[SOLVED] P1614 Code: Immu-Key Chain Issue – How To Fix It!

If you see the engine light on or the service engine soon warning light in your car, it could be due to the fault code P1614. This code is typically caused by a faulty or not programmed ignition key, a faulty IMMU (Immobilizer Control Unit), or a faulty Engine Control Module (ECM).

To fix this issue, you should visually inspect the related wiring harness and connectors, checking for any damaged components or broken, bent, pushed out, or corroded connector pins.

The repair time for this problem is estimated to be around 1.0 hour. It’s important to address this issue promptly to ensure the proper functioning of your vehicle.

Repair Importance Level10.0 (Out of 10)
Estimated Repair TimeApproximately 1.0 hour
Repair Difficulty Level10.0 (Out of 10)

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When the engine light is on or the service engine soon warning light is illuminated, it could be a sign of the p1614 fault code.

  • The symptoms of the automobile fault code p1614 include the Engine Light being ON or the Service Engine Soon Warning Light being illuminated.

The automobile fault code p1614 can be caused by a faulty or not programmed ignition key, faulty IMMU, or a faulty Engine Control Module (ECM).

  • The fault code p1614 can be caused by a faulty or not programmed ignition key, a faulty IMMU, or a faulty Engine Control Module (ECM).

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To fix the p1614 fault code, start by visually inspecting the wiring harness, connectors, and components for any damage or corrosion.

  • To fix the automobile fault code p1614, follow these steps: 1.
  • Check the possible causes mentioned above.
  • 2.
  • Visually inspect the wiring harness and connectors related to the fault code.
  • 3.
  • Look for any damaged components.
  • 4.
  • Check for broken, bent, pushed out, or corroded pins in the connectors.
  • The estimated repair time for this fix is 1.0 hour.

The factors influencing the cost of diagnosing and fixing the automobile fault code p1614 include the estimated repair time of 1.0 hour and the typical hourly rate charged by auto repair shops, which ranges between $75 and $150.

The P1614 fault code refers to a problem with the chain of the Infiniti Vehicle Immobilizer System (IVIS) or Nissan Anti-Theft System (NATS). This system includes the NATS ignition key, NATS antenna amp, Body Control Module (BCM) or (IMMU), Engine Control Module (ECM), and Security indicator lamp. The immobilizer is an electronic device in a car that prevents the engine from running unless the correct key is present. It uses a microcircuit inside the key that is activated by an electromagnetic field.

This induces current to flow inside the key, broadcasting a unique binary code that is read by the ECM.

When the ECM determines that the coded key is current and valid, it activates the fuel-injection sequence. The P1614 fault code specifically indicates an issue with the chain of the IMMU-KEY. This could mean there is a problem with the communication between the NATS ignition key, NATS antenna amp, BCM or IMMU, ECM, or the security indicator lamp.

It is important to diagnose and fix this issue to ensure the proper functioning of the immobilizer system and prevent unauthorized access to the vehicle.

What are the possible causes for the automobile fault code p1614, which triggers the engine light or service engine soon warning light?

If you see the engine light or service engine soon warning light illuminated, it could be due to fault code P1614. This code can be triggered by a few possible causes, including a faulty or not programmed ignition key, a faulty IMMU, or a faulty Engine Control Module (ECM). To fix this issue, start by checking the possible causes mentioned above. Take a close look at the wiring harness and connectors, visually inspect for any damage, and check for broken, bent, pushed out, or corroded connector pins.

How can I fix the p1614 fault code in my car? Are there any specific steps I should follow?

If you’re dealing with the p1614 fault code in your car, you may notice that the Engine Light is ON or the Service Engine Soon Warning Light is illuminated. This issue is typically caused by a faulty or not programmed ignition key, a faulty IMMU, or a faulty Engine Control Module (ECM). To fix it, start by checking the possible causes mentioned earlier. Take a close look at the wiring harness and connectors, visually inspect for any damage, and check for broken, bent, pushed out, or corroded pins in the connectors.

Is it necessary to visually inspect the wiring harness and connectors when troubleshooting the p1614 fault code? What should I look for during the inspection?

When troubleshooting the p1614 fault code, it is important to visually inspect the wiring harness and connectors. Look for any damaged components and check for broken, bent, pushed out, or corroded connector pins. This inspection can help identify any issues that may be causing the fault code. Don’t forget to also check the other possible causes listed above.

p1614 error fault code explained

If you’re seeing the Engine Light ON or the Service Engine Soon Warning Light, it could be due to a faulty or not programmed ignition key, a faulty IMMU, or a faulty Engine Control Module (ECM). To fix this, check the possible causes mentioned above.

Inspect the wiring harness and connectors visually, and look for any damaged components or broken, bent, pushed out, or corroded connector pins.

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