Cadillac ATS I (2012-2014) engine control module (right front of engine compt) Wiring diagrams

1 2 GND BATT POSITIVE VOL 19 18 3531 3532 NEUTRAL GEAR SENSOR RETURN NEUTRAL GEAR SENSOR SUPPLY 4 5 BATT POSITIVE VOL RUN/CRANK IGN 1 VOL AUTO STOP START INDICATOR CTRL AUTO STOP START SWITCH SIGNAL AUXILIARY UNDERHOOD FUSE BLOCK (RIGHT FRONT ENGINE COMPT) BATT POSITIVE VOL BATT RVC FUSE BATTERY BATTERY FUSE BLOCK (ON BATTERY) BATTERY FUSE FUSE HOLDER HOLDER BATTERY SENSOR MODULE (LEFT REAR OF LUGGAGE COMPT) 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 (RIGHT FRONT OF ENGINE COMPT) FUSE FUSE 4 FUSE 5 FUSE 6 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 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 SIGNAL (1) NEUTRAL POSITION SENSOR (LEFT REAR OF TRANSMISSION) POWER DISTRIBUTION SYSTEM POWER SUPPLY TRANSFORMER (LEFT REAR CORNER OF LUGGAGE COMPT) REAR BODY FUSE BLOCK RED WIRE RED/BLU WIRE RED/BRN WIRE RED/YEL WIRE STARTER MOTOR SYSTEM 7 23 25 27 HOOD STATUS A SIGNAL HOOD LATCH SENSOR LOW REF TRLR/ SUNSHD VIO WIRE VIO/BLK WIRE WHT WIRE WHT/GRN WIRE YEL WIRE

1 2 3 4 ACTR RTN ACTR TRANSMIT SIG ACTR RECEIVE SIG ACTR SPLY VOLT 1 2 4 DR LOCK CTRL DR LOCK CTRL (2) ACTR UNLOCK CTRL 2 3 19 15 4 GROUND BAT POS VOLT SW LOCK SIG SW UNLOCK SIG B+ 2.0L 24 20 HOOD STATUS B SIG B+ 25 24 GMLAN SERIAL DATA (+) GMLAN SERIAL DATA (-) 2500 2501 COMPUTER DATA LINES SYSTEM 27 16 ACTR TRANSMIT SIG ACTR RETURN 3 18 13 19 B+ HEAD LP HIGH RLY CTRL HEAD LP LOW RLY CTRL HORN RLY CTRL 309 709 EXTERIOR LIGHTS SYSTEM 5 21 IND DIM CTRL SCTY IND CTRL 5 6 RH PARK LP SPLY VOLT LH PARK LP SPLY VOLT ACTR RECEIVE SIG ACTR SPLY VOLT ANTENNA (UPPER PART OF REAR WINDOW) BCM 5 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 OG RFR COMPUTER DATA LINES SYSTEM DRIVER DOOR LATCH ASSEMBLY DRIVER WINDOW MOTOR ENGINE CONTROL MODULE (RIGHT FRONT OF ENGINE COMPT) FM/RFR GRN WIRE GRY WIRE GRY/BLK WIRE GRY/BRN WIRE GRY/GRN WIRE GRY/WHT WIRE HEADLIGHTS SYSTEM HORNS SYSTEM HOOD STATUS A SIGNAL HOT AT ALL TIMES HOT AT ALL TIMES UNDERHOOD FUSE BLOCK BCM 7 (RIGHT FRONT OF FUSE ENGINE COMPT) HOT W/ IGNITION MAIN RELAY ENERGIZED AOS DISPLAY/ MIL IGN FUSE LEFT REAR SIG LF DR AJAR SW SIG LOGIC NCA WIRE OG COAX RADIO ANTENNA AMPLIFIER REAR RED/BRN WIRE RED/GRN WIRE RED/GRY WIRE RED/YEL WIRE REMOTE CONTROL DOOR LOCK RECEIVER (RIGHT REAR SIDE OF REAR WINDOW SHELF) RFR SCTY LOCK RLY CTRL SENS LOW REF HOOD LATCH SERIAL DATA VIO/GRY WIRE VIO/YEL WIRE W/ START/STOP SYSTEM W/O START/STOP SYSTEM WHT WIRE WHT/VIO WIRE YEL BLK/ WIRE YEL WIRE YEL/GRN WIRE YEL/VIO WIRE

2.0L 39 40 SERIAL DATA (+) SERIAL DATA (-) AMBIENT LIGHT/SUNLOAD SENSOR (UPPER CENTER OF THE INSTRUMENT PANEL) 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 (RIGHT FRONT OF ENGINE COMPT) 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 (NEAR RIGHT KICK PANEL) LOGIC RIGHT REAR WINDOW SWITCH NCA WIRE REAR COMPARTMENT FUSE BLOCK (LEFT SIDE OF LUGGAGE COMPT) RED/BLU WIRE RIGHT REAR DOOR LATCH ASSEMBLY RR DR AJAR SW SIG THEFT MDL/ UGDO/RAIN SNSR FUSE VIO/YEL WIRE W/ START/STOP SYSTEM W/O START/STOP SYSTEM WHT WIRE WHT/BLU WIRE WIRE CHANNEL UNDER LEFT SIDE OF REAR SEAT) YEL WIRE

1 2 3 4 ACTR RTN ACTR TRANSMIT SIG ACTR RECEIVE SIG ACTR SPLY VOLT 1 2 4 DR LOCK CTRL DR LOCK CTRL (2) ACTR UNLOCK CTRL 2 3 19 15 4 GROUND BAT POS VOLT SW LOCK SIG SW UNLOCK SIG B+ 2.0L 24 20 HOOD STATUS B SIG B+ 25 24 GMLAN SERIAL DATA (+) GMLAN SERIAL DATA (-) 2500 2501 COMPUTER DATA LINES SYSTEM 27 16 ACTR TRANSMIT SIG ACTR RETURN 3 18 13 19 B+ HEAD LP HIGH RLY CTRL HEAD LP LOW RLY CTRL HORN RLY CTRL 309 709 EXTERIOR LIGHTS SYSTEM 5 21 IND DIM CTRL SCTY IND CTRL 5 6 RH PARK LP SPLY VOLT LH PARK LP SPLY VOLT ACTR RECEIVE SIG ACTR SPLY VOLT ANTENNA (UPPER PART OF REAR WINDOW) BCM 5 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 OG RFR COMPUTER DATA LINES SYSTEM DRIVER DOOR LATCH ASSEMBLY DRIVER WINDOW MOTOR ENGINE CONTROL MODULE (RIGHT FRONT OF ENGINE COMPT) FM/RFR GRN WIRE GRY WIRE GRY/BLK WIRE GRY/BRN WIRE GRY/GRN WIRE GRY/WHT WIRE HEADLIGHTS SYSTEM HORNS SYSTEM HOOD STATUS A SIGNAL HOT AT ALL TIMES HOT AT ALL TIMES UNDERHOOD FUSE BLOCK BCM 7 (RIGHT FRONT OF FUSE ENGINE COMPT) HOT W/ IGNITION MAIN RELAY ENERGIZED AOS DISPLAY/ MIL IGN FUSE LEFT REAR SIG LF DR AJAR SW SIG LOGIC NCA WIRE OG COAX RADIO ANTENNA AMPLIFIER REAR RED/BRN WIRE RED/GRN WIRE RED/GRY WIRE RED/YEL WIRE REMOTE CONTROL DOOR LOCK RECEIVER (RIGHT REAR SIDE OF REAR WINDOW SHELF) RFR SCTY LOCK RLY CTRL SENS LOW REF HOOD LATCH SERIAL DATA VIO/GRY WIRE VIO/YEL WIRE W/ START/STOP SYSTEM W/O START/STOP SYSTEM WHT WIRE WHT/VIO WIRE YEL BLK/ WIRE YEL WIRE YEL/GRN WIRE YEL/VIO WIRE

2.0L 39 40 SERIAL DATA (+) SERIAL DATA (-) AMBIENT LIGHT/SUNLOAD SENSOR (UPPER CENTER OF THE INSTRUMENT PANEL) 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 (RIGHT FRONT OF ENGINE COMPT) 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 (NEAR RIGHT KICK PANEL) LOGIC RIGHT REAR WINDOW SWITCH NCA WIRE REAR COMPARTMENT FUSE BLOCK (LEFT SIDE OF LUGGAGE COMPT) RED/BLU WIRE RIGHT REAR DOOR LATCH ASSEMBLY RR DR AJAR SW SIG THEFT MDL/ UGDO/RAIN SNSR FUSE VIO/YEL WIRE W/ START/STOP SYSTEM W/O START/STOP SYSTEM WHT WIRE WHT/BLU WIRE WIRE CHANNEL UNDER LEFT SIDE OF REAR SEAT) YEL WIRE

1 2 3 4 5 6 7 8 9 10 11 12 13 14 15 16 17 18 19 BRAKE VACUUM SENS LOW REF 2500 2501 COMPUTER DATA LINES SYSTEM 5 V REF A/C COMPRESSOR CLUTCH RLY CTRL A/C REFRIGERANT PRESS SENS LO REF SENS 2 LOW REF A/C REFRIGERANT PRESSURE SENSOR (NEAR THE LOWER RIGHT SIDE OF THE A/C CONDENSER) A/T ACCESSORY WAKEUP SERIAL DATA AIR CONDITIONING SYSTEM APP LO REF APP SENS SIG (2) BLK/BLU WIRE BLK/BRN WIRE BLK/GRN WIRE BLK/GRY WIRE BLK/VIO WIRE BLK/YEL WIRE BLU WIRE BLU/BRN WIRE BLU/GRN WIRE BLU/GRY WIRE BLU/VIO WIRE BLU/WHT WIRE BRAKE PEDAL POSITION SENSOR (ON BRAKE PEDAL BRACKET) BRN/RED WIRE BRN/WHT WIRE CHECK ENGINE IND CTRL 5 VOLT REF SENS SIG CLUTCH PEDAL POSITION SENSOR (ON CLUTCH MASTER CYLINDER PUSH ROD) CNSTR VENT COMPUTER DATA LINES SYSTEM COOLING FANS SYSTEM CRUISE CONTROL SYSTEM ECM BATT FUSE ENGINE CONTROL MODULE (RIGHT FRONT OF ENGINE COMPT) ENGINE COOLANT TEMPERATURE SENSOR 2 (2.5L) EVAP CANISTER VENT SOL CTRL EVAPORATIVE EMISSION VENT SOLENOID VALVE (RIGHT REAR FRAME NEAR FUEL TANK) FROM FRONT WIRE CHANNEL UNDER PASSENGER SEAT) FUEL PUMP PRIMARY RELAY CONTROL FUEL TANK PRESSURE SENS SIG 5-V REF FUSE GRN WIRE GRN/BLU WIRE GRN/GRY WIRE GRN/WHT WIRE GRY/RED WIRE HI SPD GMLAN SERIAL DATA + HI SPD GMLAN SERIAL DATA - HOT AT ALL TIMES HOT AT ALL TIMES REAR BODY FUSE BLOCK (LEFT SIDE OF FUEL PUMP FSCM FUSE LOW REF LUGGAGE COMPT) M/T POWERTRAIN MAIN RLY FUSED SPLY (2) STARTER ENABLE RLY CTRL POWERTRAIN RLY COIL CTRL POWERTRAIN MAIN RLY FUSED SPLY (1) PRE-THROTTLE AIR PRESS, TEMP SIG 5-V REF APP SENS SIG (1) RED/BRN WIRE RED/GRN WIRE RED/VIO WIRE RUN/CRANK IGN 1 VOLT BATT POS VOLT APP LOW REF STARTING/CHARGING SYSTEM VIO/BLU WIRE VIO/GRN WIRE VIO/GRY WIRE VIO/YEL WIRE WHT WIRE WHT/BLK WIRE WHT/BLU WIRE WHT/GRN WIRE WHT/GRY WIRE WHT/RED WIRE YEL WIRE YEL/BLK WIRE YEL/RED WIRE YEL/VIO WIRE YEL/WHT WIRE

ACTUATOR HI CTRL ACTUATOR LOW CTRL ANTI-THEFT SYSTEM BLK WIRE BLK/BLU WIRE BLK/BRN WIRE BLK/GRN WIRE BLK/GRY WIRE BLK/VIO WIRE BLK/YEL WIRE BLU WIRE BLU/VIO WIRE BLU/WHT WIRE BRN WIRE BRN/WHT WIRE CAM EXHT SOL (1) CAM INTKE SOL (1) CAM POS EXHT SPLY CAM POS INTKE SENS CAM POS INTKE SPLY CHK ENG IND CTRL COMPUTER DATA LINES SYSTEM CRNK SENS SIG DATA DFI HI VOL SPLY 1 DFI HI VOL SPLY 2 DFI HI VOL SPLY 3 DFI HI VOL SPLY 4 ECT SENS SIG EMISSION PURGE SOLENOID VALVE BREAKOUT) ENGINE CONTROL MODULE (RIGHT FRONT OF ENGINE COMPT) GRN WIRE GRN/BLU WIRE GRN/RED WIRE GRY/BLU WIRE GRY/VIO WIRE GRY/YEL WIRE HOOD STATUS SIG IGN 1 VOLT IGN CTRL (1) IGN CTRL (2) IGN CTRL (3) IGN CTRL (4) IGNITION COIL 1 IGNITION COIL 2 IGNITION COIL 3 IGNITION COIL 4 INSTRUMENT CLUSTER LOGIC LOW REF LOW REF BANK 1 MALFUNCTION IND LAMP NCA WIRE NEU GEAR SENS RTN NEU GEAR SENS SPLY NEUTRAL POSITION SENSOR (M/T) (LEFT REAR OF TRANSMISSION) OIL PRESS SENS SIG RED WIRE SENS LO REF SERIAL SPARK PLUG SPLY VOLT VIO/BLK WIRE VIO/BLU WIRE VIO/BRN WIRE VIO/GRY WIRE WHT/GRN WIRE WHT/RED WIRE YEL WIRE YEL/BLU WIRE YEL/BRN WIRE YEL/VIO WIRE YEL/WHT WIRE

1 2 3 4 5 6 7 8 9 10 11 12 13 14 15 16 17 18 19 BRAKE VACUUM SENS LOW REF 2500 2501 COMPUTER DATA LINES SYSTEM 5 V REF A/C COMPRESSOR CLUTCH RLY CTRL A/C REFRIGERANT PRESS SENS LO REF SENS 2 LOW REF A/C REFRIGERANT PRESSURE SENSOR (NEAR THE LOWER RIGHT SIDE OF THE A/C CONDENSER) A/T ACCESSORY WAKEUP SERIAL DATA AIR CONDITIONING SYSTEM APP LO REF APP SENS SIG (2) BLK/BLU WIRE BLK/BRN WIRE BLK/GRN WIRE BLK/GRY WIRE BLK/VIO WIRE BLK/YEL WIRE BLU WIRE BLU/BRN WIRE BLU/GRN WIRE BLU/GRY WIRE BLU/VIO WIRE BLU/WHT WIRE BRAKE PEDAL POSITION SENSOR (ON BRAKE PEDAL BRACKET) BRN/RED WIRE BRN/WHT WIRE CHECK ENGINE IND CTRL 5 VOLT REF SENS SIG CLUTCH PEDAL POSITION SENSOR (ON CLUTCH MASTER CYLINDER PUSH ROD) CNSTR VENT COMPUTER DATA LINES SYSTEM COOLING FANS SYSTEM CRUISE CONTROL SYSTEM ECM BATT FUSE ENGINE CONTROL MODULE (RIGHT FRONT OF ENGINE COMPT) ENGINE COOLANT TEMPERATURE SENSOR 2 (2.5L) EVAP CANISTER VENT SOL CTRL EVAPORATIVE EMISSION VENT SOLENOID VALVE (RIGHT REAR FRAME NEAR FUEL TANK) FROM FRONT WIRE CHANNEL UNDER PASSENGER SEAT) FUEL PUMP PRIMARY RELAY CONTROL FUEL TANK PRESSURE SENS SIG 5-V REF FUSE GRN WIRE GRN/BLU WIRE GRN/GRY WIRE GRN/WHT WIRE GRY/RED WIRE HI SPD GMLAN SERIAL DATA + HI SPD GMLAN SERIAL DATA - HOT AT ALL TIMES HOT AT ALL TIMES REAR BODY FUSE BLOCK (LEFT SIDE OF FUEL PUMP FSCM FUSE LOW REF LUGGAGE COMPT) M/T POWERTRAIN MAIN RLY FUSED SPLY (2) STARTER ENABLE RLY CTRL POWERTRAIN RLY COIL CTRL POWERTRAIN MAIN RLY FUSED SPLY (1) PRE-THROTTLE AIR PRESS, TEMP SIG 5-V REF APP SENS SIG (1) RED/BRN WIRE RED/GRN WIRE RED/VIO WIRE RUN/CRANK IGN 1 VOLT BATT POS VOLT APP LOW REF STARTING/CHARGING SYSTEM VIO/BLU WIRE VIO/GRN WIRE VIO/GRY WIRE VIO/YEL WIRE WHT WIRE WHT/BLK WIRE WHT/BLU WIRE WHT/GRN WIRE WHT/GRY WIRE WHT/RED WIRE YEL WIRE YEL/BLK WIRE YEL/RED WIRE YEL/VIO WIRE YEL/WHT WIRE

ACTUATOR HI CTRL ACTUATOR LOW CTRL ANTI-THEFT SYSTEM BLK WIRE BLK/BLU WIRE BLK/BRN WIRE BLK/GRN WIRE BLK/GRY WIRE BLK/VIO WIRE BLK/YEL WIRE BLU WIRE BLU/VIO WIRE BLU/WHT WIRE BRN WIRE BRN/WHT WIRE CAM EXHT SOL (1) CAM INTKE SOL (1) CAM POS EXHT SPLY CAM POS INTKE SENS CAM POS INTKE SPLY CHK ENG IND CTRL COMPUTER DATA LINES SYSTEM CRNK SENS SIG DATA DFI HI VOL SPLY 1 DFI HI VOL SPLY 2 DFI HI VOL SPLY 3 DFI HI VOL SPLY 4 ECT SENS SIG EMISSION PURGE SOLENOID VALVE BREAKOUT) ENGINE CONTROL MODULE (RIGHT FRONT OF ENGINE COMPT) GRN WIRE GRN/BLU WIRE GRN/RED WIRE GRY/BLU WIRE GRY/VIO WIRE GRY/YEL WIRE HOOD STATUS SIG IGN 1 VOLT IGN CTRL (1) IGN CTRL (2) IGN CTRL (3) IGN CTRL (4) IGNITION COIL 1 IGNITION COIL 2 IGNITION COIL 3 IGNITION COIL 4 INSTRUMENT CLUSTER LOGIC LOW REF LOW REF BANK 1 MALFUNCTION IND LAMP NCA WIRE NEU GEAR SENS RTN NEU GEAR SENS SPLY NEUTRAL POSITION SENSOR (M/T) (LEFT REAR OF TRANSMISSION) OIL PRESS SENS SIG RED WIRE SENS LO REF SERIAL SPARK PLUG SPLY VOLT VIO/BLK WIRE VIO/BLU WIRE VIO/BRN WIRE VIO/GRY WIRE WHT/GRN WIRE WHT/RED WIRE YEL WIRE YEL/BLU WIRE YEL/BRN WIRE YEL/VIO WIRE YEL/WHT WIRE

BLK/BRN WIRE BLK/GRN WIRE BLK/GRY WIRE BLK/VIO WIRE BLK/WHT WIRE BLU WIRE BLU/GRY WIRE BLU/WHT WIRE BRN WIRE BRN/WHT WIRE CRANKSHAFT POSITION SENSOR (LOWER LEFT REAR OF THE ENGINE) DFI HI VOL SPLY 1 DFI HI VOL SPLY 2 DFI HI VOL SPLY 3 DFI HI VOL SPLY 4 ENGINE CONTROL MODULE (RIGHT FRONT OF ENGINE COMPT) FUEL INJECTOR 1 FUEL INJECTOR 2 FUEL INJECTOR 3 FUEL INJECTOR 4 GRN WIRE GRN/GRY WIRE GRY/BLU WIRE GRY/YEL WIRE HOT AT ALL TIMES BATTERY FUSE BLOCK (ON BATTERY) FUSE INTAKE CAMSHAFT POSITION SENSOR (FRONT OF CYLINDER HEAD) LOW REF RED WIRE VIO/BLK WIRE VIO/BLU WIRE VIO/BRN WIRE WHT/RED WIRE YEL/VIO WIRE YEL/WHT WIRE