AutoCodes – Generic – B1E40

B1E40 Code - 3rd Row Seat Tailgate Switch Stuck

Quick Answer

The Power Rear Folding Seat Module monitors the Power Folding Seat Switch. Common causes include Faulty Power Folding Seat Switch, Power Folding Seat Switch harness is open or shorted, Power Folding Seat 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
B1E40 indicates 3rd Row Seat Tailgate Switch Stuck.
Common causes
Common causes include Faulty Power Folding Seat Switch, Power Folding Seat Switch harness is open or shorted, Power Folding Seat 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.
AI answers can be wrong. Verify repairs with testing. Open full chat
Code Popularity 588
How popular is this code, among other codes? Low
Table of contents Created and updated by William Orellana on Sep 03, 2019
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Code B1E40 Description

The Power Rear Folding Seat Module monitors the Power Folding Seat Switch. When the Power Rear Folding Seat Module senses the Tailgate switch input for longer than 50 seconds, this code will set.
OBDII Code B1E40 - 3rd Row Seat Tailgate Switch Stuck - AutoCodes.com
B1E40 Code - 3rd Row Seat Tailgate Switch Stuck

What are the Possible Causes of the DTC B1E40?

  • Faulty Power Folding Seat Switch
  • Power Folding Seat Switch harness is open or shorted
  • Power Folding Seat Switch circuit poor electrical connection
  • Faulty Power Rear Folding Seat Module

How to Fix the DTC B1E40?

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 B1E40 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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Information for Specific Makes

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 B1E40 Code

1. What does the OBDII code B1E40 mean?

B1E40 indicates that the 3rd row seat tailgate switch is stuck, meaning the vehicle's control module has detected an issue with the switch's functionality.

2. What are the symptoms of the B1E40 code?

Symptoms include an unresponsive 3rd row seat tailgate switch, inability to fold or adjust the 3rd row seats, and possible warning lights on the dashboard.

3. What causes the B1E40 code to appear?

Common causes include a faulty tailgate switch, dirt or debris obstructing the switch mechanism, damaged wiring, or a malfunctioning control module.

4. How can I diagnose the B1E40 code?

Start by inspecting the tailgate switch for physical damage or debris. Use a diagnostic scanner to confirm the code and check wiring and connections for continuity or corrosion.

5. Can I still drive my vehicle with the B1E40 code?

Yes, the vehicle can still be driven, but the functionality of the 3rd row seat adjustment via the tailgate switch may be compromised.

6. How do I fix the B1E40 code?

Clean or replace the tailgate switch if it's stuck or damaged. Repair any damaged wiring and ensure all connections are secure. Reset the code with a diagnostic tool after repairs.

7. How much does it cost to repair the B1E40 code?

Costs vary depending on the issue. Replacing the tailgate switch typically ranges from $50 to $150, while wiring repairs may cost more depending on labor.

8. Can the B1E40 code clear itself?

No, this code typically requires the issue to be resolved and the code cleared using a diagnostic tool.

9. What tools are needed to fix the B1E40 code?

You'll need a diagnostic scanner, basic hand tools, and possibly a multimeter to check wiring continuity.

10. Can a stuck tailgate switch damage other components?

While unlikely, prolonged use of a faulty switch could overwork related motors or modules, potentially leading to further issues. It's best to address the problem promptly.

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