AutoCodes – Cadillac – U2112 Cadillac

U2112 Cadillac 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 Cadillac 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 640

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

What does this mean?

What are the Possible Causes of the DTC U2112 Cadillac?

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 Cadillac?

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 Cadillac 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 Cadillac Code

1. What are the common symptoms of OBDII code U2112 in a Cadillac related to lost communication with the Electronic Suspension Control Module?

- The common symptoms include a illuminated warning light on the dashboard, suspension issues such as uneven ride height, and a noticeable decrease in ride quality.

2. What are the possible causes of the U2112 code in a Cadillac indicating lost communication with the Electronic Suspension Control Module?

- The code U2112 can be triggered by issues such as a faulty suspension control module, damaged wiring or connectors, or a malfunctioning CAN bus communication network.

3. How can I diagnose the OBDII code U2112 in my Cadillac for lost communication with the Electronic Suspension Control Module?

- Diagnosis typically involves using a diagnostic scanner to retrieve the specific error codes, testing the communication lines for continuity, and inspecting the suspension control module for any signs of damage.

4. Are there any DIY repair tips for resolving the U2112 code in a Cadillac due to lost communication with the Electronic Suspension Control Module?

- DIY repair tips may include checking and repairing any damaged wiring or connectors, resetting the system by disconnecting the battery, or reprogramming the suspension control module if necessary.

5. Is it safe to continue driving my Cadillac with the U2112 code indicating lost communication with the Electronic Suspension Control Module?

- It is not recommended to continue driving the vehicle with the U2112 code present, as it can lead to potential safety hazards and further damage to the suspension system.

6. Can the U2112 code in a Cadillac be cleared/reset without fixing the underlying issue of lost communication with the Electronic Suspension Control Module?

- Clearing the code without addressing the root cause may temporarily turn off the warning light, but the issue will likely reoccur until the communication problem is resolved.

7. How much does it typically cost to repair the U2112 code related to lost communication with the Electronic Suspension Control Module in a Cadillac?

- The cost of repair can vary depending on the specific issue, but it may range from a few hundred to over a thousand dollars, including parts and labor.

8. Will fixing the U2112 code in a Cadillac require a visit to a dealership or can it be done by an independent mechanic?

- The repair for the U2112 code can typically be performed by an independent mechanic with the necessary diagnostic tools and expertise in Cadillac vehicles.

9. Are there any preventive measures that can help avoid the U2112 code related to lost communication with the Electronic Suspension Control Module in a Cadillac?

- Regularly inspecting the suspension system, ensuring proper maintenance of the vehicle's electrical components, and addressing any warning lights promptly can help prevent issues leading to the U2112 code.