AutoCodes – Infiniti – B2623 Infiniti

B2623 Infiniti Code - Inside Key Antenna 3 Circuit

Quick Answer

The Inside Key Antenna 3 detects whether Intelligent Key is inside the vehicle. Common causes include Faulty Inside Key Antenna, Inside Key Antenna harness is open or shorted, Inside Key Antenna 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: B2623 Infiniti indicates Inside Key Antenna 3 Circuit.
Common causes: Common causes include Faulty Inside Key Antenna, Inside Key Antenna harness is open or shorted, Inside Key Antenna 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 1,005

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 Jan 09, 2020

Description
Possible Causes
How To Fix
Cost to Diagnose
FAQs
Comments
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Code B2623 Infiniti Description

The Inside Key Antenna 3 detects whether Intelligent Key is inside the vehicle. The Inside Key Antenna 3 Installed in the center area of the instrument panel. The Diagnostic Trouble Code (DTC) sets when an excessive high or low voltage from inside antenna is sent to the Body Control Module (BCM).

OBDII Code B2623 Infiniti - Inside Key Antenna 3 Circuit - AutoCodes.com — B2623 Infiniti Code - Inside Key Antenna 3 Circuit

What does this mean?

What are the Possible Causes of the DTC B2623 Infiniti?

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

How to Fix the DTC B2623 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 B2623 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 B2623 Infiniti code?

Need more information on how to fix the B2623 Infiniti code? Get Access to Factory Service Manuals

Need Help with the Code?

Get the B2623 Infiniti code diagnosed by a professional: Find a repair shop in your area

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 B2623 Infiniti Code

1. What does the OBDII code B2623 mean on an Infiniti?

B2623 indicates a malfunction in the Inside Key Antenna 3 Circuit, which is part of the keyless entry and ignition system.

2. What are the common symptoms of code B2623 in an Infiniti?

Common symptoms include difficulty starting the vehicle, a key not detected message, and unresponsive keyless entry functions.

3. What causes the B2623 code to appear on an Infiniti?

This code is typically caused by a faulty inside key antenna, damaged wiring, a poor electrical connection, or a malfunctioning keyless entry control module.

4. How is the B2623 code diagnosed in an Infiniti?

A technician will use a scan tool to retrieve the code, visually inspect the wiring and connectors, and test the inside key antenna for proper function.

5. Can I still drive my Infiniti with the B2623 code?

You may still be able to drive, but intermittent issues with starting or unlocking the vehicle could occur. Itâ€™s best to address the issue promptly.

6. How do you fix the B2623 code on an Infiniti?

Repairs may involve replacing the inside key antenna, repairing or replacing damaged wires, or reprogramming the keyless entry system.

7. How much does it cost to repair the B2623 code in an Infiniti?

Costs vary depending on the exact issue but can range from $150 to $500, including parts and labor.

8. Can a weak key fob battery cause the B2623 code?

While a weak key fob battery can cause similar symptoms, it is not the direct cause of the B2623 code, which relates to the inside key antenna circuit.

9. Does the B2623 code require reprogramming the key fob?

Not necessarily. Reprogramming is only needed if a new component, such as the keyless entry module, is installed.

10. Can I fix the B2623 code on my Infiniti myself?

If you have experience with automotive electrical systems, you can check and repair wiring or replace the antenna. Otherwise, itâ€™s best to consult a professional.