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Home >> GMC >> 2006 >> Sierra 1500 HD, RWD >> Repair and Diagnosis >> External Pages >> Different car >> Section 1318 (Wiring Systems And Power Management - Service, Troubleshooting & Diagnosis) >> Testing for Short to Ground >> With a Test Lamp

With a Test Lamp

WARNING: This page is about a different car, the 2009 GMC Sierra, 2009 GMC Cab & Chassis Sierra, 2009 Chevrolet Silverado, and 2009 Chevrolet Cab & Chassis Silverado. However, it is still accessible from the selected car via links, so may be relevant.
  1. Remove the power feed (i.e. fuse, control module) from the suspect circuit.
  2. Disconnect the load.
  3. Connect one lead of the test lamp to battery positive voltage.
  4. Connect the other lead of the test lamp to one end of the circuit to be tested.
  5. If the test lamp illuminates, there is a short to ground in the circuit.
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