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International Automotive Technicians Network
Re: GM VTD relearn after pcm replacement
Posted to Technical Discussion Forum on 11/10/2018 1 Reply

10-Minute Immobilizer Relearn

This 10-minute relearn procedure will relearn the prerelease password and the challenge/response data between the theft deterrent module (TDM) and the engine control module (ECM). •Connect a scan tool to the vehicle in the... Login to read more.

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