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Engine-Codes – Infiniti – B2190 Infiniti

B2190 Infiniti Code - NATS Antenna Amp

Quick Answer

The B2190 code for Infiniti vehicles refers to an issue with the NATS (Nissan Anti-Theft System) Antenna Amplifier. Common causes include Electrical faults in the NATS Antenna Amplifier, Wiring issues or shorts in the system, Component failure within the antenna amplifier. 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
B2190 Infiniti indicates NATS Antenna Amp.
Common causes
Common causes include Electrical faults in the NATS Antenna Amplifier, Wiring issues or shorts in the system, Component failure within the antenna amplifier.
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 12, 2024
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Code B2190 Infiniti Description

The B2190 code for Infiniti vehicles refers to an issue with the NATS (Nissan Anti-Theft System) Antenna Amplifier. The NATS system is designed to prevent unauthorized starting of the vehicle by disabling the engine's ignition system. The antenna amplifier is a crucial component of this system, as it helps to detect the presence of the key fob and communicate with the vehicle's immobilizer system. When the NATS Antenna Amp malfunctions, it can lead to difficulties in starting the vehicle or even prevent it from starting altogether.

OBDII Code B2190 Infiniti - NATS Antenna Amp
B2190 Infiniti Code - NATS Antenna Amp

Common Causes of B2190 Infiniti

  1. Electrical faults in the NATS Antenna Amplifier
  2. Wiring issues or shorts in the system
  3. Component failure within the antenna amplifier
  4. Key fob battery low or dead
  5. Interference from other electronic devices

Symptoms of B2190 Infiniti

  1. Difficulty starting the vehicle
  2. Engine cranks but does not start
  3. Security light flashing on the dashboard
  4. Immobilizer system activation
  5. Inability to start the vehicle

How to Fix B2190 Infiniti

  1. Diagnose the issue by using a scan tool to retrieve the specific code and test the NATS Antenna Amplifier for proper functionality.
  2. Inspect the wiring and connections related to the antenna amplifier for any signs of damage or corrosion.
  3. Replace the NATS Antenna Amplifier if it is found to be faulty, ensuring the new component is properly calibrated and programmed to the vehicle's immobilizer system.
  4. Test the vehicle to verify that the issue has been resolved and that the engine starts without any problems.
  5. Clear the diagnostic trouble codes from the vehicle's system to reset any stored error codes and ensure proper operation.

Cost to Fix B2190 Infiniti

The typical repair costs for addressing a B2190 code related to the NATS Antenna Amplifier in an Infiniti vehicle can range from $200 to $500, including parts and labor. 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. Auto repair shops commonly charge between $80 and $150 per hour for labor, with rates potentially higher in metropolitan areas or at dealerships, and lower at independent shops. It's recommended to check with local shops for a more accurate estimate based on your specific circumstances.

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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.

Frequently Asked Questions about B2190 Infiniti Code

1. What does OBDII code B2190 for Infiniti indicate?

The B2190 code specifically points to a fault with the NATS Antenna Amp in the vehicle's security system.

2. What are the common symptoms of a B2190 code in an Infiniti?

Common symptoms may include the vehicle not starting, the security light staying on, or issues with the key fob recognition.

3. What are some possible causes of the B2190 NATS Antenna Amp code in an Infiniti?

Potential causes include a faulty NATS Antenna Amp, issues with the vehicle's security system, or damaged wiring related to the system.

4. How can I diagnose a B2190 code in my Infiniti?

Diagnosis typically involves using a scan tool to read the code, checking the connections to the NATS Antenna Amp, and inspecting the security system components for any visible damage.

5. Is it safe to drive with a B2190 code present in my Infiniti?

It's generally not recommended to drive with a B2190 code, as it can affect the security system and potentially lead to starting issues or other problems.

6. Can I repair a B2190 code in my Infiniti on my own?

Repairing a B2190 code may require specialized knowledge and tools related to the vehicle's security system. It's advisable to consult a professional mechanic for proper diagnosis and repair.

7. How much does it cost to fix a B2190 NATS Antenna Amp code in an Infiniti?

The cost of fixing a B2190 code can vary depending on the underlying cause, the extent of the issue, and labor rates in your area. It's best to get a quote from a trusted mechanic.

8. Are there any preventive measures to avoid a B2190 code in my Infiniti?

Regular maintenance of the vehicle's security system, including checking for loose connections and ensuring proper functioning of the NATS Antenna Amp, can help prevent issues that may trigger a B2190 code.

9. Can a B2190 code be intermittent in an Infiniti?

Yes, a B2190 code can sometimes be intermittent, depending on the nature of the underlying issue with the NATS Antenna Amp or security system components.

10. Is resetting the ECU a possible solution for a B2190 code in an Infiniti?

Resetting the ECU may temporarily clear the B2190 code, but if the underlying issue with the NATS Antenna Amp or security system is not addressed, the code is likely to reappear.

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