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Engine-Codes – GMC – U023C GMC

U023C GMC Code - Lost Communication With Night Vision Camera Control Module

Quick Answer

The U023C diagnostic trouble code (DTC) for GMC vehicles indicates that there is a communication problem between the vehicle's main computer system and the Night Vision Camera Control Module. Common causes include Faulty Night Vision Camera Control Module, Wiring issues or loose connections between the main computer system and the control module, Software glitches or communication errors within the vehicle's network. 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
U023C GMC indicates Lost Communication With Night Vision Camera Control Module.
Common causes
Common causes include Faulty Night Vision Camera Control Module, Wiring issues or loose connections between the main computer system and the control module, Software glitches or communication errors within the vehicle's network.
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.
What is this?
Table of contents Created and updated by William Orellana on Sep 13, 2024
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Code U023C GMC Description

The U023C diagnostic trouble code (DTC) for GMC vehicles indicates that there is a communication problem between the vehicle's main computer system and the Night Vision Camera Control Module. The Night Vision Camera Control Module is responsible for controlling the night vision camera system in the vehicle, which helps improve visibility in low-light conditions. When communication is lost with this module, it can lead to issues with the night vision system not functioning properly.

OBDII Code U023C GMC - Lost Communication With Night Vision Camera Control Module
U023C GMC Code - Lost Communication With Night Vision Camera Control Module

Common Causes of U023C GMC

  1. Faulty Night Vision Camera Control Module.
  2. Wiring issues or loose connections between the main computer system and the control module.
  3. Software glitches or communication errors within the vehicle's network.
  4. Water damage or corrosion affecting the control module or wiring.
  5. Issues with the main computer system of the vehicle.

Symptoms of U023C GMC

  1. Night vision system not turning on or functioning erratically.
  2. Warning light on the dashboard related to the night vision system.
  3. Diminished visibility in low-light conditions.
  4. Error messages related to the night vision system on the vehicle's display.
  5. In some cases, the vehicle may go into a limp mode to prevent further damage.

How to Fix U023C GMC

  1. Begin by conducting a thorough inspection of the wiring and connections between the main computer system and the Night Vision Camera Control Module.
  2. Check for any signs of water damage or corrosion that may be affecting the control module.
  3. Use a diagnostic scanner to reset the communication between the main computer system and the control module.
  4. If the issue persists, consider replacing the Night Vision Camera Control Module with a new one.
  5. Finally, clear the DTC from the vehicle's system and test the night vision system to ensure proper functionality.

Cost to Fix U023C GMC

The cost of repairing a U023C DTC related to the Night Vision Camera Control Module can vary depending on the specific cause of the issue. In general, the cost of replacing the control module itself can range from $300 to $800, including parts and labor. Additional costs may be incurred if wiring repairs or software updates are necessary. It's important to note that labor rates at auto repair shops can vary, so it's advisable to check with local shops for a more accurate estimate based on your location and vehicle make and model.

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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 U023C GMC Code

1. What are the common symptoms of OBDII code U023C GMC?

The common symptoms of code U023C include loss of communication with the night vision camera control module, a malfunction indicator light (MIL) illuminating on the dashboard, and potential issues with the night vision system functionality.

2. What are the possible causes of OBDII code U023C GMC?

The possible causes of code U023C include faulty wiring or connectors in the night vision camera control module circuit, a defective night vision camera control module, software issues, or a malfunctioning power supply to the module.

3. How can I diagnose OBDII code U023C GMC?

To diagnose code U023C, a professional diagnostic scan tool is needed to retrieve the specific fault codes. A thorough inspection of the wiring, connectors, and components related to the night vision camera control module should also be conducted.

4. Can I still drive my vehicle with OBDII code U023C GMC present?

While it may be possible to drive the vehicle with the code present, it is recommended to address the issue promptly to prevent potential safety risks and further damage to the night vision system.

5. How do I repair OBDII code U023C GMC?

Repairing code U023C typically involves inspecting and repairing any damaged wiring or connectors in the night vision camera control module circuit, replacing a faulty night vision camera control module if necessary, and ensuring proper connection and power supply to the module.

6. Is it safe to reset the OBDII code U023C GMC without fixing the underlying issue?

Resetting the code without addressing the underlying issue may temporarily turn off the MIL, but the problem will likely persist and trigger the code again. It is recommended to diagnose and repair the root cause of the code.

7. Can a DIY enthusiast fix OBDII code U023C GMC at home?

While some basic troubleshooting steps can be performed at home, diagnosing and repairing code U023C may require specialized tools and expertise. It is advisable to seek professional help for a comprehensive assessment and repair.

8. How much does it cost to repair OBDII code U023C GMC?

The cost of repairing code U023C can vary depending on the underlying issue, such as replacing wiring, connectors, or the night vision camera control module. It is recommended to obtain a diagnosis from a qualified technician for an accurate estimate.

9. Will fixing OBDII code U023C GMC improve my vehicle's night vision system performance?

Addressing and repairing code U023C should restore proper communication with the night vision camera control module, potentially improving the performance and functionality of the night vision system in your vehicle.

10. How often does OBDII code U023C GMC occur in GMC vehicles?

While the occurrence of code U023C may vary, it is a relatively uncommon issue in GMC vehicles. However, timely diagnosis and repair are essential to maintain the proper functioning of the night vision system in affected vehicles.

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