AutoCodes – GMC – B2355 GMC

B2355 GMC Code - Driver Seat Front Vertical Position Sensor Circuit

Quick Answer

The Seat Memory Control Module monitors the position of the seat motors by using hall effect position sensors which are an internal part of each motor. Common causes include Faulty Driver Seat Front Vertical Motor, Driver Seat Front Vertical Motor harness is open or shorted, Driver Seat Front Vertical 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: B2355 GMC indicates Driver Seat Front Vertical Position Sensor Circuit.
Common causes: Common causes include Faulty Driver Seat Front Vertical Motor, Driver Seat Front Vertical Motor harness is open or shorted, Driver Seat Front Vertical 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.

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Code Popularity 4,898

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 Apr 17, 2023

Description
Possible Causes
How To Fix
Tech Notes
Cost to Diagnose
FAQs
Comments
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Code B2355 GMC Description

The Seat Memory Control Module monitors the position of the seat motors by using hall effect position sensors which are an internal part of each motor. The module supplies each sensor with a 12 V reference circuit only when any seat motor is active, and a low side signal circuit. During seat motor operation, the hall effect position sensor provides a determined number of pulse signals for every revolution of the motor shaft. The scan tool displays these pulse signals as counts that range from 0–65,535. The module counts the feedback pulses from each sensor to determine seat position and end-of-travel limits for each of the seat motors. High scan tool count values indicate forward or upward seat positions while low count values indicate rearward or downward seat positions. The Diagnostic Trouble Code (DTC) will be set when there is a fault in the Driver Seat Front Vertical Position Sensor Circuit.

OBDII Code B2355 GMC - Driver Seat Front Vertical Position Sensor Circuit - AutoCodes.com — B2355 GMC Code - Driver Seat Front Vertical Position Sensor Circuit

What does this mean?

What are the Possible Causes of the DTC B2355 GMC?

Faulty Driver Seat Front Vertical Motor
Driver Seat Front Vertical Motor harness is open or shorted
Driver Seat Front Vertical Motor circuit poor electrical connection
Faulty Driver Seat Memory Control Module

How to Fix the DTC B2355 GMC?

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 does this mean?

Code Tech Notes

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

What is the Cost to Diagnose the Code?

Labor: 1.0

To diagnose the B2355 GMC 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 GMC Models

B2355 2014 GMC Sierra — Driver Seat Front Vertical Position Sensor Circuit
B2355 2015 GMC Sierra — Driver Seat Front Vertical Position Sensor Circuit
B2355 2016 GMC Sierra — Driver Seat Front Vertical Position Sensor Circuit
B2355 2017 GMC Sierra — Driver Seat Front Vertical Position Sensor Circuit
B2355 2018 GMC Sierra — Driver Seat Front Vertical Position Sensor Circuit

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 GMC Code

1. What are the common symptoms of OBDII code B2355 in a GMC related to the Driver Seat Front Vertical Position Sensor Circuit?

- Common symptoms include a malfunctioning power seat, inability to adjust the front vertical position of the driver's seat, and potential warning lights on the dashboard.

2. What are the possible causes of OBDII code B2355 in a GMC related to the Driver Seat Front Vertical Position Sensor Circuit?

- Possible causes include a faulty vertical position sensor, damaged wiring or connectors in the sensor circuit, or issues with the power seat control module.

3. How can I diagnose the issue causing OBDII code B2355 in a GMC related to the Driver Seat Front Vertical Position Sensor Circuit?

- Diagnose the issue by checking the wiring and connectors for damage, testing the voltage at the sensor, and verifying proper sensor operation using a diagnostic scanner.

4. Can I repair OBDII code B2355 in a GMC related to the Driver Seat Front Vertical Position Sensor Circuit myself?

- Depending on your skill level and access to tools, you may be able to repair the issue yourself by replacing the faulty sensor, repairing damaged wiring, or addressing connector issues.

5. Is it safe to continue driving with OBDII code B2355 in a GMC related to the Driver Seat Front Vertical Position Sensor Circuit?

- While it may be safe to drive, it is recommended to address the issue promptly to ensure the driver's seat functions correctly in case of an emergency.

6. How much does it typically cost to repair OBDII code B2355 in a GMC related to the Driver Seat Front Vertical Position Sensor Circuit?

- Repair costs can vary depending on the specific issue, but they may range from $100 to $300 for parts and labor if done by a professional mechanic.

7. Are there any preventative measures to avoid OBDII code B2355 in a GMC related to the Driver Seat Front Vertical Position Sensor Circuit?

- Preventative measures include regular inspection of the driver's seat components, avoiding putting excessive weight on the seat, and addressing any issues promptly to prevent further damage.

8. Can a reset or clearing of the OBDII code B2355 in a GMC related to the Driver Seat Front Vertical Position Sensor Circuit fix the problem?

- Clearing the code may temporarily remove the warning light, but it will not fix the underlying issue causing the fault code to appear. It is recommended to diagnose and repair the problem.

9. Are there any recalls or technical service bulletins related to OBDII code B2355 in a GMC related to the Driver Seat Front Vertical Position Sensor Circuit?

- It's advisable to check with a GMC dealership or visit the National Highway Traffic Safety Administration (NHTSA) website to see if there are any recalls or bulletins related to this specific issue.

10. How long does it typically take to repair OBDII code B2355 in a GMC related to the Driver Seat Front Vertical Position Sensor Circuit?

- The repair time can vary based on the exact cause of the issue and the availability of parts. In general, it may take a few hours to a full day to diagnose and fix the problem.