OBD Guide
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B1998

Passenger Side Side Mount Airbag Circuit Open

B1998 is an OBD-II diagnostic trouble code meaning: Passenger Side Side Mount Airbag Circuit Open. Common causes: broken or damaged wiring harness, corrosion or poor contact in connectors. Estimated repair cost: $111–333.

Severity
🔴 High
Can you drive?
Limited driving only, diagnose soon
Approx. repair cost
$111–333 (est.)

Symptoms

  • The SRS light on the dashboard is on
  • Error message in diagnostic scanner
  • The front passenger airbag may not deploy in an accident.

Causes

  • Broken or damaged wiring harness
  • Corrosion or poor contact in connectors
  • Airbag squib malfunction
  • Airbag damage
  • SRS controller malfunction (rare)

How to Fix

  1. Diagnostics using an OBD-II scanner to confirm the code
  2. Visual inspection of the wiring harness and connectors in the side airbag area
  3. Checking the airbag circuit resistance
  4. Repairing or replacing damaged wires or connectors
  5. Replacing a faulty airbag or squib if necessary
  6. Resetting the error and rechecking the SRS system

Related codes

B1997B1999B1000

FAQ

What does the B1998 code mean?

B1998 is an OBD-II diagnostic trouble code that indicates: Passenger Side Side Mount Airbag Circuit Open

What causes a B1998 error code?

The most common causes of B1998 include: Broken or damaged wiring harness; Corrosion or poor contact in connectors; Airbag squib malfunction; Airbag damage.

How do I fix a B1998 diagnostic trouble code?

To fix B1998: Diagnostics using an OBD-II scanner to confirm the code. Visual inspection of the wiring harness and connectors in the side airbag area. Checking the airbag circuit resistance. For a complete diagnosis, use an OBD-II scanner.

Is it safe to drive with B1998?

Limited driving only, diagnose soon

How much does it cost to fix B1998?

The estimated repair cost for B1998 is $111–333. Actual cost depends on your vehicle, location, and labor rates.

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See also: Russian version · NationStat