Keyless Systems - Advanced Key Functions Inoperative
57 Advanced key functions are inoperative
57 13 83
2021363/5
February 22, 2013
Supersedes Technical DIAGNOSIS AND REPAIR Group 57 number 11-48 dated July 25, 2011 for reasons listed below.
Vehicle Information
Condition
^ Vehicle doors cannot be locked or unlocked using Advanced key.
^ Vehicle cannot be started using the Start-Stop button.
^ In Access/Start Authorization Control Module J518 (address word 05), DTC 03283 (Driver's side Access/Start Authorization Antenna Short
Circuit to Ground), DTC 03284 (Right Access/Start Authorization Antenna Short Circuit to Ground) or DTC 00183 (Interior Access/Start
Authorization Antenna 1 -R138-) are stored.
^ Vehicle keys function properly otherwise, operating the door locks via the remote control as well as starting the vehicle using the ignition switch.
Technical Background
Audi A4 Quattro Sedan (8K2) L4-2.0L Turbo (CAEB) Page 724
Not applicable.
Production Solution
Optimized Access/Start Authorization Control Module.
Service
1. Check the vehicle wiring according to the wiring diagram and Guided Fault Finding.
2. If no errors are found with the vehicle wiring, replace Convenience System Control Module J393 (address word 46).
Tip: The Access/Start Authorization Antenna can be ruled out as the cause; this may not be correctly shown in the Guided Fault Finding.
Replacing the antenna does not address the condition.
Warranty
All warranty claims submitted for payment must be in accordance with the Audi Warranty Policies and Procedures Manual. Claims are subject to
review or audit by Audi Warranty.
Additional Information
The following Technical DIAGNOSIS AND REPAIR(s) may be necessary to complete this procedure:
^ TSB 2024111, 57 Replaced Comfort System control unit (BCM2) cannot be coded
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.
