How to fix code p305f for 2015 Chevy Malibu

Question

I have a 2015 malibu eco got both battery check and were told both where good. Check all grounds they all are tight. I put an aftermarket subwoofer and amplifier in and about a month later I got this code any ideas to fix this code?

Answer 1

Hi there,

This code indicates an issue with the battery. Here is some info for you.

P305F CHEVROLET - Dual Battery Control Module Performance

Read more: https://www.autocodes.com/p305f_chevrolet.html