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Testing For Short Circuits To Ground

WARNING: This page is about a different car, the 2002 Saab 9-3. However, it is still accessible from the selected car via links, so may be relevant.
Fig 1: Testing For Short Circuits To Ground - Circuit Diagram
G03529557Courtesy of SAAB-SCANIA OF AMERICA, INC.
Fig 2: Setting Multimeter For Measuring Ohms
G03529558Courtesy of SAAB-SCANIA OF AMERICA, INC.
  1. Make sure the lead being tested is not under tension (e.g. remove the relevant fuse) and that any loads are disconnected.
  2. Set the multimeter for measuring ohms.
  3. Connect one test lead to a good ground and the other to the point to be tested.
  4. Carefully jiggle the wiring harness and make sure the multimeter reading shows infinite resistance (OL) all the time.
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