Operation CHARM: Car repair manuals for everyone.

General Description

Fig.1 Powertrain Control Module (PCM) Location:




Fig.2 Engine Control Module (ECM) Location:




Two different modules are used for powertrain control with the diesel engine. The Powertrain Control Module (PCM) is used primarily for charging system, transmission, A/C compressor clutch operation and speed control functions. The Engine Control Module (ECM) is used to control the fuel and emissions systems. The PCM is located in the right/rear of engine compartment. The ECM is bolted to the left side of the engine cylinder block.