AutoCodes – Chevrolet – U1862 Chevrolet

U1862 Chevrolet Code - Battery Energy Control Module Lost Communication With Serial Data Gateway Module

Quick Answer

Modules connected to the Controller Area Network (CAN) serial data circuits monitor for serial data communications during normal vehicle operation. Common causes include Faulty Serial Data Gateway Module, Serial Data Gateway Module harness is open or shorted, Serial Data Gateway 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: U1862 Chevrolet indicates Battery Energy Control Module Lost Communication With Serial Data Gateway Module.
Common causes: Common causes include Faulty Serial Data Gateway Module, Serial Data Gateway Module harness is open or shorted, Serial Data Gateway 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 1,420

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 08, 2020

Description
Possible Causes
How To Fix
Cost to Diagnose
FAQs
Comments
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Code U1862 Chevrolet Description

Modules connected to the Controller Area Network (CAN) serial data circuits monitor for serial data communications during normal vehicle operation. Operating information and commands are exchanged among the modules. The modules have prerecorded information about what messages are needed to be exchanged on the serial data circuits. The messages are supervised and also, some periodic messages are used by the receiver module as an availability indication of the transmitter module. Each message contains the identification number of the transmitter module. A module with a CAN serial data circuits malfunction or which loses power during the current ignition cycle will have a Loss of Communication Diagnostic Trouble Code (DTC) set by other modules that depend on information from that failed module. If any of the CAN circuit are shorted to battery voltage, ground, or between them no communication is possible on the CAN serial data bus, a Diagnostic Trouble Code will set.

OBDII Code U1862 Chevrolet - Battery Energy Control Module Lost Communication With Serial Data Gateway Module - AutoCodes.com — U1862 Chevrolet Code - Battery Energy Control Module Lost Communication With Serial Data Gateway Module

What does this mean?

What are the Possible Causes of the DTC U1862 Chevrolet?

Faulty Serial Data Gateway Module
Serial Data Gateway Module harness is open or shorted
Serial Data Gateway Module circuit poor electrical connection

How to Fix the DTC U1862 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 U1862 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 U1862 Chevrolet Code

1. What are common symptoms of OBDII code U1862 in a Chevrolet?

- Common symptoms include issues with battery energy control, communication errors, and potential issues with the serial data gateway module.

2. What can cause the U1862 code to trigger in a Chevrolet?

- The U1862 code may trigger due to a loss of communication between the battery energy control module and the serial data gateway module, which can be caused by wiring issues, faulty modules, or connection problems.

3. How can I diagnose the U1862 code in my Chevrolet?

- Diagnosing the U1862 code involves checking the wiring connections between the battery energy control module and the serial data gateway module, testing the modules for faults, and verifying proper communication signals.

4. Can I drive my Chevrolet with the U1862 code present?

- It is not recommended to drive your Chevrolet with the U1862 code present, as it can affect the proper functioning of the battery energy control system and potentially lead to other issues.

5. How can I repair the U1862 code in my Chevrolet?

- Repairing the U1862 code may involve fixing wiring issues, replacing faulty modules, ensuring proper connections, and clearing the code with a diagnostic tool.

6. Is it safe to clear the U1862 code using a diagnostic tool?

- It is safe to clear the U1862 code using a diagnostic tool after addressing the underlying issue causing the code. Clearing the code without fixing the problem may result in it reoccurring.

7. What are some tips for preventing the U1862 code in a Chevrolet?

- Regularly inspecting and maintaining the wiring connections, keeping modules clean and secure, and addressing any communication issues promptly can help prevent the U1862 code from appearing in your Chevrolet.

8. Can a DIY enthusiast fix the U1862 code issue in a Chevrolet?

- Depending on the skill level and experience of the DIY enthusiast, fixing the U1862 code issue may be possible with the right tools, knowledge, and guidance. However, complex electrical issues may require professional assistance.

9. How long does it typically take to repair the U1862 code in a Chevrolet?

- The time required to repair the U1862 code can vary based on the underlying cause and the complexity of the repair. It may take anywhere from a few hours to a full day to diagnose and fix the issue.

10. Are there any recalls or technical service bulletins related to the U1862 code in Chevrolet vehicles?

- It is recommended to check with Chevrolet dealerships or online resources for any recalls or technical service bulletins related to the U1862 code to see if there are known issues or solutions provided by the manufacturer.