P0578

Cruise Control Multi-Function Input A Circuit Stuck

Severity

⚠️ Medium

Can you drive?

Limited driving only, diagnose soon

Approx. repair cost

$56–167 (est.)

Symptoms

Cruise control won't turn on
Cruise control turns off spontaneously
Check Engine light comes on

Causes

Open or short circuit in the cruise control wiring harness
Cruise control switch malfunction
Problems with contacts in connectors
ECU malfunction

How to Fix

Check the wiring harness for opens and shorts
Test the cruise control switch
Clean and check contacts in connectors
If necessary, replace the switch or repair the wiring harness

Related codes

P0571 P0572 P0573