OBD Guide
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B2779

Passenger Side Curtain Air Bag Module Circuit Short To Body Ground

B2779 is an OBD-II diagnostic trouble code meaning: Passenger Side Curtain Air Bag Module Circuit Short To Body Ground. Common causes: wiring harness damage, short circuit to ground. Estimated repair cost: $111–333.

Severity
🔴 High
Can you drive?
Do not drive — repair immediately
Approx. repair cost
$111–333 (est.)

Symptoms

  • Airbag light is on
  • Error message on the dashboard
  • Security system malfunction

Causes

  • Wiring harness damage
  • Short circuit to ground
  • Side airbag module malfunction
  • Problems with contacts or connectors

How to Fix

  1. Check the integrity of the wiring harness
  2. Inspect connectors and contacts for corrosion or damage
  3. Check the airbag module circuit resistance
  4. Replace the airbag module if necessary

Related codes

B2780B2781B2778

FAQ

What does the B2779 code mean?

B2779 is an OBD-II diagnostic trouble code that indicates: Passenger Side Curtain Air Bag Module Circuit Short To Body Ground

What causes a B2779 error code?

The most common causes of B2779 include: Wiring harness damage; Short circuit to ground; Side airbag module malfunction; Problems with contacts or connectors.

How do I fix a B2779 diagnostic trouble code?

To fix B2779: Check the integrity of the wiring harness. Inspect connectors and contacts for corrosion or damage. Check the airbag module circuit resistance. For a complete diagnosis, use an OBD-II scanner.

Is it safe to drive with B2779?

Do not drive — repair immediately

How much does it cost to fix B2779?

The estimated repair cost for B2779 is $111–333. Actual cost depends on your vehicle, location, and labor rates.

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