Does anyone know where the coolant temperature sensor is. I see two sensors. One small and one larger one. Which one is the coolant temperature sensor?

 

Can't really describe exactly where it is...but if you know the general location of it...it's the one with the blue connector (as least mine is.)

 

Best I can do on the location.

The two wires connecting to it are yellow and black.

 

There are two sensors at the same location.

The smaller one is the low resolution sensor for the temp gauge in the instrument cluster.

The larger one is the high resolution sensor for the ECU. This is the one you need to replace if you are getting the ECTS code.

 

Thanks for the info. I'm getting an ECU code. Time to replace.