OBD Guide
ENFRDEESPT

B1933

Air Bag Passenger Circuit Open Fault

B1933 is an OBD-II diagnostic trouble code meaning: Air Bag Passenger Circuit Open Fault. Common causes: broken or damaged airbag wiring harness, 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 SRS light on the dashboard is on
  • The passenger airbag may not deploy in a crash.
  • Possible errors in other passive safety systems

Causes

  • Broken or damaged airbag wiring harness
  • Airbag squib malfunction
  • Oxidation or damage to connectors
  • Problems with the SRS control unit

How to Fix

  1. Diagnose the SRS system using a scanner
  2. Check the integrity of the wiring harness and connectors
  3. Replace damaged circuit components
  4. Reset the error and check the system

Related codes

B1932B1934B1920

FAQ

What does the B1933 code mean?

B1933 is an OBD-II diagnostic trouble code that indicates: Air Bag Passenger Circuit Open Fault

What causes a B1933 error code?

The most common causes of B1933 include: Broken or damaged airbag wiring harness; Airbag squib malfunction; Oxidation or damage to connectors; Problems with the SRS control unit.

How do I fix a B1933 diagnostic trouble code?

To fix B1933: Diagnose the SRS system using a scanner. Check the integrity of the wiring harness and connectors. Replace damaged circuit components. For a complete diagnosis, use an OBD-II scanner.

Is it safe to drive with B1933?

Do not drive — repair immediately

How much does it cost to fix B1933?

The estimated repair cost for B1933 is $56–167. Actual cost depends on your vehicle, location, and labor rates.

FRDEESPT

See also: Russian version · NationStat