P0584 Fault Code

Cruise Control Vacuum Control Circuit High

• What does that mean?
• Symptoms
• Causes
• Solutions

The P0584 fault code indicates that there is an issue with the cruise control vacuum control circuit, which is operating at a higher voltage or current than expected. This could impede the cruise control system's functionality, affecting driving comfort and safety.

What are the symptoms of the P0584 code?

Common symptoms that may accompany a P0584 code include:

• Cruise control not functioning correctly or disengaging unexpectedly.
• Inconsistent speed when cruise control is activated.
• Warning lights illuminating on the dashboard related to the cruise control system.
• Possible engine performance issues if the throttle is affected.

What causes the P0584 code?

Possible causes of this fault code include:

• Faulty vacuum lines or connections that are damaged or leaking.
• Malfunctioning vacuum actuator that controls the throttle.
• Short circuit or open circuit in the electrical wiring of the cruise control system.
• Defective cruise control module or electronic control unit (ECU).

How to fix P0584?

To address the P0584 fault code, consider the following steps:

• Inspect and replace any damaged or leaking vacuum lines and connections.
• Test the vacuum actuator for proper function and replace it if necessary.
• Check the electrical wiring for any shorts or breaks and repair as needed.
• If problems persist, consider testing or replacing the cruise control module or ECU.