Voltage Signal: Description and Operation

Purpose
Supplies Powertrain Control Module (PCM), with current charging system voltage.

Operation
If the PCM senses low battery voltage:
- PCM increases injector pulse width to compensate for low voltage.
- PCM increases generator field voltage.

If the PCM senses high battery voltage:
- PCM decreases injector pulse width to compensate for high voltage.
- PCM decreases generator field voltage.