S4 V8-4.2L (BHF) (2004)
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Ambient Light Sensor: Customer Interest
Lighting - Light Sensor Warning ON/DTC P2104/29 - G399
68 08 08
2010214/6
November 5, 2008. Supersedes Technical Service Bulletin Group 94 number 05-06 dated November 16, 2006 for reasons listed below.
Vehicle Information
68 Light Sensor Warning Light ON Intermittently
Condition
94-05-06, November 16, 2005
Supersedes 94-05-01, January 27, 2005
Light Sensor Warning Light ON Intermittently
Customer concern about automatic headlight instrument cluster warning light illuminating for 1 second accompanied with a short beep.
Condition only occurs when headlight switch is in AUTO position.
DTC "P2104/29 - G399 short to ground sporadic" is usually stored in vehicle electrical system control module -J519-.
Tip:
Above DTC may be erased if fault does not occur again within 40 driving cycles.
Models Affected:
Model
Up to VIN:
A4/S4
8E_5A085293
Cabriolet
8H_5K010562
S4 Cabriolet
8H_5K901404
This Bulletin applies ONLY to the above vehicles equipped with automatic headlights. These vehicles will be equipped with rear view mirror Part No:
