OBD Guide

B1815

Short In Front Passenger Side Squib 2nd Step Circuit

B1815 is an OBD-II diagnostic trouble code meaning: Short In Front Passenger Side Squib 2nd Step Circuit. Common causes: damage to the srs wiring harness, short circuit in the 2nd stage squib. Estimated repair cost: $56–167.

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

Symptoms

  • SRS/airbag indicator is on
  • The front passenger airbag may not deploy in an accident.
  • Possible errors in other circuits of the SRS system

Causes

  • Damage to the SRS wiring harness
  • Short circuit in the 2nd stage squib
  • SRS control unit malfunction
  • Corrosion or oxidation of contacts
  • Mechanical damage to system components

How to Fix

  1. Diagnose the SRS system using a scanner
  2. Check the integrity of the wiring harness and contacts
  3. Inspect the 2nd stage squib for damage
  4. Replace damaged components if necessary
  5. Clear error codes and check system operation

Related codes

FAQ

What does the B1815 code mean?

B1815 is an OBD-II diagnostic trouble code that indicates: Short In Front Passenger Side Squib 2nd Step Circuit

What causes a B1815 error code?

The most common causes of B1815 include: Damage to the SRS wiring harness; Short circuit in the 2nd stage squib; SRS control unit malfunction; Corrosion or oxidation of contacts.

How do I fix a B1815 diagnostic trouble code?

To fix B1815: Diagnose the SRS system using a scanner. Check the integrity of the wiring harness and contacts. Inspect the 2nd stage squib for damage. For a complete diagnosis, use an OBD-II scanner.

Is it safe to drive with B1815?

Do not drive — repair immediately

How much does it cost to fix B1815?

The estimated repair cost for B1815 is $56–167. Actual cost depends on your vehicle, location, and labor rates.

See also: Russian version · NationStat