Thursday, November 10th, 2022 AT 10:53 AM
Vehicle will sporadically not start with a drained battery, starts right up on a jump box. Check engine light will come on with code p0562. It reads system low voltage and will randomly not shift into 3rd or 4th gear. I never had any other transmission problems, after turning the vehicle off and then back on it will shift for a few minutes then decide not to anymore. Got the battery tested and the alternator and both tested fine. I don't know where else to turn from here. We also replaced the PCM relay, but that didn't help either.