Easy one-page printout for the garage or repair shop
This summary uses the existing diagnostic information shown in full below.
The car's computer noticed that the part that helps change electricity from one form to another is getting too much power. It's like using a charger that is too strong for your phone.
This code indicates that the voltage level detected by the DC/DC converter's voltage sensor 'B' is higher than the expected range.
The DC/DC converter is responsible for converting high voltage from the battery to a lower voltage to power various electrical systems in the vehicle. Sensor 'B' monitors this voltage. If the voltage is too high, it can indicate a malfunction in the converter or sensor.
• Check engine light is on
• Electrical systems malfunction
• Possible battery charging issues
• Faulty DC/DC converter
• Wiring issues such as shorts or opens
• Defective voltage sensor 'B'
DC/DC Converter: A device that converts direct current (DC) from one voltage level to another.
Voltage Sensor: A component that measures the voltage level in a circuit.
• Use a scan tool to confirm the code and check for other related codes.
• Inspect the wiring and connectors related to the DC/DC converter and sensor 'B'.
• Test the voltage output of the DC/DC converter.
• Repair or replace damaged wiring or connectors.
• Replace the faulty DC/DC converter.
• Replace the defective voltage sensor 'B'.
• OBD-II scan tool
• Multimeter
• Basic hand tools
$200 - $600
Moderate
• Chevrolet Volt
• Toyota Prius
• Nissan Leaf
• Regular maintenance checks of electrical systems.
• Ensure proper battery charging practices.
• Avoid overloading electrical systems.
Sensor Issue
• Avoid driving the vehicle until the issue is resolved to prevent further damage.
• Consult a professional mechanic for accurate diagnosis and repair.
Check with your vehicle manufacturer as electrical components may be covered under warranty.
This code is more common in hybrid and electric vehicles due to their complex electrical systems.
Moderate – While the vehicle may still operate, ignoring the issue can lead to more serious electrical problems.
Driving with electrical issues can be unsafe and may lead to vehicle malfunction.
• Vehicle must be running.
• Electrical systems should be active.
The DC/DC converter is typically located under the hood, near the battery or in the engine compartment.
Q: Can I drive my car with this code?
A: It's not recommended as it can lead to further electrical issues.
Q: How do I reset the check engine light?
A: Fix the issue first, then use an OBD-II scanner to clear the code.
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