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TCC Apply Solenoid Test

  1. An analog ohmmeter and a 12 volt source will be needed to perform this test. Connect black lead of ohmmeter to Red wire on solenoid. Connect Red lead of ohmmeter to Black wire on solenoid. If solenoid is a one-wire solenoid, connect Red lead of ohmmeter to solenoid body.
  2. With ohmmeter set at ohms times one, reading should be greater than 20 ohms but not infinite. Connect Red lead of ohmmeter to Red wire of solenoid, and Black lead to black wire or body of solenoid. Ohmmeter reading should be less than previous reading.
  3. Connect a 12 volt source to solenoid. With very low pressure, try to blow through solenoid. Solenoid should be sealed. Disconnect 12 volt source. You should now be able to blow through solenoid. If solenoid does not test as described, replace solenoid.
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