AutoCodes – GMC – B1825 2017 GMC Sierra

B1825 2017 GMC Sierra Code - Driver Seat Recline 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 Recline Motor, Driver Seat Recline Motor harness is open or shorted, Driver Seat Recline 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: B1825 2017 GMC Sierra indicates Driver Seat Recline Position Sensor Circuit.
Common causes: Common causes include Faulty Driver Seat Recline Motor, Driver Seat Recline Motor harness is open or shorted, Driver Seat Recline 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 186

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 B1825 2017 GMC Sierra 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 Recline Position Sensor Circuit.

OBDII Code B1825 2017 GMC Sierra - Driver Seat Recline Position Sensor Circuit - AutoCodes.com — B1825 2017 GMC Sierra Code - Driver Seat Recline Position Sensor Circuit

What does this mean?

What are the Possible Causes of the DTC B1825 2017 GMC Sierra?

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

How to Fix the DTC B1825 2017 GMC Sierra?

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

B1825:01 Driver Seat Recline Position Sensor Circuit Short to Battery
B1825:02 Driver Seat Recline Position Sensor Circuit Short to Ground
B1825:06 Driver Seat Recline Position Sensor Circuit Low Voltage/Open

What is the Cost to Diagnose the Code?

Labor: 1.0

To diagnose the B1825 2017 GMC Sierra 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 B1825 2017 GMC Sierra code?

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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 B1825 2017 GMC Sierra Code

1. What does the OBDII code B1825 mean on a 2017 GMC Sierra?

B1825 indicates an issue with the Driver Seat Recline Position Sensor Circuit, which monitors the position of the driver's seat backrest.

2. What are common symptoms of the B1825 code?

Symptoms may include the power seat recline function not working, erratic seat movement, or no noticeable changes in seat adjustments despite using the controls.

3. What causes the B1825 code to appear?

Common causes include a faulty seat recline position sensor, damaged wiring or connectors, or an issue with the vehicleâ€™s Body Control Module (BCM).

4. Can the B1825 code affect seat safety features?

Yes, this code can potentially affect seat-related safety systems, like memory seat functions or airbag deployment calibration, as the position sensor data is critical.

5. How can I diagnose the B1825 code?

Start by inspecting the seat recline position sensor, wiring, and connectors for damage or loose connections. Use a scan tool to check for related codes and test the sensor's output.

6. How do I fix the B1825 code on my 2017 GMC Sierra?

Repairs may include replacing the seat recline position sensor, repairing or replacing damaged wiring, or resetting the Body Control Module (BCM) if necessary.

7. Is the B1825 code a serious issue?

While it may not immediately affect drivability, it can compromise comfort, convenience, and safety features, so it should be addressed promptly.

8. Can I drive with the B1825 code active?

Yes, you can still drive, but you may experience limited seat functionality and potential safety concerns if the issue affects other systems.

9. How much does it cost to repair the B1825 code?

Repair costs can range from $100 to $300, depending on whether the sensor, wiring, or BCM needs to be repaired or replaced.

10. Can I reset the B1825 code without fixing the issue?

Clearing the code without addressing the underlying problem will likely result in the code returning. Proper diagnosis and repair are necessary to resolve it.