Generic fault code
P0580 — Cruise control multi-function input A, circuit: signal low
The control unit stores code P0580 when it detects this fault: “Cruise control multi-function input A, circuit: signal low”.
Indicative severity: MediumSpeed, idle and auxiliary inputs
Reviewed by Daniel Morales, founder of Reprorace SL, on
What does code P0580 mean?
The vehicle speed sensors and idle control, the speed the engine turns at when you are not accelerating.
- System
- P · Powertrain
- Area
- Speed, idle and auxiliary inputs · Car system: Fuel and air
- Type
- Generic (SAE J2012 / ISO 15031-6): the same meaning on every make
- Indicative severity
- Medium. Diagnose soon: it may raise emissions or consumption, or trigger limp-home mode.
What usually causes code P0580?
- Short circuit to ground
- Loose or corroded connector, backed-out terminals
- Damaged, chafed or pinched wiring
The most likely causes come first. Only a check on the car confirms which one is yours.
What are the symptoms of code P0580?
- Speedometer or cruise control not working properly
- Idle too high, too low or unstable
- Odd shifts on automatics, or ABS and ESP lights
These are the usual symptoms of this kind of fault: not all of them always appear, and sometimes you notice nothing.
Can I keep driving with code P0580?
With care, and not for long. You can take the car to a workshop, ideally without long trips or heavy loads, and without putting it off: fuel use or emissions may rise and the car may go into limp-home mode (less power). If the light flashes, a red warning light comes on, the temperature rises or you notice a loss of power, noises or smoke, stop as soon as it is safe.
This is guidance only: only someone who checks the car can say whether it is safe to drive.
An indicative description of the code's generic meaning. Each manufacturer may give it a different meaning, conditions or tests: always follow its service information and your workshop's advice.
What you can do yourself
For this kind of fault
Note whether the fault appears with something specific, such as braking, switching on the air conditioning or turning the wheel: it helps the workshop find the input at fault.
Read the code and keep the report: with an ECO-LITE in the OBD socket you see it on your phone or computer, with the data captured when the fault happened.
Look for anything obvious: a loose connector, a disconnected hose, a fuel cap not closed properly or a low fluid level. Do not take apart anything you do not know.
Clear the code only after writing it down or after the repair. Clearing turns the light off, but it also deletes the freeze-frame data and the readiness monitors used at the inspection.
Drive normally for a few days and read the codes again. If the code comes back, the fault is still there: book the workshop and bring the report.
Read your car's fault codes on your phone
With an ECO-LITE in the OBD socket you see the codes in your account, with the data captured when the fault happened, and your workshop can check them remotely, always with your permission.
Related codes
- P0577Cruise control, input circuit: signal high
- P0578Cruise control multi-function input A, circuit: stuck
- P0579Cruise control multi-function input A, circuit: range/performance
- P0581Cruise control multi-function input A, circuit: signal high
- P0582Cruise control vacuum, control circuit open
- P0583Cruise control vacuum, control circuit: signal low
P05xx codes: vehicle speed, idle control and auxiliary inputs
In the glossary
Read more: Remote OBD diagnostics: what it is, how it works and what it can't do