OBD Guide

B0050

Driver Seat Belt Sensor

B0050 is an OBD-II diagnostic trouble code meaning: Driver Seat Belt Sensor. Common causes: open or short circuit in the wiring harness of the ctions sensor, seat belt sensor malfunction. Estimated repair cost: $22–89.

Severity
⚠️ Medium
Can you drive?
Limited driving only, diagnose soon
Approx. repair cost
$22–89 (est.)

Symptoms

  • Continuous seat belt indicator light
  • No seat belt signal on the dashboard
  • Incorrect operation of airbags (in rare cases)

Causes

  • Open or short circuit in the wiring harness of the Ctions sensor
  • Seat belt sensor malfunction
  • Problems with the SRS module
  • Corrosion of contacts or connectors

How to Fix

  1. Check the condition of the sensor wiring harness
  2. Inspect connectors and contacts for corrosion
  3. Check the SectionConnection resistance of the sensor with a multimeter
  4. If necessary, replace the seat belt sensor
  5. Reset the error with an OBD-II scanner after repair

Related codes

Error B0050 by Vehicle Brand

FAQ

What does the B0050 code mean?

B0050 is an OBD-II diagnostic trouble code that indicates: Driver Seat Belt Sensor

What causes a B0050 error code?

The most common causes of B0050 include: Open or short circuit in the wiring harness of the Ctions sensor; Seat belt sensor malfunction; Problems with the SRS module; Corrosion of contacts or connectors.

How do I fix a B0050 diagnostic trouble code?

To fix B0050: Check the condition of the sensor wiring harness. Inspect connectors and contacts for corrosion. Check the SectionConnection resistance of the sensor with a multimeter. For a complete diagnosis, use an OBD-II scanner.

Is it safe to drive with B0050?

Limited driving only, diagnose soon

How much does it cost to fix B0050?

The estimated repair cost for B0050 is $22–89. Actual cost depends on your vehicle, location, and labor rates.

See also: Russian version · NationStat