2F99 - P0071

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



none









2F99



2F99 - P0071







Information saved in



DME









Fault code



2F99 - P0071









Fault text



Ambient temperature sensor, plausibility









Fault description



Ambient Air Temperature Sensor Range/Performance









Condition for fault identification



Test condition:





PLAUS





Terminal condition: no invariable debounce time, constant sensor data reading during engine warm-up produces entry Voltage condition:





Terminal 15 ON









Condition for fault memory entry



Plausibility monitoring of ambient temperature sensor with end of start phase recognized









Action in service



Constant, invariable sensor signal: Sticking sensor, sensor manipulation









Fault effect and breakdown warning







Driver information



Warning light:





Visual inspection of sensor



Electrical check on sensor wire and power supply wire



Check sensor data response to motion

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