AutoCodes – Generic – U1519

U1519 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 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.

Save to My Repairs My Repairs

AI answers can be wrong. Verify repairs with testing. Open full chat

Code Popularity 3,480

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 02, 2020

Description
Possible Causes
How To Fix
Cost to Diagnose
FAQs
Comments
Add Comment

💬 Need more help? Ask Coddy for instant answers — it's free!

Code U1519 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 - Seat Memory Control Module Lost Communication With Mirror Control Module/Drive Mirror Control Module/Left Mirror Control Module On LIN Bus - AutoCodes.com — U1519 Code - Seat Memory Control Module Lost Communication With Mirror Control Module/Drive Mirror Control Module/Left Mirror Control Module On LIN Bus

What does this mean?

What are the Possible Causes of the DTC U1519?

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?

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 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 code?

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

Need Help with the Code?

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

Information for Specific Makes

U1519 Buick — Seat Memory Control Module Lost Communication With Mirror Control Module/Drive Mirror Control Module/Left Mirror Control Module On LIN Bus
U1519 Cadillac — Seat Memory Control Module Lost Communication With Mirror Control Module/Drive Mirror Control Module/Left Mirror Control Module On LIN Bus
U1519 Chevrolet — Seat Memory Control Module Lost Communication With Mirror Control Module/Drive Mirror Control Module/Left Mirror Control Module On LIN Bus
U1519 GMC — Seat Memory Control Module Lost Communication With Mirror Control Module/Drive Mirror Control Module/Left Mirror Control Module On LIN Bus

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 Code

1. What are the common symptoms of OBDII code U1519?

The common symptoms of code U1519 include issues with the seat memory function, faulty power mirrors, and loss of communication between the seat memory control module and mirror control module.

2. What are the possible causes of OBDII code U1519?

Possible causes of code U1519 include damaged wiring or connectors in the LIN bus network, a faulty seat memory control module, a malfunctioning mirror control module, or a software communication error.

3. How can I diagnose OBDII code U1519?

Diagnosing code U1519 involves using a diagnostic scanner to retrieve the trouble codes, checking the LIN bus network for any wiring issues, testing the seat memory control module and mirror control module for functionality, and verifying software communication between the modules.

4. Can OBDII code U1519 be repaired at home?

Repairing code U1519 may require advanced diagnostic equipment and expertise. While basic checks like inspecting wiring connections can be done at home, resolving complex issues with the control modules may require professional assistance.

5. Is it safe to continue driving with OBDII code U1519 present?

It is generally safe to drive with code U1519, but it is recommended to address the issue promptly to prevent any further malfunctions with the seat memory control module and mirror control module.

6. How much does it typically cost to repair OBDII code U1519?

The cost of repairing code U1519 can vary depending on the specific cause of the issue. It may involve replacing damaged wiring, repairing or replacing control modules, or addressing software communication errors, which can range from moderate to high costs.

7. Can a software update fix OBDII code U1519?

In some cases, a software update provided by the manufacturer can resolve communication errors causing code U1519. It is recommended to consult with a professional to determine if a software update is a viable solution.

8. Will disconnecting the battery reset OBDII code U1519?

Disconnecting the battery may temporarily clear the trouble code, but if the underlying issue causing code U1519 is not addressed, the code is likely to reappear once the vehicle is driven and the modules attempt to communicate again.

9. How long does it take to repair OBDII code U1519?

The repair time for code U1519 can vary depending on the complexity of the issue and the availability of parts. Simple fixes like reconnecting wiring may take a short time, while replacing control modules or addressing software issues could require more time.

10. Can extreme weather conditions trigger OBDII code U1519?

Extreme weather conditions may not directly trigger code U1519, but they can exacerbate existing issues with the LIN bus network or electronic modules, leading to communication errors and the appearance of the trouble code.