AutoCodes – GMC – U010F GMC

U010F GMC Code - Lost Communication With Air Conditioning Control Module

Quick Answer

Modules connected to the high speed General Motor Local Area Network (GMLAN) serial data circuits monitor for serial data communications during normal vehicle operation. Common causes include Faulty Air Conditioning Control Module, Air Conditioning Control Module harness is open or shorted, Air Conditioning 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: U010F GMC indicates Lost Communication With Air Conditioning Control Module.
Common causes: Common causes include Faulty Air Conditioning Control Module, Air Conditioning Control Module harness is open or shorted, Air Conditioning 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.

Save to My Repairs My Repairs

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

Code Popularity 415

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 Mar 30, 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 U010F GMC Description

Modules connected to the 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 modules. The modules 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 module as an availability indication of the transmitter module. The supervision time-out period is 250 ms. Each message contains the identification number of the transmitter module. The Diagnostic Trouble Code (DTC) sets when a periodic message from the Air Conditioning Control Module has not been received.

OBDII Code U010F GMC - Lost Communication With Air Conditioning Control Module - AutoCodes.com — U010F GMC Code - Lost Communication With Air Conditioning Control Module

What does this mean?

What are the Possible Causes of the DTC U010F GMC?

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

How to Fix the DTC U010F 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 U010F 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 U010F GMC code?

Need more information on how to fix the U010F GMC code? Get Access to Factory Service Manuals

Need Help with the Code?

Get the U010F GMC code diagnosed by a professional: Find a repair shop in your area

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 U010F GMC Code

1. What are the common symptoms of OBDII code U010F (Lost Communication With Air Conditioning Control Module)?

- Common symptoms include the air conditioning system not working properly, the AC not turning on, and the climate controls not responding.

2. What are the possible causes of OBDII code U010F in a GMC vehicle?

- Possible causes include a faulty air conditioning control module, wiring issues, a malfunctioning CAN bus communication system, or a problem with the power supply to the module.

3. How can I diagnose the cause of OBDII code U010F in my GMC vehicle?

- To diagnose the issue, you can use a scan tool to check for other related trouble codes, inspect the wiring connections to the air conditioning control module, and perform a thorough system check of the AC system.

4. What are some repair tips for addressing OBDII code U010F in a GMC vehicle?

- Repair tips include checking and repairing any damaged wiring, ensuring proper power supply to the control module, and replacing the faulty air conditioning control module if necessary.

5. Can I continue to drive my GMC vehicle with OBDII code U010F present?

- It is not recommended to drive the vehicle with this code present, as it may lead to further damage to the air conditioning system and potentially affect other vehicle functions.

6. Is it possible to reset OBDII code U010F in a GMC vehicle without fixing the underlying issue?

- While you can clear the code using a scan tool, it is important to address the root cause of the communication loss to prevent the code from reappearing.

7. How much does it typically cost to repair OBDII code U010F in a GMC vehicle?

- The cost of repair can vary depending on the specific issue causing the code, but it may involve replacing the air conditioning control module, which can range from $200 to $500 including parts and labor.

8. Can a DIY enthusiast fix OBDII code U010F in a GMC vehicle?

- Some aspects of diagnosing and repairing this code may be suitable for DIY enthusiasts, such as checking wiring connections and power supply. However, complex issues may require professional assistance.

9. Are there any preventive measures to avoid OBDII code U010F in a GMC vehicle?

- Regularly inspecting the air conditioning system, ensuring proper maintenance, and promptly addressing any related issues can help prevent the occurrence of this communication error.

10. Will fixing OBDII code U010F improve the overall performance of my GMC vehicle?

- Fixing this code will restore proper communication with the air conditioning control module, ensuring the AC system functions correctly and maintaining the overall performance and comfort of the vehicle.