Engine Control Module: Locations

Engine Controls Component Views

Front of Engine (Except L66)




1 - Powertrain Control Module (PCM)
2 - Transmission Control Module (TCM)
3 - Crankshaft Position (CKP) Sensor
4 - Engine Oil Pressure (EOP) Switch
5 - Knock Sensor
6 - Starter
7 - A/C Compressor Clutch
8 - Starter Generator

Left Rear of Engine Compartment (LAT)




1 - C123 Engine Harness to Body Harness
2 - Transmission Control Module (TCM)
3 - Engine Control Module (ECM)
4 - Auxiliary Fuse Block - Underhood
5 - C110 Engine Harness to Forward Lamp Harness
6 - Fuse Block - Underhood
7 - Forward Lamp Harness
8 - C121 Body Harness to Forward Lamp Harness
9 - Body Harness