Section 13-04: Charging System Gauge/Warning Indicator
1993 Mustang Workshop Manual
DESCRIPTION AND OPERATION

Charging System Gauge/Warning Indicator

The voltmeter indicates battery voltage when the ignition is in the RUN position (engine OFF). The needle will indicate within the NORMAL band during vehicle operation. Fluctuation at idle is no cause for concern. Voltmeter is not adjustable and should be replaced if inoperative.



A red generator charge indicator is located in the instrument cluster. This indicator glows when there is no generator output.

If the system is working normally, the following conditions will be present:

If the charge indicator does not come on with the ignition switch in the RUN position and the engine not running, check the 'I' circuit (ignition switch to regulator 'I' terminal) for an open circuit or burned out charge indicator. Replace the indicator, if necessary.