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: Description and Operation

PURPOSE
Controls operation of the automatic transmission.

OPERATION
This system utilizes a microcomputer for accurate control of vehicle speed, engine brake operation, lock-up operation, gear shift timing and other functions. It corresponds to the throttle opening, actual vehicle speed, engine rpm and range position signal. Further, this system adopts an electronically controlled full-time all wheel drive (AWD) system.