Voltmeter Test Procedure
NOTE:
When performing charging system tests with a voltmeter, turn off all lights and electrical components unless otherwise specified. Battery specific gravity must be 1.200 or higher before testing system.
- Connect voltmeter leads to battery and record battery voltage. Connect a tachometer and operate engine at 1500 RPM with no electrical load. The voltmeter reading should increase 1 volt and not exceed 2 volts above first recorded battery voltage. Read voltage when voltmeter stops moving.
- With engine operating, turn on heater blower motor (high speed) and turn headlights on high beam. Increase engine speed to 2000 RPM. Voltmeter should indicate a minimum of 0.5 volt above the first recorded battery voltage. If voltage tests indicate proper voltage readings, the charging system is satisfactory; if not, proceed to TESTS RESULTS .