Quote:
Originally Posted by Jeb114
The alternator in these cars are controlled by the PCM. It adjusts the voltage output as needed. It is normal for the gauge to read 12v if the system senses it does not need charging at that moment. What you see is normal for the car. it's not the 60's anymore.  The PCM(Power Control Module) controls all the power in the vehicle. |
So when the battery was disconnected at Walmart it read 14 yesterday because the battery was disconnected possible and the car sensed it needs more charging?