The P0568: Cruise Control Set Signal Malfunction code indicates that the engine control module (ECM) has detected an issue with the “Set” signal of the cruise control system. This problem can prevent the system from setting or maintaining a selected speed.
P0568 – Quick Overview
| Code | Information |
|---|---|
| Meaning | P0568: Cruise Control Set Signal Malfunction |
| Is it serious? | No, but it will prevent the cruise control from functioning properly, reducing driving convenience. |
| Possible causes | – Faulty cruise control switch – Wiring issues – Faulty cruise control module |
| How to diagnose? | – Test the cruise control switch – Inspect wiring for faults – Check the cruise control module |
P0568 Meaning
The P0568: Cruise Control Set Signal Malfunction code is triggered when the ECM detects a fault in the “Set” signal of the cruise control system. This signal allows the system to capture and maintain the vehicle’s speed. If the “Set” signal malfunctions due to a faulty switch, wiring issue, or a defective cruise control module, the cruise control will not engage or hold the set speed.
Step-by-step diagnostic guide
| Action | Description | Tools Needed |
|---|---|---|
| Check for Other Codes | Use an OBD-II scanner to check for related codes that may provide additional context about the cruise control system issue. | OBD-II Scanner |
| Test the Cruise Control Switch | Use a multimeter to test the cruise control switch for proper function, ensuring that it sends the correct “Set” signal when pressed. | Multimeter |
| Inspect Wiring for Faults | Visually inspect the wiring and connectors leading to the cruise control switch and module for any signs of damage, loose connections, or corrosion. | Flashlight, Basic Tools |
| Check the Cruise Control Module | Test the cruise control module to verify that it correctly processes the “Set” signal. Replace the module if necessary. | Diagnostic Tool, Basic Tools |
| Clear the Code and Test Drive | After repairs, clear the code using an OBD-II scanner and test the cruise control system to ensure that the “Set” function works correctly. | OBD-II Scanner, Vehicle Manual |
| Recheck for Codes | Re-scan the vehicle after the test drive to ensure that the P0568 code hasn’t returned. | OBD-II Scanner |
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I test OBD-II scanners and make DIY Engine diagnostics guides to help you solve your car problems without having to depend on the mechanic. A lot of them will try to scam you or are just no help at all. About Juraj Lukacko