P0568
UniversalCruise Control Set Signal Malfunction
Low SeverityThis code indicates a problem with the signal from the cruise control set switch to the vehicle's computer. When this malfunction occurs, the cruise control system will typically become inoperable, preventing the driver from engaging or maintaining a set speed.
⚠️ Before You Begin (Safety First)
Always ensure the vehicle is turned off and the battery is disconnected before performing any electrical diagnostic or repair work. Be cautious when working around airbags, as some cruise control components are located in the steering wheel.
Common Symptoms
- Check Engine Light illuminated
- Cruise control does not engage
- Cruise control does not maintain set speed
- Cruise control light on dashboard may not illuminate
Common Causes
- Faulty cruise control set switch
- Damaged or corroded wiring/connector to the cruise control switch
- Blown fuse for the cruise control system
- Faulty clock spring (if switch is on steering wheel)
- Problem with the Powertrain Control Module (PCM)
Frequently reported on: General/Universal
Diagnostic Steps
- Check all fuses related to the cruise control system and replace any blown fuses.
- Visually inspect the cruise control set switch for any physical damage or stuck buttons.
- Inspect the wiring harness and connectors leading to the cruise control switch for signs of damage, corrosion, or loose connections.
- Test the cruise control set switch's continuity with a multimeter (refer to service manual for specifications).
- If accessible and verifiable, replace the cruise control set switch.
👨🔧 When to Call a Professional
If basic troubleshooting, such as checking fuses and replacing the cruise control switch, does not resolve the issue, it is best to consult a professional technician. Complex wiring diagnostics or issues within the Powertrain Control Module (PCM) require specialized tools and expertise.
Commonly Asked Questions
Can I drive with code P0568?
Yes, you can safely drive your vehicle with this code, as it only affects the cruise control system and not the vehicle's essential operation.
How do I test the cruise control set switch?
You can test the switch using a multimeter to check for continuity as you press the 'SET' button, comparing readings to your vehicle's service manual specifications.
Is a faulty clock spring a common cause for P0568?
Yes, if your cruise control buttons are on the steering wheel, a faulty clock spring can interrupt the electrical signal from the set button, triggering this code.
Will clearing the code fix the problem?
Clearing the code is a diagnostic step. If the underlying issue (e.g., a faulty switch or wiring) is not resolved, the code will likely return.