2F6C - P0478

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2020 BMW 128i Coupe (E82) L6-3.0L (N51) Diagnostic Trouble Codes ( DTC ): Service instruction



none









2F6C - P0478 (DME)



2F6C - P0478







Information saved in



DME









Fault code



2F6C - P0478









Fault text



Exhaust-gas flap, activation









Fault description



Exhaust Pressure Control Valve High









Condition for fault identification



Test condition:





Exhaust valve control-activation monitor Component must be installed





Tester must be used to trigger component for 10 sec. Terminal condition: Terminal 15 ON





Voltage condition:





Voltage in onboard electrical system > 10 V









Condition for fault memory entry



2 sec.









Action in service



1. Check wiring Repair if defective





If wiring is OK proceed





to check component (which and how?)









Fault effect and breakdown warning







Driver information Warning light: No display

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