The P0584: Cruise Control Vacuum Control Circuit High refers to an issue in the cruise control system where the vacuum control circuit is detecting a higher-than-expected voltage. This may result from a faulty vacuum control circuit, excessive voltage, or wiring problems, leading to cruise control malfunction.
P0584 – Quick Overview
| Code | Information |
|---|---|
| Meaning | P0584: Cruise Control Vacuum Control Circuit High |
| Is it serious? | No, but it can prevent the cruise control from working properly. |
| Possible causes | – Faulty vacuum control circuit – High voltage in circuit – Wiring issue |
| How to diagnose? | – Test vacuum control circuit for voltage – Inspect wiring and connectors – Test cruise control module |
P0584 Meaning
The P0584 code indicates that the cruise control system has detected higher-than-normal voltage in the vacuum control circuit. This could be due to a fault in the vacuum control system, excessive voltage, or wiring issues. The issue may cause the cruise control system to operate incorrectly or not function at all.
Step-by-step diagnostic guide
| Action | Description | Tools Needed |
|---|---|---|
| Check for Other Codes | Use an OBD-II scanner to check for any additional codes related to the cruise control system. | OBD-II Scanner |
| Test the Vacuum Control Circuit | Use a multimeter to measure the voltage in the vacuum control circuit to ensure it is within the correct range. | Multimeter |
| Inspect Wiring and Connectors | Inspect the wiring and connectors for damage, loose connections, or corrosion in the vacuum control circuit. | Flashlight, Multimeter |
| Test the Cruise Control Module | Test the cruise control module to ensure it is handling the input signals from the vacuum control circuit properly. | Diagnostic Tool, Multimeter |
| Clear the Code and Test | After repairs, clear the code using an OBD-II scanner and test the cruise control system to ensure the problem has been resolved. | OBD-II Scanner, Vehicle Manual |
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