A4 Quattro Wagon L4-2.0L Turbo (BPG) (2005)
^ Remove ignition key from ignition lock.
^ Press lock or unlock button on remote transmitter. Remote transmitter is now synchronized.
^ Check remote transmitter function by pressing lock or unlock button.
Diagnosis
^ Verify customer concern. Does remote transmitter function properly?
^ Connect VAS 5051/5052 Diagnostic tool.
^ Switch ignition on.
^ From Start-up screen, select Vehicle Self-Diagnosis >> 46-Convenience system central module >> 004 - DTC memory content.
If DTC(s) 09955, 09956, 09957 and/or 09958 are present, one or more remote transmitter(s) may have lost synchronization.
^ Record DTC(s) and continue with diagnosis.
^ Return to Select function screen.
^ Select function 011 - Measured values >> Display group 7 >> Input Q to confirm.
^ Press all remote transmitter buttons while watching fields 1 and 2. Refer to table for diagnostic guidelines.