OBD Guide
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B1800

Short in Driver Side Squib Circuit

B1800 is an OBD-II diagnostic trouble code meaning: Short in Driver Side Squib Circuit. Common causes: wiring harness damage, 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

  • The airbag light on the dashboard is on
  • SRS can be deactivated
  • In some cases, false positives are possible

Causes

  • Wiring harness damage
  • Airbag squib malfunction
  • Problems with contacts in connectors
  • Short circuit in the SRS control module

How to Fix

  1. Conduct a visual inspection of the wiring harness for damage.
  2. Check the resistance in the squib circuit
  3. Check the contacts in the connectors for oxidation or damage
  4. Replace squib or wiring harness if necessary
  5. Reset the error using an OBD-II scanner and check for reoccurrence

Related codes

B1801B1802B0100

FAQ

What does the B1800 code mean?

B1800 is an OBD-II diagnostic trouble code that indicates: Short in Driver Side Squib Circuit

What causes a B1800 error code?

The most common causes of B1800 include: Wiring harness damage; Airbag squib malfunction; Problems with contacts in connectors; Short circuit in the SRS control module.

How do I fix a B1800 diagnostic trouble code?

To fix B1800: Conduct a visual inspection of the wiring harness for damage.. Check the resistance in the squib circuit. Check the contacts in the connectors for oxidation or damage. For a complete diagnosis, use an OBD-II scanner.

Is it safe to drive with B1800?

Do not drive — repair immediately

How much does it cost to fix B1800?

The estimated repair cost for B1800 is $56–167. Actual cost depends on your vehicle, location, and labor rates.

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See also: Russian version · NationStat