AutoCodes – Infiniti – B2401 Infiniti

B2401 Infiniti Code - Automatic Back Door Ignition Power Supply Circuit

Quick Answer

The Body Control Module (BCM) monitors the Automatic Back Door Ignition Power Supply Circuit. Common causes include Faulty Automatic Back Door Control Module, Automatic Back Door Control Module harness is open or shorted, Automatic Back Door Control Module 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
B2401 Infiniti indicates Automatic Back Door Ignition Power Supply Circuit.
Common causes
Common causes include Faulty Automatic Back Door Control Module, Automatic Back Door Control Module harness is open or shorted, Automatic Back Door Control Module 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.
AI answers can be wrong. Verify repairs with testing. Open full chat
Code Popularity 1,507
How popular is this code, among other codes? Low
Table of contents Created and updated by William Orellana on Dec 08, 2019
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Code B2401 Infiniti Description

The Body Control Module (BCM) monitors the Automatic Back Door Ignition Power Supply Circuit. The BCM sets the OBDII code when the Automatic Back Door Control Module cannot detect ignition switch ON signal via CAN communication with BCM.
OBDII Code B2401 Infiniti - Automatic Back Door Ignition Power Supply Circuit - AutoCodes.com
B2401 Infiniti Code - Automatic Back Door Ignition Power Supply Circuit

What are the Possible Causes of the DTC B2401 Infiniti?

  • Faulty Automatic Back Door Control Module
  • Automatic Back Door Control Module harness is open or shorted
  • Automatic Back Door Control Module circuit poor electrical connection
  • Faulty Body Control Module (BCM)

How to Fix the DTC B2401 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 B2401 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 B2401 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 B2401 Infiniti Code

1. What are the common symptoms of OBDII code B2401 in an Infiniti related to the Automatic Back Door Ignition Power Supply Circuit?

- The common symptoms include the automatic back door failing to open or close, erratic behavior of the back door, and possible issues with the vehicle's ignition power supply.

2. What can cause the OBDII code B2401 to be triggered in an Infiniti?

- The code B2401 in an Infiniti is typically triggered by faults in the automatic back door ignition power supply circuit, such as wiring issues, blown fuses, or a malfunctioning back door control module.

3. How can I diagnose the source of the OBDII code B2401 in my Infiniti?

- To diagnose the issue, it is recommended to perform a thorough inspection of the automatic back door system, check the wiring for any damage or loose connections, test the fuses related to the back door circuit, and use a diagnostic scanner to retrieve specific trouble codes.

4. Are there any simple repair tips for fixing the OBDII code B2401 in an Infiniti?

- Simple repair tips include checking and replacing any blown fuses related to the back door circuit, ensuring all wiring connections are secure and free of corrosion, and resetting the back door control module by disconnecting the vehicle's battery for a few minutes.

5. Can a DIY enthusiast fix the OBDII code B2401 in an Infiniti, or is professional help recommended?

- While some basic troubleshooting steps can be performed by a DIY enthusiast, complex issues related to the automatic back door ignition power supply circuit may require professional diagnosis and repair to ensure proper resolution.

6. Is it safe to continue driving my Infiniti with the OBDII code B2401 present?

- It is not recommended to continue driving your Infiniti with the OBDII code B2401 present, as it indicates a potential issue with the automatic back door system that could affect vehicle safety and functionality.

7. How much can I expect to pay for repairing the OBDII code B2401 in my Infiniti at a dealership or auto repair shop?

- The cost of repairing the OBDII code B2401 in an Infiniti can vary depending on the exact cause of the issue and the labor rates of the dealership or auto repair shop. It is advisable to request a quote for the specific repair needed.

8. Will resetting the OBDII code B2401 in my Infiniti make the issue go away permanently?

- Resetting the OBDII code B2401 may clear the code temporarily, but if the underlying issue with the automatic back door ignition power supply circuit is not addressed and fixed, the code is likely to reappear.

9. Can extreme weather conditions or environmental factors contribute to triggering the OBDII code B2401 in an Infiniti?

- Yes, extreme weather conditions or exposure to moisture can potentially damage the wiring or components in the automatic back door system, leading to malfunctions that trigger the OBDII code B2401.

10. Are there any recalls or technical service bulletins related to the OBDII code B2401 in Infiniti vehicles?

- It is recommended to check with an authorized Infiniti dealership or visit the manufacturer's website to inquire about any recalls or technical service bulletins related to the OBDII code B2401 in specific Infiniti models.

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