Shift Point Road Test
Road Testing VehicleNOTE: Always drive the vehicle in a safe manner according to driving conditions and obey all traffic laws.
The Shift Point Road Test and Torque Converter Clutch Operation Test provide diagnostic information on transaxle shift controls and torque converter operation.
Shift Point Road Test
This test verifies that the shift control system is operating correctly.
1. Bring engine and transaxle up to normal operating temperature.
2. Operate the vehicle with the selector lever in the D position (overdrive switch ON).
3. Apply minimum throttle and observe the speeds at which upshift occurs and torque converter engages. Refer to the following Shift Speeds Chart for the appropriate final drive ratio.
4. Stop the vehicle. Select the D position (overdrive switch OFF). Repeat Step 3. The transaxle will make all upshifts, except third to fourth, and torque converter clutch apply should occur above 80 km/h (50 mph).
5. Press the accelerator pedal to the floor, wide open throttle (WOT). The transaxle should shift from third to second, or third to first, depending on vehicle speed, and torque converter clutch should release.
6. With vehicle speed above 48 km/h (30 mph), move the transaxle range selector lever from D position to first position and release the accelerator pedal. The transaxle should immediately downshift to second gear. When vehicle speed drops below 32 km/h (20 mph), the transaxle should downshift into first gear.
7. If transaxle fails to upshift/downshift or torque converter clutch does not apply/release, refer to Diagnosis By Symptom for possible causes. Diagnosis By Symptom Index
Shift Speeds Chart