AutoCodesGMC – U1519 GMC

U1519 GMC Code - Seat Memory Control Module Lost Communication With Mirror Control Module/Drive Mirror Control Module/Left Mirror Control Module 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 Mirror Control Module/Drive Mirror Control Module/Left Mirror Control Module, Mirror Control Module/Drive Mirror Control Module/Left Mirror Control Module harness is open or shorted, Mirror Control Module/Drive Mirror Control Module/Left Mirror Control Module 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
U1519 GMC indicates Seat Memory Control Module Lost Communication With Mirror Control Module/Drive Mirror Control Module/Left Mirror Control Module On LIN Bus.
Common causes
Common causes include Faulty Mirror Control Module/Drive Mirror Control Module/Left Mirror Control Module, Mirror Control Module/Drive Mirror Control Module/Left Mirror Control Module harness is open or shorted, Mirror Control Module/Drive Mirror Control Module/Left Mirror Control Module 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.
AI answers can be wrong. Verify repairs with testing. Open full chat
Code Popularity 1,172
How popular is this code, among other codes? Low
Table of contents Created and updated by William Orellana on Jun 03, 2020
💬 Need more help? Ask Coddy for instant answers — it's free!

Code U1519 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 Seat Memory Control Module from the Mirror Control Module/Drive Mirror Control Module/Left Mirror Control Module has not been received.
OBDII Code U1519 GMC - Seat Memory Control Module Lost Communication With Mirror Control Module/Drive Mirror Control Module/Left Mirror Control Module On LIN Bus - AutoCodes.com
U1519 GMC Code - Seat Memory Control Module Lost Communication With Mirror Control Module/Drive Mirror Control Module/Left Mirror Control Module On LIN Bus

What are the Possible Causes of the DTC U1519 GMC?

  • Faulty Mirror Control Module/Drive Mirror Control Module/Left Mirror Control Module
  • Mirror Control Module/Drive Mirror Control Module/Left Mirror Control Module harness is open or shorted
  • Mirror Control Module/Drive Mirror Control Module/Left Mirror Control Module circuit poor electrical connection
  • Faulty Seat Memory Control Module

How to Fix the DTC U1519 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 U1519 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.

Need more information about the U1519 GMC code?

Need more information on how to fix the U1519 GMC code? Get Access to Factory Service Manuals

Need Help with the Code?

Get the U1519 GMC code diagnosed by a professional: Find a repair shop in your area

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 U1519 GMC Code

What does the OBDII code U1519 indicate in a GMC vehicle?

The OBDII code U1519 indicates that the seat memory control module has lost communication with the mirror control module on the LIN bus, which can affect the functionality of the seat and mirror adjustments.

What are the common symptoms of the U1519 code?

Common symptoms include the inability to adjust the mirrors, seat memory settings not functioning correctly, and warning lights related to the seat and mirror systems on the dashboard.

What could cause the U1519 code to trigger?

Causes may include a faulty seat memory control module, a malfunctioning mirror control module, damaged wiring or connectors in the LIN bus, or issues with the vehicle's body control module.

Can I drive my vehicle safely with the U1519 code?

Yes, you can drive your vehicle, but you may experience issues with the mirror and seat adjustments, which could affect comfort and visibility. It’s advisable to address the code to restore full functionality.

How can I diagnose the problem associated with the U1519 code?

Start by using an OBDII scanner to confirm the code and check for any related codes. Inspect the wiring and connectors for damage, and test the continuity of the LIN bus. Additionally, consider checking the function of the seat memory and mirror control modules.

What are some common repair tips for resolving the U1519 code?

Common repairs include inspecting and repairing any damaged wiring or connectors, replacing the faulty seat memory or mirror control module, and reprogramming or resetting the modules as needed.

Can the U1519 code be cleared without fixing the issue?

Yes, the code can be cleared with an OBDII scanner, but it will likely reappear if the underlying issue is not resolved. It is recommended to address the root cause to prevent recurrence.

Should I take my vehicle to a dealership for U1519 code repairs?

While dealerships have specialized knowledge and tools for diagnosing and repairing these issues, a qualified independent mechanic with experience in automotive electronics can also effectively troubleshoot and resolve the problem.

Are there any preventive measures to avoid the U1519 code?

To prevent the U1519 code, ensure regular maintenance of electrical systems, check for corrosion or damage in connectors, and avoid overloading the electrical system by adding aftermarket components improperly.

Discuss the causes and fixes for U1519 GMC OBDII Code

Code U1519 GMC comments

No comments found for this page.

AutoCodes App

Fix Your Car Smarter

Try the New AutoCodes App!

Get complete OBDII diagnostics, repair solutions, and cost estimates, plus AI chat support on demand.

AutoCodes App on Google Play