Get the app
Quick access from your home screen.
DTC codes / P0Cxx · Hybrid propulsion / P0C91
P0C91 indicates that the hybrid or electric vehicle battery temperature sensor J circuit is sending an intermittent or erratic signal to the battery energy control module. The computer has detected that the voltage or resistance from this sensor is jumping around or dropping out unpredictably, rather than reporting a steady temperature reading.
Guidance is general and written for all OBD-II vehicles. Exact tests and values vary by model, so confirm the fault before replacing parts.
Get the app
Quick access from your home screen.