OBD Guide

B00B1

Driver Seat Occupant Classification Sensor B

B00B1 is an OBD-II diagnostic trouble code meaning: Driver Seat Occupant Classification Sensor B. Common causes: open or short circuit in the sensor wiring harness, malfunction of the weight classification sensor itself. 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 passive safety system can disable the driver's airbag
  • Error message on the dashboard

Causes

  • Open or short circuit in the sensor wiring harness
  • Malfunction of the weight classification sensor itself
  • Problems with the sensor connector
  • Malfunction of the airbag control unit

How to Fix

  1. Check the sensor wiring harness for damage.
  2. Check sensor connectors for oxidation and corrosion
  3. Check the sensor resistance (compare with reference values)
  4. If necessary, replace the weight classification sensor
  5. Reset the error and check the system operation

Related codes

Error B00B1 by Vehicle Brand

FAQ

What does the B00B1 code mean?

B00B1 is an OBD-II diagnostic trouble code that indicates: Driver Seat Occupant Classification Sensor B

What causes a B00B1 error code?

The most common causes of B00B1 include: Open or short circuit in the sensor wiring harness; Malfunction of the weight classification sensor itself; Problems with the sensor connector; Malfunction of the airbag control unit.

How do I fix a B00B1 diagnostic trouble code?

To fix B00B1: Check the sensor wiring harness for damage.. Check sensor connectors for oxidation and corrosion. Check the sensor resistance (compare with reference values). For a complete diagnosis, use an OBD-II scanner.

Is it safe to drive with B00B1?

Do not drive — repair immediately

How much does it cost to fix B00B1?

The estimated repair cost for B00B1 is $56–167. Actual cost depends on your vehicle, location, and labor rates.

See also: Russian version · NationStat