U0599
Invalid Data Received From DC/DC Converter Control Module A
U0599 is an OBD-II diagnostic trouble code meaning: Invalid Data Received From DC/DC Converter Control Module A. Common causes: malfunction of the dc/dc converter module, problems with wiring or connectors. Estimated repair cost: $167–556.
Symptoms
- Check Engine Light Is On
- Problems with charging a high-voltage battery
- Reduced performance of the hybrid system
- Errors in the operation of electrical systems
- The car goes into emergency mode
Causes
- Malfunction of the DC/DC converter module
- Problems with wiring or connectors
- Short circuit in the circuit
- Software error in the control unit
- Module power problems
How to Fix
- Check connections and integrity of wiring to the DC/DC module
- Scan all modules for additional errors
- Check DC/DC module power and grounding
- Update control unit software
- Replace the DC/DC converter module if necessary
Related codes
Error U0599 by Vehicle Brand
FAQ
What does the U0599 code mean?
U0599 is an OBD-II diagnostic trouble code that indicates: Invalid Data Received From DC/DC Converter Control Module A
What causes a U0599 error code?
The most common causes of U0599 include: Malfunction of the DC/DC converter module; Problems with wiring or connectors; Short circuit in the circuit; Software error in the control unit.
How do I fix a U0599 diagnostic trouble code?
To fix U0599: Check connections and integrity of wiring to the DC/DC module. Scan all modules for additional errors. Check DC/DC module power and grounding. For a complete diagnosis, use an OBD-II scanner.
Is it safe to drive with U0599?
Do not drive — repair immediately
How much does it cost to fix U0599?
The estimated repair cost for U0599 is $167–556. Actual cost depends on your vehicle, location, and labor rates.
See also: Russian version · NationStat