Advanced Key(R) - Door Handle Touch Sensor Inoperative
57 Door handle touch sensor (Advanced key) inoperative
57 10 25
2021439/2
June 3, 2010
Supersedes Technical DIAGNOSIS AND REPAIR Group 57 number 09-18 dated September 9, 2009 for reasons listed below.
Affected Vehicles
Condition
^ One door handle touch sensor (Advanced Key) is inoperative.
^ DTC for "Outside Door Handle Touch Sensor - Incorrect Signal" is stored in the access/start authorization control module J518 (address word 05)
for the affected door.
^ In Measured Value Block 43 of the access/start authorization control module J518 (address word 05), the second bit from the right (Hall sensor)
of the affected door handle is always 1.
Technical Background
The magnet is missing from under the door handle cap.
Production Solution
Audi A4 Quattro Sedan (8K2) L4-2.0L Turbo (CAEB) Page 582
Not applicable.
Service
Audi A4 Quattro Sedan (8K2) L4-2.0L Turbo (CAEB) Page 583
Pull the affected door handle open and check to see if the magnet is installed (Figures 2-4).
If the magnet is missing, install the magnet.
Audi A4 Quattro Sedan (8K2) L4-2.0L Turbo (CAEB) Page 584
Warranty
Required Parts and Tools
Additional Information
All parts and service references provided in this TSB are subject to change and/or removal. Always check with your Parts Department and service
manuals for the latest information.
