AutoCodes – Generic – U182F

U182F 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 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.

Save to My Repairs My Repairs

AI answers can be wrong. Verify repairs with testing. Open full chat

Code Popularity 513

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 Jun 07, 2020

Description
Possible Causes
How To Fix
Cost to Diagnose
FAQs
Comments
Add Comment

💬 Need more help? Ask Coddy for instant answers — it's free!

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

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?

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 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 U182F code?

Need more information on how to fix the U182F code? Get Access to Factory Service Manuals

Need Help with the Code?

Get the U182F code diagnosed by a professional: Find a repair shop in your area

Information for Specific Makes

U182F Buick — Drive Motor Control Module 2 Lost Communication With Hybrid/EV Powertrain Control Module 2 On Powertrain Expansion Communication Bus
U182F Cadillac — Drive Motor Control Module 2 Lost Communication With Hybrid/EV Powertrain Control Module 2 On Powertrain Expansion Communication Bus
U182F Chevrolet — Drive Motor Control Module 2 Lost Communication With Hybrid/EV Powertrain Control Module 2 On Powertrain Expansion Communication Bus
U182F GMC — Drive Motor Control Module 2 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 U182F Code

1. What are common symptoms of OBDII code U182F?

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

2. What does OBDII code U182F indicate?

- Code U182F indicates that there is a communication problem between the Drive Motor Control Module 2 and the Hybrid/EV Powertrain Control Module 2 on the Powertrain Expansion Communication Bus.

3. What are possible causes of OBDII code U182F?

- Possible causes include wiring issues, faulty control modules, software glitches, poor connections, or a malfunctioning Powertrain Expansion Communication Bus.

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

- Diagnosing the cause of this code may require a thorough inspection of the communication system, checking for loose connections, testing the control modules, and using a diagnostic scan tool to retrieve additional fault codes.

5. Can I continue driving with OBDII code U182F?

- While the vehicle may still be operable with this code, it is recommended to address the issue promptly to prevent further damage and ensure optimal performance.

6. How can I repair OBDII code U182F?

- Repairing this code may involve fixing wiring issues, replacing faulty control modules, updating software, ensuring proper connections, or addressing any problems with the Powertrain Expansion Communication Bus.

7. Is it possible to reset OBDII code U182F without repairs?

- Resetting the code without addressing the underlying issue may temporarily clear the check engine light, but the problem will likely reoccur if the root cause is not fixed.

8. Are there any known recalls related to OBDII code U182F?

- It is advisable to check with the vehicle manufacturer or authorized dealerships for any recalls or technical service bulletins related to this specific OBDII code.

9. Can a DIY enthusiast fix OBDII code U182F?

- Depending on the underlying cause, some DIY enthusiasts with proper tools and knowledge may be able to address simple wiring issues or connections. However, more complex problems may require professional diagnosis and repair.

10. How long does it typically take to repair OBDII code U182F?

- The time to repair this code can vary depending on the cause and complexity of the issue. It could range from a quick fix to a more involved repair that may take several hours or even days.