AutoCodes – Generic – B2637

B2637 Code - Driver B/L Door Fail

Quick Answer

The Air Condition (A/C) Automatic Amplifier monitors the Front Mode Door Motor position. Common causes include Faulty Front Mode Door Motor, Front Mode Door Motor harness is open or shorted, Front Mode Door Motor 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: B2637 indicates Driver B/L Door Fail.
Common causes: Common causes include Faulty Front Mode Door Motor, Front Mode Door Motor harness is open or shorted, Front Mode Door Motor 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 1,766

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 B2637 Description

The Air Condition (A/C) Automatic Amplifier monitors the Front Mode Door Motor position. The A/C Automatic Amplifier sets the Diagnostic Trouble Code (DTC) when the malfunctioning door position is detected at B/L position.

OBDII Code B2637 - Driver B/L Door Fail - AutoCodes.com — B2637 Code - Driver B/L Door Fail

What does this mean?

What are the Possible Causes of the DTC B2637?

Faulty Front Mode Door Motor
Front Mode Door Motor harness is open or shorted
Front Mode Door Motor circuit poor electrical connection
Front Mode Door Motor control linkage installation condition
Faulty Air Condition (A/C) Automatic Amplifier

How to Fix the DTC B2637?

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 B2637 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 B2637 code?

Need more information on how to fix the B2637 code? Get Access to Factory Service Manuals

Need Help with the Code?

Get the B2637 code diagnosed by a professional: Find a repair shop in your area

Information for Specific Makes

B2637 Infiniti — Driver B/L Door Fail
B2637 Nissan — Driver B/L Door Fail

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 B2637 Code

1. What are the common symptoms of OBDII code B2637 (Driver B/L Door Fail)?

The common symptoms include the driver-side door failing to lock or unlock properly, the door not responding to the central locking system, or the door lock making unusual sounds.

2. What are the possible causes of OBDII code B2637?

The code B2637 typically indicates a problem with the driver-side door lock actuator, a faulty door latch mechanism, damaged wiring, or a malfunctioning control module.

3. How can I diagnose the issue related to OBDII code B2637?

You can diagnose the issue by visually inspecting the door lock mechanism, checking the wiring harness for any damage, and using a diagnostic scanner to read the specific fault codes related to the driver-side door.

4. What are some repair tips for fixing OBDII code B2637?

Repair tips may include replacing the door lock actuator, repairing or replacing the door latch mechanism, repairing any damaged wiring, or reprogramming the control module if necessary.

5. Can I continue driving with OBDII code B2637 present?

While it may be possible to continue driving with the code present, it is recommended to address the issue promptly to ensure the proper functioning of the driver-side door lock for safety and security reasons.

6. How much does it typically cost to repair OBDII code B2637?

The cost of repairing OBDII code B2637 can vary depending on the specific cause of the issue, but it may range from a few hundred to a few thousand dollars, including parts and labor.

7. Is OBDII code B2637 a serious problem?

While OBDII code B2637 is not a critical issue that affects the drivability of the vehicle, it can impact the security and convenience of using the driver-side door. It is best to address the problem in a timely manner.

8. Can I reset OBDII code B2637 without fixing the underlying issue?

You can clear the code temporarily by resetting the vehicle's computer, but the code is likely to return if the underlying issue with the driver-side door lock is not addressed.

9. How long does it typically take to repair OBDII code B2637?

The repair time for OBDII code B2637 can vary depending on the complexity of the issue and the availability of parts, but it may take a few hours to a full day to complete the repair.

10. Can I fix OBDII code B2637 myself, or do I need a professional mechanic?

While some DIY enthusiasts may be able to address the issue themselves, it is recommended to consult a professional mechanic, especially if you are not familiar with automotive electrical systems and door mechanisms.