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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Throttle Full Open Switch: Service and Repair


1. Remove air filter, then disconnect throttle return spring.
2. Disconnect throttle cable and cruise control cable, if equipped.
3. Remove ISA bracket to throttle body attaching screws.
4. Disconnect electrical connectors from WOT switch and ISA motor.
5. Remove bracket, ISA and WOT assembly from throttle body.
6. Remove ISA motor.
7. Remove the two WOT switch to bracket attaching screws, then the switch.
8. Reverse procedure to install.