2501 COMPUTER DATA LINES SYSTEM 39 40 SERIAL DATA (+) SERIAL DATA (-) BAT POS VOLT BCM 7 FUSE BLK WIRE BLK/ (OR BLK WIRE BLK/YEL WIRE BLU WIRE BODY CONTROL MODULE (BEHIND GLOVE BOX) BRN/GRN WIRE COMPUTER DATA LINES SYSTEM COMPUTER DATA LINES SYSTEM 87 76 65 DRIVER SECURITY INFORMATION IND CENTER DISPLAY ENGINE CONTROL MODULE (RIGHT FRONT OF ENGINE COMPT) GRN RED/ WIRE GRN WIRE GRN/GRY WIRE GRN/VIO WIRE GROUND GRY/BLK WIRE HOOD AJAR SWITCH (AT HOOD LATCH) HOOD LATCH SNSR LOW REF HOOD SIG HOOD STATUS A SIGNAL HOT AT ALL TIMES INSTRUMENT CLUSTER LOGIC NCA WIRE RED/GRN WIRE SERIAL DATA UNDERHOOD FUSE BLOCK (RIGHT FRONT OF ENGINE COMPT) W/ START/STOP SYSTEM W/O START/STOP SYSTEM WHT WIRE YEL BLK/ WIRE YEL WIRE

2.0L A SIGNAL ACTR RECEIVE SIG ACTR RETURN ACTR RTN ACTR SPLY VOLT ACTR TRANSMIT SIG ACTR UNLOCK CTRL AMBIENT LIGHT/SUNLOAD SENSOR ANTENNA AOS DISPLAY/ MIL IGN FUSE BAT POS VOLT BCM 5 FUSE BCM 7 FUSE BLK WIRE BLK/GRN WIRE BLK/YEL WIRE BLU WIRE BLU/BRN WIRE BLU/VIO WIRE BLU/WHT WIRE BODY CONTROL MODULE (BEHIND GLOVE BOX) BRN WIRE BRN/GRN WIRE BRN/PPL WIRE BRN/VIO WIRE BRN/WHT WIRE BRN/YEL WIRE COAX COMPUTER DATA LINES SYSTEM DR LOCK CTRL DR LOCK CTRL (2) DRIVER DOOR LATCH ASSEMBLY DRIVER WINDOW MOTOR ENGINE CONTROL MODULE FM/RFR GMLAN SERIAL DATA GRN WIRE GROUND GRY WIRE GRY/BLK WIRE GRY/BRN WIRE GRY/GRN WIRE GRY/WHT WIRE HEAD LP HIGH RLY CTRL HEAD LP LOW RLY CTRL HEADLIGHTS SYSTEM HOOD LATCH HOOD STATUS HOOD STATUS B SIG HORN RLY CTRL HORNS SYSTEM HOT AT ALL TIMES HOT W/ IGNITION MAIN RELAY ENERGIZED HVAC CONTROL MODULE IND DIM CTRL LEFT REAR SIG LF DR AJAR LH PARK LP SPLY VOLT LOGIC NCA WIRE OG COAX RADIO ANTENNA AMPLIFIER REAR COMPARTMENT LID LATCH RED/BRN WIRE RED/GRN WIRE RED/GRY WIRE RED/YEL WIRE REMOTE CONTROL DOOR LOCK RECEIVER RFR RH PARK LP SPLY VOLT RIGHT REAR SIG SCTY IND CTRL SCTY LOCK RLY CTRL SENS LOW REF SERIAL DATA SW LOCK CTRL SW LOCK SIG SW SIG SW UNLOCK CTRL SW UNLOCK SIG UNDERHOOD FUSE BLOCK VIO/GRY WIRE VIO/YEL WIRE W/ START/STOP SYSTEM W/O START/STOP SYSTEM WHT WIRE WHT/VIO WIRE YEL WIRE YEL/GRN WIRE YEL/VIO WIRE

2.0L AMBIENT LIGHT/SUNLOAD SENSOR BLK WIRE BLK/GRN WIRE BLK/YEL WIRE BLU WIRE BLU/BRN WIRE BLU/WHT WIRE BRN WIRE BRN/GRN WIRE BRN/YEL WIRE CHILD SECURITY LOCK DISABLE RELAY COMPUTER DATA LINES SYSTEM DOOR DEAD LOCK RELAY ENGINE CONTROL MODULE GRN WIRE GRY WIRE GRY/BLK WIRE GRY/GRN WIRE HOOD LATCH SNSR LOW REF HOOD STATUS A SIGNAL HOT W/ BATTERY SAVER RELAY 2 ENERGIZED HVAC CONTROL MODULE LOGIC NCA WIRE REAR COMPARTMENT FUSE BLOCK RED/BLU WIRE RIGHT REAR DOOR LATCH ASSEMBLY RIGHT REAR WINDOW SWITCH RR DR AJAR SW SIG SERIAL DATA THEFT MDL/ UGDO/RAIN SNSR FUSE VIO/YEL WIRE W/ START/STOP SYSTEM W/O START/STOP SYSTEM WHT WIRE WHT/BLU WIRE YEL WIRE