AutoCodes – Buick – U1528 Buick

U1528 Buick Code - Driver/Passenger Seat Memory Control Module Lost Communication With Driver/Passenger Seat Adjuster Switch On LIN Bus

Quick Answer

The Local Interconnect Network (LIN) Bus consists of a single wire with a transmission rate of 10.417 Kbit/s. Common causes include Faulty Driver/Passenger Seat Adjuster Switch, Driver/Passenger Seat Adjuster Switch harness is open or shorted, Driver/Passenger Seat Adjuster Switch 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: U1528 Buick indicates Driver/Passenger Seat Memory Control Module Lost Communication With Driver/Passenger Seat Adjuster Switch On LIN Bus.
Common causes: Common causes include Faulty Driver/Passenger Seat Adjuster Switch, Driver/Passenger Seat Adjuster Switch harness is open or shorted, Driver/Passenger Seat Adjuster Switch 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 512

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 Jun 03, 2020

Description
Possible Causes
How To Fix
Cost to Diagnose
FAQs
Comments
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Code U1528 Buick Description

The Local Interconnect Network (LIN) Bus consists of a single wire with a transmission rate of 10.417 Kbit/s. The serial data is transmitted over a LIN circuit between a master control module and other LIN devices within a particular subsystem. If serial data communication is lost between any of the LIN devices on the LIN bus network, the master control module will set a no communication code against the non-communicating LIN device. The Diagnostic Trouble Code (DTC) will set when a supervised periodic message to the Driver/Passenger Seat Memory Control Module from the Driver/Passenger Seat Adjuster Switch has not been received.

OBDII Code U1528 Buick - Driver/Passenger Seat Memory Control Module Lost Communication With Driver/Passenger Seat Adjuster Switch On LIN Bus - AutoCodes.com — U1528 Buick Code - Driver/Passenger Seat Memory Control Module Lost Communication With Driver/Passenger Seat Adjuster Switch On LIN Bus

What does this mean?

What are the Possible Causes of the DTC U1528 Buick?

Faulty Driver/Passenger Seat Adjuster Switch
Driver/Passenger Seat Adjuster Switch harness is open or shorted
Driver/Passenger Seat Adjuster Switch circuit poor electrical connection
Faulty Driver/Passenger Seat Memory Control Module

How to Fix the DTC U1528 Buick?

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 is the Cost to Diagnose the Code?

Labor: 1.0

To diagnose the U1528 Buick 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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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 U1528 Buick Code

1. What are the common symptoms of OBDII code U1528 in a Buick related to the Driver/Passenger Seat Memory Control Module?

- Common symptoms include inability to adjust the driver/passenger seats, loss of seat memory settings, and warning lights on the dashboard.

2. What are the possible causes of OBDII code U1528 in a Buick?

- Possible causes may include a faulty driver/passenger seat memory control module, a communication error with the seat adjuster switch, or issues with the LIN bus communication network.

3. How can I diagnose the cause of OBDII code U1528 in my Buick?

- Diagnosis involves checking the wiring connections between the control module and the seat adjuster switch, testing the LIN bus communication network, and using a diagnostic scan tool to retrieve specific fault codes.

4. Is it safe to drive my Buick with OBDII code U1528 present?

- It is generally safe to drive the vehicle with this code, but it is recommended to address the issue promptly to avoid potential inconvenience and discomfort caused by the seat adjustment malfunction.

5. How can I repair OBDII code U1528 in my Buick?

- Repair options may include repairing or replacing the driver/passenger seat memory control module, checking and repairing any damaged wiring, and ensuring proper communication between the control module and the seat adjuster switch.

6. Can I reset OBDII code U1528 in my Buick without fixing the underlying issue?

- Resetting the code without addressing the root cause will only temporarily remove the warning light. It is important to diagnose and fix the problem to prevent the code from reoccurring.

7. Are there any DIY tips for troubleshooting OBDII code U1528 in a Buick?

- DIY tips may include visually inspecting the wiring connections, ensuring the seat adjuster switch is functioning correctly, and checking for any loose connections in the LIN bus network.

8. Will fixing OBDII code U1528 require professional assistance?

- Depending on your automotive repair skills and tools available, fixing this code may require professional assistance to accurately diagnose and repair the underlying issue with the seat memory control module.

9. How much does it typically cost to repair OBDII code U1528 in a Buick?

- The cost of repair can vary depending on the specific cause of the code, parts needed for replacement, and labor costs. It is recommended to obtain a few quotes from reputable mechanics or dealerships.

10. Is OBDII code U1528 a common issue in Buick vehicles?

- While not extremely common, issues related to the driver/passenger seat memory control module and communication errors can occur in Buick vehicles, triggering the U1528 fault code.