AutoCodes – Chevrolet – U182D Chevrolet

U182D Chevrolet Code - Lost Communication with Hybrid/EV Powertrain Control Module 2 on Powertrain Expansion Communication Bus

Quick Answer

The serial data circuit is the means by which the devices in the vehicle communicate with each other. Common causes include Faulty Hybrid/EV Powertrain Control Module 2, Hybrid/EV Powertrain Control Module 2 harness is open or shorted, Hybrid/EV Powertrain Control Module 2 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: U182D Chevrolet indicates Lost Communication with Hybrid/EV Powertrain Control Module 2 on Powertrain Expansion Communication Bus.
Common causes: Common causes include Faulty Hybrid/EV Powertrain Control Module 2, Hybrid/EV Powertrain Control Module 2 harness is open or shorted, Hybrid/EV Powertrain Control Module 2 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 1,039

How popular is this code, among other codes? Low

Repair Importance Level

Urgent (Diagnose now) (3 / 3)

Repair Difficulty Level

Advanced (Pro) (3 / 3)

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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 U182D Chevrolet Description

The serial data circuit is the means by which the devices in the vehicle communicate with each other. Once the scan tool is connected to the serial data circuit through the Data Link Connector (DLC), the scan tool can be used to monitor each device for diagnostic purposes and to check for Diagnostic Trouble Codes (DTC). When the vehicle is ON, each device communicating on the serial data circuit sends a state of health message to ensure that the device is operating properly. When a device stops communicating on the serial data circuit, for example, if the device loses power or ground, the state of health message it normally sends on the serial data circuit disappears. Other devices on the serial data circuit, which expect to receive that state of health message, detect its absence; those devices in turn set a DTC associated with the loss of state of health of the non-communicating device. A loss of serial data communications DTC does not represent a failure of the devices that contain the stored DTC.

OBDII Code U182D Chevrolet - Lost Communication with Hybrid/EV Powertrain Control Module 2 on Powertrain Expansion Communication Bus - AutoCodes.com — U182D Chevrolet Code - Lost Communication with Hybrid/EV Powertrain Control Module 2 on Powertrain Expansion Communication Bus

What does this mean?

What are the Possible Causes of the DTC U182D Chevrolet?

Faulty Hybrid/EV Powertrain Control Module 2
Hybrid/EV Powertrain Control Module 2 harness is open or shorted
Hybrid/EV Powertrain Control Module 2 circuit poor electrical connection
Faulty Body Control Module (BCM)

How to Fix the DTC U182D 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 U182D 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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Information for Specific Chevrolet Models

U182D 2014 Chevrolet Silverado — Lost Communication with Hybrid/EV Powertrain Control Module 2 on Powertrain Expansion Communication Bus
U182D 2015 Chevrolet Silverado — Lost Communication with Hybrid/EV Powertrain Control Module 2 on Powertrain Expansion Communication Bus
U182D 2016 Chevrolet Silverado — Lost Communication with Hybrid/EV Powertrain Control Module 2 on Powertrain Expansion Communication Bus
U182D 2017 Chevrolet Silverado — Lost Communication with Hybrid/EV Powertrain Control Module 2 on Powertrain Expansion Communication Bus
U182D 2018 Chevrolet Silverado — Lost Communication with Hybrid/EV Powertrain Control Module 2 on Powertrain Expansion Communication 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 U182D Chevrolet Code

1. What are the common symptoms of OBDII code U182D in a Chevrolet related to lost communication with Hybrid/EV Powertrain Control Module 2?

- Common symptoms may include the hybrid or electric vehicle system malfunctioning, loss of power, warning lights on the dashboard, and difficulty starting the vehicle.

2. What are some possible causes of OBDII code U182D in a Chevrolet indicating lost communication with Hybrid/EV Powertrain Control Module 2?

- Possible causes include loose or damaged wiring, faulty powertrain control module, issues with the communication bus, or a malfunctioning Hybrid/EV Powertrain Control Module 2.

3. How can I diagnose OBDII code U182D in a Chevrolet related to lost communication with Hybrid/EV Powertrain Control Module 2?

- Diagnosing this code may require using a scan tool to retrieve the specific trouble codes, checking the wiring connections, inspecting the control modules, and testing the communication bus for issues.

4. Is it safe to continue driving with OBDII code U182D in a Chevrolet indicating lost communication with Hybrid/EV Powertrain Control Module 2?

- It is not recommended to continue driving the vehicle with this code present, as it can lead to further damage to the hybrid or electric powertrain system.

5. How can I repair OBDII code U182D in a Chevrolet related to lost communication with Hybrid/EV Powertrain Control Module 2?

- Repairing this code may involve repairing or replacing damaged wiring, ensuring proper connections, resetting the modules, or replacing the Hybrid/EV Powertrain Control Module 2 if necessary.

6. Can a DIY enthusiast fix OBDII code U182D in a Chevrolet indicating lost communication with Hybrid/EV Powertrain Control Module 2?

- While some basic troubleshooting steps can be performed by a DIY enthusiast, diagnosing and repairing this code may require advanced knowledge and specialized tools, so it is recommended to consult with a professional mechanic.

7. Are there any recalls or technical service bulletins related to OBDII code U182D in a Chevrolet and the communication issue with Hybrid/EV Powertrain Control Module 2?

- It is advisable to check with Chevrolet dealerships or online resources for any recalls or technical service bulletins related to this specific OBDII code and communication problem.

8. How much does it typically cost to repair OBDII code U182D in a Chevrolet due to lost communication with Hybrid/EV Powertrain Control Module 2?

- The cost of repairing this code can vary depending on the specific cause of the issue, parts needed, labor costs, and dealership or mechanic rates, so it is best to get a professional estimate.

9. Can OBDII code U182D in a Chevrolet be intermittent or permanent when indicating lost communication with Hybrid/EV Powertrain Control Module 2?

- This code can be intermittent, meaning it may come and go based on the communication issue's severity, or it can be a permanent fault that requires immediate attention.

10. Will resetting the OBDII code U182D in a Chevrolet related to lost communication with Hybrid/EV Powertrain Control Module 2 resolve the issue?

- Simply resetting the trouble code may temporarily clear the warning lights, but it will not fix the underlying problem causing the lost communication with the Hybrid/EV Powertrain Control Module 2.