What does code P0C81 mean?

Q: What does code P0C81 mean?

Hybrid/EV Battery Temperature Sensor H Circuit. P0C81 indicates that the hybrid or electric vehicle battery pack's temperature sensor H circuit has reported a voltage or signal outside the range the battery energy control module expects. The module uses this sensor to monitor cell temperature for safe charging and discharging, so it logs the code when the signal is implausible, open, or shorted.

DTC codes / P0Cxx · Hybrid propulsion / P0C81

P0C81Hybrid/EV Battery Temperature Sensor H Circuit

P0C81 indicates that the hybrid or electric vehicle battery pack's temperature sensor H circuit has reported a voltage or signal outside the range the battery energy control module expects. The module uses this sensor to monitor cell temperature for safe charging and discharging, so it logs the code when the signal is implausible, open, or shorted.

SystemPowertrain

Code typeGeneric (all makes)

SeverityMedium

Fix difficultyProfessional

AreaHybrid propulsion

Guidance is general and written for all OBD-II vehicles. Exact tests and values vary by model, so confirm the fault before replacing parts.