Engine-Codes.com
Engine-Codes – Generic – B1E45

B1E45 Code - 3rd Row Seat Left Backrest Position Sensor Circuit High

Quick Answer

The B1E45 diagnostic trouble code (DTC) indicates a problem with the 3rd Row Seat Left Backrest Position Sensor Circuit being too high. Common causes include Faulty 3rd Row Seat Left Backrest Position Sensor, Damaged wiring or connectors in the sensor circuit, Corrosion or moisture intrusion in the sensor circuit. 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
B1E45 indicates 3rd Row Seat Left Backrest Position Sensor Circuit High.
Common causes
Common causes include Faulty 3rd Row Seat Left Backrest Position Sensor, Damaged wiring or connectors in the sensor circuit, Corrosion or moisture intrusion in the sensor circuit.
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.
What is this?
Table of contents Created and updated by William Orellana on Sep 16, 2024
💬 Need more help? Ask Auto Expert for instant answers — it's free!
AutoCodes App

Fix Your Car Smarter

Try the New AutoCodes App!

Get complete OBDII diagnostics, repair solutions, and cost estimates, plus AI chat support on demand.

AutoCodes App on Google Play

Code B1E45 Description

The B1E45 diagnostic trouble code (DTC) indicates a problem with the 3rd Row Seat Left Backrest Position Sensor Circuit being too high. This sensor is responsible for detecting the position of the left backrest in the third row of seating in the vehicle. When the sensor circuit reports a high voltage signal, it means that the sensor is detecting the backrest in an abnormal or incorrect position. This can lead to issues with the vehicle's safety systems, such as airbag deployment and seatbelt tensioning, as they rely on accurate seat position information to function properly.

OBDII Code B1E45 - 3rd Row Seat Left Backrest Position Sensor Circuit High
B1E45 Code - 3rd Row Seat Left Backrest Position Sensor Circuit High

Common Causes of B1E45

  1. Faulty 3rd Row Seat Left Backrest Position Sensor.
  2. Damaged wiring or connectors in the sensor circuit.
  3. Corrosion or moisture intrusion in the sensor circuit.
  4. Electrical issues in the vehicle's wiring harness.
  5. Impact or physical damage to the sensor or seat components.

Symptoms of B1E45

  1. Airbag warning light illuminated on the dashboard.
  2. Seatbelt warning light activated even when seatbelt is buckled.
  3. Inconsistent or erratic movement of the 3rd-row seat backrest.
  4. Safety systems such as airbags not deploying properly in a collision.
  5. Unusual noises coming from the seat area when adjusting the backrest.

How to Fix B1E45

  1. Begin by diagnosing the specific cause of the issue using a diagnostic scan tool to read the DTC and pinpoint the problem area.
  2. Inspect the wiring and connectors related to the 3rd Row Seat Left Backrest Position Sensor for any damage or corrosion. Repair or replace as needed.
  3. Test the sensor itself for proper functionality and replace if found to be faulty.
  4. Clear the DTC from the vehicle's computer system using the diagnostic scan tool.
  5. Perform a test drive to ensure that the issue has been resolved and that the sensor is now reporting accurate seat position data.

Cost to Fix B1E45

The typical repair costs for addressing a B1E45 DTC can vary depending on the specific cause of the issue and the labor rates in your area. On average, you can expect to pay between $150 to $300 for parts and labor to repair the 3rd Row Seat Left Backrest Position Sensor Circuit High problem. Keep in mind that diagnostic time and labor rates at auto repair shops can vary, so it's best to check with local shops for a more accurate estimate based on your vehicle make and model.

Need more information about the B1E45 code?

Need more information on how to fix the B1E45 code? Get Access to Factory Service Manuals

Need Help with the Code?

Get the B1E45 code diagnosed by a professional: Find a repair shop in your area

Code B1E45 Information for Specific Makes

  • B1E45 Chrysler — 3rd Row Seat Left Backrest Position Sensor Circuit High
  • B1E45 Dodge — 3rd Row Seat Left Backrest Position Sensor Circuit High
  • B1E45 Jeep — 3rd Row Seat Left Backrest Position Sensor Circuit High
  • B1E45 RAM — 3rd Row Seat Left Backrest Position Sensor Circuit High
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 B1E45 Code

1. What does OBDII code B1E45 mean?

Code B1E45 indicates a problem with the 3rd Row Seat Left Backrest Position Sensor Circuit reporting a high voltage issue.

2. What are the common symptoms of code B1E45?

Symptoms may include the 3rd-row seat backrest not adjusting properly, a warning light on the dashboard, or difficulty folding or reclining the seat.

3. What causes code B1E45?

Common causes include a faulty backrest position sensor, damaged wiring or connectors, or a malfunction in the seat control module.

4. Can I still drive with code B1E45 active?

Yes, you can still drive, but the 3rd-row seat may not function properly, which could affect passenger comfort or seat safety features.

5. How do you diagnose code B1E45?

A technician will use a scan tool to confirm the code, inspect the wiring and connectors for damage, and test the sensor and seat control module for functionality.

6. Is code B1E45 caused by a blown fuse?

While unlikely, a blown fuse in the seat control system could contribute to the issue. It’s worth checking as part of the diagnosis.

7. How can I fix code B1E45?

Repairs may involve replacing the backrest position sensor, repairing damaged wiring, or reprogramming or replacing the seat control module.

8. How much does it cost to repair code B1E45?

Repair costs vary depending on the issue but may range from $150 to $500, including parts and labor.

9. Can I reset code B1E45 without repairing the issue?

While you can clear the code with a scan tool, it will likely return if the underlying problem isn’t resolved.

10. What tools are needed to troubleshoot code B1E45?

You’ll need an OBDII scan tool, a multimeter to test voltage and continuity, and possibly wiring diagrams for the seat control system.

Discuss the causes and fixes for B1E45 OBDII Code

Submit a New Comment

Code B1E45 comments

No comments found for this page.