AutoCodes – GMC – U182D 2015 GMC Sierra

U182D 2015 GMC Sierra 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 2015 GMC Sierra 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 151

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 2015 GMC Sierra 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 2015 GMC Sierra - Lost Communication with Hybrid/EV Powertrain Control Module 2 on Powertrain Expansion Communication Bus - AutoCodes.com — U182D 2015 GMC Sierra 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 2015 GMC Sierra?

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 2015 GMC Sierra?

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 2015 GMC Sierra 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.

Need more information about the U182D 2015 GMC Sierra code?

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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 U182D 2015 GMC Sierra Code

1. What are common symptoms of OBDII code U182D on a 2015 GMC Sierra?

- Common symptoms include the check engine light illuminating, loss of power, and potential drivability issues.

2. What does the OBDII code U182D "Lost Communication with Hybrid/EV Powertrain Control Module 2 on Powertrain Expansion Communication Bus" mean?

- This code indicates a communication problem between the vehicle's powertrain control module and the hybrid/EV powertrain control module 2 on the communication bus.

3. What are possible causes of OBDII code U182D on a 2015 GMC Sierra?

- Possible causes include damaged wiring or connectors, a faulty powertrain control module, issues with the hybrid/EV powertrain control module 2, or communication bus problems.

4. How can I diagnose the cause of OBDII code U182D on my 2015 GMC Sierra?

- Diagnosis typically involves checking the wiring and connectors for damage, verifying the power and ground connections, and using a diagnostic scanner to inspect communication between modules.

5. What are some repair tips for addressing OBDII code U182D on a 2015 GMC Sierra?

- Repair tips may include repairing or replacing damaged wiring, ensuring proper connections, resetting the fault code, and retesting the system to confirm the issue has been resolved.

6. Can I continue driving my 2015 GMC Sierra with OBDII code U182D present?

- It is generally not recommended to continue driving with this code present, as it can lead to potential drivability issues or further damage to the vehicle's systems.

7. Is OBDII code U182D on a 2015 GMC Sierra easy to fix without professional help?

- The complexity of fixing this code can vary depending on the underlying cause. Some simple issues like loose connections may be easy to address, while more complex problems may require professional diagnosis and repair.

8. How much does it typically cost to repair OBDII code U182D on a 2015 GMC Sierra?

- Repair costs can vary depending on the specific cause of the code and labor rates in your area. It is advisable to get a diagnostic assessment from a qualified mechanic to determine the exact cost.

9. Are there any recalls or technical service bulletins related to OBDII code U182D on a 2015 GMC Sierra?

- It is recommended to check with a GMC dealership or online databases for any relevant recalls or technical service bulletins related to this specific OBDII code and vehicle model.

10. Can OBDII code U182D on a 2015 GMC Sierra cause any long-term damage if left unresolved?

- Ignoring this code can potentially lead to further issues with the vehicle's powertrain systems, reduced fuel efficiency, and overall drivability problems. It is best to address the code promptly to prevent any long-term damage.