AutoCodes – Generic – B2031

B2031 Code - Left Power Slide Motor Pulse Signal Error

Quick Answer

The Power Sliding Door Control Unit receives inputs from the switches and sensors in the sliding door system and from B-CAN. Common causes include Faulty Left Power Slide Motor, Left Power Slide Motor harness is open or shorted, Left Power Slide 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: B2031 indicates Left Power Slide Motor Pulse Signal Error.
Common causes: Common causes include Faulty Left Power Slide Motor, Left Power Slide Motor harness is open or shorted, Left Power Slide 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 2,063

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 Sep 06, 2019

Description
Possible Causes
How To Fix
Cost to Diagnose
FAQs
Comments
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Code B2031 Description

The Power Sliding Door Control Unit receives inputs from the switches and sensors in the sliding door system and from B-CAN. It outputs to the slide motor, release actuator, and closer motor to control the movement of the doors. It also controls the sliding door beeper and indicator. There is one rocker switch for each door. Each switch signals its respective power sliding door control unit that the driver wants to open or close that door. The OBDII code sets when the Left Power Sliding Door Control Unit detects a Left Power Slide Motor Pulse Signal Error.

OBDII Code B2031 - Left Power Slide Motor Pulse Signal Error - AutoCodes.com — B2031 Code - Left Power Slide Motor Pulse Signal Error

What does this mean?

What are the Possible Causes of the DTC B2031?

Faulty Left Power Slide Motor
Left Power Slide Motor harness is open or shorted
Left Power Slide Motor circuit poor electrical connection
Faulty Left Power Sliding Door Control Unit

How to Fix the DTC B2031?

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 B2031 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 B2031 code?

Need more information on how to fix the B2031 code? Get Access to Factory Service Manuals

Need Help with the Code?

Get the B2031 code diagnosed by a professional: Find a repair shop in your area

Information for Specific Makes

B2031 Acura — Left Power Slide Motor Pulse Signal Error
B2031 Honda — Left Power Slide Motor Pulse Signal Error
B2031 Lexus — Left Side Current Detection Circuit Malfunction Lo
B2031 Scion — Left Side Current Detection Circuit Malfunction Lo
B2031 Toyota — Left Side Current Detection Circuit Malfunction Lo

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 B2031 Code

1. What are common symptoms of OBDII code B2031 (Left Power Slide Motor Pulse Signal Error)?

- Common symptoms include the power sliding door not opening or closing properly, unusual noises coming from the door motor, and the door getting stuck intermittently.

2. What are the possible causes of OBDII code B2031?

- The code B2031 can be triggered by a faulty power slide motor, damaged wiring or connectors, a malfunctioning control module, or a problem with the door mechanism itself.

3. How can I diagnose the cause of OBDII code B2031?

- Diagnosing the cause of code B2031 typically involves inspecting the power slide motor, checking the wiring and connectors for any damage, and using a diagnostic tool to communicate with the control module.

4. Is it safe to drive with OBDII code B2031 present?

- It is not recommended to drive with code B2031 present, as it can lead to further issues with the power sliding door and potentially compromise the safety and security of the vehicle.

5. Can I repair OBDII code B2031 on my own?

- Repairing OBDII code B2031 may require technical knowledge and expertise in automotive electrical systems. It is recommended to consult a professional mechanic for accurate diagnosis and repair.

6. How much does it typically cost to fix OBDII code B2031?

- The cost of fixing OBDII code B2031 can vary depending on the cause of the issue, the extent of the damage, and labor costs. It is advisable to get a few quotes from different automotive repair shops.

7. Are there any preventive maintenance tips to avoid OBDII code B2031?

- Regularly inspecting and lubricating the power sliding door mechanism, checking the wiring for any signs of wear, and addressing any issues promptly can help prevent code B2031 from occurring.

8. Can OBDII code B2031 affect other vehicle systems?

- While code B2031 specifically relates to the left power slide motor pulse signal error, it is possible that related electrical issues could impact other vehicle systems over time if left unresolved.

9. Will resetting the OBDII system clear code B2031?

- Resetting the OBDII system may temporarily clear the code, but if the underlying issue causing B2031 is not addressed, the code is likely to reappear once the problem is detected again.

10. How urgent is it to address OBDII code B2031?

- It is recommended to address OBDII code B2031 promptly to prevent further damage to the power sliding door system and ensure the safe operation of the vehicle.