A5 Cabriolet L4-2.0L Turbo (CAEB) (2010)
Power Distribution Module: Customer Interest
Lighting - Trunk Light Inoperative
96 Trunk light inoperative
57 10 10
2021341/3
February 11, 2010.
Supersedes Technical Service Bulletin Group 57 number 09-23 dated October 28, 2009 for reasons listed below.
Affected Vehicles
Condition
^ The trunk light is inoperative when opening the trunk.
^ Vehicles with LED taillights (PR number 8SL) are affected.
^ The cut-off stages of the Battery Data Manager (address word 19) are not active.
^ The convenience system control module (address word 46) is not in Production Mode [indicated by DTC 3160 (production mode active)].
^ The light cannot be turned on using the Output Diagnostic Test Mode (DTM).
^ The condition is static and is not changed by closing and reopening the trunk.
Technical Background
Fault in the convenience system control module (J393) software.
Production Solution
Improved Convenience system control module (J393) software.
Service
SVM Update Instructions
1. Follow all instructions in the attached TSB 2011732 00 Software Version Management (SVM), operating instructions.