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 a sensor that checks the temperature of a part in the car is saying it's too cold when it shouldn't be.
The DC/DC converter temperature sensor 'B' is reporting a temperature that is lower than the expected range.
The DC/DC converter is responsible for converting high-voltage battery power into the lower voltage required by the vehicle's electrical system. Sensor 'B' monitors the temperature of this converter to ensure it operates within safe limits. If the sensor reports a temperature that is too low, it could indicate a sensor malfunction or an issue with the converter's cooling system.
• Check engine light illuminated
• Reduced electrical performance
• Possible overheating of electrical components
• Faulty temperature sensor
• Wiring issues or poor connections
• Cooling system malfunction
DC/DC Converter: A device that converts direct current (DC) from one voltage level to another.
Temperature Sensor: A device that measures temperature and sends the information to the vehicle's computer.
• Verify the code with an OBD-II scanner
• Inspect the wiring and connections to the temperature sensor
• Test the temperature sensor for proper operation
• Replace the faulty temperature sensor
• Repair or replace damaged wiring
• Ensure proper cooling system function
• OBD-II scanner
• Multimeter
• Basic hand tools
$100 - $300
Moderate
• Chevrolet Volt
• Nissan Leaf
• Toyota Prius
• Regular maintenance checks
• Ensure cooling system is functioning properly
• Inspect electrical connections periodically
Sensor Issue
• Do not ignore the check engine light
• Have the vehicle inspected by a professional
• Avoid driving long distances until the issue is resolved
Check with your vehicle manufacturer for warranty coverage on electrical components.
This code has been observed in hybrid and electric vehicles where temperature regulation of the DC/DC converter is crucial.
Moderate – It should be addressed soon to avoid potential damage to the electrical system.
Ignoring this code may lead to further vehicle damage and potential safety hazards.
• Vehicle at operating temperature
• Stable environmental conditions
The DC/DC converter is typically located near the vehicle's battery or under the hood.
Q: Can I drive with this code?
A: It's not recommended to drive for long periods with this code as it may lead to further issues.
Q: How do I reset the check engine light?
A: You can use an OBD-II scanner to clear the code, but it's important to fix the underlying issue first.
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