AutoCodes – GMC – B2365 GMC

B2365 GMC Code - Driver Seat Rear 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 Rear Vertical Motor, Driver Seat Rear Vertical Motor harness is open or shorted, Driver Seat Rear 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: B2365 GMC indicates Driver Seat Rear Vertical Position Sensor Circuit.
Common causes: Common causes include Faulty Driver Seat Rear Vertical Motor, Driver Seat Rear Vertical Motor harness is open or shorted, Driver Seat Rear 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 4,004

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 B2365 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 Rear Vertical Position Sensor Circuit.

OBDII Code B2365 GMC - Driver Seat Rear Vertical Position Sensor Circuit - AutoCodes.com — B2365 GMC Code - Driver Seat Rear Vertical Position Sensor Circuit

What does this mean?

What are the Possible Causes of the DTC B2365 GMC?

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

How to Fix the DTC B2365 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

B2365:01 Driver Seat Rear Vertical Position Sensor Circuit Short to Battery
B2365:02 Driver Seat Rear Vertical Position Sensor Circuit Short to Ground
B2365:06 Driver Seat Rear Vertical Position Sensor Circuit Low Voltage/Open

What is the Cost to Diagnose the Code?

Labor: 1.0

To diagnose the B2365 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.

Need more information about the B2365 GMC code?

Need more information on how to fix the B2365 GMC code? Get Access to Factory Service Manuals

Need Help with the Code?

Get the B2365 GMC code diagnosed by a professional: Find a repair shop in your area

Information for Specific GMC Models

B2365 2014 GMC Sierra — Driver Seat Rear Vertical Position Sensor Circuit
B2365 2015 GMC Sierra — Driver Seat Rear Vertical Position Sensor Circuit
B2365 2016 GMC Sierra — Driver Seat Rear Vertical Position Sensor Circuit
B2365 2017 GMC Sierra — Driver Seat Rear Vertical Position Sensor Circuit
B2365 2018 GMC Sierra — Driver Seat Rear 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 B2365 GMC Code

1. What does the OBDII code B2365 on a GMC vehicle mean?

The code B2365 indicates an issue with the Driver Seat Rear Vertical Position Sensor Circuit, which monitors the seat's vertical position for proper adjustment and functionality.

2. What are the common symptoms of the B2365 code on a GMC?

Symptoms may include improper seat movement, inability to adjust the seat vertically, or error messages related to seat adjustments on the dashboard.

3. What causes the B2365 code to appear?

Common causes include a faulty vertical position sensor, damaged wiring or connectors, or issues with the seat adjustment motor.

4. Can I still drive my GMC with the B2365 code active?

Yes, you can drive the vehicle, but the seat adjustment may not function correctly, which could affect comfort or driving ergonomics.

5. How can I diagnose the B2365 code on my GMC?

Start by visually inspecting the seat adjustment wiring and connectors for damage, then test the vertical position sensor and seat adjustment motor for proper operation.

6. What is the most common fix for the B2365 code?

Replacing the faulty driver seat rear vertical position sensor or repairing damaged wiring and connectors often resolves the issue.

7. How much does it cost to fix the B2365 code on a GMC vehicle?

Repair costs vary depending on the issue but typically range from $100 to $300 for parts and labor.

8. Can I reset the B2365 code without fixing the issue?

You can clear the code temporarily using an OBDII scanner, but it will likely return unless the underlying problem is addressed.

9. Does the B2365 code affect other seat adjustment functions?

It primarily affects the vertical adjustment of the driver seatâ€™s rear section but may indicate broader electrical problems if other seat functions are also impaired.

10. Do I need professional help to fix the B2365 code?

If youâ€™re comfortable working with automotive wiring and sensors, you may be able to fix it yourself. Otherwise, a professional mechanic is recommended for accurate diagnosis and repair.