OBD Guide

B0057

Third Row Center Seat Belt Sensor

B0057 is an OBD-II diagnostic trouble code meaning: Third Row Center Seat Belt Sensor. Common causes: open or short circuit in wiring harness, oxidation of sensor contacts. Estimated repair cost: $56–167.

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

Symptoms

  • Airbag light is on
  • The security system may not work in an accident.
  • The error is stored in the ECU memory

Causes

  • Open or short circuit in wiring harness
  • Oxidation of sensor contacts
  • Malfunction of the seat belt sensor itself
  • Problems with the airbag control unit

How to Fix

  1. Conduct diagnostics of the passive safety system
  2. Check the integrity of the wiring harness and contacts
  3. Test the seat belt sensor
  4. Replace the faulty sensor if necessary
  5. Reset the error and check the system

Related codes

Error B0057 by Vehicle Brand

FAQ

What does the B0057 code mean?

B0057 is an OBD-II diagnostic trouble code that indicates: Third Row Center Seat Belt Sensor

What causes a B0057 error code?

The most common causes of B0057 include: Open or short circuit in wiring harness; Oxidation of sensor contacts; Malfunction of the seat belt sensor itself; Problems with the airbag control unit.

How do I fix a B0057 diagnostic trouble code?

To fix B0057: Conduct diagnostics of the passive safety system. Check the integrity of the wiring harness and contacts. Test the seat belt sensor. For a complete diagnosis, use an OBD-II scanner.

Is it safe to drive with B0057?

Do not drive — repair immediately

How much does it cost to fix B0057?

The estimated repair cost for B0057 is $56–167. Actual cost depends on your vehicle, location, and labor rates.

See also: Russian version · NationStat