P0C3F

DC/DC Converter Temperature Sensor B Low

Severity

⚠️ Medium

Can you drive?

Yes, but get it checked soon

Approx. repair cost

$17–56 (est.)

Symptoms

Check Engine light comes on
Reduced performance of the hybrid system
Power limitation
DC/DC converter overheating
Incorrect temperature readings in diagnostic equipment

Causes

Temperature sensor B fault
Open or short circuit in the sensor circuit
Poor contact in the sensor connector
DC/DC converter malfunction
Problems with the control unit software

How to Fix

Check the condition of temperature sensor B
Check the integrity of the circuit and connectors
Measure sensor resistance
Check the functionality of the DC/DC converter
Update the control unit software if necessary

Related codes

P0C3E P0C40 P0C41