OBD Guide
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B1324

Door Ajar Lamp Circuit Open

B1324 is an OBD-II diagnostic trouble code meaning: Door Ajar Lamp Circuit Open. Common causes: broken wires in the door harness, door switch malfunction. Estimated repair cost: $6–33.

Severity
✅ Low
Can you drive?
Limited driving only, diagnose soon
Approx. repair cost
$6–33 (est.)

Symptoms

  • The door open lamp does not light up when the door is opened
  • False alarm (if connected)
  • Door open message on dashboard when doors are closed

Causes

  • Broken wires in the door harness
  • Door switch malfunction
  • Burnt out lamp
  • Relay or fuse problems
  • Contact corrosion

How to Fix

  1. Check fuse and relay circuit
  2. Inspect the door switch for damage
  3. Test the circuit with a multimeter
  4. Check the lamp and socket
  5. Inspect the wiring harness in the door hinge area

Related codes

B1325B1326B1327

FAQ

What does the B1324 code mean?

B1324 is an OBD-II diagnostic trouble code that indicates: Door Ajar Lamp Circuit Open

What causes a B1324 error code?

The most common causes of B1324 include: Broken wires in the door harness; Door switch malfunction; Burnt out lamp; Relay or fuse problems.

How do I fix a B1324 diagnostic trouble code?

To fix B1324: Check fuse and relay circuit. Inspect the door switch for damage. Test the circuit with a multimeter. For a complete diagnosis, use an OBD-II scanner.

Is it safe to drive with B1324?

Limited driving only, diagnose soon

How much does it cost to fix B1324?

The estimated repair cost for B1324 is $6–33. Actual cost depends on your vehicle, location, and labor rates.

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See also: Russian version · NationStat