OBD-II code · Powertrain (generic, extended)
P2C8F DC/DC Converter Temperature Sensor D Circuit High
The ECM detects a circuit high fault on the dc/dc converter temperature sensor d circuit. Reading cannot be used reliably for control.
Is it safe to drive with P2C8F?
The car may go into limp mode (reduced power). Get it diagnosed before a long trip.
Common causes
- Most likelySignal wire shorted to B+
- PossibleOpen sensor
- Less likelyConnector pins corroded - high contact resistance
Repair at a glance
- Difficulty
- Medium
- DIY friendly
- Best left to a mechanic
- Typical labour
- 1–4 h
- Emissions test
- Usually unaffected
- Parts involved
- Dcdc Converter Temp Sensor D, Wiring Harness, Dcdc Converter
Related codes
- P2CA7DC/DC Converter Temperature Sensor E Circuit High
- P2CABDC/DC Converter Temperature Sensor F Circuit High
- P2C8CDC/DC Converter Temperature Sensor D Circuit
- P2C8DDC/DC Converter Temperature Sensor D Circuit Range/Performance
- P2C8EDC/DC Converter Temperature Sensor D Circuit Low
- P2C90Crankcase Ventilation System - Hose A Disconnected
- P2C91Crankcase Ventilation System - Hose B Disconnected
- P2C92Hybrid/EV Battery Contactor Control Supply Circuit/Open
Code data: OBDex open dataset (CC0). Labour times are typical ranges, not a quote.