P0581 - Cruise Control Multi-Function Input A Circuit High

The cruise-control multi-function input A signal is higher than expected.

Code Overview

The cruise-control multi-function input A signal is higher than expected.

Common Causes

• Cruise-control switch or vacuum control fault
• Damaged wiring or connector
• Clock spring or module issue

Diagnostic Steps

1. Inspect cruise-control switch and vacuum control circuits
2. Watch input data if supported
3. Check connector condition and continuity

Likely Repairs & Cost Guides

Use test results to confirm the fault before pricing the repair.

Related OBD Codes

Browse the closest code-family pages when the same fault pattern often shows up nearby.

Next Steps

Move from the code to a diagnosis path, then into repair pricing once the fault is confirmed.