OBD Guide

B1C3D

1st Driver Seat Belt Buckle Tensioner Circuit Low

B1C3D is an OBD-II diagnostic trouble code meaning: 1st Driver Seat Belt Buckle Tensioner Circuit Low. Common causes: open or short circuit in wiring harness, pretensioner squib 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
  • The safety system may not work in an accident

Causes

  • Open or short circuit in wiring harness
  • Pretensioner squib malfunction
  • Problems with the airbag control unit

How to Fix

  1. Check wiring harness for damage
  2. Check the resistance of the pretensioner squib
  3. Scan the control unit for other errors
  4. If necessary, replace the squib or wiring harness.

Related codes

FAQ

What does the B1C3D code mean?

B1C3D is an OBD-II diagnostic trouble code that indicates: 1st Driver Seat Belt Buckle Tensioner Circuit Low

What causes a B1C3D error code?

The most common causes of B1C3D include: Open or short circuit in wiring harness; Pretensioner squib malfunction; Problems with the airbag control unit.

How do I fix a B1C3D diagnostic trouble code?

To fix B1C3D: Check wiring harness for damage. Check the resistance of the pretensioner squib. Scan the control unit for other errors. For a complete diagnosis, use an OBD-II scanner.

Is it safe to drive with B1C3D?

Do not drive — repair immediately

How much does it cost to fix B1C3D?

The estimated repair cost for B1C3D is $56–167. Actual cost depends on your vehicle, location, and labor rates.

See also: Russian version · NationStat