AutoCodes – Generic – U1513

U1513 Code - Headlamp Control Module/Headlamp Leveling Control Module Lost Communication With Left Headlamp 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 Left Headlamp, Left Headlamp harness is open or shorted, Left Headlamp 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: U1513 indicates Headlamp Control Module/Headlamp Leveling Control Module Lost Communication With Left Headlamp On LIN Bus.
Common causes: Common causes include Faulty Left Headlamp, Left Headlamp harness is open or shorted, Left Headlamp 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 2,335

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
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Code U1513 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 Headlamp Control Module/Headlamp Leveling Control Module from Left Headlamp has not been received.

OBDII Code U1513 - Headlamp Control Module/Headlamp Leveling Control Module Lost Communication With Left Headlamp On LIN Bus - AutoCodes.com — U1513 Code - Headlamp Control Module/Headlamp Leveling Control Module Lost Communication With Left Headlamp On LIN Bus

What does this mean?

What are the Possible Causes of the DTC U1513?

Faulty Left Headlamp
Left Headlamp harness is open or shorted
Left Headlamp circuit poor electrical connection
Faulty Headlamp Control Module/Headlamp Leveling Control Module

How to Fix the DTC U1513?

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 U1513 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 U1513 code?

Need more information on how to fix the U1513 code? Get Access to Factory Service Manuals

Need Help with the Code?

Get the U1513 code diagnosed by a professional: Find a repair shop in your area

Information for Specific Makes

U1513 Buick — Headlamp Control Module/Headlamp Leveling Control Module Lost Communication With Left Headlamp On LIN Bus
U1513 Cadillac — Headlamp Control Module/Headlamp Leveling Control Module Lost Communication With Left Headlamp On LIN Bus
U1513 Chevrolet — Headlamp Control Module/Headlamp Leveling Control Module Lost Communication With Left Headlamp On LIN Bus
U1513 GMC — Headlamp Control Module/Headlamp Leveling Control Module Lost Communication With Left Headlamp 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 U1513 Code

1. What are the common symptoms of OBDII code U1513?

- Common symptoms include the left headlamp not functioning properly, erratic headlamp leveling, and dashboard warning lights related to headlamp control system.

2. What can cause the OBDII code U1513 to be triggered?

- The code may be triggered by a malfunction in the headlamp control module, a wiring issue in the LIN bus network, or a communication breakdown between modules.

3. How can I diagnose the OBDII code U1513?

- Diagnosis involves checking the left headlamp functionality, inspecting the wiring and connectors in the headlamp control system, and using a diagnostic scan tool to communicate with the modules.

4. Can a blown fuse cause the OBDII code U1513?

- Yes, a blown fuse in the headlamp control circuit can lead to a loss of communication between the modules and trigger the U1513 code.

5. Is it safe to drive with the OBDII code U1513 active?

- It is generally safe to drive with this code, but it is recommended to address the issue promptly to ensure proper headlamp operation and vehicle safety.

6. How can I repair the OBDII code U1513?

- Repair options include checking and repairing any damaged wiring, replacing the headlamp control module if necessary, and clearing the code with a diagnostic tool.

7. Can a DIY enthusiast fix the OBDII code U1513 at home?

- DIY enthusiasts with automotive repair knowledge and the right tools can attempt to diagnose and fix the U1513 code, but seeking professional help is recommended for complex issues.

8. Will resetting the fault codes make the OBDII code U1513 disappear permanently?

- Resetting the fault codes may temporarily clear the U1513 code, but if the underlying issue causing the code is not fixed, it is likely to reappear.

9. How do I prevent the OBDII code U1513 from recurring?

- Regularly inspecting the headlamp control system, ensuring proper maintenance of the vehicle's electrical components, and addressing any issues promptly can help prevent the U1513 code from recurring.

10. Can extreme weather conditions affect the occurrence of OBDII code U1513?

- Extreme weather conditions, such as heavy rain or extreme heat, can potentially cause electrical issues that may lead to the U1513 code triggering.