AutoCodes – Chevrolet – U1502 Chevrolet

U1502 Chevrolet Code - Local Interconnect Network Bus Failure

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 Module that is not communicating, Module harness is open or shorted, 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: U1502 Chevrolet indicates Local Interconnect Network Bus Failure.
Common causes: Common causes include Faulty Module that is not communicating, Module harness is open or shorted, 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.

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Code Popularity 6,736

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 May 31, 2020

Description
Possible Causes
How To Fix
Cost to Diagnose
FAQs
Comments
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Code U1502 Chevrolet 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 that includes the transmitter device availability has not been received.

OBDII Code U1502 Chevrolet - Local Interconnect Network Bus Failure - AutoCodes.com — U1502 Chevrolet Code - Local Interconnect Network Bus Failure

What does this mean?

What are the Possible Causes of the DTC U1502 Chevrolet?

Faulty Module that is not communicating
Module harness is open or shorted
Module circuit poor electrical connection

How to Fix the DTC U1502 Chevrolet?

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 U1502 Chevrolet 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 U1502 Chevrolet Code

1. What does the OBDII code U1502 for Chevrolet indicate?

- The U1502 code signifies a Local Interconnect Network Bus Failure in the Chevrolet vehicle's communication system.

2. What are the common symptoms of a U1502 code in a Chevrolet?

- Common symptoms include issues with the vehicle's network communication, such as intermittent or complete loss of communication with various control modules.

3. What are the potential causes of a U1502 code in a Chevrolet?

- Causes can range from damaged wiring or connectors in the communication network to issues with control modules or the body control module.

4. How can I diagnose a U1502 code in my Chevrolet?

- Diagnosing the U1502 code typically involves inspecting the wiring and connectors associated with the communication network, checking for loose connections, and using a diagnostic scan tool to identify specific faults.

5. Can a U1502 code be cleared/reset in a Chevrolet without repairs?

- Clearing the U1502 code without addressing the underlying issue may not solve the root problem. It is recommended to diagnose and repair the cause of the code to prevent it from reoccurring.

6. Is it safe to drive my Chevrolet with a U1502 code present?

- It is generally not recommended to drive the vehicle with a U1502 code, as it can affect communication between critical systems and lead to potential safety hazards or performance issues.

7. How much does it typically cost to repair a U1502 code in a Chevrolet?

- Repair costs for a U1502 code can vary depending on the cause of the issue, but it may involve expenses for parts replacement, wiring repairs, or control module reprogramming.

8. Can a DIY enthusiast fix a U1502 code in a Chevrolet?

- While some basic troubleshooting steps can be taken by DIY enthusiasts, diagnosing and repairing a U1502 code often requires specialized tools and expertise, making it a more suitable task for professional mechanics.

9. Are there any recalls or technical service bulletins related to the U1502 code in Chevrolet vehicles?

- Checking with a Chevrolet dealership or online databases for any existing recalls or technical service bulletins related to the U1502 code can provide valuable information on known issues and solutions.

10. How can I prevent a U1502 code from occurring in my Chevrolet in the future?

- Regular maintenance, including checking and maintaining the vehicle's wiring harnesses and connectors, can help prevent issues that lead to a U1502 code. Additionally, addressing any related trouble codes promptly can help avoid more significant problems.