Cruise Control Vacuum Control Circuit Open
The P0582 code indicates that the Powertrain Control Module (PCM) has detected an open circuit in the cruise control vacuum control circuit. This circuit controls the vacuum actuator that adjusts throttle position to maintain set speed. An open circuit means there is a break in the electrical path, preventing proper vacuum regulation and disabling cruise control.
01. Most Common Causes
- Blown fuse for cruise control system
- Faulty cruise control vacuum solenoid
- Open or shorted wiring in the vacuum control circuit
- Corroded or loose electrical connector
02. Symptoms You Will Notice
- Cruise control inoperative
- Check Engine Light illuminated
- Cruise control light on dash may flash or stay off
03. Step-by-Step Diagnosis
Step 1: Use a scan tool to confirm P0582 and check for other codes.
Step 2: Inspect the cruise control fuse and replace if blown.
Step 3: Visually inspect wiring and connectors for damage, corrosion, or loose connections.
Step 4: Test the vacuum solenoid resistance with a multimeter; compare to specs.
Step 5: Check for vacuum leaks at the actuator and hoses.
04. Commonly Affected Makes
05. Frequently Asked Questions
Is it safe to drive with this code?▼
Yes, it is safe to drive, but cruise control will not work. The vehicle will operate normally otherwise.
How much does it cost to fix?▼
Typically $50-$150 for parts and labor, depending on the cause (fuse, wiring repair, or solenoid replacement).