OBD Guide
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B2955

Security Sensor Data Circuit Malfunction

B2955 is an OBD-II diagnostic trouble code meaning: Security Sensor Data Circuit Malfunction. Common causes: open or short circuit in wiring harness, safety sensor malfunction. Estimated repair cost: $56–167.

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

Symptoms

  • Airbag light is on
  • Belt pretensioners do not work
  • Disable some security features

Causes

  • Open or short circuit in wiring harness
  • Safety sensor malfunction
  • Problems with the airbag control unit
  • Corrosion or poor contact in connectors

How to Fix

  1. Check wiring harness for open or short circuit
  2. Check safety sensors for functionality
  3. Inspect connectors and contacts for corrosion
  4. Scan the airbag control module for additional errors
  5. If necessary, replace faulty components

Related codes

B2950B2951B2952

FAQ

What does the B2955 code mean?

B2955 is an OBD-II diagnostic trouble code that indicates: Security Sensor Data Circuit Malfunction

What causes a B2955 error code?

The most common causes of B2955 include: Open or short circuit in wiring harness; Safety sensor malfunction; Problems with the airbag control unit; Corrosion or poor contact in connectors.

How do I fix a B2955 diagnostic trouble code?

To fix B2955: Check wiring harness for open or short circuit. Check safety sensors for functionality. Inspect connectors and contacts for corrosion. For a complete diagnosis, use an OBD-II scanner.

Is it safe to drive with B2955?

Do not drive — repair immediately

How much does it cost to fix B2955?

The estimated repair cost for B2955 is $56–167. Actual cost depends on your vehicle, location, and labor rates.

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See also: Russian version · NationStat