B374A
Air Flow Control Position Feedback Circuit
B374A is an OBD-II diagnostic trouble code meaning: Air Flow Control Position Feedback Circuit. Common causes: open or short circuit in wiring harness, air flow control position sensor malfunction. Estimated repair cost: $56–167.
Symptoms
- Unstable idle
- Reduced engine power
- Increased fuel consumption
- Check Engine Light Illuminates
Causes
- Open or short circuit in wiring harness
- Air flow control position sensor malfunction
- Airflow control solenoid valve problems
- Malfunction of the engine control unit (ECU)
How to Fix
- Check the wiring harness for breaks or damage
- Check Airflow Control Position Sensor
- Check air flow control solenoid valve
- Check the operation of the engine control unit (ECU)
Related codes
Error B374A by Vehicle Brand
FAQ
What does the B374A code mean?
B374A is an OBD-II diagnostic trouble code that indicates: Air Flow Control Position Feedback Circuit
What causes a B374A error code?
The most common causes of B374A include: Open or short circuit in wiring harness; Air flow control position sensor malfunction; Airflow control solenoid valve problems; Malfunction of the engine control unit (ECU).
How do I fix a B374A diagnostic trouble code?
To fix B374A: Check the wiring harness for breaks or damage. Check Airflow Control Position Sensor. Check air flow control solenoid valve. For a complete diagnosis, use an OBD-II scanner.
Is it safe to drive with B374A?
Limited driving only, diagnose soon
How much does it cost to fix B374A?
The estimated repair cost for B374A is $56–167. Actual cost depends on your vehicle, location, and labor rates.
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