Thermostat Sensor

Replace thermostat (code P0128) eight days ago,
Today new codes- P0118 & U1402
P0118 Engine coolant temperature sensor circuit high
U1402 implausible engine temperature signal received
Question: where is the sensor location. Part number? How to go about fixing this problem.
2012 JK 3.6


Sent from my iPad using WAYALIFE mobile app

Why did you replace the tstat originally? Because of the 128 code? And any chance you put in the wrong temperature rated one? I believe OEM recommends a 190F. You can use a temp laser to see what your coolant is actually at around the thermostat area.

WJCO said:

Why did you replace the tstat originally? Because of the 128 code? And any chance you put in the wrong temperature rated one? I believe OEM recommends a 190F. You can use a temp laser to see what your coolant is actually at around the thermostat area.

Click to expand...

Thanks for replying back, replace thermostat with OEM part from dealer. Now I have two additional codes P2181 cooling system performance and U0101 Lost communication with TCM.


Sent from my iPad using WAYALIFE mobile app