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Home >> Audi >> 2010 >> S4 Automatic DCT >> Repair and Diagnosis >> External Pages >> Different car >> Section 1121 (Exterior Lighting (1 Of 2)) >> Description And Operation >> Exterior Lighting - System Operation and Component Description >> System Operation - Turn Signal and Hazard Lamps >> Network Message Chart

Network Message Chart

WARNING: This page is about a different car, the 2018 Lincoln Navigator. However, it is still accessible from the selected car via links, so may be relevant.

BCM Network Input Messages 

Broadcast Message Originating Module Message Purpose
Turn signal switch status SCCM Indicates the turn signal stalk position on the LH steering column multifunction switch (left/right lane change or turn signal on or off). The BCM activates the left/right turn signals based on this input.

DDM and PDM Network Input Messages 

Broadcast Message Originating Module Message Purpose
Turn indication request BCM A command to the DDM or PDM to activate/deactivate the exterior mirror turn indicator.
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