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U0599: Invalid Data Received From DC/DC Converter Control Module A

What Does U0599 Mean?

U0599 is a diagnostic trouble code indicating: Invalid Data Received From DC/DC Converter Control Module A. 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

U0594 Invalid Data Received From Hybrid/EV Powertrain Control Module U0595 Invalid Data Received From Powertrain Control Monitor Module U0596 Invalid Data Received From AC/AC Converter Control Module U0597 Invalid Data Received From AC/DC Converter Control Module A U0598 Invalid Data Received From AC/DC Converter Control Module B U0600 Lost Communication With Engine Oil Pressure Sensor A U0601 Lost Communication With Particulate Filter Pressure Sensor A U0602 Lost Communication With Particulate Filter Pressure Sensor B