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P1610 Infiniti Code - Lock Mode

Quick Answer

When an Infiniti vehicle displays the diagnostic trouble code P1610, it indicates that the vehicle is in "lock mode." This means that the Engine Control Module (ECM) has detected an immobilizer system malfunction. Common causes include Faulty key fob or key transponder, Issues with the immobilizer system wiring, ECM malfunction. 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
P1610 Infiniti indicates Lock Mode.
Common causes
Common causes include Faulty key fob or key transponder, Issues with the immobilizer system wiring, ECM malfunction.
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 Aug 30, 2024
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Code P1610 Infiniti Description

When an Infiniti vehicle displays the diagnostic trouble code P1610, it indicates that the vehicle is in "lock mode." This means that the Engine Control Module (ECM) has detected an immobilizer system malfunction. The immobilizer system is designed to prevent unauthorized starting of the engine, ensuring the vehicle's security. When the ECM detects an issue with the immobilizer system, it triggers the P1610 code and prevents the engine from starting. This can be a frustrating problem for the vehicle owner as it can leave them stranded and unable to drive the vehicle.

OBDII Code P1610 Infiniti - Lock Mode
P1610 Infiniti Code - Lock Mode

Common Causes of P1610 Infiniti

  1. Faulty key fob or key transponder
  2. Issues with the immobilizer system wiring
  3. ECM malfunction
  4. Dead or weak battery in the key fob
  5. Faulty ignition switch

Symptoms of P1610 Infiniti

  1. Engine cranks but does not start
  2. Security light flashing on the dashboard
  3. Inability to start the engine even with a functioning key
  4. Immobilizer system warning message on the instrument cluster

How to Fix P1610 Infiniti

  1. Check the key fob battery - If the key fob battery is weak or dead, replace it with a new one.
  2. Check the key transponder - Ensure that the key transponder is functioning correctly and is recognized by the vehicle's immobilizer system.
  3. Inspect the immobilizer system wiring - Look for any damaged or loose wiring connections and repair or replace them as needed.
  4. Test the ECM - Use a diagnostic tool to scan the ECM for any faults and reset the system if necessary.
  5. Check the ignition switch - Inspect the ignition switch for any signs of damage or malfunction and replace it if needed.

Cost to Fix P1610 Infiniti

The cost of repairing the P1610 code in an Infiniti vehicle can vary depending on the specific cause of the issue. In general, the cost of parts for this repair could range from $50 to $300, while labor costs could range from $100 to $300. Keep in mind that these are just rough estimates, and actual repair costs may differ based on the location of the repair shop, the make and model of the vehicle, and the specific diagnosis and repair process required. It is recommended to get quotes from multiple auto repair shops to find the best price for the repair.

What does this mean?

Tech Notes for P1610 Infiniti

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.

If problem persists after disconnecting the car battery, try the following:

ESCAPE FROM LOCK MODE
1. Turn ignition switch OFF.
2. Turn ignition switch ON with registered key. (Do not start engine.) Wait 5 seconds.
3. Return the key to OFF position.
4. Repeat steps 2 and 3 twice (total of three cycles).
5. Start the engine.





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When is the Code Detected?

When the starting operation is carried out five or more times consecutively with an unregistered ignition key or faulty key.

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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.

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