AutoCodes – Chevrolet – U182A Chevrolet

U182A Chevrolet Code - Hybrid Powertrain Control Module Lost Communication with Battery Energy Control Module on Powertrain Expansion CAN Bus Malfunction

Quick Answer

Devices connected to the powertrain high-speed General Motor Local Area Network (GMLAN) serial data circuits monitor for serial data communications during normal vehicle operation. Common causes include Faulty Starter/Generator Control Module, Starter/Generator Control Module harness is open or shorted, Starter/Generator 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: U182A Chevrolet indicates Hybrid Powertrain Control Module Lost Communication with Battery Energy Control Module on Powertrain Expansion CAN Bus Malfunction.
Common causes: Common causes include Faulty Starter/Generator Control Module, Starter/Generator Control Module harness is open or shorted, Starter/Generator 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.

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Code Popularity 3,222

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 Jul 24, 2023

Description
Possible Causes
How To Fix
Cost to Diagnose
FAQs
Comments
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Code U182A Chevrolet Description

Devices connected to the powertrain high-speed General Motor Local Area Network (GMLAN) serial data circuits monitor for serial data communications during normal vehicle operation. Operating information and commands are exchanged among the devices. The devices have prerecorded information about what messages are needed to be exchanged on the serial data circuits, for each virtual network. The messages are supervised and also, some periodic messages are used by the receiver device as an availability indication of the transmitter device. Each message contains the identification number of the transmitter device.
The Diagnostic Trouble Code (DTC) will be set when a supervised periodic message that includes the transmitter device availability has not been received.

OBDII Code U182A Chevrolet - Hybrid Powertrain Control Module Lost Communication with Battery Energy Control Module on Powertrain Expansion CAN Bus Malfunction - AutoCodes.com — U182A Chevrolet Code - Hybrid Powertrain Control Module Lost Communication with Battery Energy Control Module on Powertrain Expansion CAN Bus Malfunction

What does this mean?

What are the Possible Causes of the DTC U182A Chevrolet?

Faulty Starter/Generator Control Module
Starter/Generator Control Module harness is open or shorted
Starter/Generator Control Module circuit poor electrical connection
Faulty Battery Energy Control Module

How to Fix the DTC U182A 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 U182A 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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Get the U182A Chevrolet code diagnosed by a professional: Find a repair shop in your area

Information for Specific Chevrolet Models

U182A 2014 Chevrolet Silverado — Hybrid Powertrain Control Module Lost Communication with Battery Energy Control Module on Powertrain Expansion CAN Bus Malfunction
U182A 2015 Chevrolet Silverado — Hybrid Powertrain Control Module Lost Communication with Battery Energy Control Module on Powertrain Expansion CAN Bus Malfunction
U182A 2016 Chevrolet Silverado — Hybrid Powertrain Control Module Lost Communication with Battery Energy Control Module on Powertrain Expansion CAN Bus Malfunction
U182A 2017 Chevrolet Silverado — Hybrid Powertrain Control Module Lost Communication with Battery Energy Control Module on Powertrain Expansion CAN Bus Malfunction
U182A 2018 Chevrolet Silverado — Hybrid Powertrain Control Module Lost Communication with Battery Energy Control Module on Powertrain Expansion CAN Bus Malfunction

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 U182A Chevrolet Code

1. What are the common symptoms of OBDII code U182A in a Chevrolet vehicle?

The common symptoms include the check engine light illuminating, poor fuel efficiency, loss of power, and potential issues with the hybrid powertrain system.

2. What can cause the OBDII code U182A to trigger in a Chevrolet?

The code U182A typically triggers when there is a communication failure between the Hybrid Powertrain Control Module and the Battery Energy Control Module on the Powertrain Expansion CAN Bus.

3. How serious is the U182A code in a Chevrolet vehicle?

While the vehicle may still be driveable with the code U182A, it is important to address the issue promptly to prevent further damage to the hybrid powertrain system and ensure optimal performance.

4. What should I do if my Chevrolet shows the U182A code?

If your Chevrolet displays the U182A code, it is recommended to have the vehicle diagnosed by a professional technician to determine the exact cause of the communication failure and proceed with the necessary repairs.

5. Can I continue driving my Chevrolet with the U182A code present?

It is best to avoid driving the vehicle for an extended period with the U182A code active to prevent potential damage to the hybrid powertrain system. Seek professional assistance to resolve the issue.

6. How can I repair the U182A code in my Chevrolet?

Repairing the U182A code typically involves diagnosing the communication issue between the Hybrid Powertrain Control Module and Battery Energy Control Module, checking for wiring faults, and repairing or replacing any faulty components as needed.

7. Are there any DIY tips for troubleshooting the U182A code in a Chevrolet?

While basic checks like inspecting the wiring connections and ensuring they are secure can be done, diagnosing and repairing the U182A code often requires specialized diagnostic equipment and expertise best handled by a professional technician.

8. Is the U182A code specific to Chevrolet vehicles only?

The U182A code related to Hybrid Powertrain Control Module communication issues with the Battery Energy Control Module is specific to Chevrolet vehicles equipped with hybrid powertrain systems.

9. Can extreme weather conditions trigger the U182A code in a Chevrolet?

Extreme weather conditions may not directly trigger the U182A code, but they can exacerbate existing communication issues between the Hybrid Powertrain Control Module and the Battery Energy Control Module.

10. How much does it typically cost to repair the U182A code in a Chevrolet?

The cost of repairing the U182A code in a Chevrolet can vary depending on the exact cause of the communication failure, the extent of the repairs needed, and labor costs. It is advisable to consult a professional for an accurate estimate.