OBD Guide
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B1BB5

Passenger Air Bag Disable Switch Circuit Open

B1BB5 is an OBD-II diagnostic trouble code meaning: Passenger Air Bag Disable Switch Circuit Open. Common causes: break in the wiring harness, airbag switch malfunction. Estimated repair cost: $56–167.

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

Symptoms

  • Restraint system malfunction indicator on the dashboard
  • Disabling the front passenger airbag
  • Possible problems with related systems (belt tensioners, etc.)

Causes

  • Break in the wiring harness
  • Airbag switch malfunction
  • Oxidation of contacts
  • Problems with the airbag control unit

How to Fix

  1. Checking the integrity of the wiring harness
  2. Airbag switch testing
  3. Cleaning contacts
  4. Replacing faulty components

FAQ

What does the B1BB5 code mean?

B1BB5 is an OBD-II diagnostic trouble code that indicates: Passenger Air Bag Disable Switch Circuit Open

What causes a B1BB5 error code?

The most common causes of B1BB5 include: Break in the wiring harness; Airbag switch malfunction; Oxidation of contacts; Problems with the airbag control unit.

How do I fix a B1BB5 diagnostic trouble code?

To fix B1BB5: Checking the integrity of the wiring harness. Airbag switch testing. Cleaning contacts. For a complete diagnosis, use an OBD-II scanner.

Is it safe to drive with B1BB5?

Do not drive — repair immediately

How much does it cost to fix B1BB5?

The estimated repair cost for B1BB5 is $56–167. Actual cost depends on your vehicle, location, and labor rates.

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See also: Russian version · NationStat