Special Tools
- DT-47825-100 Control Solenoid Test Kit. See Special Tools .
- DT-47825-20 Adapter Harness. See Special Tools .
The purpose of this procedure is to test the functionality of the control solenoid (w/body and TCM) valve assembly solenoids for a gross stuck open or stuck closed condition. The DT-47825-100 test block is bolted to the control solenoid (w/body and TCM) valve assembly on the valve body mounting surface. See Special Tools . Pressurized air is passed into the aluminum test block, through the control solenoid (w/body and TCM) valve assembly solenoid passage and back to a pressure gage on the test block. The pressure gage indicates open if air pressure is passed through the solenoid, or closed if the solenoid is unable to pass air through. A scan tool is used to command the solenoids ON and OFF. While watching the pressure gage, one can determine the valve functionality. The recommended shop air pressure for this test is 90-100 psi.