OBD Guide
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B1181

Open In Driver Side Air Bag Module Second Stage Squib Circuit

B1181 is an OBD-II diagnostic trouble code meaning: Open In Driver Side Air Bag Module Second Stage Squib Circuit. Common causes: open or short circuit in the second stage wiring harness, faulty squib. Estimated repair cost: $56–167.

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

Symptoms

  • SRS malfunction light is on
  • The airbag may not deploy in an accident.
  • Error B1181 in diagnostic scanner memory

Causes

  • Open or short circuit in the second stage wiring harness
  • Faulty squib
  • Problems with contacts in the steering column mechanism
  • SRS module malfunction

How to Fix

  1. Diagnostics of the wiring harness for damage
  2. Checking the resistance of the second stage squib
  3. Inspection of contacts and connectors in the steering column mechanism
  4. Checking the functionality of the SRS module
  5. Replacing damaged elements and resetting the error

Related codes

B1180B1182B1175

FAQ

What does the B1181 code mean?

B1181 is an OBD-II diagnostic trouble code that indicates: Open In Driver Side Air Bag Module Second Stage Squib Circuit

What causes a B1181 error code?

The most common causes of B1181 include: Open or short circuit in the second stage wiring harness; Faulty squib; Problems with contacts in the steering column mechanism; SRS module malfunction.

How do I fix a B1181 diagnostic trouble code?

To fix B1181: Diagnostics of the wiring harness for damage. Checking the resistance of the second stage squib. Inspection of contacts and connectors in the steering column mechanism. For a complete diagnosis, use an OBD-II scanner.

Is it safe to drive with B1181?

Do not drive — repair immediately

How much does it cost to fix B1181?

The estimated repair cost for B1181 is $56–167. Actual cost depends on your vehicle, location, and labor rates.

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See also: Russian version · NationStat