To my understanding, the control module they replaced sits on top of the fuel tank and controls the flow of fuel from the saddle tanks. The drivers module powers the pump on and off. As it was shorting out, it was keeping the fuel pump on, even when the vehicle was off.
I am looking more into...
Well we think we have an answer: fuel pump drivers module. Appears that water had gotten into the pins and corroded the connection, causing it to short out and continually run the fuel pump, drawing enough power throughout the day/night to drain the battery. Our clue was a “hissing” sound in...
I have an 2019 Equinox Premier. After no issues for almost 5 years, I came out of work to a dead battery. Diagnostic run by national auto service chain showed alternator was fine but battery needed replacing. Even after replacing the battery, still waking up in the morning to a dead battery...
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