Procedure
1. Remove the wiring harness from the two transmission output speed sensors and connect a 8T-5200 Signal Generator to the speed sensors. Ensure the signal generator is switched OFF and the parking brake control is in ENGAGED position.
2. Start the engine and operate at low idle and then increase engine speed to high idle. Observe the pressure gauges for the transmission clutches that are used in NEUTRAL.
3. Move the transmission control to the DRIVE position, increase the engine speed to high idle, and observe the gauges for transmission clutch that is used in FIRST gear.
4. Start the signal generator, increase the frequency until the transmission shifts gears, and observe the gauges for the transmission clutches that are used in SECOND gear.
5. Increase the engine speed to high idle and observe the gauges for the transmission clutches that are in SECOND gear.