Posted on October 12, 2023 by Jack BOBCAT S130 – REAR AUXILIARY DIVERTER VALVE – Solenoid Testing Use a test meter to measure coil resistance [Figure 20-120-1]. Coil wires do not have polarity. Correct resistance is 8.6 – 9.5 ohm @ 68 degrees fahrenheit. Replace the test meter with 12 volt power. You can see and hear the spool shift.