P0578
Cruise Control Multi-Function Input A Circuit Stuck
Cruise Control Multi-Function Input A Circuit Stuck: an electrical fault is present in the circuit. This affects cruise-control operation.
- Check engine light: Yes
- Emissions related: No
- Repair difficulty: easy
Common causes
Ordered by how often each turns out to be the cause.
- Stalk button mechanically stuckCommon
Parts involved
- Cruise Control Stalk
P0578 is a generic OBD-II code defined by SAE J2012. Exact wording and diagnostic procedure vary by manufacturer and model. Code definitions are drawn from the public-domain OBDex dataset; the workshop notes are our own.