According to the workshop manual the following values should be measured for the rear temperature sensor:
at 32F 28.8 - 36.4 kOhm
at 77F 9.0 - 11.0 kOhm
at 122F 3.1 - 4 kOhm
Looks like your sensor is good. Next step would be the CCU in the dash. Did you get a chance to read the codes?
