OBD-II code · Powertrain (generic)
P0586 Cruise Control Vent Control Circuit Open
The vent solenoid of a vacuum-driven cruise servo - which releases vacuum to drop throttle - has an open control circuit. The servo cannot release vacuum, so cruise speed cannot be reduced.
Is it safe to drive with P0586?
Usually safe to drive in the short term. Get it diagnosed when convenient, sooner if the car drives differently.
Common causes
- Most likelyOpen in solenoid or harness
- Less likelyPin pushed back out of connector body
- Less likelyCracked solder joint inside the module or sensor
Repair at a glance
- Difficulty
- Medium
- DIY friendly
- Often, with basic tools
- Typical labour
- 0.5–1.8 h
- Emissions test
- Usually unaffected
- Parts involved
- Cruise Vent Solenoid
Related codes
Code data: OBDex open dataset (CC0). Labour times are typical ranges, not a quote.