OBD Guide
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B1B05

Driver Airbag Squib 2 Circuit High

B1B05 is an OBD-II diagnostic trouble code meaning: Driver Airbag Squib 2 Circuit High. Common causes: broken wires in the srs system harness, oxidation or damage to contacts in connectors. 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
  • SRS may be disabled
  • In some cases, false positives are possible

Causes

  • Broken wires in the SRS system harness
  • Oxidation or damage to contacts in connectors
  • Airbag squib malfunction
  • Problems with the SRS control unit

How to Fix

  1. Diagnose the SRS system using a scanner
  2. Check the integrity of the wiring harness and contacts
  3. Check squib resistance
  4. If necessary, replace the squib or wiring harness.
  5. Reset the error and check the system operation

Related codes

B1B04B1B06B1B07

FAQ

What does the B1B05 code mean?

B1B05 is an OBD-II diagnostic trouble code that indicates: Driver Airbag Squib 2 Circuit High

What causes a B1B05 error code?

The most common causes of B1B05 include: Broken wires in the SRS system harness; Oxidation or damage to contacts in connectors; Airbag squib malfunction; Problems with the SRS control unit.

How do I fix a B1B05 diagnostic trouble code?

To fix B1B05: Diagnose the SRS system using a scanner. Check the integrity of the wiring harness and contacts. Check squib resistance. For a complete diagnosis, use an OBD-II scanner.

Is it safe to drive with B1B05?

Do not drive — repair immediately

How much does it cost to fix B1B05?

The estimated repair cost for B1B05 is $56–167. Actual cost depends on your vehicle, location, and labor rates.

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See also: Russian version · NationStat