OBD Guide
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B2599

Tailgate Release Open Circuit

B2599 is an OBD-II diagnostic trouble code meaning: Tailgate Release Open Circuit. Common causes: broken wires in the rear door harness, malfunction of the rear door electromagnetic lock. Estimated repair cost: $11–111.

Severity
⚠️ Medium
Can you drive?
Limited driving only, diagnose soon
Approx. repair cost
$11–111 (est.)

Symptoms

  • Back door won't open
  • The rear door does not respond to the opening button
  • The rear door opens only mechanically

Causes

  • Broken wires in the rear door harness
  • Malfunction of the rear door electromagnetic lock
  • Damage to the control unit
  • Rear door opener problem
  • Contact corrosion

How to Fix

  1. Check the integrity of the rear door wiring harness
  2. Check the operation of the rear door lock
  3. Check power and ground circuit
  4. Check the operation of the control unit
  5. Replace damaged components

Related codes

B2598B2600B2601

FAQ

What does the B2599 code mean?

B2599 is an OBD-II diagnostic trouble code that indicates: Tailgate Release Open Circuit

What causes a B2599 error code?

The most common causes of B2599 include: Broken wires in the rear door harness; Malfunction of the rear door electromagnetic lock; Damage to the control unit; Rear door opener problem.

How do I fix a B2599 diagnostic trouble code?

To fix B2599: Check the integrity of the rear door wiring harness. Check the operation of the rear door lock. Check power and ground circuit. For a complete diagnosis, use an OBD-II scanner.

Is it safe to drive with B2599?

Limited driving only, diagnose soon

How much does it cost to fix B2599?

The estimated repair cost for B2599 is $11–111. Actual cost depends on your vehicle, location, and labor rates.

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See also: Russian version · NationStat