OBD Guide
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B1826

Open in Side Squib Left Circuit

B1826 is an OBD-II diagnostic trouble code meaning: Open in Side Squib Left Circuit. Common causes: broken or damaged wires in the harness, left airbag squib malfunction. Estimated repair cost: $56–167.

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

Symptoms

  • Airbag light is on
  • The passive safety system is not activated during testing
  • Possible errors in other airbag circuits

Causes

  • Broken or damaged wires in the harness
  • Left airbag squib malfunction
  • Problems with the airbag control module
  • Corrosion or poor contact in connectors

How to Fix

  1. Check the integrity of the wiring harness to the left squib
  2. Inspect connectors for corrosion or damage
  3. Check the resistance of the squib (should be within 2-3 Ohms)
  4. If necessary, replace the squib or wiring harness.
  5. Reset the error and check the system

Related codes

B1825B1827B1000

FAQ

What does the B1826 code mean?

B1826 is an OBD-II diagnostic trouble code that indicates: Open in Side Squib Left Circuit

What causes a B1826 error code?

The most common causes of B1826 include: Broken or damaged wires in the harness; Left airbag squib malfunction; Problems with the airbag control module; Corrosion or poor contact in connectors.

How do I fix a B1826 diagnostic trouble code?

To fix B1826: Check the integrity of the wiring harness to the left squib. Inspect connectors for corrosion or damage. Check the resistance of the squib (should be within 2-3 Ohms). For a complete diagnosis, use an OBD-II scanner.

Is it safe to drive with B1826?

Do not drive — repair immediately

How much does it cost to fix B1826?

The estimated repair cost for B1826 is $56–167. Actual cost depends on your vehicle, location, and labor rates.

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See also: Russian version · NationStat