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

A5 - Idle Air Control Check



- Attempt to start engine at part throttle.

- Will engine start and run smoothly at part throttle?

YES -- Go to KE2. KE2 - DTC 0505 or Starts Only at Part Throttle

NO -- Go to A6. A6 - Check For VREF at Throttle Position (TP) Sensor