OBD Guide
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B1334

Decklid Ajar Rear Door Circuit Short To Ground

B1334 is an OBD-II diagnostic trouble code meaning: Decklid Ajar Rear Door Circuit Short To Ground. Common causes: wiring harness damage, short circuit to ground. Estimated repair cost: $33–167.

Severity
⚠️ Medium
Can you drive?
Limited driving only, diagnose soon
Approx. repair cost
$33–167 (est.)

Symptoms

  • False alarm
  • Incorrect open door indication on the instrument panel
  • Problems with the central locking
  • Error message on display

Causes

  • Wiring harness damage
  • Short circuit to ground
  • Door position sensor malfunction
  • Contact corrosion
  • Body Control Module (BCM) Problems

How to Fix

  1. Visual inspection of the wiring harness in the rear door/trunk lid area
  2. Checking the integrity of wires and contacts
  3. Door position sensor testing
  4. Checking circuit resistance to ground
  5. Replacing damaged components
  6. Resetting the error and checking the system operation

Related codes

B1332B1333B1335

FAQ

What does the B1334 code mean?

B1334 is an OBD-II diagnostic trouble code that indicates: Decklid Ajar Rear Door Circuit Short To Ground

What causes a B1334 error code?

The most common causes of B1334 include: Wiring harness damage; Short circuit to ground; Door position sensor malfunction; Contact corrosion.

How do I fix a B1334 diagnostic trouble code?

To fix B1334: Visual inspection of the wiring harness in the rear door/trunk lid area. Checking the integrity of wires and contacts. Door position sensor testing. For a complete diagnosis, use an OBD-II scanner.

Is it safe to drive with B1334?

Limited driving only, diagnose soon

How much does it cost to fix B1334?

The estimated repair cost for B1334 is $33–167. Actual cost depends on your vehicle, location, and labor rates.

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