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Home >> Saab >> 2005 >> 9-5 Linear, Automatic >> Repair and Diagnosis (Single Page) >> Accessories & Equipment >> Anti-Theft Systems >> Theft Warning Integrated Central Electronics (Twice) >> Technical Description >> Brief description of TWICE >> Lamp check >> Rear lights

Rear lights

TWICE acts as a filament monitor for the rear lights. On a break in a circuit, SID can read an error message on the bus sent by TWICE. The message activates an information text on the display and an audible warning.

TWICE checks whether voltage is present at the rear light inputs; this information is available on the bus. The information is used by DICE.

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