Cadillac ELR I (2013-2015) engine control module (behind left end of front fascia) Wiring diagrams

BLK WIRE BLK/BRN WIRE BLK/GRY WIRE BODY CONTROL MODULE (RIGHT SIDE OF DASH) BRAKE CONTROL BRAKE PEDAL POSITION SENSOR (TOP OF BRAKE PEDAL ASSEMBLY) BRAKE FLUID LEVEL SWITCH (BOTTOM OF BRAKE FLUID RESERVOIR) BRAKE PEDAL POSITION SENSOR (TOP OF BRAKE PEDAL ASSEMBLY) BRK APPLY SENS SIG BRK APPLY SENS SPLY VOLT BRK PDL TRAVEL SENS 1 HI REF BRK PDL TRAVEL SENS 1 SIG BRK PDL TRAVEL SENS 2 SIG BRN WIRE BRN/WHT WIRE CENTER CONSOLE MULTI-FUNCTION SWITCH COMBINED VEHICLE INERTIAL SENS SPLY VOLT COMPUTER DATA LINES COMPUTER DATA LINES SYSTEM CRUISE/ETS/TCC BRAKE SIG DATA ENGINE CONTROL MODULE (BEHIND LEFT END OF FRONT FASCIA) GRY/BLK WIRE HI SPD GMLAN SERIAL DATA LO REF LO SPD GMLAN SERIAL DATA LOGIC LT BLU WIRE LT BLU/BLK WIRE LT BLU/RED WIRE LT BLU/VIO WIRE LT BLU/YEL WIRE LT GRN WIRE LT GRN/BRN WIRE LT GRN/GRY WIRE MULTI-AXIS ACCELERATION SENSOR (UNDER REAR OF CENTER CONSOLE) PARK BRAKE CONTROL SWITCH STEERING ANGLE SENSOR SYSTEM TRACTION CONTROL SWITCH TRACTION CTRL SWITCH SIG UNDERHOOD FUSE BLOCK (LEFT SIDE OF ENGINE COMPT) VIO/BRN WIRE WHT WIRE WHT/LT BLU WIRE YEL WIRE

13 12 26 LOW REF PRESS SENS SIG 5 VOLT REF 31 63 60 26 40 LOW PRESS SENS SIG 5 VOLT REF LOW REF SENS SIG LOW REF 46 30 COOLANT TEMP SENS SIG LOW REF 5 VOLT REF 72 52 9 HTR SOL VALVE CTRL COOLING FAN CTRL SIG COOLING FAN SPD SIG A/C LOW SIDE PRESSURE SENSOR (LEFT SIDE OF ENGINE, ON A/C PRESSURE LINE) A/C REFRIGERANT PRESSURE SENSOR (IN A/C HIGH PRESSURE LINE) ACCESS WAKUP SERIAL DATA 2 ACCESS WAKUP SRL DATA AMBIENT AIR TEMPERATURE SENSOR (BEHIND RIGHT SIDE OF FRONT FASCIA LOWER GRILLE) B+ VOLT BATT + BLK WIRE BLK/BLU WIRE BLK/BRN WIRE BLK/LT BLU WIRE BLK/LT GRN WIRE BLU/GRY WIRE BRN/RED WIRE COMPT BULKHEAD) COMPUTER DATA LINES SYSTEM COOLANT HEATER CONTROL MODULE (CENTER REAR OF ENGINE COMPT BULKHEAD) COOLANT VALVE POS SENS SIG COOLING FAN SPD SIG DATA (+) (1) HI SPD GMLAN ENGINE CONTROL MODULE (BEHIND LEFT END OF FRONT FASCIA) ENGINE COOLANT RADIATOR TEMPERATURE SENSOR (LOWER RIGHT REAR OF RADIATOR) ENGINE COOLANT TEMPERATURE SENSOR (REAR OF CYLINDER HEAD) FUSE FUSE HI SPD GMLAN DATA (-) (1) HI VOLT BATT (+) HYBRID/EV POWERTRAIN CONTROL MODULE 1 HYBRID/EV POWERTRAIN CONTROL MODULE 2 (RIGHT SIDE OF LUGGAGE COMPT) LOGIC LOW REF LOW SPD GMLAN SERIAL DATA LOW SPD SERIAL DATA LT BLU WIRE LT BLU/RED WIRE LT BLU/VIO WIRE LT BLU/WHT WIRE LT GRN WIRE NCA WIRE ORG/ WIRE PASSENGER COMPARTMENT HEATER COOLANT CONTROL VALVE (CENTER OF ENGINE RED/GRY WIRE RED/WHT WIRE RUN/CRANK IGNITION 1 VOLT SENS SIG VIO/BRN WIRE VIO/WHT WIRE WHT WIRE WHT/RED WIRE YEL/BLK WIRE YEL/LT BLU WIRE

18 15 1 43 29 ACC WAKEUP SERIAL DATA 2 22 23 ACC WAKEUP SERIAL DATA SERI DATA COMM ENABLE 24 25 GMLAN SERIAL DATA (+) (1) GMLAN SERIAL DATA (-) (1) A/C COMPRESSOR (LOWER LEFT FRONT OF ENGINE) BLK WIRE BODY CONTROL MODULE (RIGHT SIDE OF DASH) BRN WIRE DATA LINK CONNECTOR (UNDER LEFT SIDE OF DASH) DK BLU/YEL WIRE ELECTRONIC BRAKE CONTROL MODULE (UNDER MASTER BRAKE CYLINDER ASSEMBLY) ENGINE CONTROL MODULE (BEHIND LEFT END OF FRONT FASCIA) GMLAN SERIAL DATA GMLAN SERIAL DATA (-) (1) GMLAN SERIAL DATA (+) (1) HOT AT ALL TIMES LEFT DLC LT INSTRUMENT PANEL FUSE BLOCK INFLATABLE RESTRAINT SENSING, DIAGNOSTIC MODULE (UNDER CENTER CONSOLE) LINEAR INTERCONNECT NETWORK BUS 2 LT BLU WIRE LT BLU/BLK WIRE LT BLU/WHT WIRE LT BLU/YEL WIRE LT GRN WIRE LT GRN/BRN WIRE LT GRN/LT BLU WIRE LT GRN/VIO WIRE LT GRN/YEL WIRE NCA WIRE NETWORK BUS 1 NETWORK BUS 11 NETWORK BUS 2 NETWORK BUS 3 POWER STEERING CONTROL MODULE (PART OF STEERING RACK ASSEMBLY) RED/LT GRN WIRE STEERING WHEEL ANGLE SENSOR (TOP OF STEERING COLUMN) TRANSMISSION SHIFT LEVER POSITION INDICATOR VIO/YEL WIRE WHT WIRE WHT/LT BLU WIRE

ACCESS WAKUP SRL DATA B+ VOLT BLK WIRE BLK/BRN WIRE BREAKOUT) COMPUTER DATA LINES SYSTEM COOL FAN LT FUSE COOL FAN RT FUSE COOLING FAN CTRL SIG COOLING FAN SPD SIG COOLING FAN SPD SIG COOLANT TEMP SENS SIG CTRL SIG ENGINE CONTROL MODULE (BEHIND LEFT END OF FRONT FASCIA) ENGINE COOLANT TEMPERATURE SENSOR (REAR OF CYLINDER HEAD) GRN WIRE HOT AT ALL TIMES HYBRID/EV POWERTRAIN CONTROL MODULE 2 (RIGHT SIDE OF LUGGAGE COMPT) LEFT COOLING FAN MOTOR (BEHIND RADIATOR) LOW REF LOW SPD SERIAL DATA LT BLU WIRE LT BLU/VIO WIRE LT BLU/WHT WIRE LT GRN WIRE RED WIRE RED/LT BLU WIRE RED/WHT WIRE RIGHT COOLING FAN MOTOR (BEHIND RADIATOR) UNDERHOOD FUSE BLOCK (LEFT SIDE OF ENGINE COMPT) WHT WIRE

1 4 GND B+ 25 24 GMLAN SERIAL DATA (+) GMLAN SERIAL DATA (-) 27 64 FUEL LEVEL SENS LOW REF PRIMARY FUEL LVL SENS SIG 29 43 HI SPD GMLAN SERIAL DATA (+) 1 HI SPD GMLAN SERIAL DATA (-) 1 6 1 AJAR SW SIG NETWORK BUS 3 COMPUTER DATA LINES SYSTEM 6 4 AJAR SW SIG COMPUTER DATA LINES SYSTEM NETWORK BUS 3 AMPLIFIER BREAKOUT) BLK WIRE BLK/LT GRN WIRE BODY CONTROL MODULE (RIGHT SIDE OF DASH) BRAKE IND BRN WIRE BRN/WHT WIRE COMPUTER DATA LINES SYSTEM DRIVER DOOR LATCH ASSEMBLY ENGINE CONTROL MODULE (BEHIND LEFT END OF FRONT FASCIA) ENGINE CONTROLS SYSTEM ENGINE OIL PRESSURE SWITCH (LEFT FRONT SIDE OF ENGINE BLOCK) FUEL LEVEL SENSOR FUEL PUMP, LEVEL SENSOR ASSEMBLY (TOP OF FUEL TANK) GROUND DISTRIBUTION SYSTEM GRY WIRE GRY/BLK WIRE GRY/VIO WIRE HI SPD GMLAN SERIAL DATA ILL LOGIC TRANSMISSION SHIFT LEVER POSITION INDICATOR LIFT GATE AJAR SW SIG 1 LOGIC CENTER CONSOLE CUPHOLDER MOTOR LOGIC DRIVER WINDOW MOTOR LOGIC PASSENGER WINDOW MOTOR LT BLU WIRE LT BLU/BLK WIRE LT BLU/VIO WIRE LT GRN/LT BLU WIRE LT GRN/YEL WIRE NETWORK BUS 2 OIL PRESS SW SIG PARK BRAKE CONTROL SWITCH PARKING BRAKE CONTROL MODULE (BEHIND REAR OF LEFT REAR WHEELWELL LINER) PASSENGER DOOR LATCH ASSEMBLY RAP RELAY COIL CTRL REAR COMPARTMENT LID LATCH (BOTTOM CENTER OF LUGGAGE COMPT LID) RED/LT BLU WIRE RELEASE SW PARK BRK SW SIG APPLY SW VOLT SUPPLY VOLTAGE APPLY SW SIG RELEASE SW SIG VIO/GRY WIRE WHT WIRE YEL WIRE YEL/LT BLU WIRE

"CHECK ENGINE" IND CTRL 5 VOLT REF AMPLIFIER BREAKOUT) BLK WIRE BLK/BRN WIRE BLK/LT BLU WIRE BLK/LT GRN WIRE BRN/RED WIRE BRN/WHT WIRE BRN/YEL WIRE COMPUTER DATA LINES SYSTEM ELCM PRESS SENS SIG ENGINE CONTROL MODULE (BEHIND LEFT END OF FRONT FASCIA) ENGINE COOLANT TEMPERATURE SENSOR (REAR OF CYLINDER HEAD) ENGINE OIL IND EVAP CANISTER PUR SOL CTRL FUEL GAUGE IND FUEL TANK PRESS SENS SIG PRIMARY FUEL LVL SENS SIG GRY WIRE GRY/LT BLU WIRE GRY/RED WIRE GRY/WHT WIRE INSTRUMENT CLUSTER LO SPD GMLAN SERIAL DATA LOGIC LOW REF (1) LOW REF 5 VOLT REF LOW REF LOW REF LT BLU WIRE LT BLU/LT GRN WIRE LT BLU/VIO WIRE LT BLU/WHT WIRE LT GRN WIRE LT GRN/ BLK WIRE LT GRN/LT BLU WIRE LT GRN/WHT WIRE MALFUNCTION IND MANFOLD ABSOLT PRESS SENS SIG ENGINE COOLANT TEMP SENS SIG MANIFOLD ABSOLUTE PRESSURE SENSOR (TOP CENTER OF INTAKE MANIFOLD) NCA WIRE PRESS SENS SIG RED/WHT WIRE SECONDARY AIR INJECTION SOLENOID VALVE (TOP REAR OF ENGINE) SENS SPLY VOLT VIO/LT BLU WIRE WHT/BRN WIRE WHT/YEL WIRE YEL/LT BLU WIRE YEL/RED WIRE

"CHECK ENGINE" IND CTRL 5 CM FROM 5 VOLT REF 5-VOLT REF 1 5-VOLT REF 2 A/C PRESS SENS SIG ACC PEDAL POS SIG 1 ACC PEDAL POS SIG 2 AIR PUMP FUSE BATT POSITIVE VOLT BLK WIRE BLK/BRN WIRE BLK/LT BLU WIRE BLK/LT GRN WIRE BLK/VIO WIRE BLK/WHT WIRE BREAKOUT) BRN/RED WIRE BRN/WHT WIRE BRN/YEL WIRE COIL CTRL COMPUTER DATA LINES SYSTEM COOLING FAN SPD SIG COOLING FANS SYSTEM CRUISE/ETC/TCC BRK SIG ECM FUSE ECM FUSE EMIS FUSE ECM/TCM FUSE EMPTY FUSE ENGINE CONTROL MODULE (BEHIND LEFT END OF FRONT FASCIA) ENGINE CONTROLS IGNITION RELAY ENGINE MAIN RLY CTRL GRY/LT BLU WIRE GRY/WHT WIRE HOT AT ALL TIMES HOT W/ IGNITION MAIN RELAY ENERGIZED IGN COIL FUSE INJECTION SOLENOID VALVE BREAKOUT) LINES SYSTEM COMPUTER DATA LOW REF LOW REF (1) LOW REF 2 LT BLU WIRE LT BLU/BLK WIRE LT BLU/BRN WIRE LT BLU/VIO WIRE LT BLU/WHT WIRE LT GRN WIRE LT GRN/GRY WIRE LT GRN/LT BLU WIRE LT GRN/WHT WIRE MAS AIR FLOW SENS SIG MISC RUN/ CRNK/IP FUSE POWER DISTRIBUTION SYSTEM POWER INVERTER MODULE ASSEMBLY COVER CONNECTOR PRIMARY RLY CTRL PUMP CTRL RED/BRN WIRE RED/LT GRN WIRE RED/YEL WIRE RUN/CRANK IGN 1 VOLT SECONDARY AIR INJ SECONDARY AIR INJECTION PUMP RELAY (CALIFORNIA) SECONDARY AIR INJECTION SOLENOID VALVE RELAY (CALIFORNIA) SENS SIG SERIAL DATA (+) (3) SERIAL DATA (-) (1) TEMP SENS SIG TEMP SENS SIG 2 UNDERHOOD FUSE BLOCK VIO/BRN WIRE VIO/GRY WIRE VIO/LT BLU WIRE VIO/WHT WIRE VIO/YEL WIRE WAKEUP SERIAL DATA 2 WHT WIRE WHT/BLK WIRE WHT/LT BLU WIRE WHT/RED WIRE YEL/BLK WIRE YEL/WHT WIRE

5 VOLT REF LOW REF BLK WIRE BLK/BRN WIRE BLK/GRY WIRE BLK/LT GRN WIRE BLK/VIO WIRE BLK/YEL WIRE BRN/LT BLU WIRE BRN/LT GRN WIRE BRN/RED WIRE BRN/VIO WIRE BRN/WHT WIRE BRN/YEL WIRE CAMSHAFT PHASER EXHAUST SOL 1 CAMSHAFT PHASER INTAKE SOL 1 CAMSHAFT POS EXHAUST SENS 1 CAMSHAFT POS INTAKE SENS 1 ENGINE CONTROL MODULE (BEHIND LEFT END OF FRONT FASCIA) ENGINE COOLANT THERMOSTAT HEATER (ON ENGINE COOLANT INTAKE HOUSING) ENGINE OIL PRESSURE SWITCH (LEFT FRONT SIDE OF ENGINE BLOCK) EXHAUST SENS SPLY VOLT 1 GROUND GRY/LT BLU WIRE GRY/WHT WIRE GRY/YEL WIRE IGN CTRL (2) IGN CTRL (4) INTAKE SENS SPLY VOLT 1 KNOCK SENS SIG 1 LOW REF LOW REF (1) LOW REF LOW REF 1 LT BLU WIRE LT BLU/VIO WIRE LT BLU/WHT WIRE LT GRN WIRE LT GRN/LT BLU WIRE LT GRN/YEL WIRE POWERTRAIN MAIN RLY FUSED SPLY 1 LOW REF LOW REF OIL PRESSURE SW SIG THROTTLE BODY (RIGHT FRONT OF ENGINE) THROTTLE POS SENSOR SIG 1 THROTTLE POS SENSOR SIG 2 VIO/BLK WIRE VIO/BRN WIRE VIO/GRY WIRE VIO/LT BLU WIRE WHT/BLK WIRE YEL WIRE YEL/LT BLU WIRE YEL/VIO WIRE YEL/WHT WIRE

AUDIO AMPLIFIER (UNDER LEFT SIDE OF STORAGE COMPT FLOOR PANEL) AUTOMATIC TRANSMISSION ASSEMBLY BATT POS VOLT BLK WIRE BLK/WHT WIRE BLU WIRE BLU/GRY WIRE BRN WIRE BRN/YEL WIRE COMPUTER DATA LINES SYSTEM DK GRN WIRE DRIVE MOTOR 1 DRIVE MOTOR 1 POSITION SENSOR ELECTRIC/AUXILIARY TRANSMISSION FLUID PUMP ELECTRIC/AUXILIARY TRANSMISSION FLUID PUMP CONTROL MODULE ENGINE CONTROL MODULE (BEHIND LEFT END OF FRONT FASCIA) GRN WIRE GRN/BRN WIRE GRY WIRE HYBRID POWERTRAIN CONTROL MODULE 1 IMS MODE SW S SIG LOGIC LT BLU WIRE LT BLU/WHT WIRE LT BLU/YEL WIRE LT GRN WIRE NCA WIRE ORG/ WIRE POWER INVERTER MODULE (ABOVE AUTOMATIC TRANSMISSION) RED WIRE RED/YEL WIRE RUN/CRNK IGN 1 VOLT SENS SENS SIG SERIAL DATA 2 SIG SIG GND TRANSMISSION INTERNAL MODE SWITCH VIO WIRE VIO/BLK WIRE VIO/GRN WIRE WHT WIRE WHT/LT GRN WIRE WHT/YEL WIRE YEL WIRE YEL/BLK WIRE YEL/RED WIRE