Mass or Volume Air Flow Sensor B Circuit Low

Where it lives

For P010C, the circuit described runs through the sensor. The description of P010C reports a fault at the sensor.

Check these first

• A short to ground on the sensor B signal wire
• A failed mass air flow sensor B
• A wiring fault on the sensor B circuit
• A corroded sensor B connector
• A faulty ECM input for sensor B

What to do next

1. Inspect the sensor B connector and wiring
2. Test the signal wire for a short to ground
3. Clean mass air flow sensor B
4. Replace mass air flow sensor B if the signal stays low
5. Verify the ECM if the reading does not change
6. Clear the code and retest

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