9-3 SE Hatchback (9400) L4-2.0L Turbo (B205) HO (2000)
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Jiggle the wiring harness at several points and in different directions to reveal intermittent breaks and short-circuits in the leads.
Observe the multimeter, test lamp or diagnostic instrument during the test.
Checking the Fault Symptoms
Checking The Fault Symptoms
What function is not OK?
See: Horn Failure/Steering Wheel Switch Unit Failure/NO/Horn Switch
See: Horn Failure/Steering Wheel Switch Unit Failure/NO/Radio Control Buttons
Checking Test Value
Checking Test Value
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Contact SID.
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Turn the ignition switch to the ON position.
Test value: Horn Button (SID)