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Home >> Saab >> 2003 >> 9-3 Vector, Standard >> Repair and Diagnosis >> External Pages >> Different car >> Section 44 (Theft Protection) >> Technical Description >> Siren >> General >> Function
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Technical Description: Siren: General: Function

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.

The siren is powered with +30 from fuse 35 (22a) and grounded at grounding point G35. TWICE communicates with the siren via pin 29. TWICE arms/disarms the siren and also controls the sound pattern when the alarm is tripped.

Information from the siren on faults or a low battery is sent to TWICE on the same lead.

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