AutoCodes – Infiniti – B2801 Infiniti

B2801 Infiniti Code - Quick Charge Activation Signal Error

Quick Answer

The Diagnostic Trouble Code (DTC) sets if the Quick Charger connector disconnection is detected while receiving the quick charge start/stop 1 signal that is transmitted from the quick charger. Common causes include Faulty Quick Charger, Quick Charger harness is open or shorted, Quick Charger 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: B2801 Infiniti indicates Quick Charge Activation Signal Error.
Common causes: Common causes include Faulty Quick Charger, Quick Charger harness is open or shorted, Quick Charger 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 523

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 Feb 10, 2020

Description
Possible Causes
How To Fix
Cost to Diagnose
FAQs
Comments
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Code B2801 Infiniti Description

The Diagnostic Trouble Code (DTC) sets if the Quick Charger connector disconnection is detected while receiving the quick charge start/stop 1 signal that is transmitted from the quick charger.

OBDII Code B2801 Infiniti - Quick Charge Activation Signal Error - AutoCodes.com — B2801 Infiniti Code - Quick Charge Activation Signal Error

What does this mean?

What are the Possible Causes of the DTC B2801 Infiniti?

Faulty Quick Charger
Quick Charger harness is open or shorted
Quick Charger circuit poor electrical connection
Faulty Quick Charger Connector
Faulty Power Delivery Module (PDM)

How to Fix the DTC B2801 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 B2801 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 B2801 Infiniti code?

Need more information on how to fix the B2801 Infiniti code? Get Access to Factory Service Manuals

Need Help with the Code?

Get the B2801 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 B2801 Infiniti Code

1. What are the common symptoms of OBDII code B2801 Infiniti (Quick Charge Activation Signal Error)?

- Common symptoms include the inability to charge the battery, illuminated warning lights on the dashboard, and issues with the hybrid system.

2. What are the possible causes of OBDII code B2801 in an Infiniti vehicle?

- Possible causes include a faulty quick charge control unit, damaged wiring or connectors in the quick charge system, or a malfunctioning battery management system.

3. How can I diagnose the Quick Charge Activation Signal Error (B2801) in my Infiniti?

- Diagnose the code by using a professional OBDII scanner to read the specific error code, inspecting the quick charge system components for damage, and checking the wiring and connectors for any issues.

4. Can I drive my Infiniti with the B2801 code present?

- It is not recommended to drive the vehicle with the B2801 code present, as it can lead to charging issues and potential damage to the hybrid system.

5. How can I repair the Quick Charge Activation Signal Error in my Infiniti?

- Repair options include replacing the faulty quick charge control unit, repairing damaged wiring or connectors, and resetting the error code with a diagnostic tool after the issue has been resolved.

6. Is it safe to continue using the quick charge function in my Infiniti with the B2801 code?

- It is not safe to continue using the quick charge function if the B2801 code is present, as it indicates a problem with the activation signal that could potentially lead to further issues.

7. Can a DIY enthusiast fix the B2801 code in an Infiniti?

- While some basic troubleshooting steps can be taken by a DIY enthusiast, fixing the B2801 code may require specialized tools and expertise, so it is recommended to consult a professional mechanic.

8. How much does it cost to repair the Quick Charge Activation Signal Error in an Infiniti?

- The cost of repair can vary depending on the specific issue causing the B2801 code, but it may involve part replacement, labor costs, and diagnostic fees, which can range from a few hundred to over a thousand dollars.

9. Will resetting the error code make the B2801 issue go away permanently?

- Resetting the error code without addressing the underlying issue will not make the B2801 problem go away permanently. It is important to diagnose and repair the root cause of the code for a lasting solution.

10. Can the B2801 code affect the overall performance of my Infiniti vehicle?

- Yes, the B2801 code can affect the performance of the vehicle, especially in terms of charging capabilities and hybrid system functionality. It is important to address this issue promptly to avoid further complications.