OBD Guide

B0051

First Row Center Seat Belt Sensor

B0051 is an OBD-II diagnostic trouble code meaning: First Row Center Seat Belt Sensor. Common causes: seat belt sensor malfunction, open or short circuit in the sensor circuit. Estimated repair cost: $56–167.

Severity
⚠️ Medium
Can you drive?
Do not drive — repair immediately
Approx. repair cost
$56–167 (est.)

Symptoms

  • The Security System (SRS) indicator light is on.
  • The SRS system may not operate in the event of an accident.
  • Incorrect operation of the central seat belt

Causes

  • Seat belt sensor malfunction
  • Open or short circuit in the sensor circuit
  • Wiring harness damage
  • Problems with the SRS control module

How to Fix

  1. Check the integrity of the seat belt sensor
  2. Check the sensor circuit for an open or short circuit
  3. Inspect the wiring harness for damage
  4. If necessary, replace the sensor or wiring harness
  5. Reset the error and check the system operation

Related codes

Error B0051 by Vehicle Brand

FAQ

What does the B0051 code mean?

B0051 is an OBD-II diagnostic trouble code that indicates: First Row Center Seat Belt Sensor

What causes a B0051 error code?

The most common causes of B0051 include: Seat belt sensor malfunction; Open or short circuit in the sensor circuit; Wiring harness damage; Problems with the SRS control module.

How do I fix a B0051 diagnostic trouble code?

To fix B0051: Check the integrity of the seat belt sensor. Check the sensor circuit for an open or short circuit. Inspect the wiring harness for damage. For a complete diagnosis, use an OBD-II scanner.

Is it safe to drive with B0051?

Do not drive — repair immediately

How much does it cost to fix B0051?

The estimated repair cost for B0051 is $56–167. Actual cost depends on your vehicle, location, and labor rates.

See also: Russian version · NationStat