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Re: main 12V battery doesn't charge, no communication with HPCM
Posted to Technical Discussion Forum on 3/13/2025

Here's some vehicle history from CARFAX, I went down the list to where it shows Battery Replaced and Charging System Checked.

It also shows ECM replaced.

It got a pre-delivery inspection in 2020, used car purchase I'll assume.

It doesn't say which batter... Login to read more.