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Home >> Chevrolet >> 2002 >> Blazer 4D Utility, 4WD, Part Time >> Repair and Diagnosis >> External Pages >> Different car >> Section 1398 (Wiring Systems (Diagnostic Information And Procedures)) >> Diagnostic Information and Procedures >> Testing for Continuity >> With a DMM

With a DMM

WARNING: This page does not describe the selected car, but rather 6 other vehicles, including the 2004 Oldsmobile Bravada, 2004 GMC Envoy XUV, 2004 GMC Envoy XL, 2004 GMC Envoy, and 2004 Chevrolet TrailBlazer. However, it is still accessible from the selected car via links, so may be relevant.
  1. Set the rotary dial of the DMM to the Ω position.
  2. Disconnect the power feed (i.e. fuse, control module) from the suspect circuit.
  3. Disconnect the load.
  4. Press the MIN MAX button on the DMM.
  5. Connect one lead of the DMM to one end of the circuit to be tested.
  6. Connect the other lead of the DMM to the other end of the circuit.
  7. If the DMM displays low or no resistance and a tone is heard, the circuit has good continuity.
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