OBD Guide
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B1BB3

Passenger Air Bag Disable Switch Circuit Low

B1BB3 is an OBD-II diagnostic trouble code meaning: Passenger Air Bag Disable Switch Circuit Low. Common causes: open or short circuit in wiring harness, airbag deactivation switch malfunction. Estimated repair cost: $56–167.

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

Symptoms

  • SRS light is on
  • Error message on the dashboard
  • Passenger airbag does not deactivate

Causes

  • Open or short circuit in wiring harness
  • Airbag deactivation switch malfunction
  • Damaged contacts or corrosion
  • Problem with 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. Test the airbag deactivation switch
  4. Replace the faulty component (switch, wiring harness or SRS control unit if necessary)

Related codes

B1BB1B1BB2B1BB4

FAQ

What does the B1BB3 code mean?

B1BB3 is an OBD-II diagnostic trouble code that indicates: Passenger Air Bag Disable Switch Circuit Low

What causes a B1BB3 error code?

The most common causes of B1BB3 include: Open or short circuit in wiring harness; Airbag deactivation switch malfunction; Damaged contacts or corrosion; Problem with SRS control unit.

How do I fix a B1BB3 diagnostic trouble code?

To fix B1BB3: Diagnose the SRS system using a scanner. Check the integrity of the wiring harness and contacts. Test the airbag deactivation switch. For a complete diagnosis, use an OBD-II scanner.

Is it safe to drive with B1BB3?

Limited driving only, diagnose soon

How much does it cost to fix B1BB3?

The estimated repair cost for B1BB3 is $56–167. Actual cost depends on your vehicle, location, and labor rates.

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See also: Russian version · NationStat