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With A Self-Powered Test Lamp or Ohmmeter

Testing For Short With Self Powered-Test Lamp Or Ohmmeter:




1. Remove the blown fuse and disconnect the battery and load.
2. Connect one lead of a self-powered test lamp or ohmmeter to the fuse terminal on the load side.
3. Connect the other lead to a known good ground.
4. Beginning near the fuse block, wiggle the harness from side to side. Continue this at convenient points (about 6 inches apart) while watching the self-powered test lamp or ohmmeter.
5. When the self-powered test lamp glows, or the ohmmeter registers, there is a short to ground in the wiring near that point.
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