Chevrolet Cruze I facelift (2012-2015) engine control module (ecm) (1.8l: left side of engine compt) Wiring diagrams

1 3 5 HI SPD GMLAN SERIAL DATA - HI SPD GMLAN SERIAL DATA + 12 V 14 7 TRACTION CTRL SW SIG BRK APPLY SENS SIG BRK APPLY SENS SPLY VOLT 22 38 58 LOW REFERENCE 2501 2500 COMPUTER DATA LINES SYSTEM 29 43 HI SPD GMLAN SERIAL DATA + HI SPD GMLAN SERIAL DATA - ABS IND. ACCELERATION SENSOR BLK WIRE BLK/BRN WIRE BLU WIRE BLU/VIO WIRE BLU/YEL WIRE BODY CONTROL MODULE (UNDER CENTER DASH) BRAKE IND BRAKE PEDAL POSITION SENSOR (TOP OF BRAKE PEDAL ASSEMBLY) BRK APPLY SENS LOW REF BRK APPLY SENS SIG BRK APPLY SENS SPLY VOLT BRK POSITION SENS SIG COMBINED VEH INERTIAL SENS SPLY VOLT COMPUTER DATA LINES SYSTEM COMPUTER DATA LINES SYSTEMS CRUISE/ETC/TCC BRK SIG ENGINE CONTROL MODULE (ECM) (1.8L: LEFT SIDE OF ENGINE COMPT) GRN WIRE GRN/BRN WIRE GRY/RED WIRE HI SPD GMLAN SERIAL DATA HI SPD GMLAN SERIAL DATA + COMBINED VEH INERTIAL SENS SPLY VOLT HI SPD GMLAN SERIAL DATA + HI SPD GMLAN SERIAL DATA - INSTRUMENT CLUSTER LOGIC LOW REFERENCE M/T A/T MULTI-AXIS ACCELERATION SENSOR PARK BRAKE SWITCH PARK BRAKE SWITCH (CENTER CONSOLE, ATTACHED TO PARKING BRAKE) PARK BRK SW SIG SERIAL DATA COMMUNICATION ENABLE STEERING ANGLE SENSOR (BASE OF STEERING COLUMN) TCS OFF IND TCS/ ESC IND TRACTION CONTROL SWITCH TRACTION CTRL SW SIG WHT WIRE WHT/BLU WIRE YEL WIRE

1.4L 1.8L 1.8L 1.4L 46 30 ECT SENS SIG LO REF 5 VOLT REF A/C COMPR CLUTCH RLY COTL A/C COMPRESSOR CLUTCH RELAY A/C EVAPORATOR TEMPERATURE SENSOR A/C REFRIGERANT PRESS SENS SIG LO REF A/C REFRIGERANT PRESSURE SENSOR A/C REFRIGERANT PRESSURE SENSOR (RIGHT RADIATOR SUPPORT) A/C REQUEST IND A/C REQUEST SWITCH A/C VENTILATING REQUEST FAN UP SWITCH SWITCH BLK WIRE BLK/BLU WIRE BLK/BRN WIRE BLK/GRY WIRE BLK/YEL WIRE BLU WIRE BLU/BRN WIRE BRN WIRE BRN/GRN WIRE BRN/RED WIRE BRN/YEL WIRE COMPUTER DATA LINES SYSTEM COOLING FAN HI SPEED RELAY COOLING FAN LO SPEED RELAY COOLING FAN MEDIUM SPEED RELAY COOLING FAN MOTOR COOLING FAN RELAY COOLING FAN SPEED CONTROL RELAY COOLING TEMP SENS 2 SIG COOLING TEMP SENS 2 SIG COOLING TEMP SENS 2 SIG DEFROST DEFROST A/C LOWER LOWER REQUEST AIR OUTLET AIR OUTLET IND SWITCH IND DEFROST IND DEFROST SWITCH DEFROST, LOWER AIR OUTLET IND DEFROST, LOWER AIR OUTLET SWITCH DUCT LEFT LOWER AIR TEMPERATURE SENSOR DUCT LEFT UPPER AIR TEMPERATURE SENSOR ECT SENS SIG ENGINE CONTROL MODULE (ECM) (1.8L: LEFT SIDE OF ENGINE COMPT) ENGINE CONTROLS IGNITION RELAY ENGINE COOLANT TEMPERATURE GAUGE ENGINE COOLANT TEMPERATURE SENSOR 1 ENGINE COOLANT TEMPERATURE SENSOR 1 (REAR OF ENGINE) ENGINE COOLANT TEMPERATURE SENSOR 2 ENGINE COOLANT TEMPERATURE SENSOR 2 (RIGHT SIDE OF RADIATOR) FUSE 42 FUSE 45 FUSE 46 FUSE 62 GRN WIRE GRN/VIO WIRE GRN/YEL WIRE GRY WIRE GRY/GRN WIRE HI SPD COOLING FAN RLY CTRL HI SPD GMLAN SERIAL DATA BUS + HI SPD GMLAN SERIAL DATA BUS- HI SPD GMLAN SERIAL DATA BUS+ HOT AT ALL TIMES HVAC CONTROL SWITCH ASSEMBLY INSTRUMENT CLUSTER LO REF LOGIC LOGIC 26 16 32 SERIAL DATA GND B+ LOW SPD COOLING FAN RLY CTRL LOWER AIR OUTLET IND LOWER AIR OUTLET SWITCH LT GRN WIRE RECIR- CULATION DEFROST DEFROST SWITCH IND SWITCH RECIR- CULATION IND RECIR- CULATION SWITCH RECIR- VENTILATING CULATION FAN DOWN IND SWITCH RED/WHT WIRE RIGHT SIDE OF RADIATOR) SERIAL DATA TEMPERATURE CONTROL SWITCH UNDERHOOD FUSE BLOCK UNDERHOOD FUSE BLOCK (ENGINE COMPT, NEXT TO LEFT STRUT TOWER) UPPER AIR OUTLET IND UPPER AIR OUTLET SWITCH UPPER, LOWER AIR OUTLET IND UPPER, LOWER AIR OUTLET SWITCH UPPER, LOWER LOWER LOWER AIR AIR OUTLET AIR OUTLET OUTLET SWITCH SWITCH IND VENTILATING FAN DOWN SWITCH VENTILATING FAN UP SWITCH WHT WIRE WHT/BLK WIRE WHT/BLU WIRE WHT/GRY WIRE YEL WIRE YEL/BLK WIRE

1.4L 1.4L 1.8L 1.8L 1.8L 1.4L 32 26 16 B+ SERIAL DATA 46 30 ECT SENS SIG LO REF BLK WIRE BLK/BLU WIRE BLK/BRN WIRE BLU WIRE BRN/YEL WIRE COMPUTER DATA LINES SYSTEM COOLING FAN HI SPEED RELAY COOLING FAN LO SPEED RELAY COOLING FAN MEDIUM SPEED RELAY COOLING FAN MOTOR COOLING FAN RELAY COOLING FAN SPEED CONTROL RELAY COOLING TEMP SENS 2 SIG ECT SENS SIG ENGINE CONTROL MODULE (ECM) ENGINE CONTROL MODULE (ECM) (1.8L: LEFT SIDE OF ENGINE COMPT) ENGINE CONTROLS IGNITION RELAY ENGINE COOLANT TEMPERATURE (ECT) SENSOR 1 ENGINE COOLANT TEMPERATURE (ECT) SENSOR 2 ENGINE COOLANT TEMPERATURE (ECT) SENSOR 2 (RIGHT SIDE OF RADIATOR) ENGINE COOLANT TEMPERATURE GAUGE FUSE 21 FUSE 42 FUSE 45 FUSE 46 GRN WIRE GRN/VIO WIRE GRY WIRE HI SPD COOLING FAN RLY CTRL HI SPD GMLAN SERIAL DATA BUS + HOT AT ALL TIMES INSTRUMENT CLUSTER INSTRUMENT PANEL FUSE BLOCK INSTRUMENT PANEL FUSE BLOCK (BEHIND LEFT END OF DASH) LO REF LOGIC LOW SPD COOLING FAN RLY CTRL LT GRN WIRE RED/WHT WIRE RIGHT SIDE OF RADIATOR) SERIAL DATA UNDERHOOD FUSE BLOCK UNDERHOOD FUSE BLOCK (ENGINE COMPT, NEXT TO LEFT STRUT TOWER) WHT WIRE WHT/BLK WIRE WHT/BLU WIRE YEL WIRE YEL/BLK WIRE

5 VOLT REF 6 SPEED A/T BLK WIRE BLK/BRN WIRE BLU WIRE BLU/YEL WIRE BODY CONTROL MODULE (BCM) BODY CONTROL MODULE (BCM) (UNDER CENTER DASH) BRAKE PEDAL POSITION SENSOR BRAKE PEDAL POSITION SENSOR (TOP OF BRAKE PEDAL ASSEMBLY) BRK PDL POS SENS SIG COMPUTER DATA LINES SYSTEM DK BLU WIRE ENGINE CONTROL MODULE (ECM) ENGINE CONTROL MODULE (ECM) (1.8L: LEFT SIDE OF ENGINE COMPT) FUSE 22 FUSE 32 HOT AT ALL TIMES HOT AT ALL TIMES INSTRUMENT PANEL FUSE FUSE BLOCK (BEHIND LEFT END OF DASH) IGN VOLT IGNITION SWITCH INSTRUMENT PANEL FUSE BLOCK KEY CAPTURE SOLENOID ACTUATOR KEY-IN IGNITION SWITCH LOW REF M/T A/T OFF PARK POSITION SWITCH RED/VIO WIRE RUN WIRE SERIAL DATA SPLY VOLT TRANSMISSION SHIFT LEVER UNDERHOOD FUSE BLOCK VIO WIRE VIO/YEL WIRE W/ REMOTE START W/O REMOTE START WHT WIRE WHT/VIO WIRE YEL WIRE

1 2 NETWORK BUS 4 RR DOOR AJAR SW SIG 2 1 LR DOOR AJAR SW SIG NETWORK BUS 4 21 22 NETWORK BUS 4 SERIAL DATA 64 27 FUEL LVL SENS SIG LOW REF BLK WIRE BLK/GRN WIRE BLU/VIO WIRE BODY CONTROL MODULE (UNDER CENTER DASH) BRAKE FLUID LEVEL SWITCH BRAKE FLUID LEVEL SWITCH (MASTER CYLINDER ASSEMBLY) BRK FLUID LVL COMPUTER DATA LINES SYSTEM COMPUTER DATA LINES SYSTEM 5986 333 DRIVER DOOR LATCH DRIVER DOOR LATCH (CENTER REAR OF DRIVER DOOR) DRIVER WINDOW MOTOR (DRIVER'S DOOR) DRIVER WINDOW SWITCH ELECTRONIC BRAKE CONTROL MODULE ELECTRONIC BRAKE CONTROL MODULE (NEAR BRAKE MASTER CYLINDER) ENGINE CONTROL MODULE (ECM) ENGINE CONTROL MODULE (ECM) (1.8L: LEFT SIDE OF ENGINE COMPT) ENGINE CONTROLS SYSTEM ENGINE OIL PRESSURE SWITCH FUEL LVL SENS SIG FUEL PUMP, SENSOR ASSEMBLY FUEL PUMP, SENSOR ASSEMBLY (IN FUEL TANK) GRN WIRE GRN/GRY WIRE GRN/YEL WIRE GRY WIRE LEFT REAR DOOR LATCH LEFT REAR DOOR LATCH (CENTER REAR OF LEFT REAR DOOR) LEFT REAR WINDOW SWITCH LF DOOR AJAR SW SIG LIFT GATE AJAR SW SIG LOW REF LR DOOR AJAR SW SIG NETWORK BUS 3 NETWORK BUS 4 OIL PRESS SW SIG PARK BRAKE SW SIG PARK BRAKE SWITCH PASSENGER DOOR LATCH PASSENGER DOOR LATCH (CENTER REAR OF FRONT PASSENGER'S DOOR) PASSENGER WINDOW SWITCH REAR COMPARTMENT LID LATCH RED/GRY WIRE RF DOOR AJAR SW SIG RIGHT REAR DOOR LATCH RIGHT REAR DOOR LATCH (CENTER REAR OF RIGHT REAR DOOR) RIGHT REAR WINDOW SWITCH RR DOOR AJAR SW SIG SERIAL DATA SERIAL DATA BRK FLUID LVL VIO/GRY WIRE VIO/YEL WIRE W/ EXPRESS UP/DOWN W/O EXPRESS UP/DOWN WHT/BLU WIRE YEL/BLU WIRE

1.4L 1.8L 1.8L 1.4L 12 13 26 43 29 A/C REFRIGERANT PRESS SENS SIG LO REF 5-VOLT REF 46 30 ECT SENS SIG LO REF 5 VOLT REF A/C A/C RECIR- REQUEST REQUEST CULATION SWITCH IND SWITCH A/C COMPR CLUTCH RLY COTL A/C COMPRESSOR CLUTCH RELAY A/C EVAPORATOR TEMPERATURE SENSOR A/C REFRIGERANT PRESS SENS SIG LO REF A/C REFRIGERANT PRESSURE SENSOR A/C REFRIGERANT PRESSURE SENSOR (RIGHT RADIATOR SUPPORT) A/C REQUEST IND A/C REQUEST SWITCH BLK WIRE BLK/BLU WIRE BLK/BRN WIRE BLK/GRY WIRE BLU WIRE BRN/GRN WIRE BRN/RED WIRE BRN/YEL WIRE COMPUTER DATA LINES SYSTEM COOLING FAN HI SPEED RELAY COOLING FAN LO SPEED RELAY COOLING FAN MEDIUM SPEED RELAY COOLING FAN MOTOR COOLING FAN RELAY COOLING FAN SPEED CONTROL RELAY COOLING TEMP SENS 2 SIG COOLING TEMP SENS 2 SIG COOLING TEMP SENS 2 SIG DEFROST DEFROST LOWER LOWER AIR OUTLET AIR OUTLET SWITCH IND DEFROST IND DEFROST SWITCH DEFROST, LOWER AIR OUTLET IND DEFROST, LOWER AIR OUTLET SWITCH DK BLU/BRN WIRE ECT SENS SIG ENGINE CONTROL MODULE (ECM) (1.8L: LEFT SIDE OF ENGINE COMPT) ENGINE CONTROLS IGNITION RELAY ENGINE COOLANT TEMPERATURE (ECT) SENSOR 1 ENGINE COOLANT TEMPERATURE (ECT) SENSOR 1 (REAR OF ENGINE) ENGINE COOLANT TEMPERATURE GAUGE ENGINE COOLANT TEMPERATURE SENSOR 2 ENGINE COOLANT TEMPERATURE SENSOR 2 (RIGHT SIDE OF RADIATOR) FUSE 42 FUSE 45 FUSE 46 FUSE 62 GRN WIRE GRN/VIO WIRE GRY WIRE HI SPD COOLING FAN RLY CTRL HI SPD GMLAN SERIAL DATA BUS- HI SPD GMLAN SERIAL DATA BUS+ HOT AT ALL TIMES HVAC CONTROL SWITCH ASSEMBLY INSTRUMENT CLUSTER LO REF LOGIC LOGIC 26 16 32 SERIAL DATA GND B+ LOW SPD COOLING FAN RLY CTRL LOWER AIR OUTLET IND LOWER AIR OUTLET SWITCH LOWER UPPER AIR AIR OUTLET OUTLET SWITCH IND LT GRN WIRE LT GRN/YEL WIRE RECIR- CULATION DEFROST DEFROST IND IND SWITCH RECIR- CULATION IND RECIR- CULATION SWITCH RED/WHT WIRE RIGHT SIDE OF RADIATOR) SERIAL DATA TEMPERATURE CONTROL SWITCH UNDERHOOD FUSE BLOCK UNDERHOOD FUSE BLOCK (ENGINE COMPT, NEXT TO LEFT STRUT TOWER) UPPER AIR OUTLET IND UPPER AIR OUTLET SWITCH UPPER, LOWER AIR OUTLET IND UPPER, LOWER AIR OUTLET SWITCH UPPER, LOWER LOWER AIR AIR OUTLET OUTLET SWITCH IND VENTILATING FAN DOWN SWITCH VENTILATING FAN UP SWITCH VENTILATING VENTILATING FAN DOWN FAN UP SWITCH SWITCH WHT WIRE WHT/BLK WIRE WHT/BLU WIRE WHT/GRY WIRE YEL WIRE YEL/BLK WIRE

275 (OR 1786) 5 VOLT REF AUTOMATIC TRANSMISSION ASSEMBLY CONTROL SOLENOID VALVE ASSEMBLY BLK WIRE BLK/BRN WIRE BLU WIRE BLU/YEL WIRE BODY CONTROL MODULE (BCM) BODY CONTROL MODULE (BCM) (UNDER CENTER DASH) BRAKE PEDAL POSITION SENSOR BRAKE PEDAL POSITION SENSOR (TOP OF BRAKE PEDAL ASSEMBLY) BRK PDL POS SENS SIG COMPUTER DATA LINES SYSTEM DK BLU WIRE ENGINE CONTROL MODULE (ECM) ENGINE CONTROL MODULE (ECM) (1.8L: LEFT SIDE OF ENGINE COMPT) FUSE 32 GRN (OR WHT/GRY) WIRE HOT AT ALL TIMES LOW REF M/T A/T ORG/ WIRE PARK LOCK SLND CTRL PARK/NEUTRAL PARK/NEUTRAL SIG (1) BRK PDL POS SENS SIG RED/VIO WIRE SERIAL DATA SIG (1) SPLY VOLT TRANS- MISSION CONTROL MODULE TRANS- MISSION INTERNAL MODE SWITCH TRANSMISSION MANUAL SHIFT SWITCH TRANSMISSION SHIFT LEVER TRANSMISSION SHIFT LOCK CONTROL SOLENOID ACTUATOR UNDERHOOD FUSE BLOCK VIO WIRE VIO/BLK WIRE WHT WIRE

2500 2500 2501 COMPUTER DATA LINES SYSTEM 275 (OR 1786) 5985 2501 COMPUTER DATA LINES SYSTEM AUTOMATIC TRANSMISSION ASSEMBLY BLK WIRE BLK/BRN WIRE BLU WIRE BLU/YEL WIRE BODY CONTROL MODULE (BCM) (UNDER CENTER DASH) BRAKE APPLY SEN SUPPLY VOLTAGE BRAKE APPLY SENSOR LOW REF BRAKE APPLY SENSOR LOW REF BRAKE APPLY SEN SUPPLY VOLTAGE BRAKE APPLY SENSOR SIG BRAKE PEDAL POSITION SENSOR BRAKE PEDAL POSITION SENSOR (TOP OF BRAKE PEDAL ASSEMBLY) BRAKE POSITION SENSOR SIG COMPUTER DATA LINES SYSTEM CONTROL SOLENOID VALVE ASSEMBLY CRUISE/ETC/TCC BRAKE SIGNAL DRIVER INFORMATION CENTER DISPLAY ENGINE CONTROL MODULE (ECM) ENGINE CONTROL MODULE (ECM) (1.8L: LEFT SIDE OF ENGINE COMPT) FUSE 1 FUSE 5 GMLAN GMLAN (+) GMLAN (+) GMLAN (-) GMLAN SERIAL DATA BUS + GMLAN SERIAL DATA BUS+ GMLAN SERIAL DATA BUS- GRN WIRE GRY WIRE HOT AT ALL TIMES HOT W/ IGNITION MAIN RELAY ENERGIZED HOT W/ IGNITION MAIN RELAY ENERGIZED FUSE IGN IGN SERIAL DATA GMLAN(-) IGN VOLT INSTRUMENT CLUSTER ISS ISS LO HIG SIG SIG ISS/OSS CTRL ISS/OSS OSS ISS LO ISS CTRL SIG HIG SIG SENS LOGIC LOGIC GMLAN LOW REF OSS SENS P/N P/N SIG P/N SIGNAL PARK LOCK (SS) SOFT CONTROL PC 1 SOLENOID PC 2 SOLENOID PC 3 SOLENOID PC 4 SOLENOID PC 5 SOLENOID POWER DISTRIBUTION POWER DISTRIBUTION SYSTEM PRESSURE CONTROL SOLENOID VALVE 1 PRESSURE CONTROL SOLENOID VALVE 2 PRESSURE CONTROL SOLENOID VALVE 3 PRESSURE CONTROL SOLENOID VALVE 4 PRESSURE CONTROL SOLENOID VALVE 5 RED WIRE RED/BRN WIRE RED/WHT WIRE SERIAL DATA SHIFT SOLENOID VALVE 1 SIG SS 1 SYSTEM TCC SOLENOID TFP 1 TFP 3 TFP 4 TFP 5 TFT TORQUE CONVERTOR CLUTCH PRESSURE CONTROL SOLENOID VALVE TRANSMISSION CONTROL MODULE (TCM) TRANSMISSION FLUID PRESSURE SWITCH TRANSMISSION FLUID TEMPERATURE (TFT) SENSOR TRANSMISSION INPUT SHAFT SPEED SENSOR (ISS) TRANSMISSION INTERNAL MODE SWITCH (IMS) TRANSMISSION MANUAL SHIFT SWITCH TRANSMISSION OUTPUT SHAFT SPEED SENSOR (OSS) TRANSMISSION SHIFT LEVER TRNS RANGE SIG A TRNS RANGE SIG B TRNS RANGE SIG C TRNS RANGE SIG P TRNS TRNS LOW RANGE RANGE REF SIG P SIG C TRNS TRNS RANGE RANGE SIG A SIG B UNDERHOOD FUSE BLOCK VIO/BLK WIRE VIO/GRY WIRE VIO/YEL WIRE WHT WIRE WHT/BLU WIRE YEL WIRE