Testing For Open Circuits By Measuring Resistance
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.
- Make sure the component or lead to be tested is not under tension (e.g. by removing the relevant fuse).
- Set the multimeter for measuring ohms and connect the ohmmeter to each end of the component/lead to be tested.
- Jiggle the relevant wiring harness while observing the ohmmeter.
Normally, the resistance of a wiring harness is less than 1 ohm. Specified values apply to components.