AutoCodes – GMC – U1534 GMC

U1534 GMC 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 GMC 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 1,724

How popular is this code, among other codes? Low

Repair Importance Level

Urgent (Diagnose now) (3 / 3)

Repair Difficulty Level

Advanced (Pro) (3 / 3)

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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 GMC 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 GMC - Body Control Module Lost Communication With Driver Window Motor On LIN Bus - AutoCodes.com — U1534 GMC 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 GMC?

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 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 is the Cost to Diagnose the Code?

Labor: 1.0

To diagnose the U1534 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.

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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 GMC Code

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

- Common symptoms include the driver window not operating properly or intermittently, loss of control over the window functions, and potential issues with other LIN bus-connected components.

2. What are some likely causes of OBDII code U1534 in a GMC indicating a communication problem between the Body Control Module and the driver window motor on the LIN bus?

- Possible causes include a faulty driver window motor, a malfunctioning Body Control Module, damaged wiring or connectors in the LIN bus circuit, or software communication errors within the vehicle's system.

3. How can I diagnose the source of the communication issue between the Body Control Module and the driver window motor triggering OBDII code U1534 in a GMC?

- Diagnose by checking the wiring and connectors for damage, testing the driver window motor for proper operation, scanning the vehicle's computer system for additional error codes, and performing a LIN bus communication test.

4. Are there any quick repair tips for addressing OBDII code U1534 in a GMC related to the Body Control Module losing communication with the driver window motor on the LIN bus?

- Quick repair tips include checking and repairing any damaged wiring or connectors, ensuring the driver window motor is functioning correctly, and resetting the Body Control Module to clear the code.

5. Can a DIY enthusiast fix OBDII code U1534 in a GMC caused by the Body Control Module's lost communication with the driver window motor on the LIN bus?

- While some basic checks and repairs can be done by a DIY enthusiast, diagnosing and repairing complex communication issues might require professional diagnostic tools and expertise to ensure an accurate fix.

6. What are the potential risks of ignoring OBDII code U1534 in a GMC associated with the Body Control Module's communication loss with the driver window motor on the LIN bus?

- Ignoring the code can lead to continued issues with the driver window's operation, potential malfunctions in other LIN bus-connected components, and overall inconvenience and safety concerns while operating the vehicle.

7. How much does it typically cost to repair OBDII code U1534 in a GMC caused by the Body Control Module's communication problem with the driver window motor on the LIN bus?

- Repair costs can vary depending on the underlying issue, but they may range from a few hundred to over a thousand dollars, including parts and labor expenses for diagnosis, repairs, and potential component replacements.

8. Will resetting the OBDII code U1534 in a GMC resolve the communication problem between the Body Control Module and the driver window motor on the LIN bus?

- Resetting the code may temporarily clear the error, but it is important to diagnose and address the root cause of the communication issue to prevent the code from reoccurring and ensure proper functionality of the window system.

9. Is it safe to continue driving a GMC with OBDII code U1534 triggered by the Body Control Module's lost communication with the driver window motor on the LIN bus?

- While the vehicle may still be operable with this code, it is recommended to address the communication problem promptly to avoid potential issues with the driver window operation and other LIN bus-connected components that could affect safety and convenience while driving.

10. How long does it typically take to repair OBDII code U1534 in a GMC related to the Body Control Module's communication loss with the driver window motor on the LIN bus?

- Repair times can vary based on the complexity of the issue, availability of parts, and the technician's workload. In general, it may take a few hours to a full day to diagnose and repair the communication problem effectively.