AutoCodes – GMC – U010E GMC

U010E GMC Code - Lost Communication With Reductant Sensor Module

Quick Answer

Devices connected to the Powertrain High-Speed General Motor Local Area Network (GMLAN) serial data circuits monitor for serial data communications during normal vehicle operation. Common causes include Faulty Reductant Control Module, Reductant Control Module harness is open or shorted, Reductant Control Module 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: U010E GMC indicates Lost Communication With Reductant Sensor Module.
Common causes: Common causes include Faulty Reductant Control Module, Reductant Control Module harness is open or shorted, Reductant Control Module 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 2,766

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 Oct 18, 2022

Description
Possible Causes
How To Fix
Cost to Diagnose
FAQs
Comments
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Code U010E GMC Description

Devices connected to the Powertrain High-Speed General Motor Local Area Network (GMLAN) serial data circuits monitor for serial data communications during normal vehicle operation. Operating information and commands are exchanged among the devices. The devices have prerecorded information about what messages are needed to be exchanged on the serial data circuits, for each virtual network. The messages are supervised and also, some periodic messages are used by the receiver device as an availability indication of the transmitter device. Each message contains the identification number of the transmitter device. A loss of serial data communications Diagnostic Trouble Code (DTC) does not represent a failure of the devices that contain the stored DTC. The DTC will be set when a supervised periodic message that includes the transmitter device availability has not been received.

OBDII Code U010E GMC - Lost Communication With Reductant Sensor Module - AutoCodes.com — U010E GMC Code - Lost Communication With Reductant Sensor Module

What does this mean?

What are the Possible Causes of the DTC U010E GMC?

Faulty Reductant Control Module
Reductant Control Module harness is open or shorted
Reductant Control Module circuit poor electrical connection

How to Fix the DTC U010E 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 U010E 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.

Need more information about the U010E GMC code?

Need more information on how to fix the U010E GMC code? Get Access to Factory Service Manuals

Need Help with the Code?

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Information for Specific GMC Models

U010E 2014 GMC Sierra — Lost Communication With Reductant Sensor Module
U010E 2015 GMC Sierra — Lost Communication With Reductant Sensor Module
U010E 2016 GMC Sierra — Lost Communication With Reductant Sensor Module
U010E 2017 GMC Sierra — Lost Communication With Reductant Sensor Module
U010E 2018 GMC Sierra — Lost Communication With Reductant Sensor Module

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 U010E GMC Code

1. What are the common symptoms of OBDII code U010E GMC (Lost Communication With Reductant Sensor Module)?

- Common symptoms include the malfunction indicator light (MIL) illuminating, reduced engine performance, and potential issues with the vehicle's emissions system.

2. What are the possible causes of OBDII code U010E GMC?

- The code U010E GMC can be triggered by issues such as a faulty reductant sensor module, damaged wiring or connectors, software glitches, or communication network problems.

3. How can I diagnose the cause of OBDII code U010E GMC?

- Diagnosing the cause of code U010E involves using a diagnostic scanner to retrieve the code, checking the reductant sensor module and its connections, inspecting the wiring harness for damage, and verifying the communication network's integrity.

4. Is it safe to continue driving with OBDII code U010E GMC active?

- It is generally not recommended to drive with an active U010E code, as it can affect the vehicle's performance and emissions. It's best to address the issue promptly to prevent potential further damage.

5. Can I repair OBDII code U010E GMC myself?

- Depending on your skill level and access to tools, you may be able to address the U010E code yourself by checking and repairing wiring connections, replacing the reductant sensor module if necessary, or resetting the code to see if it returns.

6. How much does it cost to repair OBDII code U010E GMC at a repair shop?

- Repair costs for U010E can vary based on the specific cause of the issue, labor rates, and parts involved. It's recommended to obtain quotes from different repair shops to compare prices.

7. Will resetting the OBDII code U010E GMC make it go away permanently?

- Resetting the code may temporarily clear it, but if the underlying issue causing the code is not addressed, it is likely to reappear. It's important to diagnose and fix the root cause of the problem.

8. Can extreme weather conditions trigger OBDII code U010E GMC?

- Extreme weather conditions can potentially affect the electrical connections or components related to the reductant sensor module, leading to the triggering of code U010E. Inspecting these components for damage is crucial.

9. How long does it typically take to repair OBDII code U010E GMC?

- The repair time for U010E can vary depending on the complexity of the issue and the availability of parts. Simple fixes like reseating connectors may take less time, while more involved repairs could take longer.

10. Are there any recalls or technical service bulletins related to OBDII code U010E GMC?

- It's advisable to check with a GMC dealership or online resources to see if there are any recalls or technical service bulletins related to code U010E for your specific vehicle model.