OBD Guide
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B1B2D

1st Row Passenger Seat Belt Pretensioner Circuit High

B1B2D is an OBD-II diagnostic trouble code meaning: 1st Row Passenger Seat Belt Pretensioner Circuit High. Common causes: broken or damaged wiring harness, contact corrosion. Estimated repair cost: $56–167.

Severity
🔴 High
Can you drive?
Limited driving only, diagnose soon
Approx. repair cost
$56–167 (est.)

Symptoms

  • Airbag light is on
  • Malfunction of the passenger seat belt pretensioner
  • SRS malfunction warning on the dashboard

Causes

  • Broken or damaged wiring harness
  • Contact corrosion
  • Seat belt pretensioner malfunction
  • Problems with the SRS control unit

How to Fix

  1. Check wiring harness for damage
  2. Check contacts for corrosion
  3. Replace seat belt pretensioner if necessary
  4. Check and, if necessary, replace the SRS control unit

Related codes

B1B2CB1B2EB1B2F

FAQ

What does the B1B2D code mean?

B1B2D is an OBD-II diagnostic trouble code that indicates: 1st Row Passenger Seat Belt Pretensioner Circuit High

What causes a B1B2D error code?

The most common causes of B1B2D include: Broken or damaged wiring harness; Contact corrosion; Seat belt pretensioner malfunction; Problems with the SRS control unit.

How do I fix a B1B2D diagnostic trouble code?

To fix B1B2D: Check wiring harness for damage. Check contacts for corrosion. Replace seat belt pretensioner if necessary. For a complete diagnosis, use an OBD-II scanner.

Is it safe to drive with B1B2D?

Limited driving only, diagnose soon

How much does it cost to fix B1B2D?

The estimated repair cost for B1B2D is $56–167. Actual cost depends on your vehicle, location, and labor rates.

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See also: Russian version · NationStat