A8L V8-4.2L (BFM) (2004)
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Steering Mounted Controls Assembly: All Technical Service Bulletins
Electrical - Steering Wheel Controls DTC 0003
91 08 28
2018209/1
July 14, 2008
Vehicle Information
Steering wheel electronics (DTC 0003)
Condition
DTC 0003 (control unit defect) is stored in the steering wheel electronics control unit (Address word 16); however, this DTC does not affect the function
of the vehicle and the customer may not complain about a steering wheel control related issue.
Technical Background
The entry in the steering control unit is incorrect.
Production Solution
Modified control units.
Service
1.
Switch on the ignition (terminal 15 active).
2.
Delete the memory (address 16, steering wheel electronics).
3.
Wait 10 - 15 seconds. (Terminal 15 stays active.)
4.
Read the memory.
^
If the memory is empty, the steering wheel electronics can be left in the vehicle. The DTC was stored in error.
^
If the DTC returns, replace the steering wheel electronics.
Warranty
When procedure applies to vehicles under warranty, use the following:
