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 Learn Procedure

ECM Learning Ability

If the battery cable is disconnected, the ECM learning process resets. A change may be noted in the vehicle's performance. To teach the vehicle, ensure that the engine is at the normal operating temperature, then turn ON the ignition key.

Alternate Idle Learn Procedure

Another method to teach the vehicle to idle is to drive the vehicle at part throttle, with moderate acceleration. You may also operate the vehicle at idle conditions until the normal performance returns.