Easy one-page printout for the garage or repair shop
This summary uses the existing diagnostic information shown in full below.
This code means there's a problem with the car's cruise control system. It's like when you set your car to keep a steady speed, but something is wrong with the part that controls it, so it can't work right.
The P0584 code indicates that the cruise control system's vacuum control circuit is experiencing higher than normal voltage, which can affect its operation.
The cruise control system uses a vacuum control circuit to maintain a set speed. When the Engine Control Module (ECM) detects a high voltage condition in this circuit, it triggers the P0584 code. This could be due to electrical issues such as a short circuit or a faulty component within the system.
• Cruise control not engaging
• Cruise control disengages unexpectedly
• Check Engine Light illuminated
• Faulty cruise control vacuum solenoid
• Short circuit in the wiring
• Defective ECM
ECM: Engine Control Module, the computer that manages engine functions.
Vacuum Solenoid: A device that uses vacuum pressure to control a mechanical function in the vehicle.
• Use an OBD-II scanner to confirm the code.
• Inspect the wiring and connectors for damage or corrosion.
• Test the cruise control vacuum solenoid for proper operation.
• Repair or replace damaged wiring or connectors.
• Replace the faulty cruise control vacuum solenoid.
• Reprogram or replace the ECM if necessary.
• OBD-II scanner
• Multimeter
• Vacuum pump
$100 - $300
Moderate
• Ford F-150
• Chevrolet Silverado
• Toyota Camry
• Regularly inspect and maintain the cruise control system.
• Avoid excessive use of cruise control in hilly areas.
• Ensure all electrical connections are secure and clean.
Sensor Issue
• Avoid using cruise control until the issue is fixed.
• Consult a professional mechanic for diagnosis and repair.
Check your vehicle's warranty; some components may be covered under the powertrain or emissions warranty.
This code is not very common but has been reported in vehicles with aging cruise control systems, especially in models over 10 years old.
Moderate – The vehicle can be driven, but cruise control functionality will be impaired.
Operating a vehicle with malfunctioning cruise control can lead to unexpected speed changes, which may be unsafe.
• Vehicle must be in a safe location for testing.
• Ensure the vehicle is stationary and the engine is off before inspecting components.
The cruise control vacuum solenoid is typically located near the engine compartment, often mounted on or near the firewall.
Q: Can I still drive my car with this code?
A: Yes, but the cruise control may not work properly.
Q: Will fixing this issue improve my car's performance?
A: It will restore proper cruise control function but won't affect overall engine performance.
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