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Home >> Chevrolet >> 2002 >> Blazer 4D Utility, 4WD, Part Time >> Repair and Diagnosis >> External Pages >> Different car >> Section 1473 (Wiring Systems (General Information)) >> Diagnostic Information and Procedures >> Testing for Short to Ground >> With a DMM

With a DMM

WARNING: This page is about a different car, the 2002 Oldsmobile Bravada, 2002 GMC Envoy XL, 2002 GMC Envoy, and 2002 Chevrolet TrailBlazer. 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. Set the rotary dial of the DMM to the ohm position.
  4. Connect 1 lead of the DMM to 1 end of the circuit to be tested.
  5. Connect the other lead of the DMM to a good ground.
  6. If the DMM does NOT display infinite resistance (OL), there is a short to ground in the circuit.
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