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Home >> Saturn >> 2009 >> Astra XR, 2D Hatchback, Standard >> Repair and Diagnosis >> Body & Frame >> Body, Cab Control Systems >> Data Communications >> Description and Operation >> Body Control System Description and Operation (Steering Column Control Module) >> SCCM Control Unit >> Turn Signals Function

Turn Signals Function

The SCCM control unit records 4 positions of the turn signal stalk in digital form. The turn signal stalk no longer engages mechanically and instead returns to its initial position, even when the turn signals are switched on. They are switched off either by the steering angle sensor or by moving the stalk in the opposite direction. This information is transmitted by the SCCM control unit via the LS CAN to the REC which then specifies the flash frequency and the duty factor.