AutoCodes – Cadillac – U2111 Cadillac

U2111 Cadillac Code - Lost Communication With Steering Control System

Quick Answer

Devices connected to the serial data circuits monitor for serial data communications during normal vehicle operation. Common causes include Faulty Steering Control System Module, Steering Control System Module harness is open or shorted, Steering Control System 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: U2111 Cadillac indicates Lost Communication With Steering Control System.
Common causes: Common causes include Faulty Steering Control System Module, Steering Control System Module harness is open or shorted, Steering Control System 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 571

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 U2111 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 U2111 Cadillac - Lost Communication With Steering Control System - AutoCodes.com — U2111 Cadillac Code - Lost Communication With Steering Control System

What does this mean?

What are the Possible Causes of the DTC U2111 Cadillac?

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

How to Fix the DTC U2111 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 U2111 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 U2111 Cadillac Code

1. What are common symptoms of the U2111 OBDII code in a Cadillac related to lost communication with the steering control system?

- Common symptoms include loss of power steering assistance, illuminated warning lights on the dashboard, and erratic steering behavior.

2. What are some potential causes of the U2111 OBDII code in a Cadillac?

- Possible causes include a faulty steering control module, damaged wiring or connectors, software issues, or a communication network malfunction.

3. How can I diagnose the U2111 OBDII code in my Cadillac?

- Diagnosis typically involves using a professional OBDII scanner to retrieve the code, checking for any related codes, and performing a thorough inspection of the steering control system components.

4. Can I continue driving my Cadillac with the U2111 OBDII code present?

- It is not recommended to drive your vehicle with the U2111 code, as it can affect the steering system's functionality and compromise safety.

5. How can I repair the U2111 OBDII code in my Cadillac?

- Repair options may include replacing the steering control module, repairing damaged wiring or connectors, updating software, or addressing any communication network issues.

6. Will resetting the OBDII code make it go away permanently?

- Resetting the code may temporarily clear the warning lights, but if the underlying issue causing the U2111 code is not addressed, it is likely to reoccur.

7. Is the U2111 OBDII code specific to Cadillac vehicles?

- The U2111 code can be specific to Cadillac vehicles, as it relates to communication issues with the steering control system in certain models.

8. Can a DIY enthusiast fix the U2111 OBDII code issue in a Cadillac?

- While some basic troubleshooting steps can be performed by DIY enthusiasts, diagnosing and repairing the U2111 code may require specialized tools and expertise best handled by a professional mechanic.

9. Are there any recalls or technical service bulletins related to the U2111 OBDII code in Cadillac vehicles?

- It is advisable to check with Cadillac dealerships or online resources for any relevant recalls or technical service bulletins related to the U2111 code in your specific Cadillac model.

10. How can I prevent the U2111 OBDII code from occurring in my Cadillac in the future?

- Regular maintenance, including checking the steering system components, keeping wiring connections secure, and updating software as recommended by the manufacturer, can help prevent the U2111 code from occurring.