UncleTone
Member
Yup, and another thread. 2014 5.7L. I seem to be going in circles here. So I had the "alternator not charging problem". Battery light is on first and goes onto battery save mode and then says battery voltage low. I replaced the alternator, nothing, recharged the 3 month old battery, nothing, replaced the PCM, nothing. So I'm back to the drawing board. Battery right now is at 12.6 with the engine off and drops down to 12.3 when the engine is on. No charging nothing. Ive tested the plug going into the alternator and it seems to be fine. Its just not getting the signal to start charging. Ohm reading on all the wires between the battery and alternator all good. TIPM fuses are good and working. TIPM is getting the same reading as the battery. Im wondering if it could be the battery control/temp sensor attached to the negative terminal, but if I jump the plug with a wire nothing happens. Is there anything else I'm missing here?? Im stumped and don't know where to go. Are there any other inline fuses that I'm missing?? I know the voltage regulator is powered in the PCM. Any help here????