Engine-CodesGeneric – U059A

U059A Code - Invalid Data Received From DC To DC Converter Control Module 'B'

Quick Answer

The diagnostic trouble code U059A indicates that the vehicle's onboard computer has detected invalid data being received from the DC to DC converter control module 'B'. Common causes include Faulty DC to DC Converter Control Module: A malfunctioning control module can send incorrect data, triggering this diagnostic trouble code, Wiring Issues: Poor electrical connections or damaged wiring between the control module and other components can lead to data transmission errors, Software Glitch: A software glitch in the control module's programming can cause it to send invalid data to the vehicle's onboard computer. Severity is High - diagnose this code as soon as possible. Driving is not recommended if the warning light is flashing, the engine runs poorly, or safety-related symptoms are present.

What it means
U059A indicates Invalid Data Received From DC To DC Converter Control Module 'B'.
Common causes
Common causes include Faulty DC to DC Converter Control Module: A malfunctioning control module can send incorrect data, triggering this diagnostic trouble code, Wiring Issues: Poor electrical connections or damaged wiring between the control module and other components can lead to data transmission errors, Software Glitch: A software glitch in the control module's programming can cause it to send invalid data to the vehicle's onboard computer.
Severity
High - diagnose this code as soon as possible.
Can I drive?
Driving is not recommended if the warning light is flashing, the engine runs poorly, or safety-related symptoms are present.
Table of contents Created and updated by William Orellana on Sep 11, 2024
💬 Need more help? Ask Auto Expert for instant answers — it's free!
AutoCodes App

Fix Your Car Smarter

Try the New AutoCodes App!

Get complete OBDII diagnostics, repair solutions, and cost estimates, plus AI chat support on demand.

AutoCodes App on Google Play

Code U059A Description

The diagnostic trouble code U059A indicates that the vehicle's onboard computer has detected invalid data being received from the DC to DC converter control module 'B'. The DC to DC converter control module is responsible for regulating the voltage and current flow between the high-voltage battery (typically found in hybrid or electric vehicles) and the vehicle's electrical system. When the control module detects invalid data, it may result in various issues affecting the vehicle's performance and functionality.

OBDII Code U059A - Invalid Data Received From DC To DC Converter Control Module 'B'
U059A Code - Invalid Data Received From DC To DC Converter Control Module 'B'

Common Causes of U059A

  1. Faulty DC to DC Converter Control Module: A malfunctioning control module can send incorrect data, triggering this diagnostic trouble code.
  2. Wiring Issues: Poor electrical connections or damaged wiring between the control module and other components can lead to data transmission errors.
  3. Software Glitch: A software glitch in the control module's programming can cause it to send invalid data to the vehicle's onboard computer.
  4. Voltage Fluctuations: Sudden voltage fluctuations in the electrical system can disrupt the data transmission between the control module and other systems.

Symptoms of U059A

  1. Check Engine Light: The most common symptom associated with this code is the illumination of the check engine light on the vehicle's dashboard.
  2. Loss of Power: The vehicle may experience a loss of power or reduced acceleration due to the invalid data affecting the control module's operation.
  3. Electrical Issues: Electrical components such as lights, power windows, or infotainment systems may exhibit erratic behavior or malfunction.
  4. Poor Fuel Efficiency: The vehicle may experience decreased fuel efficiency as a result of the control module's inability to properly manage the electrical system.

How to Fix U059A

  1. Diagnostic Scan: Start by performing a diagnostic scan using a compatible OBD-II scanner to retrieve the specific trouble code and pinpoint the issue.
  2. Inspect Wiring: Check the wiring connections between the DC to DC converter control module and other components for any damage or loose connections.
  3. Test Control Module: Test the DC to DC converter control module to determine if it is functioning correctly or if it needs to be replaced.
  4. Software Update: If a software glitch is suspected, consider updating the control module's software to resolve any programming issues.
  5. Replace Control Module: If the control module is found to be faulty, replace it with a new unit to restore proper functionality to the vehicle's electrical system.

Cost to Fix U059A

The typical repair costs for addressing the U059A diagnostic trouble code can vary depending on the specific cause of the issue and the vehicle's make and model. In general, the cost of parts for a DC to DC converter control module can range from $200 to $500, while labor costs can add an additional $100 to $300. Overall, the total repair cost for this issue may range from $300 to $800. However, it's important to note that these estimates are approximate, and actual costs can vary based on factors such as the vehicle's location, make and model, and the rates charged by auto repair shops. It's recommended to obtain a detailed quote from a trusted mechanic or dealership to get a more accurate estimate for the repair.

Need more information about the U059A code?

Need more information on how to fix the U059A code? Get Access to Factory Service Manuals

Need Help with the Code?

Get the U059A code diagnosed by a professional: Find a repair shop in your area

Code U059A Information for Specific Makes

  • U059A Chrysler — Invalid Data Received From DC To DC Converter Control Module 'B'
  • U059A Dodge — Invalid Data Received From DC To DC Converter Control Module 'B'
  • U059A Jeep — Invalid Data Received From DC To DC Converter Control Module 'B'
  • U059A RAM — Invalid Data Received From DC To DC Converter Control Module 'B'
About the author: William Orellana is a Master Mechanic and Mechanical Engineer with over 30 years of experience diagnosing and repairing vehicles. Learn more about his background.

Frequently Asked Questions about U059A Code

No Frequently Asked Questions about U059A Code found.

Discuss the causes and fixes for U059A OBDII Code

Code U059A comments

No comments found for this page.