AutoCodes – Generic – U2112

U2112 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 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 2,455

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

What does this mean?

What are the Possible Causes of the DTC U2112?

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?

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 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 U2112 code?

Need more information on how to fix the U2112 code? Get Access to Factory Service Manuals

Need Help with the Code?

Get the U2112 code diagnosed by a professional: Find a repair shop in your area

Information for Specific Makes

U2112 Buick — Lost Communication With Electronic Suspension Control Module
U2112 Cadillac — Lost Communication With Electronic Suspension Control Module
U2112 Chevrolet — Lost Communication With Electronic Suspension Control Module
U2112 GMC — Lost Communication With Electronic Suspension Control 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 U2112 Code

1. What are the common symptoms of OBDII code U2112, "Lost Communication With Electronic Suspension Control Module"?

- Common symptoms include a warning light on the dashboard, erratic suspension performance, and possible issues with ride comfort.

2. What are the main causes of OBDII code U2112?

- The main causes of this code are damaged wiring, loose connections, a malfunctioning suspension control module, or issues with the vehicle's computer system.

3. How serious is OBDII code U2112?

- While the code indicates a communication issue with the electronic suspension control module, it may not directly affect the drivability or safety of the vehicle. However, it is important to address the issue promptly to prevent further problems.

4. Can I continue driving my vehicle with OBDII code U2112?

- You can continue driving the vehicle with this code, but it is recommended to have it diagnosed and repaired as soon as possible to avoid potential suspension issues or other complications.

5. How can I diagnose OBDII code U2112?

- Diagnosis typically involves using a professional OBDII scanner to retrieve the code, checking the wiring and connections related to the electronic suspension control module, and performing further testing as needed.

6. Is it possible to repair OBDII code U2112 on my own?

- Depending on your automotive skills and access to tools, you may be able to address simple causes such as loose connections or damaged wiring. However, complex issues may require professional diagnosis and repair.

7. What should I do if I encounter OBDII code U2112 repeatedly?

- If the code reappears after clearing it, it is recommended to seek the assistance of a qualified mechanic to perform a thorough inspection and determine the root cause of the communication loss.

8. Are there any preventative measures to avoid OBDII code U2112?

- Regular vehicle maintenance, including checking and securing wiring connections, can help prevent communication issues with the electronic suspension control module that trigger this code.

9. Can OBDII code U2112 cause other problems in the vehicle?

- While the code itself relates to communication with the suspension control module, unresolved issues could potentially lead to suspension malfunctions or affect other systems that rely on proper communication signals.

10. How much can I expect to pay to repair OBDII code U2112?

- Repair costs for this code can vary widely depending on the underlying cause, the extent of the issue, and labor rates in your area. It is advisable to obtain multiple quotes from reputable repair shops for an accurate estimate.