PROBLEM SYMPTOM CONFIRMATION
Try to reproduce symptoms based on the result of the customer problem analysis. If the problem is that the transaxle does not change gear ratios or changes ratios at the wrong engine speed, conduct the following road test referring to the speed variation chart and attempt to duplicate the problem symptoms.
ROAD TEST
CAUTION:
Strictly observe posted speed limits, traffic laws, and road conditions when performing the road test.
Note
This test must be conducted after checking and confirming that the engine is operating normally.
Perform this test while the CVT fluid temperature is between 50 to 100°C (122 to 212°F).
Perform the test with the A/C off.
Tech Tips
Lock-up control will not operate when the CVT fluid temperature is 40°C (104°F) or less and the vehicle speed is 60 km/h (37 mph) or less or when the CVT fluid temperature is 5°C (41°F) or less.
Lock-up control will not operate when the engine coolant temperature is 30°C (86°F) or less.
The lock-up OFF vehicle speed may vary depending on the electrical load and air conditioning and brake operations.
Keep a constant accelerator pedal angle to maintain the specified vehicle speed.
When kicking down with the accelerator pedal, read the engine speed immediately after the pedal is pushed down.
| Accelerator Pedal Position (Vehicle speed) |
|||||||
|---|---|---|---|---|---|---|---|
| Shift Lever Position/Range (Engine Speed) |
Kick-down (40 km/h) (25 mph) |
Kick-down (70 km/h) (43 mph) |
Kick-down (100 km/h) (62 mph) |
Constant Angle (40 km/h) (25 mph) |
Constant Angle (70 km/h) (43 mph) |
Constant Angle (100 km/h) (62 mph) |
Kick-down (70 km/h) (43 mph) |
| D (rpm) |
3400 to 4800 | 4400 to 5500 | 4800 to 5900 | 800 to 1300 | 1300 to 1700 | 1900 to 2400 | 3000 or more |
| S1 (rpm) |
3600 to 5000 | - | - | 3000 to 4550 | - | - | - |
| S2 (rpm) |
- | 5100 to 6200 | - | 2950 to 3400 | 5300 to 5800 | - | 5300 or more |
| S3 (rpm) |
- | - | 5200 to 6300 | 2200 to 2650 | 4000 to 4500 | 5000 to 6300 | 4000 or more |
| S4 (rpm) |
- | - | - | 1750 to 2200 | 3200 to 3700 | 4600 to 5100 | 3200 or more |
| S5 (rpm) |
- | - | - | 1350 to 1800 | 2500 to 3000 | 3650 to 4150 | 2500 or more |
| S6 (rpm) |
- | - | - | - | 1950 to 2450 | 2900 to 3400 | 1950 or more |
| S7 (rpm) |
- | - | - | - | 1600 to 2100 | 2350 to 2850 | 1600 or more |
| Accelerator Pedal Position (Vehicle speed) |
|||||||
|---|---|---|---|---|---|---|---|
| Shift Lever Position (Engine Speed) |
Kick-down (40 km/h) (25 mph) |
Kick-down (70 km/h) (43 mph) |
Kick-down (100 km/h) (62 mph) |
Constant Angle (40 km/h) (25 mph) |
Constant Angle (70 km/h) (43 mph) |
Constant Angle (100 km/h) (62 mph) |
Kick-down (70 km/h) (43 mph) |
| D (rpm) |
3400 to 4800 | 4400 to 5500 | 4800 to 5900 | 800 to 1300 | 1300 to 1700 | 1900 to 2400 | 3000 or more |
| S (rpm) |
3400 to 4800 | 4400 to 5500 | 4800 to 5900 | 2400 to 2850 | 3300 to 3800 | 3800 to 4400 | 3000 or more |
| B (rpm) |
3400 to 4800 | 4400 to 5500 | 4800 to 5900 | 3300 to 4000 | 4400 to 5100 | 5100 to 5700 | 3000 or more |
| Lock-up Condition (Accelerator Pedal Position) |
||
|---|---|---|
| Shift Lever Position (Vehicle Speed) |
Lock-up ON (5%) |
Lock-up OFF (0%) |
| D km/h (mph) |
8 to 28 (5 to 18) |
8 to 18 (5 to 11) |
| M km/h (mph) |
30 to 44 (19 to 27) |
22 to 28 (14 to 18) |
| Lock-up Condition (Accelerator Pedal Position) |
||
|---|---|---|
| Shift Lever Position (Vehicle Speed) |
Lock-up ON (5%) |
Lock-up OFF (0%) |
| D km/h (mph) |
8 to 28 (5 to 18) |
8 to 18 (5 to 11) |
| S km/h (mph) |
30 to 44 (19 to 27) |
22 to 28 (14 to 18) |
| B km/h (mph) |
30 to 44 (19 to 27) |
22 to 28 (14 to 18) |
D position test
Move the shift lever to D and fully depress the accelerator pedal. Check the following:
Check up-shift operation.
Check if the gear ratio changes during normal driving (average urban driving).
Check for abnormal noises and vibration.
Tech Tips
The check for the cause of abnormal noise and vibration must be done thoroughly as it could also be due to loss of balance in the differential, torque converter clutch, etc.
Check kick-down operation.
Check if the kick-down engine speeds are as specified in the speed variation chart.
Check for abnormal shock and slippage at kick-down.
Check the lock-up mechanism.
M position test (for Multi-mode Automatic Transmission)
Move the shift lever to M and check the following:
Check shift operation
When driving with the S7 gear selected (vehicle speed approximately 90 to 100 km/h (56 to 62 mph)), check that the engine braking effect operates in the S6 gear when the shift lever is moved to "-".
When driving with the S6 gear selected (vehicle speed approximately 70 to 80 km/h (43 to 50 mph)), check that the engine braking effect operates in the S5 gear when the shift lever is moved to "-".
When driving with the S5 gear selected (vehicle speed approximately 50 to 60 km/h (31 to 37 mph)), check that the engine braking effect operates in the S4 gear when the shift lever is moved to "-".
When driving with the S4 gear selected (vehicle speed approximately 40 to 50 km/h (25 to 31 mph)), check that the engine braking effect operates in the S3 gear when the shift lever is moved to "-".
When driving with the S3 gear selected (vehicle speed approximately 30 to 40 km/h (19 to 25 mph)), check that the engine braking effect operates in the S2 gear when the shift lever is moved to "-".
When driving with the S2 gear selected (vehicle speed approximately 20 to 30 km/h (12 to 19 mph)), check that the engine braking effect operates in the S1 gear when the shift lever is moved to "-".
S position test (except Multi-mode Automatic Transmission)
Move the shift lever to S and check the following:
Check shift operation
Check if the shift pattern changes in accordance with the S position pattern as specified in the speed variation chart.
Check for appropriate engine braking force while driving at approx. 40 km/h (24 mph) with the shift lever in S.
B position test (except Multi-mode Automatic Transmission)
Move the shift lever to B and check the following:
Check if the shift pattern changes in accordance with the B position pattern as specified in the speed variation chart.
Check for appropriate engine braking force while driving at approx. 40 km/h (24 mph) with the shift lever in B.
R position test
Move the shift lever to R and lightly depress the accelerator pedal. Check that the vehicle moves backward without any abnormal noise or vibration.
CAUTION:
Before conducting this test ensure that the test area is free from people and obstructions.
P position test
Stop the vehicle on an incline (more than 5°). Then move the shift lever to P and release the parking brake. Check that the parking lock pawl holds the vehicle in place.