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U3573: Coolant Mixing Valve Control Circuit

What Does U3573 Mean?

U3573 is a diagnostic trouble code indicating: Coolant Mixing Valve Control Circuit. This code relates to the vehicle systems system. The vehicle's computer detected a condition outside normal operating parameters and stored this code.

What To Do Next

  1. 1
    Find your vehicle above

    Click your make and model for real owner reports and common causes specific to your vehicle.

  2. 2
    Check for recalls

    Go to nhtsa.gov/recalls and enter your VIN. Free repairs if covered.

  3. 3
    Get a professional diagnosis

    A code alone doesn't identify the exact failed part. A diagnostic ($50–$150) pinpoints the root cause.

Related Codes

U3568 Anode Multifunction Valve Control Circuit U3569 Anode Multifunction Valve U3570 Stack Inlet Coolant Temperature Sensor Circuit U3571 Stack Outlet Coolant Temperature Sensor 1 Circuit U3572 Stack Outlet Coolant Temperature Sensor 2 Circuit U3574 Coolant Mixing Valve U3575 Coolant Mixing Valve Position Sensor Circuit U3576 Stack Differential Pressure Sensor Circuit