Cadillac ATS I (2012-2014) turn signal/ multi-function switch Wiring diagrams

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

6 SPEED A/T BATTERY BATTERY CURRENT SENSOR BATTERY SAVER RELAY 1 BLK WIRE BLK/GRY WIRE BLK/WHT WIRE BRN WIRE DATA LINK CONNECTOR IGNITION MODE SWITCH INFLATABLE RESTRAINT SENSING, DIAGNOSTIC MODULE INSIDE REARVIEW MIRROR INSTRUMENT PANEL DIMMER SWITCH LAMP SWITCH BREAKOUT) LEFT FRONT DOME/ READING LAMPS LEFT INSTRUMENT PANEL COURTESY LAMP LEFT STEERING WHEEL CONTROLS SWITCH LEFT SUNSHADE NCA WIRE OVERHEAD CONSOLE ACCENT LAMP REAR COMPARTMENT COURTESY LAMP RED WIRE RED/ BLK WIRE RETAINED ACCESSORY POWER RELAY RIGHT FRONT DOME/ READING LAMPS RIGHT REAR WINDOW DEFOGGER NOISE FILTER RIGHT STEERING WHEEL CONTROLS SWITCH RIGHT SUNSHADE STEERING WHEEL AIR BAG COIL STEERING WHEEL ANGLE SENSOR STEERING WHEEL HEATER STEERING WHEEL HEATING CONTROL MODULE TURN SIGNAL/ MULTI-FUNCTION SWITCH W/ HEATED STEERING WHEEL

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

1 2 7 RF DRL SPLY VOLT LF DRL SPLY VOLT 18 5 HDLP HI BEAM RLY CTRL 8 18 GND LOW REF AMBIENT LIGHT SENS SIG AMBIENT LIGHT/ SUNLOAD SENSOR (UPPER CENTER OF THE INSTRUMENT PANEL) AUXILIARY UNDERHOOD FUSE BLOCK (RIGHT FRONT OF ENGINE BATTERY 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 COMPT) COMPUTER DATA LINES SYSTEM DK BLU WIRE FOG SW FUSE FUSE 6 BLOCK (ON BATTERY) GRN WIRE GRN/BRN WIRE GRY WIRE GRY/BLU WIRE HDLP DIMMER SW HI BEAM SIG HDLP HI LT/RT HDLP LOW BEAM RLY CTRL 3 1 B+ GND HDLP SW FLASH TO PASS SIG HDLP SWITCH ON SIGNAL HDLP SW HDLPS OFF SIG CTRL HEAD PARK AUTO HEADLAMP HIGH BEAM RELAY HEADLAMP LOW BEAM RELAY HOT AT ALL TIMES HOT AT ALL TIMES REAR BODY FUSE BLOCK BCM 3 (LEFT SIDE OF FUSE LUGGAGE COMPT) HVAC CONTROL MODULE (NEAR RIGHT KICK PANEL) LEFT HEADLAMP ASSEMBLY LEFT HEADLAMP BALLAST LEFT HIGH BEAM SOLENOID ACTUATOR LEFT LOW BEAM HEADLAMP LEFT PARK DAYTIME RUNNING LAMP LF AUXILIARY DRL SPLY VOLT REAR FOG LAMP SW SIG LOW SPD GMLAN SER DATA LOWER LEFT PARK/ DAYTIME RUNNING LAMP LOWER RIGHT PARK/ DAYTIME RUNNING LAMP LT HID FUSE NCA WIRE OFF FLASH TO PASS PNK WIRE RED WIRE RED/GRY WIRE RR FOG LAMP SPLY VOLT RT AUXILIARY DRL SPLY VOLT RT HID FUSE TURN SIGNAL/ MULTI-FUNCTION SWITCH UNDERHOOD FUSE BLOCK (RIGHT FRONT OF ENGINE COMPT) WHT WIRE WHT/BLU WIRE WHT/DK GRN WIRE WHT/VIO WIRE YEL WIRE YEL/BRN WIRE YEL/GRY WIRE

1 2 RH LOW BEAM SPLY VOLT LH LOW BEAM SPLY VOLT 18 5 HDLP HI BEAM RLY CTRL 3 1 B+ GND 8 18 GND LOW REF AMBIENT LIGHT SENS SIG AMBIENT LIGHT/ SUNLOAD SENSOR (UPPER CENTER OF THE INSTRUMENT PANEL) AUXILIARY UNDERHOOD FUSE BLOCK BATTERY 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 BLOCK (ON BATTERY) GRN WIRE GRN/BRN WIRE HDLP DIMMER SW HI BEAM SIG HDLP HI LT/RT FUSE HDLP SW FLASH TO PASS SIG HDLP SWITCH ON SIGNAL HDLP SW HDLPS OFF SIG CTRL HEADLAMP HIGH BEAM RELAY HIGH PARK AUTO HOT AT ALL TIMES HOT AT ALL TIMES REAR BODY BCM 3 FUSE BLOCK FUSE (LEFT SIDE OF LUGGAGE COMPT) HVAC CONTROL MODULE (NEAR RIGHT KICK PANEL) LEFT HEADLAMP ASSEMBLY LEFT HIGH BEAM SOLENOID ACTUATOR LEFT LOW BEAM HEADLAMP LOW SPD GMLAN SER DATA NCA WIRE OFF REAR FOG LAMP SW SIG RED WIRE RED/GRY WIRE RR FOG LAMP SPLY VOLT TURN SIGNAL/ MULTI-FUNCTION SWITCH UNDERHOOD FUSE BLOCK (RIGHT FRONT OF ENGINE COMPT) WHT WIRE WHT/BLU 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 NETWORK BUS 4 RR DOOR AJAR SW SIG 2 1 LR DOOR AJAR SW SIG NETWORK BUS 4 22 24 25 HEADLAMP SW GMLAN SERIAL DATA (-) GMLAN SERIAL DATA (+) 4 6 NETWORK BUS 3 RF DOOR AJAR SW SIG ASSEMBLY BLK WIRE BLU WIRE BLU/BLK WIRE BLU/PPL WIRE BODY CONTROL MODULE (BEHIND GLOVE BOX) BRAKE FLUID LEVEL SWITCH (TOP OF THE BRAKE FLUID RESERVOIR) BRN WIRE COMPUTER DATA LINES SYSTEM DRIVER DOOR LATCH ASSEMBLY DRIVER WINDOW MOTOR GRN/GRY WIRE GRN/YEL WIRE GRY WIRE GRY/RED WIRE HEAD PARK AUTO OFF HI SPD GMLAN SERIAL DATA + HI SPD GMLAN SERIAL DATA - INTERIOR LIGHTS LEFT REAR DOOR LATCH ASSEMBLY LEFT REAR WINDOW SWITCH LF DOOR AJAR SW SIG NETWORK BUS 3 M/T PARK BRAKE CONTROL SWITCH (ON PARK BRAKE PARK BRK APPLY SW SIG PARK BRK RELEASE SW SIG PARK BRK SW SPLY VOLT PARK BRK APPLY SW VOLT REF PARK RELEASE SW VOLT REF PARK BRK SW SIG PARKING BRAKE CONTROL MODULE (BEHIND LEFT REAR WHEELHOUSE PANEL LINER) PASSENGER DOOR LATCH ASSEMBLY PASSENGER WINDOW MOTOR RIGHT REAR DOOR LATCH ASSEMBLY RIGHT REAR WINDOW SWITCH SYSTEM TURN SIGNAL/ MULTI-FUNCTION SWITCH WHT WIRE YEL WIRE YEL/RED WIRE