AutoCodes – Chevrolet – U182E Chevrolet

U182E Chevrolet Code - Drive Motor Control Module 1 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: U182E Chevrolet indicates Drive Motor Control Module 1 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 858

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 Jun 07, 2020

Description
Possible Causes
How To Fix
Cost to Diagnose
FAQs
Comments
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Code U182E 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 Code (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 the health message, detect its absence; those devices in turn set a DTC associated with the loss of the 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. The DTC will set when a supervised periodic message that includes the transmitter device availability has not been received.

OBDII Code U182E Chevrolet - Drive Motor Control Module 1 Lost Communication With Hybrid/EV Powertrain Control Module 2 On Powertrain Expansion Communication Bus - AutoCodes.com — U182E Chevrolet Code - Drive Motor Control Module 1 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 U182E 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 U182E 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 U182E 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 U182E Chevrolet Code

1. What are the common symptoms of OBDII code U182E in a Chevrolet vehicle?

- Common symptoms include loss of power, engine stalling, poor fuel efficiency, and illumination of the check engine light.

2. What can cause the U182E code to trigger in a Chevrolet, indicating a lost communication between Drive Motor Control Module 1 and Hybrid/EV Powertrain Control Module 2?

- The code can be triggered by issues such as wiring faults, loose connections, module failures, or software glitches.

3. How serious is the U182E code in a Chevrolet and should it be addressed immediately?

- The code should be addressed promptly as it can affect the performance and drivability of the vehicle, particularly in hybrid or electric powertrains.

4. What are some possible DIY repair tips for resolving the U182E code in a Chevrolet?

- DIY repair tips may include checking and repairing any damaged wiring, ensuring all connections are secure, and performing a module reset or software update if necessary.

5. Is it safe to continue driving a Chevrolet with the U182E code illuminated?

- It is not recommended to continue driving the vehicle with the U182E code illuminated, as it can lead to further complications and potential damage to the powertrain components.

6. How can a mechanic diagnose the U182E code in a Chevrolet accurately?

- A mechanic can diagnose the U182E code using a diagnostic scan tool to retrieve the error codes, perform a thorough inspection of the wiring and connections, and conduct communication tests between modules.

7. Are there any recalls or service bulletins related to the U182E code in Chevrolet vehicles?

- It is advisable to check with a Chevrolet dealership or online resources for any recalls or service bulletins related to the U182E code to see if there are any known issues or fixes.

8. Can the U182E code be intermittent in a Chevrolet, coming and going without warning?

- Yes, the U182E code can be intermittent, meaning it may appear and disappear sporadically depending on the communication issues between the modules.

9. What is the typical cost range to repair the U182E code in a Chevrolet at a dealership or repair shop?

- The cost to repair the U182E code can vary depending on the specific issue, but it may range from $100 to $500 for diagnosis, parts, and labor at a dealership or repair shop.

10. How can preventive maintenance help prevent the U182E code from occurring in a Chevrolet?

- Regular maintenance, such as checking and maintaining wiring integrity, keeping connections clean and secure, and updating software when necessary, can help prevent the U182E code from occurring.