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Re: Multiple DTC order of diagnosis
Posted to Technical Theory Forum on 3/19/2017 7 Replies

Matt, I have this saved on a sticky note. It is/was from GM I think;

If the control module stores multiple powertrain DTCs, diagnose the DTCs in the following order:

1. Component level DTCs, such as sensor DTCs, solenoid DTCs, and relay DTCs- Diagnose the ... Login to read more.

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