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Home >> GMC >> 2003 >> Safari Van Cargo, AWD >> Repair and Diagnosis >> External Pages >> Different car >> Section 577 (Wiring Systems (General Information)) >> Diagnostic Information and Procedures >> Testing for Short to Ground >> With a Test Lamp

With a Test Lamp

WARNING: This page is about a different car, the 2002 GMC Savana Special, 2002 GMC Savana Camper Special, 2002 GMC Savana, and 2002 Chevrolet Chevy Express. 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 1 lead of the test lamp to battery positive voltage.
  4. Connect the other lead of the test lamp to 1 end of the circuit to be tested.
  5. If the test lamp illuminates, there is a short to ground in the circuit.