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: Testing and Inspection

The Electronically Controlled-Automatic Transmission System (EC-AT) does not use a separate transaxle control module, the system controls are integrated within the Powertrain Control Module (PCM).


To perform transmission control related input/output tests, refer to: Powertrain Control Module/ Testing and Inspection.