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