P0582
UniversalThe Powertrain Control Module (PCM) detects an open circuit within the cruise control vacuum control circuit.
Low SeverityThis code indicates an electrical open circuit in the vacuum control system for your vehicle's cruise control. The primary impact is that the cruise control system will not function, but it does not affect the drivability or safety of the vehicle.
⚠️ Before You Begin (Safety First)
Always ensure the vehicle is parked on a level surface with the parking brake engaged before performing any inspections. If working near the engine, allow it to cool to prevent burns. Disconnect the battery's negative terminal before working on electrical components to avoid accidental shorts or shocks.
Common Symptoms
- Cruise control does not engage
- Check Engine Light illuminated
Common Causes
- Faulty cruise control vacuum control solenoid
- Open or short in the wiring to the cruise control vacuum control circuit
- Loose or corroded electrical connections
- Blown fuse related to the cruise control system
- Faulty Powertrain Control Module (PCM)
Frequently reported on: General/Universal
Diagnostic Steps
- Visually inspect the wiring and connectors leading to the cruise control vacuum control solenoid for any signs of damage, fraying, or corrosion.
- Check all relevant fuses in the vehicle's fuse box that are associated with the cruise control system.
- Using a multimeter, test for continuity and proper voltage at the cruise control vacuum control solenoid connector.
- If accessible and confirmed faulty, replace the cruise control vacuum control solenoid.
- Clear the code and test the cruise control system.
👨🔧 When to Call a Professional
If you have performed basic visual inspections, checked fuses, and are uncomfortable with using a multimeter to test for continuity and voltage in the cruise control circuit, it's best to consult a professional mechanic. Complex electrical diagnostics require specialized tools and knowledge.
Commonly Asked Questions
Can I drive with a P0582 code?
Yes, you can safely drive your vehicle with a P0582 code. The only affected function will be your cruise control, which will not work.
What is the cruise control vacuum control circuit?
This circuit manages the vacuum supply to the cruise control actuator, which uses engine vacuum to maintain a set speed. An open circuit means there's a break in the electrical connection.
How do I test the cruise control vacuum control solenoid?
You can test the solenoid using a multimeter to check for resistance across its terminals and to ensure it receives proper voltage and ground signals when the cruise control is activated.
Is it possible for a blown fuse to cause P0582?
Yes, a blown fuse in the cruise control circuit can certainly cause an open circuit, leading to the P0582 code. Always check fuses as a first step.
What if replacing the solenoid doesn't fix it?
If replacing the solenoid doesn't resolve the P0582 code, the issue likely lies within the wiring harness (an open circuit), connectors, or less commonly, the PCM. Thorough electrical diagnosis is then required.