Testing For Short to Ground With A Test Lamp or Voltmeter

Testing For A Short With Test Lamp Or Voltmeter:

1. Remove the blown fuse and disconnect the load.
2. Connect a test lamp or voltmeter across the fuse terminals (be sure that the fuse is powered).
3. Beginning near the fuse block, wiggle the harness from side to side. Continue this at convenient points (about 6 inches apart) while watching the test lamp or voltmeter.
4. When the test lamp glows, or the voltmeter registers, there is a short to ground in the wiring near that point.