D Range Test
Shift Point, Shift Pattern, and Shift Shock1. Shift the selector lever to D range.
NOTE: Throttle sensor voltage of the EC-AT Tester represents the throttle valve opening.
2. Accelerate the vehicle with half- and full-throttle opening.
3. Verify that 1-2, 2-3, and 3-O/D upshifts, downshifts, and lockup are obtained. The shift points must be as shown in the D range shift diagram.
NOTE:
- Drum speed (rpm) of the EC-AT Tester represents the shift point.
- The vehicle's indicated speed as shown by the vehicle speedometer may not be accurate when the vehicle is on a chassis roller. Therefore, verify the shift points using only the drum speed as shown by the EC-AT Tester.
- There is no lockup when the coolant temperature is below 65 °C (149 °F). [B6 SOHC]
- There is no lockup when the coolant temperature is below 60 °C (140 °F). (K8 DOHC]
- There is no lockup when the brake pedal is depressed.
4. Check the upshifts for shift shock and slippage in the same manner.
5. While driving in O/D [below 159 kph, 99 mph (B6 SOHC), below 170 kph, 105 mph (K8 DOHC)], shift the selector lever to S range and verify that O/D-3 downshift immediately occurs.
D Range Shift Diagram (B6 SOHC Engine):
D range shift diagram (K8 DOHC Engine):
6. Decelerate the vehicle and verify that engine braking effect is felt in O/D and 3rd gear.
7. Select the hold mode.
8. Accelerate the vehicle and verify that the 1-2 and 2-3 upshifts and the 3-1 downshift are obtained. The shift points are as shown in the D range (Hold) shift diagram.
D range (Hold) shift diagram (B6 SOHC Engine):
D Range (Hold) Shift Diagram (K8 DOHC Engine):
9. Decelerate the vehicle and verify that engine braking effect is felt in 3rd gear.
Evaluation:
Evaluation
Noise and Vibration
NOTE: Abnormal noise and vibration can also be caused by the torque converter, drive shaft, or differential. Therefore, check for the cause thoroughly.
Drive the vehicle in O/D (lockup), O/D (non-lockup), and 3rd (Hold); and check for abnormal noise and vibration.
Kickdown
Drive the vehicle in O/D, 3rd, and 2nd gears and check that kickdown occurs for O/D -> 3, O/D -> 2, O/D -> 1, 3 -> 2, 3 -> 1, 2 -> 1, and that the shift points are as shown in the shift diagram above.