AutoCodes – GMC – U2112 GMC

U2112 GMC Code - Lost Communication With Electronic Suspension Control Module

Quick Answer

Devices connected to the serial data circuits monitor for serial data communications during normal vehicle operation. Common causes include Faulty Electronic Suspension Control (ESC) Module, Electronic Suspension Control Module harness is open or shorted, Electronic Suspension 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: U2112 GMC indicates Lost Communication With Electronic Suspension Control Module.
Common causes: Common causes include Faulty Electronic Suspension Control (ESC) Module, Electronic Suspension Control Module harness is open or shorted, Electronic Suspension 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 580

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 16, 2020

Description
Possible Causes
How To Fix
Cost to Diagnose
FAQs
Comments
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Code U2112 GMC Description

Devices connected to the 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 code. The DTC will set when a supervised periodic message that includes the transmitter device availability has not been received.

OBDII Code U2112 GMC - Lost Communication With Electronic Suspension Control Module - AutoCodes.com — U2112 GMC Code - Lost Communication With Electronic Suspension Control Module

What does this mean?

What are the Possible Causes of the DTC U2112 GMC?

Faulty Electronic Suspension Control (ESC) Module
Electronic Suspension Control Module harness is open or shorted
Electronic Suspension Control Module circuit poor electrical connection

How to Fix the DTC U2112 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 U2112 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 U2112 GMC Code

1. What are the common symptoms of OBDII code U2112 GMC (Lost Communication With Electronic Suspension Control Module)?

- Common symptoms include a warning light on the dashboard, suspension issues such as a harsh ride or uneven ride height, and potential loss of electronic suspension control features.

2. What are the possible causes of U2112 GMC code?

- The code U2112 can be caused by issues such as a faulty electronic suspension control module, damaged wiring or connectors, software glitches, or communication network problems within the vehicle.

3. How can I diagnose the U2112 GMC code?

- Diagnosis typically involves using a professional OBDII scanner to retrieve the specific trouble code, checking for any related codes, inspecting the wiring and connectors for damage, and verifying the communication between the electronic suspension control module and the vehicle's computer.

4. Can I still drive my vehicle with the U2112 code present?

- It is not recommended to drive the vehicle with the U2112 code present, as it can lead to potential safety issues due to the loss of electronic suspension control functionality.

5. How can I repair the U2112 GMC code?

- Repairing the U2112 code involves addressing the root cause, which may include replacing the faulty electronic suspension control module, repairing damaged wiring or connectors, updating software if necessary, or addressing any communication network issues in the vehicle.

6. Is it possible to reset the U2112 code without fixing the underlying issue?

- While it is possible to clear the code temporarily using an OBDII scanner, the underlying issue causing the U2112 code will persist until it is properly diagnosed and repaired.

7. Are there any DIY fixes for the U2112 GMC code?

- DIY fixes for the U2112 code may be limited, as it typically requires specialized knowledge and tools to diagnose and repair issues related to the electronic suspension control module and communication network.

8. How much does it typically cost to repair the U2112 GMC code?

- Repair costs for the U2112 code can vary depending on the underlying issue, but it may involve parts replacement, labor costs, and potential diagnostic fees, which can range from a few hundred to over a thousand dollars.

9. Can a regular mechanic fix the U2112 code, or do I need to visit a dealership?

- A regular mechanic with experience in diagnosing and repairing electronic suspension systems may be able to address the U2112 code, but in some cases, specialized knowledge or dealership expertise may be required.

10. How can I prevent the U2112 code from recurring in the future?

- Regular maintenance, keeping the vehicle's electronic systems up to date, addressing any warning lights promptly, and ensuring proper care of the suspension components can help prevent the U2112 code from recurring in the future.