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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Control Module: Service and Repair

ENGINE CONTROL MODULE (ECM, POWERTRAIN CONTROL MODULE, PCM)

CAUTION: As ECM consists of precision parts, be careful not to expose it to excessive shock.





Removal
1) Disconnect battery negative cable from battery.
2) Disconnect couplers from ECM (PCM).
3) Remove ECM (PCM).

Installation
Reverse removal procedure noting the following.
- Connect couplers to ECM (PCM) securely.