P0586
UniversalCruise Control Vent Control Circuit / Open
Low SeverityThis code indicates an electrical issue within your vehicle's cruise control system's vent control circuit. Specifically, the circuit that manages the release of vacuum to disengage the cruise control is open, which can prevent the cruise control from functioning correctly or at all.
⚠️ Before You Begin (Safety First)
Always disconnect the battery before performing any electrical work on your vehicle to prevent accidental shorts or injury. Ensure the vehicle is off, in park, and the parking brake is engaged.
Common Symptoms
- Cruise control does not engage
- Check Engine Light (CEL) illuminated
- Cruise control engages but fails to disengage properly (less common with an 'open' circuit)
Common Causes
- Faulty cruise control vent control solenoid
- Open circuit (broken wire) or short in the wiring to the vent control solenoid
- Blown fuse related to the cruise control system
- Corrosion or loose electrical connections in the circuit
- Faulty cruise control module (less common, but possible)
Frequently reported on: General/Universal
Diagnostic Steps
- Visually inspect all wiring and connectors leading to the cruise control vent control solenoid for any signs of damage, fraying, corrosion, or looseness.
- Locate and check all fuses associated with the cruise control system in your vehicle's fuse box. Replace any blown fuses.
- If accessible, use a multimeter to test the resistance of the vent control solenoid. An 'open' reading (infinite resistance) would indicate a faulty solenoid. Consult your vehicle's service manual for the correct resistance specifications.
- If wiring damage or a faulty solenoid is identified, proceed with replacement or repair of the affected component.
👨🔧 When to Call a Professional
If you have thoroughly checked basic wiring, fuses, and connections and the problem persists, or if you are uncomfortable performing electrical circuit diagnosis, it is best to consult a professional mechanic. Specialized tools may be required for complex electrical troubleshooting.
Commonly Asked Questions
What does the P0586 code specifically mean for my car?
P0586 indicates an open circuit within the cruise control system's vent control. This typically means the part responsible for releasing vacuum to disengage cruise control is not functioning due to an electrical interruption.
Can I still drive my car safely with a P0586 code?
Yes, you can safely drive your vehicle. The P0586 code primarily affects the functionality of the cruise control system and does not impact essential vehicle operations like steering, braking, or engine performance.
Where is the cruise control vent control solenoid located?
The location of the cruise control vent control solenoid varies significantly by vehicle make and model. It is typically found in the engine bay, often associated with the cruise control actuator or vacuum system. Refer to your vehicle's service manual for its exact position.
Is fixing a P0586 code expensive?
The cost to fix a P0586 code can vary. It might be an inexpensive fix like replacing a blown fuse or repairing a damaged wire. However, if the vent control solenoid or a more complex cruise control module needs replacement, costs would be higher.
Will clearing the P0586 code fix the problem?
No, clearing the P0586 code will only turn off the Check Engine Light temporarily. The code will reappear if the underlying electrical issue in the cruise control vent control circuit is not properly diagnosed and repaired.