OBD Guide
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B1B13

Driver Knee Bolster Squib Circuit Shorted Together

B1B13 is an OBD-II diagnostic trouble code meaning: Driver Knee Bolster Squib Circuit Shorted Together. Common causes: wiring harness damage, squib malfunction. Estimated repair cost: $111–333.

Severity
🔴 High
Can you drive?
Do not drive — repair immediately
Approx. repair cost
$111–333 (est.)

Symptoms

  • The passive safety system fault indicator is on
  • Driver's knee airbag does not deploy during testing
  • Possible false alarms of the system

Causes

  • Wiring harness damage
  • Squib malfunction
  • Short circuit in the circuit
  • Problems with the restraint system control unit

How to Fix

  1. Check the integrity of the wiring harness
  2. Check the condition of connectors and contacts
  3. Testing the squib for malfunctions
  4. Check the passive restraint system control unit
  5. Replace damaged components if necessary

Related codes

B1B14B1B15B1B16

FAQ

What does the B1B13 code mean?

B1B13 is an OBD-II diagnostic trouble code that indicates: Driver Knee Bolster Squib Circuit Shorted Together

What causes a B1B13 error code?

The most common causes of B1B13 include: Wiring harness damage; Squib malfunction; Short circuit in the circuit; Problems with the restraint system control unit.

How do I fix a B1B13 diagnostic trouble code?

To fix B1B13: Check the integrity of the wiring harness. Check the condition of connectors and contacts. Testing the squib for malfunctions. For a complete diagnosis, use an OBD-II scanner.

Is it safe to drive with B1B13?

Do not drive — repair immediately

How much does it cost to fix B1B13?

The estimated repair cost for B1B13 is $111–333. Actual cost depends on your vehicle, location, and labor rates.

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See also: Russian version · NationStat