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

(Some people have issue connecting. LEMON is investigating. For now, use Firefox or change your DNS server)

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Park/Neutral (P/N) Switch

Transmission Position Switch:





Purpose:
The PARK/NEUTRAL switch indicates to the computer when the transmission is in PARK, NEUTRAL or DRIVE.

Operation:
This information is used by the computer for Idle Air Control (IAC) operation, EGR operation as well as transmission Torque Converter Clutch (TCC) operation. DO NOT drive the vehicle with the PARK/NEUTRAL switch disconnected, since idle quality may be affected.

Location:
The Park/Neutral switch is located on the base of the shifter in the center console.