AutoCodes - OBDII Code List - P0C84
P0C84 - Hybrid Battery Temperature Sensor 'H' Circuit High
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P0C84 Possible Causes
- Faulty Hybrid battery thermistor
- Faulty Battery smart unit
- Hybrid battery thermistor harness is open or shorted
- Hybrid battery thermistor circuit poor electrical connection
How do I fix code P0C84?
Check the "Possible Causes" listed above. Visually inspect the related wiring harness and connectors. Check for damaged components and look for broken, bent, pushed out, or corroded connector's pins.
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Cost of diagnosing the P0C84 code
Labor: 1.0
The cost of diagnosing the P0C84 code is 1.0 hour of labor. The auto repair labor rates vary by location, your vehicle's make and model, and even your engine type. Most auto repairs shops charge between $75 and $150 per hour.Possible Symptoms
- Engine Light ON (or Service Engine Soon Warning Light)
P0C84 Description
The battery temperature sensors are provided at 3 locations of the HV battery. The resistance of the thermistor, which is built into each battery temperature sensor, varies in accordance with changes in the HV battery temperature. The lower the battery temperature, the higher the thermistor resistance. Conversely, the higher the temperature, the lower the resistance. The battery smart unit uses the battery temperature sensors to detect the HV battery temperature, and sends the detected value to the power management control ECU. Based on the results of this detection, the power management control ECU controls the blower fan. (The blower fan starts when HV battery temperature rises above a predetermined level.)
More Information
Need more information on how to fix the P0C84 code?Get Access to Factory Service Manuals
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