Easy one-page printout for the garage or repair shop
This summary uses the existing diagnostic information shown in full below.
This code means that the part of the car that changes electricity to a different type is too hot, and the car is trying to protect itself by going into a safe mode.
The DC/DC converter is overheating, triggering a limp home mode to prevent damage.
The DC/DC converter in the vehicle is responsible for converting high voltage from the battery to a lower voltage for the car's electrical systems. When it overheats, it sends a signal to the car's computer to enter limp mode, reducing power to prevent damage.
• Reduced engine power
• Warning light on dashboard
• Overheating warning
• Blocked cooling vents
• Faulty cooling fan
• High ambient temperature
DC/DC Converter: A device that converts direct current (DC) from one voltage level to another.
Limp Home Mode: A safety feature that limits vehicle performance to prevent damage.
• Check for any obstructions in the cooling vents.
• Inspect the cooling fan for proper operation.
• Measure the ambient temperature and compare it to the vehicle's operating range.
• Clear any blockages from the cooling vents.
• Replace or repair the cooling fan if faulty.
• Ensure the vehicle is not operating in excessively high temperatures.
• OBD-II scanner
• Multimeter
• Thermal camera
$100 - $500
Moderate
• Chevrolet Volt
• Toyota Prius
• Nissan Leaf
• Regular maintenance of cooling systems
• Avoiding extreme temperature conditions
• Regularly checking for software updates
Temperature Issue
• Do not ignore the warning light.
• Drive to the nearest service center if safe.
• Avoid heavy loads or steep inclines until repaired.
Check with the manufacturer for specific warranty coverage on electrical components.
This code has become more common with the increase in hybrid and electric vehicles that use DC/DC converters.
High – Immediate attention is required to prevent potential damage.
Driving with this code active can lead to reduced vehicle performance and potential safety hazards.
• Vehicle at operating temperature
• Ambient temperature within normal range
The DC/DC converter is typically located near the battery pack or under the hood.
Q: Can I drive my car with this code?
A: It's not recommended as it can lead to further damage or reduced performance.
Q: How can I prevent this issue?
A: Ensure regular maintenance and avoid driving in extreme temperatures.
Budget · Enhanced code reader
A wired color-screen reader with readiness hotkeys, live data, code definitions, and data logging.
A dependable first-pass scanner for verifying the code and checking live data or readiness monitors.
View on Amazon
Universal · Digital multimeter
A solid entry-level multimeter for voltage, continuity, resistance, and basic electrical troubleshooting.
Helpful for voltage, continuity, and basic electrical checks while narrowing down the fault.
View on Amazon
Universal · Socket set
A practical metric and SAE socket set for many diagnostic teardowns and component replacements.
Useful for common under-hood access and removal work during diagnosis or repair.
View on AmazonThese are optional diagnostic tools, not guaranteed fixes. As an Amazon Associate I earn from qualifying purchases.