P0C3E

DC/DC Converter Temperature Sensor B Range/Performance

Severity

⚠️ Medium

Can you drive?

Limited driving only, diagnose soon

Approx. repair cost

$33–111 (est.)

Symptoms

Check Engine light comes on
Reduced efficiency of the DC/DC converter
Problems charging a 12-volt battery
The car may go into emergency mode

Causes

Temperature sensor B fault
Problems with wiring or contacts
DC/DC converter malfunction
Short circuit or open circuit in the sensor circuit

How to Fix

Check temperature sensor B for damage
Check the integrity of wiring and contacts
Replace temperature sensor if necessary
Check the operation of the DC/DC converter
Repair only from an authorized dealer

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