AutoCodes – GMC – B1825 2018 GMC Sierra

B1825 2018 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 2018 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 163

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 2018 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 2018 GMC Sierra - Driver Seat Recline Position Sensor Circuit - AutoCodes.com — B1825 2018 GMC Sierra Code - Driver Seat Recline Position Sensor Circuit

What does this mean?

What are the Possible Causes of the DTC B1825 2018 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 2018 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 2018 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 2018 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 2018 GMC Sierra Code

1. What are the common symptoms of an OBDII code B1825 in a 2018 GMC Sierra related to the Driver Seat Recline Position Sensor Circuit?

The common symptoms include issues with adjusting the recline position of the driver's seat, erratic seat movements, or a non-functional recline feature.

2. What are the possible causes of the OBDII code B1825 in a 2018 GMC Sierra?

The code B1825 typically indicates a malfunction in the driver seat recline position sensor circuit, which can be caused by wiring issues, a faulty sensor, or a problem with the seat control module.

3. How can I diagnose the OBDII code B1825 in my 2018 GMC Sierra if I experience seat adjustment issues?

You can start by checking the wiring connections related to the driver seat recline position sensor, inspecting the sensor for any damage, and using a diagnostic scan tool to identify the specific cause of the issue.

4. Is it safe to continue driving my 2018 GMC Sierra with an active B1825 fault code?

While the vehicle may still be operable, it is recommended to address the issue promptly to ensure the proper functioning of the driver's seat recline feature and to prevent further damage to the seat control system.

5. Can I repair the B1825 OBDII code in my 2018 GMC Sierra myself, or should I seek professional assistance?

Depending on your experience with automotive repairs and diagnostic tools, you may be able to address the issue yourself by following the manufacturer's repair guidelines. However, seeking professional assistance from a certified mechanic is advisable for a thorough diagnosis and proper repair.

6. Are there any temporary fixes or workarounds for the B1825 code in a 2018 GMC Sierra?

Temporary fixes are not recommended for OBDII codes like B1825, as they indicate a malfunction that requires proper diagnosis and repair to ensure the safe operation of the vehicle.

7. How much does it typically cost to repair the B1825 code related to the Driver Seat Recline Position Sensor Circuit in a 2018 GMC Sierra?

The cost of repairing the B1825 code can vary depending on the underlying cause of the issue, the extent of the damage, and whether you choose to address it yourself or seek professional help. It's best to obtain quotes from mechanics or repair shops for an accurate estimate.

8. Can a faulty driver seat recline position sensor cause other issues in my 2018 GMC Sierra?

While the primary symptom of a faulty sensor is related to the driver's seat recline function, it's essential to address the issue promptly to prevent any potential electrical problems or safety concerns associated with the malfunctioning sensor.

9. Will resetting the OBDII system clear the B1825 fault code in my 2018 GMC Sierra?

Resetting the OBDII system may temporarily clear the fault code, but if the underlying issue causing the B1825 code is not addressed, the code is likely to reappear once the problem resurfaces. It's crucial to diagnose and repair the root cause of the code for a permanent solution.

10. How long does it typically take to repair the B1825 OBDII code related to the Driver Seat Recline Position Sensor Circuit in a 2018 GMC Sierra?

The repair time can vary depending on the complexity of the issue, the availability of replacement parts, and whether you choose to perform the repair yourself or have it done by a professional. Simple repairs may take a few hours, while more involved fixes could require a day or more.