Engine-Codes - Generic - P00BC

P00BC Code - Mass Airflow 'A' Circuit Range/Performance Air Flow Too Low

- Code Popularity: 15,730 Views
- Repair Importance Level: 3/3
- Repair Difficulty Level: 3/3
Table of contents
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What are the Possible Causes of the DTC P00BC?

NOTE: The causes shown may not be a complete list of all potential problems, and it is possible that there may be other causes.
  • Faulty Mass Airflow (MAF) 'A' Sensor
  • Mass Airflow 'A' Sensor harness is open or shorted
  • Mass Airflow 'A' Sensor circuit poor electrical connection
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How to Fix the DTC P00BC?

Check the 'Possible Causes' listed above. Visually inspect the related wiring harness and connectors. Check for damaged components and look for broken, bent, pushed out, or corroded connector pins.

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What is the Cost to Diagnose the Code?

Labor: 1.0

The cost to diagnose the P00BC code is 1.0 hour of labor. The diagnosis time and labor rates at auto repair shops vary depending on the location, make and model of the vehicle, and even the engine type. Most auto repair shops charge between $75 and $150 per hour.

What are Code Possible Symptoms?

  • Engine Light ON (or Service Engine Soon Warning Light)

What Does the P00BC Code Mean?

The Mass Airflow (MAF) Sensor uses a hot wire sensing element to measure the amount of air entering the engine. The air passing over the hot wire causes it to cool. This hot wire is maintained at 200°C (392°F) above the ambient temperature as measured by a constant cold wire. The current required to maintain the temperature of the hot wire is proportional to the mass airflow. The MAF Sensor then outputs a signal to the Powertrain Control Module (PCM) proportional to the intake air mass. The PCM calculates the required fuel injector pulse width in order to provide the desired air to fuel ratio. The MAF sensor is located near the air cleaner assembly. Most MAF sensors have an integrated Intake Air Temperature (IAT) sensor. This Diagnostic Trouble Code (DTC) will be set when the Mass Airflow 'B' Sensor (MAF21) value is within the expected range for the current operating conditions, and the Mass Airflow 'A' Sensor (MAF11) value is less than the MAF21 value.
P00BC Code - Mass Airflow 'A' Circuit Range/Performance Air Flow Too Low

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Code P00BC Information for Specific Makes

  • P00BC BMW Mass or Volume Air Flow 'A' Circuit Range/Performance - Air Flow Too Low
  • P00BC Ford Mass Airflow 'A' Circuit Range/Performance Air Flow Too Low  📷
  • P00BC Lincoln Mass Airflow 'A' Circuit Range/Performance Air Flow Too Low  📷
  • P00BC Mercury Mass Airflow 'A' Circuit Range/Performance Air Flow Too Low  📷

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