A140L Transaxle

CAUTION: Perform the test at normal operating fluid temperature (50 - 80 °C or 122 - 176 °F).

1. D RANGE TEST




Shift into the D range, and while driving with the accelerator pedal held constant at specified point (50 % and 100 %) and OD switch ON, check on the following points.
a. At each of the above pedal opening, check to see that 1 -> 2, 2 -> 3 and 3 -> OD up-shift take place and also that the shift points conform to those shown on the automatic shift diaphragm.

EVALUATION
1. If there is no 1 -> 2 up-shift:
- Governor valve is defective
- 1 -> 2 shift valve is stuck

2. If there is no 2 -> 3 up-shift:
- 2-3 shift valve is stuck

3. If there is no 3 -> OD up-shift (accelerator pedal opening 50 %):
- OD shift valve is stuck
- OD solenoid is defective

4. If the shift point is defective:
- Throttle cable is out-of-adjustment
- Throttle valve, 1 -> 2 shift valve, 2 -> 3 shift valve, 3 -> OD shift valve etc., are defective.




b. In the same manner, check the shock and the slip at 1 -> 2, 2 ->3 and 3 -> OD up-shifts.

EVALUATION
If the shock is severe:
- Line pressure is too high
- Accumulator is defective
- Check ball is defective




c. Run at the D range 3rd gear or OD gear and check for abnormal noise and vibration.

NOTE: Check for cause of abnormal noise and vibration must be made with extreme care as they could also be due to unbalance in drive shaft, differential, tire, torque converter, etc. or bending rigidity, etc., in the power train.




d. While running in the D range 2nd, 3rd gears and OD, check to see that the possible kick-down vehicle speed limits for 2 -> 1, 3 -> 1, 3 -> 2, OD -> 3 and OD -> 2 kick-downs conform to those indicated on the automatic shift diagram.
e. Check for abnormal shock and slip at kick-down.




f. While running in the D range 3rd gear or OD gear, shift to 2 and L ranges and check the engine braking effect at each of these ranges.

EVALUATION
1. If there is no engine braking effect at 2 range:
- Second coast brake is defective

2. If there is no engine braking effect at L range:
- First and reverse is defective




g. While running in the D range, release your foot from the accelerator pedal and shift into L range. Then check to see if OD -> 3 and 3 -> 2 and 2 -> 1 down-shift points conform to those indicated on the automatic shift diagram.




2. INSPECT LOCK-UP MECHANISM
a. Warm up the coolant and ATF.
b. Connect a tachometer to the 11 A terminal.
c. Drive at around 70 km/h (43 mph).
d. Lightly depress the accelerator pedal and read the tachometer. If there is a big jump in engine rpm, there is no lock-up.

3. 2 RANGE TEST




a. Shift to 2 range and run with the accelerator pedal opening at 50 % and 100 % respectively. Then check the 1 2 up-shift points at each of the accelerator pedal openings to see that it conforms to those indicated on the automatic shift diagram.




b. While running in the 2 range, 2nd gear, release the accelerator pedal and check the engine braking effect.




c. Perform a kick-down from the 2 range and check the possible 2 -> 1 kick-down vehicle speed limit to see if it conforms to that indicated on the automatic shift diagram.




d. Check for abnormal noise at acceleration and deceleration, and for shock at up-shift and down-shift.

4. L RANGE TEST




a. While running in the L range, check to see that there is no up-shift to 2nd gear.




b. While running in L range, release the accelerator pedal and check the engine braking effect.




c. Check for abnormal noise at acceleration and deceleration.




5. R RANGE TEST
Shift into R range and while running at full throttle and check for slipping.




6. P RANGE TEST
Stop the vehicle on a gradient (more than 9 %) and, after shifting into P range, release the parking brake. Then check to see that the parking lock paw holds the vehicle in place.