OBD Guide
ENFRDEESPT

B220C

Occupant Restraint Controller Accelerometer 1 Internal

B220C is an OBD-II diagnostic trouble code meaning: Occupant Restraint Controller Accelerometer 1 Internal. Common causes: accelerometer 1 fault, srs controller power supply problems. Estimated repair cost: $167–556.

Severity
🚨 Critical
Can you drive?
Limited driving only, diagnose soon
Approx. repair cost
$167–556 (est.)

Symptoms

  • Airbag light is on
  • SRS does not activate in a collision
  • Error persists after reset

Causes

  • Accelerometer 1 fault
  • SRS controller power supply problems
  • Open or short circuit in the sensor circuit
  • Damage to the SRS controller

How to Fix

  1. Check the power and ground of the SRS controller
  2. Inspect the wiring harness for damage
  3. Check accelerometer resistance
  4. Replace the SRS controller if necessary

Related codes

B220DB220EB220F

FAQ

What does the B220C code mean?

B220C is an OBD-II diagnostic trouble code that indicates: Occupant Restraint Controller Accelerometer 1 Internal

What causes a B220C error code?

The most common causes of B220C include: Accelerometer 1 fault; SRS controller power supply problems; Open or short circuit in the sensor circuit; Damage to the SRS controller.

How do I fix a B220C diagnostic trouble code?

To fix B220C: Check the power and ground of the SRS controller. Inspect the wiring harness for damage. Check accelerometer resistance. For a complete diagnosis, use an OBD-II scanner.

Is it safe to drive with B220C?

Limited driving only, diagnose soon

How much does it cost to fix B220C?

The estimated repair cost for B220C is $167–556. Actual cost depends on your vehicle, location, and labor rates.

FRDEESPT

See also: Russian version · NationStat