Cadillac ELR I (2013-2015) coolant heater control module (center rear of engine compt bulkhead) Wiring diagrams

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

COOLANT HEATER CONTROL MODULE (CENTER REAR OF ENGINE COMPT BULKHEAD) DRIVER MIRROR CONTROL MODULE DRIVER SEAT MEMORY CONTROL MODULE (UNDER DRIVER'S SEAT) FRONT, REAR PARKING ASSIST CONTROL MODULE (LEFT REAR OF LUGGAGE COMPT) GMLAN SERIAL DATA (-) 5 GRN/WHT WIRE HVAC CONTROL MODULE INFO DISPLAY MODULE INTERCONNECT INTERFACE CONTROL MODULE BATTERY BREAKOUT) LEFT SIDE OBJECT SENSOR MODULE (BEHIND LEFT END OF REAR FASCIA) LO SPD GMLAN LO SPD GMLAN SERIAL DATA LT BLU/WHT WIRE LT BLU/YEL WIRE LT GRN WIRE LT GRN/WHT WIRE LT GRN/YEL WIRE NCA WIRE NETWORK BUS 8 NETWORK BUS 9 PASSENGER PRESENCE DETECTION MODULE (IN PASSENGER'S SEAT CUSHION) PASSENGER WINDOW SWITCH RIGHT SIDE OBJECT SENSOR MODULE (BEHIND RIGHT END OF REAR FASCIA) SER DATA COMM ENABLE 2 GMLAN SERIAL DATA (+) (5) SERIAL DATA SERIAL DATA LO SPD GMLAN STEERING COLUMN POSITION CONTROL MODULE (LOWER MIDDLE OF STEERING COLUMN) YEL/VIO WIRE