P0581: Cruise Control Multi-Function Input A Circuit High
What to do
Driveable; cruise control will not respond. If the horn or steering wheel audio buttons have also stopped working, say so — that points at the clock spring, which carries all of them through one worn joint.
What this code means
The primary cruise control input is reading above its plausible range — an open circuit somewhere between the switch and the module. On a steering wheel switch pack that path runs through the clock spring, a rotating connector that wears with use and is a recurring cause of open circuits on every steering wheel control at once.
Likely causes
Start here
- Open circuit in sensor wiring · moderate
- Faulty clock spring in steering wheel · specialist
- Faulty cruise control switch · moderate
- Corroded or loose connector · easy
Symptoms
Components involved
Information, not instruction
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Community experience
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