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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Manual Transmission

Operation
The ON (P or N) or OFF (except N and P) signal of the [1][2]park/neutral position switch is input to ECM. According to the signal, ECM judges whether the transmission is in neutral or in the drive range, drives the ISC motor system and controls the idle revolution speed.