AutoCodes – Nissan – B2420 Nissan

B2420 Nissan Code - Automatic Back Door Close Switch

Quick Answer

The Automatic Back Door Control Module monitors the Automatic Back Door Close Switch. Common causes include Faulty Close Switch, Close Switch harness is open or shorted, Close Switch 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: B2420 Nissan indicates Automatic Back Door Close Switch.
Common causes: Common causes include Faulty Close Switch, Close Switch harness is open or shorted, Close Switch 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 5,265

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 Dec 08, 2019

Description
Possible Causes
How To Fix
Cost to Diagnose
FAQs
Comments
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Code B2420 Nissan Description

The Automatic Back Door Control Module monitors the Automatic Back Door Close Switch. The OBDII code sets when the Automatic Back Door Control Module cannot detect a malfunction of the Close Switch during automatic operation of the back door.

OBDII Code B2420 Nissan - Automatic Back Door Close Switch - AutoCodes.com — B2420 Nissan Code - Automatic Back Door Close Switch

What does this mean?

What are the Possible Causes of the DTC B2420 Nissan?

Faulty Close Switch
Close Switch harness is open or shorted
Close Switch circuit poor electrical connection
Faulty Automatic Back Door Control Module

How to Fix the DTC B2420 Nissan?

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 B2420 Nissan 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.

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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 B2420 Nissan Code

1. What are the common symptoms of OBDII code B2420 in a Nissan related to the Automatic Back Door Close Switch?

- Common symptoms include the automatic back door failing to close properly, the back door closing intermittently, or the back door not responding to the automatic close switch.

2. What could be the possible causes of OBDII code B2420 in a Nissan?

- The code B2420 in a Nissan is commonly triggered by a faulty automatic back door close switch, wiring issues in the back door system, or a malfunctioning control module.

3. How can I diagnose the issue causing OBDII code B2420 in my Nissan?

- To diagnose the issue, you can use a diagnostic scanner to read the OBDII code, inspect the wiring and connections in the back door system, and test the functionality of the automatic back door close switch.

4. Is it safe to continue using the vehicle with OBDII code B2420 related to the Automatic Back Door Close Switch?

- It is recommended to address the issue promptly to avoid potential safety hazards, such as the back door opening unexpectedly while driving or the back door failing to close securely.

5. Can I repair OBDII code B2420 in my Nissan by replacing the Automatic Back Door Close Switch myself?

- Depending on your skill level and access to tools, you may be able to replace the automatic back door close switch yourself. However, it is advisable to consult a professional mechanic for proper diagnosis and repair.

6. Are there any temporary solutions to address OBDII code B2420 until I can get it fixed?

- One temporary solution could be manually closing the back door until the automatic close switch is repaired. However, it is best to address the issue promptly to prevent further complications.

7. How much does it typically cost to repair OBDII code B2420 related to the Automatic Back Door Close Switch in a Nissan?

- The cost of repairing OBDII code B2420 can vary depending on the root cause of the issue, but it may involve replacing the automatic back door close switch, repairing wiring, or reprogramming the control module.

8. Will resetting the OBDII code B2420 in my Nissan make the issue go away permanently?

- Resetting the OBDII code may temporarily clear the warning light, but it will not fix the underlying issue causing code B2420 related to the Automatic Back Door Close Switch. Proper diagnosis and repair are necessary for a permanent solution.

9. Can extreme weather conditions affect the occurrence of OBDII code B2420 in a Nissan?

- Extreme weather conditions, such as extreme heat or cold, can potentially affect the performance of the automatic back door system and contribute to issues triggering OBDII code B2420.

10. How long does it typically take to repair OBDII code B2420 related to the Automatic Back Door Close Switch in a Nissan?

- The repair time for OBDII code B2420 can vary depending on the complexity of the issue and the availability of parts. It may take a few hours to a full day to diagnose and repair the problem effectively.