Control Solenoid Valve & TCM Assembly Solenoid Performance Test
Control Solenoid Valve and Transmission Control Module Assembly Solenoid Performance Test
^ Tools Required
- DT-47825 Solenoid Performance Test Block
The purpose of this procedure is to test the operation of the control solenoid (w/body and TCM) valve assembly solenoids for a stuck open or stuck closed condition. The DT-47825 bolts to the mounting surface of the control solenoid (w/body and TCM) valve assembly. Compressed air is attached to the test block, through the control solenoid (w/body and TCM) valve assembly solenoid passage and back to a pressure gage on the test block.
An air pressure gage is used to display the air passing through the solenoid. If the solenoid is unable to allow air through or the air is constantly flowing through the solenoid may be stuck. The scan tool is used to command the solenoids ON and OFF while watching the pressure gage, to determine if the solenoid is functioning correctly. The recommended shop air pressure for this test is 90-100 Psi.
1. Remove the control solenoid (w/body and TCM) valve assembly from the transmission.
2. Bolt the DT-47825 to the control solenoid (w/body and TCM) valve assembly on the valve body mounting surface. Use the bolts and washers to attach the test block.
3. Install the pressure gage to the affected solenoid air port.
4. Connect the shop air pressure line to the J 47825-1 Air PSI In port.
5. Ignition ON, with a scan tool command the solenoid in question On and Off. Watch the air pressure gage and look for the change in pressure as you command the valve On and Off. The valve should allow air pressure to flow through the valve port to the gage with a result of pressure reading on the gage. If the valve is stuck closed, no pressure change will occur. Command the solenoid valve On and Off several times to determine the state of the solenoid valve in question. Release the air pressure in the gage between pressurization tests.
Control Solenoid (w/Body and TCM) Valve Assembly with Control Solenoid Test Plate:
Solenoid Testing Procedure:
