AutoCodes – Cadillac – U0233 Cadillac

U0233 Cadillac Code - Lost Communication With Right Side Object Detection 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 Right Side Object Detection Control Module, Right Side Object Detection Control Module harness is open or shorted, Right Side Object Detection 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: U0233 Cadillac indicates Lost Communication With Right Side Object Detection Control Module.
Common causes: Common causes include Faulty Right Side Object Detection Control Module, Right Side Object Detection Control Module harness is open or shorted, Right Side Object Detection 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 2,282

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 Apr 05, 2020

Description
Possible Causes
How To Fix
Cost to Diagnose
FAQs
Comments
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Code U0233 Cadillac 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 Right Side Object Detection Control Module has not been received.

OBDII Code U0233 Cadillac - Lost Communication With Right Side Object Detection Control Module - AutoCodes.com — U0233 Cadillac Code - Lost Communication With Right Side Object Detection Control Module

What does this mean?

What are the Possible Causes of the DTC U0233 Cadillac?

Faulty Right Side Object Detection Control Module
Right Side Object Detection Control Module harness is open or shorted
Right Side Object Detection Control Module circuit poor electrical connection

How to Fix the DTC U0233 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 U0233 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 U0233 Cadillac Code

1. What are the common symptoms of OBDII code U0233 in a Cadillac related to the Right Side Object Detection Control Module?

- Common symptoms include malfunctioning or disabled right-side parking assist sensors, warning lights on the dashboard, and audible alerts not working.

2. What are the possible causes of the U0233 code indicating a lost communication with the Right Side Object Detection Control Module in a Cadillac?

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

3. How can I diagnose the U0233 code in my Cadillac indicating a communication issue with the Right Side Object Detection Control Module?

- Diagnose by checking the wiring and connectors for damage, testing the control module for functionality, ensuring the software is up to date, and verifying the communication network integrity.

4. Can I still drive my Cadillac with the U0233 code indicating a problem with the Right Side Object Detection Control Module?

- It is generally safe to drive the vehicle with this code, but be aware that the right-side parking assist features may not function correctly until the issue is resolved.

5. How can I repair the U0233 code related to the Right Side Object Detection Control Module in my Cadillac?

- Repair options include repairing or replacing damaged wiring or connectors, replacing the faulty control module, updating software as needed, and addressing any communication network issues.

6. Are there any DIY tips for troubleshooting the U0233 code in a Cadillac with regards to the Right Side Object Detection Control Module?

- DIY tips include visually inspecting wiring and connectors, resetting the system by disconnecting the battery for a few minutes, and checking for any loose connections.

7. Is it necessary to visit a dealership or auto repair shop to fix the U0233 code related to the Right Side Object Detection Control Module in a Cadillac?

- While visiting a professional is recommended for accurate diagnosis and repair, some simple checks and fixes can be done at home if you have the necessary tools and knowledge.

8. How much does it typically cost to repair the U0233 code indicating a communication problem with the Right Side Object Detection Control Module in a Cadillac?

- Costs can vary depending on the exact cause of the issue, but expect to pay for diagnostic fees, parts replacement, and labor, which can range from a few hundred to a few thousand dollars.

9. Will resetting the OBDII system clear the U0233 code related to the Right Side Object Detection Control Module in a Cadillac?

- Resetting the system may temporarily clear the code, but if the underlying issue causing the communication problem persists, the code is likely to return.

10. Is the U0233 code indicating a lost communication with the Right Side Object Detection Control Module a common issue in Cadillacs?

- While not extremely common, issues with communication modules can occur in various vehicle systems, including object detection modules in Cadillacs.