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International Automotive Technicians Network
Re: ignition cuts off during pcm programming
Posted to Technical Discussion Forum on 1/1/2021 2 Replies

This could be as simple as an ecu is monitoring pin(s) of the dlc, and the ecu sees what it thinks is a undesired battery draw KOEO. So, this ecu cuts IG power to prevent battery discharge. Once the scan tool is removed, the ecu no longer sees the undesired ba... Login to read more.

2 Replies Received (View Replies)