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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Automatic Transmission

Description
When the ignition switch is in the ST position, the battery voltage is applied through the ignition switch and transaxle range switch to the engine control module.
If the selector lever is not P or N position, the battery voltage will not reach the engine control module.
Based on this signal, the engine control module determines the automatic transaxle load and drives the idle speed control motor to maintain optimum idle speed.