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Home >> Audi >> 2016 >> S5 Prestige, 2D Convertible >> Repair and Diagnosis >> External Pages >> Different car >> Section 1096 (Information Center - Instrumentation, Message Center And Warning Chimes (2 Of 2)) >> Diagnosis And Testing >> Instrumentation, Message Center and Warning Chimes - Vehicles With: Head Up Display (HUD) >> Pinpoint Tests >> Pinpoint Test A : The HUD (Head Up Display) Is Inoperative >> Notes

Pinpoint Test A : The HUD (Head Up Display) Is Inoperative: Notes

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.

Normal Operation and Fault Conditions 

See HUD Module component description. Refer to: Head Up Display (HUD) - System Operation and Component Description .

The HUD receives a hot at all times voltage from the BCM. The HUD receives the ignition status message for the RUN/START or ACC input from the BCM through the GWM over the HS-CAN3.

Possible Sources 

Visual Inspection and Diagnostic Pre-checks 

Verify the BCM fuse 9 (10A) is OK.

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