Engine Control Module: Locations

Front of Vehicle/Engine Compartment Component Views

Left Rear of the Engine Compartment Components




1 - Windshield Wiper Motor
2 - Power Brake Booster (JL4)
3 - Windshield Washer Solvent Heater (XA7)
4 - Fuse Block - Underhood
5 - Engine Control Module (ECM)
6 - Transmission Control Module (TCM) (M30/M70/MW7)
7 - Brake Booster Vacuum Sensor (JL4)/Brake Master Cylinder Pressure Sensor (JL1)
8 - Brake Fluid Level Switch

Rear of the Engine Compartment Components (4.3L)




1 - Battery Current Sensor
2 - Mega Fuse
3 - A/C Low Pressure Switch (C67/CJ2)
4 - Fuse Block - Underhood
5 - Engine Control Module (ECM)
6 - A/C Refrigerant Pressure Sensor (C67/CJ2)
7 - Mass Airflow (MAF)/Intake Air Temperature (IAT) Sensor
8 - Battery - Right