Caravan AWD V6-201 3.3L (1991)
5. To test the sending unit, measure the resistance between the sending unit terminal and the metal housing. The ohmmeter should read open.
6. Start the engine. The ohmmeter should read between 30 and 55 ohms, depending on engine speed, oil temperature, and oil viscosity.
7. If the switch and sensor read low pressure with the engine running, remove the sending unit. Connect a pressure gauge in place of the sending unit
to test pressure. For oil pressure specifications, refer to Group 9, Engine. If OK, go to step 8.
8. If the above results are not obtained, replace the switch.
