P0583 Cruise Control Vacuum Control Circuit Low
Older engines without electronic throttle use a vacuum cruise servo on the throttle cable: a vacuum valve (closed when unpowered) opens the throttle with intake vacuum, a vent valve (open when unpowered) holds or releases it, and a dump valve fed through the brake switch vents it when braking. Where the engine module drives these valves, it checks each circuit and switches cruise off; CARB treats this as emission-neutral, usually without warning lamp. P0583 means the voltage at the vacuum valve driver is too low – a control line shorted to ground or a shorted coil, so the valve could stay powered. No manufacturer document available to us uses this code.
Likely causes
Symptoms
- Cruise control cannot be engaged or switches off
- Cruise indicator goes out or flashes (depending on vehicle)
- Usually no check engine light, code stored only
Repair estimate
Typical range across vehicles; the real cost depends on what the testing finds.
Parts involved
Related codes
References: patents.google.com, patents.google.com, law.cornell.edu.