Road Test

Preparation
1. Check and correct (as necessary) the engine coolant, engine oil and ATF levels before testing.
2. Warm up the engine thoroughly to raise the ATF temperature to an operating level of 140 - 158° F (60 - 70° C).
3. Check the idle speed and ignition timing in P position.




D Range (O/D Switch Off)

D Range Test
D Range (O/D Switch Off)
1. Shift the selector lever to D range.
2. Accelerate the vehicle to half throttle and wide open throttle.





3. Verify that 1-2, 2-3, and 3-4 upshifts and downshifts are obtained. The shift points must be as shown.
4. Drive the vehicle in fourth, third, and second gears and verify that kickdown occurs for 4-3, 4-2, 3~2, 3-1, 2-1, and that the shift points are as shown.
5. Decelerate the vehicle and verify that engine braking effect is felt in fourth and third gears.

NOTICE: The torque converter clutch will not operate in the following conditions:
- The engine coolant temperature is below 144° F (62° C).
- The closed throttle position switch is ON.
- The brake switch is ON.

6. Drive the vehicle and verify that torque converter clutch operation (lock-up) is obtained.

D Range (O/D Switch on)
1. Turn the O/D switch from OFF to ON.





2. Accelerate the vehicle to half throttle and wide open throttle, and verify that 1-2 and 2-3 upshift and downshift are obtained. The shift points must be as shown.
3. Drive the vehicle in third and second gears and verify that kickdown occurs for 3-2, 3-1, 2-1, and that the shift points are as shown.
4. Decelerate the vehicle and verify that engine braking effect is felt in third gear.


2 Range Test (O/D Switch on or Off)




1. Shift the selector lever to 2 range.
2. Accelerate the vehicle to half throttle and wide open throttle, and verify that second gear is held.
3. Decelerate the vehicle and verify that engine braking effect is felt.

1 Range Test (O/D Switch on or Off)




1. Shift the selector lever to 1 range.
2. Accelerate the vehicle to half throttle and wide open throttle, and verify that first gear is held.
3. Decelerate the vehicle and verify that engine braking effect is felt.

P Position Test
1. Shift into P position on a gentle slope, release the brake, and verify that the vehicle does not roll.


Noise and Vibration
NOTICE: Abnormal noise and vibration can also be caused by the torque converter, driveshaft, or differential. Therefore, thoroughly check for the cause.

1. Drive the vehicle in O/D (lock-up), O/D (no lock-up), and 3GR (O/D OFF) and check for abnormal noise or vibration.


Kickdown
1. Drive the vehicle in O/D, 3GR, and 2GR.





2. Check that kickdown occurs for O/D-3, 0/D-2, 0/D-1, 3-2, 3-1, 2-1, and that the shift points are as shown.