OBD-II code · Powertrain (generic)
P0C3E DC/DC Converter Temperature Sensor B Range/Performance
The ECM detects a range/performance fault on the dc/dc converter temperature sensor b. Reading cannot be used reliably for control.
Is it safe to drive with P0C3E?
The car may go into limp mode (reduced power). Get it diagnosed before a long trip.
Common causes
- Most likelySensor characteristic drifted
- PossibleSensor mounting displaced
- Less likelySensor element aged beyond calibration window
Repair at a glance
- Difficulty
- Easy
- DIY friendly
- Best left to a mechanic
- Typical labour
- 0.5–3 h
- Emissions test
- Usually unaffected
- Parts involved
- Dcdc Converter Temp Sensor B, Wiring Harness, Dcdc Converter
Related codes
- P0C39DC/DC Converter Temperature Sensor A Range/Performance
- P0C3BDC/DC Converter Temperature Sensor A High
- P0C3CDC/DC Converter Temperature Sensor A Intermittent/Erratic
- P0C3DDC/DC Converter Temperature Sensor B Circuit
- P0C3FDC/DC Converter Temperature Sensor B Low
- P0C40DC/DC Converter Temperature Sensor B High
- P0C41DC/DC Converter Temperature Sensor B Intermittent/Erratic
Code data: OBDex open dataset (CC0). Labour times are typical ranges, not a quote.