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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Verifying Vehicle Repair

Verifying Vehicle Repair
Verification of vehicle repair will be more comprehensive for vehicles with OBD-II system diagnostic. Following a repair, the technician should perform the following steps:
- Review and record the Fail Records for the DTC which has been diagnosed.
- Clear DTC(s).
- Operate the vehicle within conditions noted in the Fail Records.
- Monitor the DTC status information for the specific DTC which has been diagnosed until the diagnostic test associated with that DTC runs.

Following these steps is very important in verifying repairs on OBD-II systems. Failure to follow these steps could result in unnecessary repairs.