Sensor Test

Connect positive lead of a Rotunda 007-00001 DVOM or equivalent to sensor terminal and negative lead to sensor housing. With sensor submerged in oil (engine full), meter should read OPEN. Resistance should be greater than 100,000 ohms. With sensor out of oil resistance should be less than 1,000 ohms.

It is best to conduct test with sensor in pan with hot oil to ensure that oil properly drains from sensor. If removed from pan, sensor must first be submerged in warm oil to ensure proper positioning of the float before testing. The sensor must be held horizontally during bench testing to ensure that the float remains correctly positioned.