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Home >> Saab >> 2005 >> 9-5 Linear, Automatic >> Repair and Diagnosis >> Accessories & Equipment >> Gauges & Instrument Panels >> ONSTAR - 9-5 >> Fault diagnosis, symptoms >> OnStar control button unit, one or more buttons are not functioning >> Checking the wiring harness

Checking the wiring harness

Jiggle the wiring harness at several points and in different directions to detect intermittent breaks and short circuits. Check switches, connectors and crimp connections for oxidation, withdrawn pins and pin clamping force.

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