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Engine-Codes – GMC – B2355 2017 GMC Sierra

B2355 2017 GMC Sierra Code - Driver Seat Front Vertical Position Sensor Circuit

Quick Answer

The B2355 diagnostic trouble code (DTC) for a 2017 GMC Sierra refers to an issue with the driver seat front vertical position sensor circuit. Common causes include Faulty sensor: The driver seat front vertical position sensor may be defective and require replacement, Wiring issues: Corrosion, damage, or poor connections in the wiring harness can disrupt the signal between the sensor and ECM, ECM malfunction: A malfunction in the electronic control module can prevent proper communication with the sensor. 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
B2355 2017 GMC Sierra indicates Driver Seat Front Vertical Position Sensor Circuit.
Common causes
Common causes include Faulty sensor: The driver seat front vertical position sensor may be defective and require replacement, Wiring issues: Corrosion, damage, or poor connections in the wiring harness can disrupt the signal between the sensor and ECM, ECM malfunction: A malfunction in the electronic control module can prevent proper communication with the sensor.
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 11, 2024
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Code B2355 2017 GMC Sierra Description

The B2355 diagnostic trouble code (DTC) for a 2017 GMC Sierra refers to an issue with the driver seat front vertical position sensor circuit. This sensor is responsible for detecting the vertical position of the driver's seat and sending this information to the vehicle's electronic control module (ECM). The ECM uses this data to adjust the seat position according to the driver's preference and for safety reasons.

OBDII Code B2355 2017 GMC Sierra - Driver Seat Front Vertical Position Sensor Circuit
B2355 2017 GMC Sierra Code - Driver Seat Front Vertical Position Sensor Circuit

Common Causes of B2355 2017 GMC Sierra

  1. Faulty sensor: The driver seat front vertical position sensor may be defective and require replacement.
  2. Wiring issues: Corrosion, damage, or poor connections in the wiring harness can disrupt the signal between the sensor and ECM.
  3. ECM malfunction: A malfunction in the electronic control module can prevent proper communication with the sensor.
  4. Mechanical obstruction: Physical obstructions or debris may prevent the driver's seat from adjusting vertically.
  5. Environmental factors: Exposure to moisture, extreme temperatures, or vibrations can damage the sensor circuit.

Symptoms of B2355 2017 GMC Sierra

  1. Inaccurate seat positioning: The driver's seat may not adjust to the desired vertical position or may move unexpectedly.
  2. Seat not moving: The seat may become stuck in one position and fail to adjust vertically.
  3. Warning light: The vehicle's dashboard may display a warning light indicating an issue with the driver seat sensor.
  4. Unusual noises: The driver's seat may produce unusual noises when attempting to adjust its vertical position.

How to Fix B2355 2017 GMC Sierra

  1. Diagnostic scan: Use a diagnostic scanner to retrieve the specific fault code and identify the exact cause of the issue.
  2. Sensor replacement: Replace the faulty driver seat front vertical position sensor with a new one.
  3. Wiring inspection: Inspect the wiring harness for any damage, corrosion, or loose connections. Repair or replace as needed.
  4. ECM reset: Reset the electronic control module to clear any stored error codes and recalibrate the sensor circuit.
  5. Test and verify: Test the driver's seat adjustment function to ensure the issue has been resolved and the sensor is functioning correctly.

Cost to Fix B2355 2017 GMC Sierra

The cost of repairing a driver seat front vertical position sensor circuit issue in a 2017 GMC Sierra can vary depending on the specific cause of the problem and the labor rates in your area. On average, the parts for this repair could range from $100 to $300, while the labor costs may add another $100 to $200. Overall, you can expect a total repair cost of around $200 to $500 for this issue. Keep in mind that prices may fluctuate based on location, vehicle make and model, and the availability of parts. Be sure to consult with a qualified mechanic or dealership for a more accurate estimate based on your individual circumstances.

What does this mean?

Tech Notes for B2355 2017 GMC Sierra

B1855:01 Driver Seat Front Vertical Position Sensor Circuit Short to Battery

B1855:02 Driver Seat Front Vertical Position Sensor Circuit Short to Ground

B1855:06 Driver Seat Front Vertical Position Sensor Circuit Low Voltage/Open

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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 B2355 2017 GMC Sierra Code

1. What are the common symptoms of OBDII code B2355 in a 2017 GMC Sierra?

The common symptoms of code B2355 include malfunctioning power seat adjustments, incorrect seat positioning, and warning lights illuminated on the dashboard.

2. What causes the OBDII code B2355 in a 2017 GMC Sierra?

The code B2355 is triggered when there is a fault in the driver seat front vertical position sensor circuit, which can be caused by wiring issues, sensor malfunctions, or electronic control module (ECM) failures.

3. How can I diagnose the OBDII code B2355 in my 2017 GMC Sierra?

Diagnosing code B2355 involves using a scan tool to retrieve the trouble codes, checking the wiring and connections related to the driver seat front vertical position sensor, and testing the sensor itself for proper functionality.

4. Can I still drive my 2017 GMC Sierra with the OBDII code B2355 present?

It is not recommended to drive the vehicle with the OBDII code B2355 present, as it can affect the proper functioning of the driver seat adjustments and potentially compromise safety.

5. What are the repair options for fixing the OBDII code B2355 in a 2017 GMC Sierra?

Repair options for code B2355 include repairing or replacing damaged wiring, fixing faulty connections, replacing the driver seat front vertical position sensor, or addressing any ECM issues.

6. How much does it typically cost to repair the OBDII code B2355 in a 2017 GMC Sierra?

The cost of repairing the OBDII code B2355 can vary depending on the extent of the issue, the parts needed for replacement, and labor costs. It is advisable to consult with a professional mechanic for an accurate estimate.

7. Can I reset the OBDII code B2355 in my 2017 GMC Sierra myself?

While you can attempt to clear the trouble code using an OBDII scanner, it is crucial to address the underlying issue causing the code before resetting it. Simply clearing the code without fixing the problem may result in it reoccurring.

8. Are there any preventive measures to avoid the OBDII code B2355 in a 2017 GMC Sierra?

Regularly inspecting the wiring and connections related to the driver seat front vertical position sensor, ensuring proper maintenance of the power seat adjustments, and addressing any issues promptly can help prevent the occurrence of code B2355.

9. How long does it take to repair the OBDII code B2355 in a 2017 GMC Sierra?

The repair time for code B2355 can vary depending on the specific cause of the issue, the availability of parts, and the expertise of the mechanic. It could range from a few hours to a full day in some cases.

10. Can a DIY enthusiast with basic automotive skills fix the OBDII code B2355 in a 2017 GMC Sierra?

While some aspects of diagnosing and repairing code B2355 may be within reach of DIY enthusiasts, it is recommended to consult with a professional mechanic or technician for accurate diagnosis and proper repair to ensure the issue is resolved effectively.

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