2F99 - P0071

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

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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