Operation CHARM: Car repair manuals for everyone.
Manuals through 2025 now available!

Our trusted friends have launched a new website named LEMON, which has newer manuals. It also contains all the CHARM manuals.

LEMON is the spiritual successor to CHARM, I recommend you try it!

Link: lemon-manuals.la or lemon-manuals.org.ua

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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.