P0578
Cruise Control Multi-Function Input A Circuit Stuck
P0578 is an OBD-II diagnostic trouble code meaning: Cruise Control Multi-Function Input A Circuit Stuck. Common causes: open or short circuit in the cruise control wiring harness, cruise control switch malfunction. Estimated repair cost: $56–167.
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
Error P0578 by Vehicle Brand
FAQ
What does the P0578 code mean?
P0578 is an OBD-II diagnostic trouble code that indicates: Cruise Control Multi-Function Input A Circuit Stuck
What causes a P0578 error code?
The most common causes of P0578 include: Open or short circuit in the cruise control wiring harness; Cruise control switch malfunction; Problems with contacts in connectors; ECU malfunction.
How do I fix a P0578 diagnostic trouble code?
To fix P0578: Check the wiring harness for opens and shorts. Test the cruise control switch. Clean and check contacts in connectors. For a complete diagnosis, use an OBD-II scanner.
Is it safe to drive with P0578?
Limited driving only, diagnose soon
How much does it cost to fix P0578?
The estimated repair cost for P0578 is $56–167. Actual cost depends on your vehicle, location, and labor rates.
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