BQ40Z60: Using without external temperature sensors; the Cell temperature = -273 deg C

Part Number:BQ40Z60

Hi, I made a new board whose circuit came from the bq40z60evm except for the external temperature sensors which I eliminate, and connect nothing to the pins.

I disabled the unused temperature sensors by clearing the corresponding flag in the bqStudio; Settings>Temperature Enable [TS4=0][TS3=0][TS2=0][TS1=0][TSInt=1].

However, setting the Temperature mode is obscure. The reference manual says the flag 1 means reporting the FET temperature, and 0 means reporting the cell temperature. So I configure this way because the non-existent external sensors cannot report the FET temperature;  Settings>Temperature Mode [TS4=0][TS3=0] [TS2=0][TS1=0][TSint=1]

As a result, the temperature report is as follows: the int temperature = FET temperature = 23.5 deg C, while the Cell temperature = -273 deg C. Is it correct function? 

Thanks,

Joshua Kim