AutoCodes – GMC – U182F GMC

U182F GMC Code - Drive Motor Control Module 2 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: U182F GMC indicates Drive Motor Control Module 2 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 543

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 U182F GMC 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 U182F GMC - Drive Motor Control Module 2 Lost Communication With Hybrid/EV Powertrain Control Module 2 On Powertrain Expansion Communication Bus - AutoCodes.com — U182F GMC Code - Drive Motor Control Module 2 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 U182F GMC?

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 U182F GMC?

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 U182F GMC 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 U182F GMC Code

1. What are common symptoms of OBDII code U182F GMC?

- Common symptoms include loss of communication between the Drive Motor Control Module 2 and the Hybrid/EV Powertrain Control Module 2, leading to potential issues with the hybrid or electric powertrain system.

2. What can cause OBDII code U182F GMC to trigger?

- This code is typically triggered when there is a communication breakdown between the Drive Motor Control Module 2 and the Hybrid/EV Powertrain Control Module 2 on the Powertrain Expansion Communication Bus.

3. How can I diagnose the cause of OBDII code U182F GMC?

- Diagnosis usually involves checking the wiring and connections between the Drive Motor Control Module 2 and the Hybrid/EV Powertrain Control Module 2, as well as inspecting for any potential damage or corrosion.

4. What are the repair options for OBDII code U182F GMC?

- Repair options may include repairing or replacing damaged wiring, ensuring proper connections, and resetting the fault codes using a diagnostic scanner.

5. Can I drive my vehicle with OBDII code U182F GMC?

- It is not recommended to drive the vehicle with this code present, as it can affect the performance and safety of the hybrid or electric powertrain system.

6. How serious is OBDII code U182F GMC?

- This code should be addressed promptly to prevent further issues with the communication between the Drive Motor Control Module 2 and the Hybrid/EV Powertrain Control Module 2.

7. Will resetting the fault codes fix OBDII code U182F GMC?

- Resetting the fault codes may temporarily clear the warning light, but the underlying issue causing the code will need to be diagnosed and repaired to prevent it from reoccurring.

8. Is OBDII code U182F GMC a common problem in GMC vehicles?

- While not extremely common, this code can occur in GMC vehicles equipped with hybrid or electric powertrain systems.

9. Can a DIY enthusiast fix OBDII code U182F GMC?

- Depending on their skill level and access to diagnostic tools, a DIY enthusiast may be able to diagnose and repair this code, but it is recommended to consult a professional mechanic for proper diagnosis and repair.

10. How much does it cost to repair OBDII code U182F GMC at a mechanic?

- The cost of repairing this code can vary depending on the extent of the issue, but it may involve labor costs for diagnosis and repair, as well as potential replacement of components. It is advisable to get a quote from a mechanic for an accurate estimate.