OBD-II trouble code
P010D: Mass Air Flow Sensor B Circuit High Input
Application matters: P010D concerns the high-input criterion for the manufacturer-designated MAF B input. Use its actual signal definition and diagnostic procedure. High input does not by itself establish high physical airflow or a particular fuel-mixture result.
The MAF B monitor detected a high-input condition. Diagnosis must establish the signal fault and assess any mixture codes independently rather than assuming rich running is inevitable.
Quick facts
- System
- Powertrain
- Category
- Fuel and Air Metering
- Severity
- Medium severity
- Driving guidance
- Depends on symptoms and vehicle guidance
- Repair cost range
- Get a vehicle-specific estimate after diagnosis.
- DIY difficulty
- Shop recommended
A code alone cannot establish whether driving is safe. Stop safely for a red brake or oil-pressure warning, overheating, severe misfire, stalling, or impaired braking or steering, and follow the owner's manual. Restraints faults can reduce crash protection even when the vehicle runs normally.
Browse every code in P0100–P0199, or start from the full code library.
What does P010D mean?
P010D reports high input for mass airflow sensor B. It does not establish a universal high-voltage condition, a specific short to power, or excessive physical airflow. Identify the signal definition for the installed sensor and read the full failure designation before interpreting a scan value or planning an electrical test.
The Ford 2024–2025 summary provides a covered digital MAF B high-input example. That example belongs to its particular monitor and does not supply a general wiring diagnosis for every vehicle. A sensor, supply, connection or controller-input fault must be established by the matched diagnostic checks, rather than ranked from the word high.
Keep fuel-mixture faults in the investigation. P010D alone does not guarantee extra fuel, negative fuel trims or a rich exhaust, and it does not make an independent rich-condition code irrelevant. The technician should determine how the actual controller interprets the input, assess the other faults in the required order and verify which conditions remain after the demonstrated repair.
Possible causes
- A fault in the identified sensor producing the high-input condition
- A wiring or terminal fault established by the vehicle-specific circuit checks
- An abnormal supply or return identified using the actual schematic and specifications
- A controller input problem confirmed after the prescribed diagnosis
Symptoms
- Check-engine warning with P010D stored
- Airflow data outside the applicable input criterion
- Rough running, hesitation, reduced power or stalling
- Mixture or other air-metering codes that need their own assessment
- Apparently normal operation during the inspection
Diagnostic steps
Save the full scan report, code status, and available freeze-frame data before clearing anything. Confirm the reporting module, any failure-type suffix, and the procedure for the exact vehicle. The steps below are an overview; use manufacturer specifications and safety procedures for testing.
- 1.Preserve all codes, their status and event data. Record any rich or lean faults without labelling them automatic consequences of P010D.
- 2.Identify the manufacturer-designated B input and the applicable high-input criterion. Do not treat all signal types as a single high-voltage circuit.
- 3.With the engine stopped and ignition off, inspect safely accessible visible intake and harness conditions. Do not probe or disturb a powered connector to reproduce the fault.
- 4.Have a qualified technician follow the protected circuit procedure to assess the sensor, wiring, supply, return and controller input as directed. The code alone does not establish a short-to-power or ground diagnosis.
- 5.Evaluate companion mixture and running faults in the specified order. Use the vehicle’s actual diagnostic data rather than predicting fuel-trim direction or dismissing a separate mixture problem.
- 6.Repair the demonstrated cause, complete the prescribed confirmation and check for remaining faults. A changed airflow number or a cleared light is not sufficient confirmation.
Repair cost
Get a vehicle-specific estimate after diagnosis.
A trouble code alone does not price the repair. Ask the shop to identify the confirmed fault and itemize diagnosis, parts, labor, programming or calibration, and taxes.
Estimate your repair
Run the numbers for your vehicle
Open the Repair Cost Estimator with mass airflow sensor replacement, if diagnosed preselected. Adjust labor rate and vehicle category to fit your situation.
Related repairs
These links are planning examples; the code does not confirm that any listed part has failed.
DIY vs shop
A qualified shop is recommended because this can involve vehicle-specific fuel-system testing; any high-pressure work also requires the prescribed pressure-release and handling precautions. Ask the technician what testing confirmed the repair.