Engine-CodesNissan – P1614 Nissan

P1614 Nissan Code - Chain of IMMU-KEY

Quick Answer

The P1614 Nissan code indicates a communication error within the Immobilizer Key System. Common causes include Faulty Immobilizer Control Module (IMMU), Issues with the Electronic Control Module (ECM), Wiring or connection issues between IMMU and ECM. 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
P1614 Nissan indicates Chain of IMMU-KEY.
Common causes
Common causes include Faulty Immobilizer Control Module (IMMU), Issues with the Electronic Control Module (ECM), Wiring or connection issues between IMMU and ECM.
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.
Table of contents Created and updated by William Orellana on Aug 18, 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 P1614 Nissan Description

The P1614 Nissan code indicates a communication error within the Immobilizer Key System. The Immobilizer Key System is designed to prevent the engine from starting without the correct key. When this code is triggered, it means that there is a lack of communication between the Immobilizer Control Module (IMMU) and the Electronic Control Module (ECM). This can lead to the vehicle not starting or stalling while driving. It is crucial to address this issue promptly as it can leave the vehicle inoperable.

OBDII Code P1614 Nissan - Chain of IMMU-KEY
P1614 Nissan Code - Chain of IMMU-KEY

Common Causes of P1614 Nissan

  1. Faulty Immobilizer Control Module (IMMU)
  2. Issues with the Electronic Control Module (ECM)
  3. Wiring or connection issues between IMMU and ECM
  4. Dead or weak battery in the key fob
  5. Faulty key fob

Symptoms of P1614 Nissan

  1. Engine cranks but does not start
  2. Engine stalls shortly after starting
  3. Loss of power while driving
  4. Immobilizer warning light illuminated on the dashboard
  5. Inability to program new keys

How to Fix P1614 Nissan

  1. Perform a diagnostic scan to confirm the P1614 code and identify the specific cause
  2. Check the key fob battery and replace if necessary
  3. Inspect wiring and connections between IMMU and ECM, repairing any damaged wires or loose connections
  4. If the issue persists, replace the Immobilizer Control Module (IMMU) or Electronic Control Module (ECM) as needed
  5. Clear the code and perform a test to ensure the issue has been resolved

Cost to Fix P1614 Nissan

The cost of repairing a P1614 Nissan code can vary depending on the specific cause of the issue. On average, the cost of parts for this repair can range from $100 to $500, with labor costs adding an additional $100 to $300. Keep in mind that additional diagnostic time may be needed to pinpoint the exact cause of the code, so it's important to consult with a professional mechanic for an accurate estimate.

Tech Notes for P1614 Nissan

This code is usually triggered when a not registered or damaged key is used to start the engine. When the starting operation is carried out five or more times consecutively with the same unregistered key, the system will lock.

If the problem occurs try disconnecting the car battery for about 30 minutes and then try starting the engine with a known registered key. If the problem persists you have to have the dealer erase the code and reprogram the keys again.

When is the Code Detected?

IMMU cannot receive the key ID signal.

Need more information about the P1614 Nissan code?

Need more information on how to fix the P1614 Nissan code? Get Access to Factory Service Manuals

Need Help with the Code?

Get the P1614 Nissan code diagnosed by a professional: Find a repair shop in your area

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 P1614 Nissan Code

1. What is OBDII code P1614 Nissan "Chain of IMMU-KEY"?

This code indicates a communication error between the immobilizer system and the key in a Nissan vehicle.

2. What are the common symptoms of OBDII code P1614 Nissan?

Common symptoms include the engine not starting, the key light flashing on the dashboard, and the vehicle going into "lock" mode.

3. What can cause OBDII code P1614 Nissan to trigger?

Possible causes include a faulty key, a problem with the immobilizer system, issues with the key transponder, or a wiring problem.

4. How can I diagnose OBDII code P1614 Nissan?

Diagnosis typically involves checking the key for damage, verifying the key transponder's functionality, inspecting the immobilizer system components, and scanning for any related trouble codes.

5. What are some DIY repair tips for OBDII code P1614 Nissan?

You can try using a spare key to see if the issue lies with the original key, checking and replacing the key fob battery, or disconnecting the car battery for a few minutes to reset the system.

6. Can OBDII code P1614 Nissan be fixed without professional help?

While some DIY troubleshooting is possible, resolving this code may require specialized equipment and expertise, so consulting a qualified mechanic is advisable.

7. How much does it typically cost to repair OBDII code P1614 Nissan?

The cost of repair can vary depending on the exact cause of the issue, but it may involve key reprogramming, immobilizer system repair, or key replacement, which can range from a few hundred to over a thousand dollars.

8. Is it safe to continue driving with OBDII code P1614 Nissan triggered?

It is not recommended to drive the vehicle with this code active, as it could lead to the engine not starting at a critical time. It's best to address the issue promptly.

9. Can a locksmith help with OBDII code P1614 Nissan?

Locksmiths specializing in automotive services may be able to assist with key-related issues triggering this code, such as key reprogramming or replacement.

10. How can I prevent OBDII code P1614 Nissan from occurring again?

To prevent reoccurrence, ensure your keys are in good condition, replace key fob batteries regularly, and address any warning signs promptly to maintain the immobilizer system's functionality.

Discuss the causes and fixes for P1614 Nissan OBDII Code

  • how do I disable the nats system on my Nissan primera 2003

  • You can't disable the NATS system.

  • hi , i deleted the codes P1610 and 1614 but the car wont start

  • The codes means that you have a problem with the key. Either the key is bad or it has not been programmed to your Nissan. You could clear the code, but if you have to fix the problem first.

  • How much would it,cost to fix this problem?

  • Depends if the problem is the key or reprogram the key, also depends on the dealer hourly rate.

  • would this issue cause the car to not accelerate while in drive?

  • What model and year is your Nissan?

    Issues with the Nissan Anti-Theft System (NATS) (Code P1614 is a NATS system code) will not cause any driveability problems.

  • We have replaced clutch kits and air flow meter for Nissan x-trail 2002.the ignition starts but when u step on the accelerate it switches off..how can you help us?

  • If you have the P1614 code, then either you have try starting the engine with the wrong key or the NATS system antenna is damage.

  • They can give me a phone number to buy a tool.

  • Nissan p1614 I programe key code engine start,but it won't less long,I have to keep programe key code.I need help on this.

  • Does a seized shifter cable have anything to do with a P1614 error?

  • No, I never seen problems with the shifter cable triggering the P1614 code.