never seen them at hydraulic pump
only thing u have at hydraulic pump is the 2 wires to trigger the solenoid
they are usually ablack wire and a blue/yellow wire
or sometimes pink and a pink/blue i think
but for water temp they are always close to drivers side front near the coil
u cant miss it
u dont even need diagrams for that
just find the sensor unplug it then buzz it to the inside with a multimeter
first remove the front plastic cover over the leads thats infront of inlet manifold and u can see it easy on drivers side