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Home >> Saab >> 2005 >> 9-5 Linear, Standard >> Repair and Diagnosis >> Accessories & Equipment >> Gauges & Instrument Panels >> SAAB Information Display (SID) >> Fault Diagnosis, Symptoms >> Horn failure/Steering wheel controls partly inoperative >> Diagnostic help

Diagnostic help

The horn buttons can be read with the diagnostic tool.

The horn outputs can be activated with the diagnostic tool.

The controls (7 (2416 O) or 9 (2512 O, Sentronic) resistors in series) are fed with +5 V from the SID. When a button is pressed, the resistor in question is grounded giving a particular voltage.

NOTE: A button has stuck.
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