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Home >> Audi >> 2015 >> A4 Prestige >> Repair and Diagnosis >> External Pages >> Different car >> Section 467 (Smart Access System (Keyless Entry) (Diagnostic Codes & Symptom Tests)) >> SMART ACCESS SYSTEM WITH PUSH-BUTTON START (for Entry Function) >> Symptom Tests >> Additional Key cannot be Registered [08/2013 - ] >> Description

Additional Key cannot be Registered [08/2013 - ]: Description

WARNING: This page is about a different car, the 2014 Lexus ES 300h. However, it is still accessible from the selected car via links, so may be relevant.

If additional registration is not possible, a malfunction in the certification ECU (smart key ECU assembly), power switch, electrical key transmitter sub-assembly or steering lock ECU (steering lock actuator assembly) is suspected.

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