Battery Base Voltage Test

NOTE: Prior to running this test, place the headlamps in the ON position for 10-15 seconds to remove any surface charge from the battery. Wait until the voltage stabilizes before carrying out the base voltage test.


1. With the ignition OFF, and no electrical loads switched on, connect the ground (-) lead of the digital multimeter to the battery ground cable clamp.
2. Connect the positive (+) lead of the digital multimeter to the battery to starter relay cable clamp.
3. Read and record the battery voltage shown on the digital multimeter. This is called base voltage and will be used in later tests.