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Engine-Codes – Generic – B1657

B1657 Code - Seat Driver Rear Up Circuit Short To Battery

Quick Answer

The B1657 diagnostic trouble code (DTC) indicates that there is a short circuit to the battery in the driver's rear seat up circuit. Common causes include Damaged or frayed wiring in the driver's rear seat up circuit, Faulty seat adjustment motor, Malfunctioning control module. 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
B1657 indicates Seat Driver Rear Up Circuit Short To Battery.
Common causes
Common causes include Damaged or frayed wiring in the driver's rear seat up circuit, Faulty seat adjustment motor, Malfunctioning control module.
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 14, 2024
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Code B1657 Description

The B1657 diagnostic trouble code (DTC) indicates that there is a short circuit to the battery in the driver's rear seat up circuit. This means that there is an abnormal connection between the driver's rear seat up circuit and the vehicle's battery, causing an electrical malfunction. The driver's rear seat up circuit is responsible for controlling the movement of the rear seat to adjust its position. When this circuit experiences a short to the battery, it can lead to issues with adjusting the seat, potentially causing discomfort for the driver or passengers.

OBDII Code B1657 - Seat Driver Rear Up Circuit Short To Battery
B1657 Code - Seat Driver Rear Up Circuit Short To Battery

Common Causes of B1657

  1. Damaged or frayed wiring in the driver's rear seat up circuit.
  2. Faulty seat adjustment motor.
  3. Malfunctioning control module.
  4. Issues with the vehicle's battery or charging system.

Symptoms of B1657

  1. Inability to adjust the driver's rear seat position.
  2. Erratic movement of the rear seat when attempting to adjust it.
  3. Unusual noises coming from the seat adjustment mechanism.
  4. Warning light on the dashboard related to the seat adjustment system.

How to Fix B1657

  1. Begin by conducting a thorough inspection of the driver's rear seat up circuit, checking for any damaged or frayed wiring.
  2. Test the seat adjustment motor to determine if it is functioning properly or needs replacement.
  3. Inspect the control module for any signs of malfunction and replace if necessary.
  4. Check the vehicle's battery and charging system to ensure they are operating correctly and address any issues found.

Cost to Fix B1657

The typical repair costs for addressing a B1657 code can vary depending on the specific cause of the issue. In general, the cost of parts for this repair could range from $100 to $300, while labor costs could range from $150 to $400. It's important to note that these are rough estimates, and actual costs may vary based on factors such as location, vehicle make and model, and the extent of the repairs needed. Additionally, diagnostic time and labor rates at auto repair shops can impact the overall cost, with rates typically ranging from $80 to $150 per hour. It's recommended to obtain quotes from local auto repair shops for a more accurate cost estimate.

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Code B1657 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 B1657 Code

1. What are the common symptoms of OBDII code B1657 Seat Driver Rear Up Circuit Short To Battery?

The common symptoms include the driver's seat rear up function not working, seat movement being erratic, or the seat getting stuck in one position.

2. What are the possible causes of OBDII code B1657 Seat Driver Rear Up Circuit Short To Battery?

Possible causes include a short circuit in the wiring harness, a faulty seat control module, a malfunctioning seat motor, or a problem with the power supply to the seat.

3. How can I diagnose the issue related to OBDII code B1657 Seat Driver Rear Up Circuit Short To Battery?

You can start by checking the wiring connections, inspecting the seat control module for any visible damage, testing the seat motor, and using a multimeter to check for voltage irregularities.

4. What is the recommended repair for OBDII code B1657 Seat Driver Rear Up Circuit Short To Battery?

The repair may involve repairing or replacing any damaged wiring, replacing the seat control module or seat motor if faulty, and ensuring a proper power supply to the seat.

5. Can I reset the OBDII code B1657 Seat Driver Rear Up Circuit Short To Battery on my own?

Yes, you can reset the code using an OBDII scanner or by disconnecting the car battery for a few minutes. However, it is important to diagnose and address the root cause of the issue to prevent the code from reappearing.

6. How serious is OBDII code B1657 Seat Driver Rear Up Circuit Short To Battery?

While the issue may not affect the drivability of the vehicle, it can impact the comfort and convenience of adjusting the driver's seat. It is recommended to address the problem to avoid potential safety hazards.

7. Can a DIY enthusiast fix OBDII code B1657 Seat Driver Rear Up Circuit Short To Battery?

Depending on your knowledge and experience with automotive repairs, you may be able to fix the issue yourself by following diagnostic procedures and making necessary repairs to the wiring or components involved.

8. Are there any preventative measures to avoid OBDII code B1657 Seat Driver Rear Up Circuit Short To Battery?

Regularly inspecting the seat controls, avoiding excessive force when adjusting the seat, and handling the wiring carefully during maintenance or repairs can help prevent this code from occurring.

9. How long does it typically take to repair OBDII code B1657 Seat Driver Rear Up Circuit Short To Battery?

The repair time can vary depending on the exact cause of the issue and the availability of replacement parts. It may take anywhere from a few hours to a day to complete the repair.

10. Will ignoring OBDII code B1657 Seat Driver Rear Up Circuit Short To Battery cause further damage?

Continuing to ignore the issue can potentially lead to further electrical problems in the seat control system, affecting other seat functions or even causing a safety hazard. It is best to address the problem promptly.

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