AutoCodes – Buick – U1534 Buick

U1534 Buick Code - Body Control Module Lost Communication With Driver Window Motor 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 Window Motor, Driver Window Motor harness is open or shorted, Driver Window 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: U1534 Buick indicates Body Control Module Lost Communication With Driver Window Motor On LIN Bus.
Common causes: Common causes include Faulty Driver Window Motor, Driver Window Motor harness is open or shorted, Driver Window 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 2,795

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 U1534 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 Body Control Module (BCM) from the Driver Window Motor has not been received.

OBDII Code U1534 Buick - Body Control Module Lost Communication With Driver Window Motor On LIN Bus - AutoCodes.com — U1534 Buick Code - Body Control Module Lost Communication With Driver Window Motor On LIN Bus

What does this mean?

What are the Possible Causes of the DTC U1534 Buick?

Faulty Driver Window Motor
Driver Window Motor harness is open or shorted
Driver Window Motor circuit poor electrical connection
Faulty Body Control Module (BCM)

How to Fix the DTC U1534 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 U1534 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 U1534 Buick Code

1. What are the common symptoms of OBDII code U1534 in a Buick related to the Body Control Module losing communication with the driver window motor on the LIN bus?

The common symptoms include the driver window becoming unresponsive, failure of other window controls, and malfunctioning power window features.

2. What are the possible causes of OBDII code U1534 in a Buick?

Possible causes include a faulty body control module, damaged wiring or connectors in the LIN bus circuit, a malfunctioning driver window motor, or software issues.

3. How can I diagnose the issue causing OBDII code U1534 in my Buick?

Diagnose the issue by checking the wiring and connectors in the LIN bus circuit, testing the driver window motor, inspecting the body control module for faults, and using a diagnostic scanner to communicate with the system.

4. How can I repair OBDII code U1534 in a Buick related to the Body Control Module losing communication with the driver window motor on the LIN bus?

Repair options include repairing or replacing damaged wiring and connectors, replacing the driver window motor if faulty, reprogramming or replacing the body control module, and clearing the code with a diagnostic scanner.

5. Are there any DIY tips for troubleshooting OBDII code U1534 in a Buick?

DIY tips include checking fuses related to the power windows, inspecting the window switches for proper operation, and visually inspecting the wiring and connectors for any visible damage.

6. Can OBDII code U1534 in a Buick be a safety concern?

Yes, as the driver's ability to control the windows may be compromised, it can pose a safety risk in emergency situations where quick window operation is necessary.

7. Is it safe to continue driving with OBDII code U1534 present in a Buick?

It is not recommended to drive with this code present, as it can lead to further issues with window operation and potentially affect other systems controlled by the body control module.

8. How much does it typically cost to repair OBDII code U1534 in a Buick at a dealership or repair shop?

Repair costs can vary depending on the exact cause of the issue, but it may range from a few hundred to over a thousand dollars, including parts and labor.

9. Can resetting the system by disconnecting the battery fix OBDII code U1534 in a Buick?

While disconnecting the battery can sometimes reset the system and clear the code temporarily, it is not a guaranteed or permanent solution. It's best to diagnose and repair the root cause of the issue.

10. Is it possible for OBDII code U1534 in a Buick to reoccur after being repaired?

If the root cause of the issue is not properly addressed during the repair, the code can reoccur. It's important to ensure all potential causes are identified and fixed to prevent future occurrences.