B0052
Passenger Seat Belt Sensor
B0052 is an OBD-II diagnostic trouble code meaning: Passenger Seat Belt Sensor. Common causes: seat belt sensor malfunction, broken or damaged wiring harness. Estimated repair cost: $56–167.
Symptoms
- Airbag light is on
- The security system does not detect whether the passenger is wearing a seat belt.
- Error B0052 is stored in the ECU memory
Causes
- Seat belt sensor malfunction
- Broken or damaged wiring harness
- Contact corrosion
- Software failure in the control unit
How to Fix
- Check the integrity of the wiring harness to the sensor
- Inspect the sensor contacts for corrosion
- Check sensor resistance (compare with nominal value)
- If necessary, replace the seat belt sensor
- Reset the error using an OBD-II scanner
Related codes
Error B0052 by Vehicle Brand
FAQ
What does the B0052 code mean?
B0052 is an OBD-II diagnostic trouble code that indicates: Passenger Seat Belt Sensor
What causes a B0052 error code?
The most common causes of B0052 include: Seat belt sensor malfunction; Broken or damaged wiring harness; Contact corrosion; Software failure in the control unit.
How do I fix a B0052 diagnostic trouble code?
To fix B0052: Check the integrity of the wiring harness to the sensor. Inspect the sensor contacts for corrosion. Check sensor resistance (compare with nominal value). For a complete diagnosis, use an OBD-II scanner.
Is it safe to drive with B0052?
Do not drive — repair immediately
How much does it cost to fix B0052?
The estimated repair cost for B0052 is $56–167. Actual cost depends on your vehicle, location, and labor rates.
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