OBD Guide
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B181D

Short to Positive in Passenger Side Airbag Variable Vent Hole Squib Circuit

B181D is an OBD-II diagnostic trouble code meaning: Short to Positive in Passenger Side Airbag Variable Vent Hole Squib Circuit. Common causes: wiring harness damage, airbag squib malfunction. Estimated repair cost: $56–222.

Severity
🚨 Critical
Can you drive?
Do not drive — repair immediately
Approx. repair cost
$56–222 (est.)

Symptoms

  • Airbag light is on
  • Airbag illumination in the diagnostic menu
  • DTC B181D recorded

Causes

  • Wiring harness damage
  • Airbag squib malfunction
  • Contact corrosion
  • Damage to the airbag module
  • SRS control unit malfunction

How to Fix

  1. Diagnose the SRS system using a scanner
  2. Inspect the wiring harness for damage
  3. Check contacts for oxidation
  4. Replace the squib or airbag module if necessary
  5. Clear error memory and check system operation

Related codes

B181EB181FB181C

FAQ

What does the B181D code mean?

B181D is an OBD-II diagnostic trouble code that indicates: Short to Positive in Passenger Side Airbag Variable Vent Hole Squib Circuit

What causes a B181D error code?

The most common causes of B181D include: Wiring harness damage; Airbag squib malfunction; Contact corrosion; Damage to the airbag module.

How do I fix a B181D diagnostic trouble code?

To fix B181D: Diagnose the SRS system using a scanner. Inspect the wiring harness for damage. Check contacts for oxidation. For a complete diagnosis, use an OBD-II scanner.

Is it safe to drive with B181D?

Do not drive — repair immediately

How much does it cost to fix B181D?

The estimated repair cost for B181D is $56–222. Actual cost depends on your vehicle, location, and labor rates.

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See also: Russian version · NationStat