Engine: Electricity

1. A one by one, physically examine the suspected grounded circuit paths while looking for burned spots
2. B one by one, open the individual branch circuit breakers on the suspected distribution panel until the ground detection lamps no longer indicate a ground
3. C one by one, check circuit resistances with a megohmmeter connected between the suspected grounded line and the distribution panel framework
4. D one by one, check all circuits suspected of grounds for continuity

Tip: press A-D to answer