2010 BMW 128i Convertible (E88) L6-3.0L (N52K) P Code Charts
none
P0071
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
47
Fault effect and breakdown warning
Driver information
Warning light:
1) Visual inspection of sensor
2) Electrical check on sensor wire and power supply wire
2) Check sensor data response to motion
DIAGNOSIS AND REPAIR, MAINTENANCE, PARTS AND LABOR, SHOP OPERATIONS, TECHNICIAN'S REFERENCE, DIAGNOSTIC TROUBLE CODES(dtc), RELAYS AND MODULES, SENSORS AND SWITCHES,ENGINE, COOLING AND EXHAUST, POWERTRAIN MANAGEMENT, TRANSMISSION AND DRIVETRAIN, BRAKES AND TRACTION CONTROL, STARTING AND CHARGING, POWER AND GROUND DISTRIBUTION, STEERING AND SUSPENSION, HEATING AND AIR CONDITIONING, RESTRAINTS AND SAFETY SYSTEMS, ACCESSORIES AND OPTIONAL EQUIPMENT, BODY AND FRAME,CRUSIS CONTROL.