OBD Guide
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B1B09

Passenger Airbag Squib 1 Circuit High

B1B09 is an OBD-II diagnostic trouble code meaning: Passenger Airbag Squib 1 Circuit High. Common causes: broken or damaged wiring harness, poor contact in connectors. Estimated repair cost: $33–167.

Severity
🔴 High
Can you drive?
Do not drive — repair immediately
Approx. repair cost
$33–167 (est.)

Symptoms

  • SRS (airbag) light is on
  • Passenger airbag does not activate when tested
  • Error message in diagnostic scanner

Causes

  • Broken or damaged wiring harness
  • Poor contact in connectors
  • Squib malfunction
  • Short circuit to ground

How to Fix

  1. Carry out a scan of the SRS system to accurately determine the malfunction
  2. Visually inspect the wiring harness and connectors for damage.
  3. Check the resistance of the squib circuit
  4. Replace damaged wires or connectors
  5. If necessary, replace the squib or airbag module
  6. Reset the error and check the system operation

Related codes

B1B08B1B0AB00A0

FAQ

What does the B1B09 code mean?

B1B09 is an OBD-II diagnostic trouble code that indicates: Passenger Airbag Squib 1 Circuit High

What causes a B1B09 error code?

The most common causes of B1B09 include: Broken or damaged wiring harness; Poor contact in connectors; Squib malfunction; Short circuit to ground.

How do I fix a B1B09 diagnostic trouble code?

To fix B1B09: Carry out a scan of the SRS system to accurately determine the malfunction. Visually inspect the wiring harness and connectors for damage.. Check the resistance of the squib circuit. For a complete diagnosis, use an OBD-II scanner.

Is it safe to drive with B1B09?

Do not drive — repair immediately

How much does it cost to fix B1B09?

The estimated repair cost for B1B09 is $33–167. Actual cost depends on your vehicle, location, and labor rates.

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See also: Russian version · NationStat