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Home >> Audi >> 2018 >> A6 Premium Plus >> Repair and Diagnosis >> External Pages >> Different car >> Section 206 (Immobiliser System (Diagnostic Codes & Symptom Tests)) >> Immobiliser System >> DTC B278A: Short to GND in Immobiliser System Power Source Circuit [08/2013 - ] >> Inspection Procedure

Inspection Procedure

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.
NOTE:
  • When using the Techstream with the vehicle power switch off, connect the Techstream to the vehicle and turn a courtesy light switch on and off at intervals of 1.5 seconds or less until communication between the Techstream and the vehicle begins. Then select the vehicle type under manual mode and enter the following menus: Body Electrical / Smart Access. While using the Techstream, periodically turn a courtesy light switch on and off at intervals of 1.5 seconds or less to maintain communication between the Techstream and the vehicle.
  • Before replacing the certification ECU (smart key ECU assembly), refer to Registration. Refer to REGISTRATION [08/2013 - ] .
  • After repair, confirm that no DTCs are output by performing "DTC Output Confirmation Operation".