OBD Guide
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B1BCF

Occupant Restraint Controller Roll Over Sensor

B1BCF is an OBD-II diagnostic trouble code meaning: Occupant Restraint Controller Roll Over Sensor. Common causes: failure sensor malfunction, wiring harness damage. Estimated repair cost: $56–167.

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

Symptoms

  • The SRS light on the dashboard is on
  • The passive safety system may not work in a rollover.
  • The error is stored in the controller memory

Causes

  • Failure sensor malfunction
  • Wiring harness damage
  • Poor contact in connectors
  • Software failure in the SRS controller

How to Fix

  1. Check fault codes in the SRS system
  2. Inspect the rollover sensor and its connections
  3. Check the integrity of the wiring harness
  4. If necessary, replace the sensor or repair the harness
  5. Reset the error and check the system

Related codes

B1BCEB1BD0

FAQ

What does the B1BCF code mean?

B1BCF is an OBD-II diagnostic trouble code that indicates: Occupant Restraint Controller Roll Over Sensor

What causes a B1BCF error code?

The most common causes of B1BCF include: Failure sensor malfunction; Wiring harness damage; Poor contact in connectors; Software failure in the SRS controller.

How do I fix a B1BCF diagnostic trouble code?

To fix B1BCF: Check fault codes in the SRS system. Inspect the rollover sensor and its connections. Check the integrity of the wiring harness. For a complete diagnosis, use an OBD-II scanner.

Is it safe to drive with B1BCF?

Do not drive — repair immediately

How much does it cost to fix B1BCF?

The estimated repair cost for B1BCF is $56–167. Actual cost depends on your vehicle, location, and labor rates.

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See also: Russian version · NationStat