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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MIL Remains ON after Engine Starts




MIL Remains ON after Engine Starts

Troubleshooting

1. DTC check

Start engine and recheck DTC of ECM and TCM while engine running.

Is there any DTC(s)?
YES -
Go to troubleshooting for applicable DTC.
NO -
Substitute a known-good combination meter and recheck DTC. Service and Repair
If MIL still remains ON, replace ECM and recheck DTC. Service and Repair