P1614 Code - Chain of IMMU-KEY
Quick Answer
An immobilizer is an electronic device fitted to an automobile which prevents the engine from running unless the correct key is present. Common causes include Faulty or not programmed ignition key, Faulty IMMU, Faulty Engine Control Module (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 indicates Chain of IMMU-KEY.
- Common causes
- Common causes include Faulty or not programmed ignition key, Faulty IMMU, Faulty Engine Control Module (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.
Code P1614 Description
The microcircuit inside the key is activated by a small electromagnetic field which induces current to flow inside the key body, which in turn broadcasts a unique binary code which is read by the automobile's Engine Control Module (ECM). When the ECM determines that the coded key is both current and valid, the ECM activates the fuel-injection sequence.
The immobilizer function of the Infiniti Vehicle Immobilizer System (IVIS) or Nissan Anti-Theft System (NATS) consists of the following:
- NATS ignition key
- NATS antenna amp. located in the ignition key cylinder
- Body control module (BCM) or (IMMU)
- Engine Control Module (ECM)
- Security indicator lamp
What are the Possible Causes of the DTC P1614?
- Faulty or not programmed ignition key
- Faulty IMMU
- Faulty Engine Control Module (ECM)
How to Fix the DTC P1614?
Review the 'Possible Causes' above and visually examine the corresponding wiring harness and connectors. Check for damaged components and inspect connector pins for signs of being broken, bent, pushed out, or corroded.
What is the Cost to Diagnose the Code?
Labor: 1.0
To diagnose the P1614 code, it typically requires 1.0 hour of labor. Rates vary by location, vehicle, and shop. Many shops charge between $80–$150 per hour; dealerships and metro areas may be higher, independents may be lower.
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Information for Specific Makes
- P1614 Buick — Loss Of RIM Serial Data
- P1614 Cadillac — Loss Of RIM Serial Data
- P1614 Chevrolet — Loss Of RIM Serial Data
- P1614 Chrysler — ECU Reset Recovery Occurred
- P1614 Dodge — ECU Reset Recovery Occurred
- P1614 GMC — Loss Of RIM Serial Data
- P1614 Hyundai — Malfunction Indicator Lamp Request Signal High
- P1614 Infiniti — Chain of IMMU-KEY
- P1614 Jeep — ECU Reset Recovery Occurred
- P1614 KIA — Malfunction Indicator Lamp Request Signal High
- P1614 Lexus — Secondary Air Injection System Driver Bank 2
- P1614 Nissan — Chain of IMMU-KEY
- P1614 RAM — ECU Reset Recovery Occurred
- P1614 Toyota — Secondary Air Injection System Driver Bank 2
Frequently Asked Questions about P1614 Code
1. What are the common symptoms of OBDII code P1614 (Chain of IMMU-KEY)?
- Common symptoms include difficulty starting the vehicle, engine stalling, and the inability to start the engine at all.
2. What typically causes OBDII code P1614 to trigger?
- This code is usually triggered by a communication error between the immobilizer unit (IMMU) and the electronic key.
3. How can I diagnose the issue related to OBDII code P1614?
- It is recommended to use a professional diagnostic scan tool to communicate with the vehicle's immobilizer system and identify the exact cause of the error.
4. Can a faulty key or key fob cause OBDII code P1614 to appear?
- Yes, a faulty electronic key or key fob can contribute to triggering code P1614 as it may not be communicating properly with the immobilizer unit.
5. What are some repair tips for resolving OBDII code P1614?
- Repairing or replacing the electronic key, checking the key fob battery, and ensuring the immobilizer unit is functioning correctly are some common repair tips.
6. Is it safe to continue driving with OBDII code P1614 present?
- It is not recommended to drive with this code present, as it can lead to potential issues with starting the vehicle or engine stalling unexpectedly.
7. Can a DIY enthusiast fix OBDII code P1614 on their own?
- While some basic troubleshooting steps can be taken by a DIY enthusiast, resolving the underlying issue related to the immobilizer system may require professional assistance.
8. How much does it typically cost to repair OBDII code P1614?
- The cost of repairing OBDII code P1614 can vary depending on the extent of the issue, but it may involve expenses for diagnostic testing, key replacement, or immobilizer unit repair.
9. Are there any preventive measures to avoid OBDII code P1614 from appearing?
- Ensuring your electronic key is in good condition, replacing the key fob battery regularly, and following proper maintenance schedules can help prevent issues related to this code.
10. Can resetting the vehicle's ECU help clear OBDII code P1614?
- Resetting the ECU may temporarily clear the code, but if the underlying issue with the immobilizer system is not addressed, the code is likely to reappear.
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