K313 (CVT): CONTINUOUSLY VARIABLE TRANSAXLE SYSTEM: ROAD TEST; 2020 MY Corolla Corolla Hatchback [01/2019

Last Modified: 05-13-2024	6.11:8.1.0	Doc ID: RM100000001GYS5
Model Year Start: 2020	Model: Corolla Hatchback	Prod Date Range: [01/2019 - 03/2019]
Title: K313 (CVT): CONTINUOUSLY VARIABLE TRANSAXLE SYSTEM: ROAD TEST; 2020 MY Corolla Corolla Hatchback [01/2019 - 03/2019]

ROAD TEST

PROBLEM SYMPTOM CONFIRMATION

(a) Based on the result of the customer problem analysis, try to reproduce the symptoms. 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 while 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.
Do not drive the vehicle with the cable of the Techstream contacting the pedals, shift lever or steering wheel.
Driving the vehicle with the cable of the Techstream contacting these areas could impede vehicle control, resulting in a serious accident.

Do not operate the Techstream while driving the vehicle.
Operating the Techstream while driving the vehicle will prevent you from paying sufficient attention to vehicle surroundings, and could result in a serious accident.

NOTICE:

This test must be performed after checking and confirming that the engine is normal.
Perform this test with the CVT fluid temperature between 50 and 100°C (122 and 212°F).
Perform this test with the air conditioning off.

HINT:

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 electrical load, and air conditioning and brake operation.
Keep a constant accelerator pedal opening angle to maintain the specified vehicle speed.
When fully depressing the accelerator pedal, read the engine speed immediately after the pedal is fully depressed.

Speed Variation Chart:

w/o SPORT Switch:

Shift Lever Position

Accelerator Pedal Position

(Vehicle Speed)

Fully Depressed

(Before 1st up-shift)

Fully Depressed

(Before 2nd up-shift)

Constant Position

(40 km/h (25 mph))

Constant Position

(70 km/h (43 mph))

Constant Position

(100 km/h (62 mph))

Fully Depressed

(Accelerating from 70 km/h (43 mph))

6000 to 6600 rpm

6200 to 6600 rpm

1000 to 1400 rpm

1000 to 1500 rpm

1400 to 1900 rpm

3000 rpm or more

6000 to 6600 rpm

6200 to 6600 rpm

2200 to 2700 rpm

3000 to 3600 rpm

3600 to 4200 rpm

3000 rpm or more

w/ SPORT Switch:

Shift Lever Position	Drive Mode	Accelerator Pedal Position (Vehicle Speed)
Shift Lever Position	Drive Mode	Fully Depressed (Before 1st up-shift) *1	Fully Depressed (Before 2nd up-shift) *2	Constant Position (40 km/h (25 mph)) *4	Constant Position (70 km/h (43 mph)) *5	Constant Position (100 km/h (62 mph)) *3	Fully Depressed (Accelerating from 70 km/h (43 mph)) *6
D	Normal	6000 to 6600 rpm	6200 to 6600 rpm	1000 to 1400 rpm	1000 to 1500 rpm	1400 to 1900 rpm	3000 rpm or more
D	Sport	6000 to 6600 rpm	6200 to 6600 rpm	1300 to 1700 rpm	1700 to 2200 rpm	2200 to 2700 rpm	3000 rpm or more
B	Normal	6000 to 6600 rpm	6200 to 6600 rpm	2200 to 2700 rpm	3000 to 3600 rpm	3600 to 4200 rpm	3000 rpm or more
B	Sport	6000 to 6600 rpm	6200 to 6600 rpm	2200 to 2700 rpm	3000 to 3600 rpm	3600 to 4200 rpm	3000 rpm or more

Lock-up Schedule:

Shift Lever Position

Lock-up Condition

(Accelerator Pedal Opening Angle)

Lock-up ON

(10%)

Lock-up OFF

(0%)

5 to 30 km/h

(3 to 19 mph)

5 to 30 km/h

(3 to 19 mph)

HINT:

Lock-up OFF by lock-up control can be confirmed when the lock-up ON conditions change to lock-up OFF conditions as shown in the following table.
The flex lock-up control condition cannot be checked by reading the Data List item Lock Up. Confirm the lock-up condition by checking the operation of the shift solenoid valve SC and shift solenoid valve SL.

Lock-up ON Condition:	Lock-up OFF Condition:
Shift solenoid valve SC: OFF	Shift solenoid valve SC: ON
Shift solenoid valve SL: ON	Shift solenoid valve SL: ON (No change)

(a) D position test

Move the shift lever to D and check the following:

(1) Check if the gear ratio changes during normal driving (average urban driving).

With the vehicle stopped, fully depress the accelerator pedal and check the engine speed at the shift timing listed in *1 and *2 in the speed variation chart.
With the vehicle stopped, depress the accelerator pedal to a constant intermediate position and check the engine speed when the vehicle reaches the vehicle speed listed in *3 in the speed variation chart.
Release the accelerator pedal and check the engine speed when the vehicle decelerates to the vehicle speed listed in *4 in the speed variation chart.
Depress the accelerator pedal to a constant intermediate position again and check the engine speed when the vehicle reaches the vehicle speed listed in *5 in the speed variation chart.
Fully depress the accelerator pedal and check the engine speed as the vehicle accelerates from the vehicle speed listed in *6 in the speed variation chart.

(2) Check for abnormal noises and vibration.

HINT:

Inspections for the cause of abnormal noise and vibration must be done thoroughly as they could also be due to loss of balance in the differential, torque converter clutch, etc.

(3) Check for abnormal shock and slippage at kick-down.

(4) Check the lock-up mechanism.

(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, make sure that the test area is free from people and obstructions.

Stop the vehicle on an incline (approximately 5° or more). Move the shift lever to P and release the parking brake. Check that the parking lock pawl holds the vehicle in place.