Engine-Codes.com
Engine-Codes – Generic – B1399

B1399 Code - Personalised Key Synchronisation System Programming Failure

Quick Answer

The B1399 diagnostic trouble code (DTC) refers to a Personalised Key Synchronisation System Programming Failure. Common causes include Faulty key fob or key transponder, Malfunctioning immobilizer system, Wiring or communication issue between key and immobilizer system. Severity is High - diagnose this code as soon as possible. Driving is not recommended if the warning light is flashing, the engine runs poorly, or safety-related symptoms are present.

What it means
B1399 indicates Personalised Key Synchronisation System Programming Failure.
Common causes
Common causes include Faulty key fob or key transponder, Malfunctioning immobilizer system, Wiring or communication issue between key and immobilizer system.
Severity
High - diagnose this code as soon as possible.
Can I drive?
Driving is not recommended if the warning light is flashing, the engine runs poorly, or safety-related symptoms are present.
What is this?
Table of contents Created and updated by William Orellana on Sep 09, 2024
💬 Need more help? Ask Auto Expert for instant answers — it's free!
AutoCodes App

Fix Your Car Smarter

Try the New AutoCodes App!

Get complete OBDII diagnostics, repair solutions, and cost estimates, plus AI chat support on demand.

AutoCodes App on Google Play

Code B1399 Description

The B1399 diagnostic trouble code (DTC) refers to a Personalised Key Synchronisation System Programming Failure. This code indicates that there is a problem with the synchronization between the vehicle's key and the immobilizer system. The personalized key synchronisation system is a security feature that ensures that only authorized keys can start the vehicle. When this system fails to program or synchronize properly, it can result in the vehicle not starting or experiencing other issues related to the immobilizer system.

OBDII Code B1399 - Personalised Key Synchronisation System Programming Failure
B1399 Code - Personalised Key Synchronisation System Programming Failure

Common Causes of B1399

  1. Faulty key fob or key transponder
  2. Malfunctioning immobilizer system
  3. Wiring or communication issue between key and immobilizer system
  4. Problem with the vehicle's electronic control unit (ECU)

Symptoms of B1399

  1. Engine not starting or stalling shortly after starting
  2. Immobilizer warning light illuminated on the dashboard
  3. Key fob not working to unlock or lock the vehicle
  4. Vehicle starting intermittently or unpredictably

How to Fix B1399

  1. Check the key fob battery and replace if necessary
  2. Re-synchronize the key fob with the immobilizer system
  3. Inspect and repair any wiring or communication issues between the key and immobilizer system
  4. If the issue persists, have the vehicle's ECU checked and reprogrammed if needed

Cost to Fix B1399

The typical repair costs for addressing a Personalised Key Synchronisation System Programming Failure can vary depending on the specific cause of the issue. In general, the parts and labor required for this repair could range from $200 to $500. However, it's important to note that the specific diagnosis time and labor rates at auto repair shops can vary based on factors such as location, vehicle make and model, and engine type. It's advisable to check with local auto repair shops for a more accurate estimate.

Need more information about the B1399 code?

Need more information on how to fix the B1399 code? Get Access to Factory Service Manuals

Need Help with the Code?

Get the B1399 code diagnosed by a professional: Find a repair shop in your area

Code B1399 Information for Specific Makes

  • B1399 Ford — Personalised Key Synchronisation System Programming Failure
  • B1399 Lincoln — Personalised Key Synchronisation System Programming Failure
  • B1399 Mercury — Personalised Key Synchronisation System Programming Failure
About the author: William Orellana is a Master Mechanic and Mechanical Engineer with over 30 years of experience diagnosing and repairing vehicles. Learn more about his background.

Frequently Asked Questions about B1399 Code

1. What are the common symptoms of OBDII code B1399 - Personalised Key Synchronisation System Programming Failure?

The common symptoms include difficulty starting the vehicle, intermittent starting issues, and the immobilizer system not recognizing the key.

2. What are the possible causes of OBDII code B1399?

Possible causes include a faulty key fob, issues with the immobilizer system, a damaged key transponder, or a malfunction in the vehicle's security system.

3. How can I diagnose the OBDII code B1399?

Diagnosing this code typically involves using a scan tool to retrieve the code, checking the key fob battery, inspecting the key transponder, and verifying the immobilizer system's connections.

4. Can I repair OBDII code B1399 at home?

Depending on the cause, some repairs for this code can be done at home. These may include replacing the key fob battery, reprogramming the key, or resetting the immobilizer system.

5. Is it safe to continue driving with OBDII code B1399 present?

It's not recommended to continue driving with this code unresolved, as it may lead to starting issues or potential immobilization of the vehicle in the future.

6. How much does it typically cost to repair OBDII code B1399 at a dealership or repair shop?

The cost of repairing this code can vary depending on the cause and the labor rates of the service provider. It's best to get a diagnostic assessment to determine the exact cost.

7. Can a DIY enthusiast fix OBDII code B1399 on their own?

Some DIY enthusiasts with knowledge of automotive systems may be able to troubleshoot and repair this code on their own, especially if it involves simple tasks like replacing the key fob battery.

8. Are there any preventative measures to avoid OBDII code B1399 from occurring?

Regularly checking the key fob battery, ensuring proper key maintenance, and addressing any starting issues promptly can help prevent the occurrence of this code.

9. How long does it typically take to resolve OBDII code B1399?

The time to resolve this code can vary depending on the cause and the complexity of the repair. Simple fixes like replacing a key fob battery may only take a few minutes, while more complex issues can take longer.

10. Are there any recalls related to OBDII code B1399?

Recalls related to this specific code may vary depending on the vehicle make and model. It's advisable to check with the manufacturer or a dealership for any related recalls.

Discuss the causes and fixes for B1399 OBDII Code

Submit a New Comment

Code B1399 comments

No comments found for this page.