P0580 — Cruise Control Multi-Function Input A Circuit Low
Drive with caution — fix soon.
What P0580 means
This code means the computer detected a lower-than-expected voltage on the cruise control multi-function input A circuit. It usually points to a short to ground, damaged wiring, or a faulty cruise control switch. It's a common, repairable issue that typically comes down to a wiring or switch fix rather than major engine repair.
Common symptoms
- Check engine light is on
- Cruise control will not engage
- Cruise control drops out while in use
- Unresponsive cruise control switch
- Cruise warning light may illuminate
Common causes
- Short to ground in the input circuit
- Faulty cruise control switch
- Damaged or chafed wiring
- Corroded or loose connector
- Failing cruise control or engine control module
Typical repair cost
$100 – $350
Varies by vehicle and root cause.
Frequently asked questions
Can I keep driving with a P0580 code?
Usually yes. The engine runs normally, but cruise control may not work, so be prepared to control your speed manually until it's repaired.
How much does it cost to fix a P0580 code?
Most repairs run between $100 and $350, depending on whether it's a wiring or connector repair versus replacing the cruise control switch or module.
Is a P0580 code serious?
It's a moderate issue. It won't harm your engine, but the low-circuit reading usually points to a short or switch fault that's worth checking soon.
What causes a low circuit reading on this code?
A low reading often comes from a wire shorted to ground or a failing switch pulling the voltage down. A technician can test the circuit to find the exact cause.