Component Testing: Ammeter
- If ammeter fuse is okay, remove ammeter. Connect a 3.4-watt bulb (or 60-ohm resistor) in series with a battery and ammeter.
- If ammeter indicates about 6 amps, it is working correctly. Ammeter is a shunt type that normally passes 1/30th of current being used in vehicle. DO NOT allow more than 1 amp to pass through ammeter.