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)

Or, hide this message: temporarily or permanently

Idle Up Control Valve: Service and Repair

Reset IAC Valve Position:
1. Depress the accelerator pedal slightly.
2. Start and run the engine for five seconds.
3. Turn the ignition OFF for ten seconds.
4. Restart the engine and check for proper idle operation.