OBD Guide
ENFRDEESPT

B1408

Passenger Side Curtain Deployment Control 1 Circuit

B1408 is an OBD-II diagnostic trouble code meaning: Passenger Side Curtain Deployment Control 1 Circuit. Common causes: open or short circuit in wiring harness, side curtain air 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 may not work in an accident.
  • Error B1408 is stored in the control unit memory

Causes

  • Open or short circuit in wiring harness
  • Side curtain air squib malfunction
  • Problems with the airbag control unit
  • Corrosion or poor contact in connectors

How to Fix

  1. Check wiring harness for open or short circuit
  2. Check the resistance of the side curtain airbag squib
  3. Inspect connectors for corrosion or damage
  4. Check airbag control unit
  5. Replace faulty components and clear error

Related codes

B1409B1410B1407

FAQ

What does the B1408 code mean?

B1408 is an OBD-II diagnostic trouble code that indicates: Passenger Side Curtain Deployment Control 1 Circuit

What causes a B1408 error code?

The most common causes of B1408 include: Open or short circuit in wiring harness; Side curtain air squib malfunction; Problems with the airbag control unit; Corrosion or poor contact in connectors.

How do I fix a B1408 diagnostic trouble code?

To fix B1408: Check wiring harness for open or short circuit. Check the resistance of the side curtain airbag squib. Inspect connectors for corrosion or damage. For a complete diagnosis, use an OBD-II scanner.

Is it safe to drive with B1408?

Do not drive — repair immediately

How much does it cost to fix B1408?

The estimated repair cost for B1408 is $56–167. Actual cost depends on your vehicle, location, and labor rates.

FRDEESPT

See also: Russian version · NationStat