AutoCodes – Infiniti – B2190 Infiniti

B2190 Infiniti Code - NATS Antenna Amp

Quick Answer

The ID verification is performed through the Body Control Module (BCM) and the Nissan Anti Theft System (NATS) Intelligent Key when the push-button ignition switch is pressed. Common causes include Faulty Key Slot, Key Slot harness is open or shorted, Key Slot circuit poor electrical connection. 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 Faulty Key Slot, Key Slot harness is open or shorted, Key Slot circuit poor electrical connection.
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.

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Code Popularity 4,317

How popular is this code, among other codes? Low

Repair Importance Level

Urgent (Diagnose now) (3 / 3)

Repair Difficulty Level

Advanced (Pro) (3 / 3)

What is this?

Table of contents Created and updated by William Orellana on Sep 26, 2019

Description
Possible Causes
How To Fix
Cost to Diagnose
FAQs
Comments
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Code B2190 Infiniti Description

The ID verification is performed through the Body Control Module (BCM) and the Nissan Anti Theft System (NATS) Intelligent Key when the push-button ignition switch is pressed. The BCM prohibits the release of steering lock or start of engine when an unregistered ID of the NATS Intelligent Key is used. The OBDII code is set when there is an inactive communication between key slot and BCM.

OBDII Code B2190 Infiniti - NATS Antenna Amp - AutoCodes.com — B2190 Infiniti Code - NATS Antenna Amp

What does this mean?

What are the Possible Causes of the DTC B2190 Infiniti?

Faulty Key Slot
Key Slot harness is open or shorted
Key Slot circuit poor electrical connection
Faulty Body Control Module (BCM)

How to Fix the DTC B2190 Infiniti?

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 B2190 Infiniti 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.

Need more information about the B2190 Infiniti code?

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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.