Safety Warning
DIY auto repair can cause serious injury, fire, or vehicle damage. These guides are for informational purposes only. Always follow OEM torque specs, wear PPE, and consult a certified mechanic if you are unsure. You are solely responsible for your safety.
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HOMESERVICE MANUALSSAAB20029-3 SE, 2D CONVERTIBLE, AUTOMATICREPAIR AND DIAGNOSISENGINE PERFORMANCESYSTEMENGINE CONTROLS - SYSTEM/COMPONENT TESTSCHECKING FOR OPEN CIRCUITS/SHORT CIRCUITSMEASURING RESISTANCE TO CHECK FOR OPEN CIRCUITS
2002 Saab 9-3 SE, 2D Convertible, Automatic
Measuring Resistance To Check For Open Circuits
2002 Saab 9-3 SE, 2D Convertible, AutomaticSECTION Measuring Resistance To Check For Open Circuits
- Make sure there is no power being supplied to the component or lead to be checked (e.g. by removing the relevant fuse).
- Set the multimeter to ohm measurement and connect the instrument to each end of the component/lead to be checked.
- Jiggle the relevant wiring harness while observing the ohmmeter. The resistance for a wiring harness should normally be less than 1 ohm. Special values apply to components.
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When to See a Mechanic
Stop DIY work and contact a certified mechanic immediately if any of the following apply:
- • You smell fuel, burning insulation, or see smoke.
- • Brakes feel soft, pull hard to one side, or make grinding noises.
- • The engine overheats, stalls repeatedly, or misfires under load.
- • You are missing required tools, torque specs, or safe lifting equipment.
- • You are not confident in the next step or safety outcome.