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Re: 2015 VW alternator charging information
Posted to Technical Theory Forum on 1/18/2021 3 Replies


The ECM sends and receives the LIN signal with the voltage regulator in the generator. If the ECM sends a signal, and does not receive a return message, then it goes to default 14.4 volts.

I use my DSO and check the LIN at the generator (which is so... Login to read more.

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