Cruise control is a valuable feature that enhances the driving experience by maintaining a constant speed without the need for constant pedal input. However, like any system in your vehicle, cruise control can encounter issues. One such problem is Diagnostic Trouble Code (DTC) P0568. In this comprehensive guide, we will delve into the meaning of P0568, the potential causes behind it, the symptoms it may exhibit, and the steps to diagnose and rectify this problem effectively.

1. What Does P0568 Code Mean?

DTC P0568 indicates a malfunction in the “Cruise Control Set” signal circuit. This code signifies a problem with the communication between the cruise control system and the vehicle’s control module when setting a specific speed.

2. What Are the Causes of DTC P0568?

Several factors can lead to the occurrence of DTC P0568:

• Faulty Cruise Control Set Switch: Malfunctions in the cruise control set switch can disrupt the “Cruise Control Set” signal.
• Wiring or Connection Issues: Damaged or corroded wiring and poor electrical connections can cause signal circuit malfunctions.
• Faulty Cruise Control Module: Problems with the cruise control module may prevent it from accurately sending the “Cruise Control Set” signal.

3. What Are the Symptoms of DTC P0568?

Identifying the symptoms associated with DTC P0568 is crucial for accurate diagnosis. Common signs include:

• Inoperative Cruise Control Set Function: The most noticeable symptom is the cruise control system not setting the desired speed as expected. When you attempt to use the set function, it may not respond.
• Illuminated Warning Light: In some instances, an indicator light on the dashboard may illuminate to indicate a problem with the cruise control system.

4. How to Diagnose DTC P0568?

To diagnose DTC P0568 effectively, follow these steps:

• Utilize an OBD-II scanner to retrieve the trouble code and confirm the presence of DTC P0568.
• Inspect the condition of the cruise control set switch. If it is malfunctioning, consider replacing it.
• Examine the wiring and connections associated with the “Cruise Control Set” signal circuit for any visible damage, loose connections, or corrosion.
• Test the cruise control module to ensure it is sending the correct signal to the vehicle’s control module when setting the desired speed.

5. How to Fix DTC P0568 Problem?

Once you have identified and diagnosed the issue causing the “Cruise Control Set” signal malfunction (DTC P0568), it’s essential to address it effectively. Here’s what to do:

• Replace the faulty cruise control set switch if it is found to be the cause of the problem.
• Repair or replace any damaged wiring, connectors, or loose connections associated with the “Cruise Control Set” signal circuit.
• If the issue lies with the cruise control module, consider replacing or repairing it.
• After making the necessary repairs, clear the trouble code using your OBD-II scanner and test the cruise control system to ensure it functions correctly.

Conclusion

DTC P0568, indicating a malfunction in the “Cruise Control Set” signal circuit, can disrupt the operation of your vehicle’s cruise control system. Understanding the meaning of this code, recognizing the symptoms, identifying potential causes, conducting systematic diagnosis, and applying effective solutions are crucial for restoring the functionality of your cruise control system and enhancing your driving experience.