AutoCodes – Generic – B1657

B1657 Code - Seat Driver Rear Up Circuit Short To Battery

Quick Answer

The Body Control Module (BCM) monitors the Seat Driver Rear Up Motor. Common causes include Faulty Seat Driver Rear Up Motor, Seat Driver Rear Up Motor harness is open or shorted, Seat Driver Rear Up 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: B1657 indicates Seat Driver Rear Up Circuit Short To Battery.
Common causes: Common causes include Faulty Seat Driver Rear Up Motor, Seat Driver Rear Up Motor harness is open or shorted, Seat Driver Rear Up 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.

Save to My Repairs My Repairs

AI answers can be wrong. Verify repairs with testing. Open full chat

Code Popularity 5,247

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 May 28, 2019

Description
Possible Causes
How To Fix
Cost to Diagnose
FAQs
Comments
Add Comment

💬 Need more help? Ask Coddy for instant answers — it's free!

Code B1657 Description

The Body Control Module (BCM) monitors the Seat Driver Rear Up Motor. The BCM sets the OBDII code when the Seat Driver Rear Up Motor is not to factory specifications.

OBDII Code B1657 - Seat Driver Rear Up Circuit Short To Battery - AutoCodes.com — B1657 Code - Seat Driver Rear Up Circuit Short To Battery

What does this mean?

What are the Possible Causes of the DTC B1657?

Faulty Seat Driver Rear Up Motor
Seat Driver Rear Up Motor harness is open or shorted
Seat Driver Rear Up Motor circuit poor electrical connection
Faulty Body Control Module (BCM)

How to Fix the DTC B1657?

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 B1657 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 B1657 code?

Need more information on how to fix the B1657 code? Get Access to Factory Service Manuals

Need Help with the Code?

Get the B1657 code diagnosed by a professional: Find a repair shop in your area

Information for Specific Makes

B1657 Acura — Rear Bumper LF Antenna Circuit Short
B1657 Honda — Rear Bumper LF Antenna Circuit Short

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.