The coolant temperature sensor can be tested in two ways:
-HI-SCAN tester (PRO).
-With a volmeter.
During the scanner, the display temperature shall be accurate to the engine temperature (-20, 0, 20, 40, 80 degrees). When checking the voltmeter sensor, measure the nominal voltage at different temperatures:
-At 0 degrees-4.05 V.
-At 20 degrees-3.44 V.
-At 40 degrees, 2.72 V.
-At 80 degrees-1.25 V.
