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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With Generic Scan Tool

Diagnostic trouble codes diagnosis




After repair procedure
1. Erase the DTCs from ECM memory using the Scan Tool, or by disconnecting the negative battery cable for at least twenty seconds.
2. Locate the OBD-II DLC and connect the Scan Tool.
3. Turn ignition switch ON.
4. Start and warm engine, then run at 2,000 rpm for three minutes.
5. Verify that no DTCs (Diagnostic Trouble Codes) are recorded.
6. If DTCs are recorded, Refer to diagnostic trouble codes.