Road Test
ROAD TESTWarning:
^ When performing a road test, be aware of other vehicles, people, impediments to avoid an accident.
Note:
^ When the legal speed limit must be exceeded, use a chassis dynamometer instead of performing a road test.
Road Test Preparation
1. Inspect the engine coolant level.
2. Inspect the engine oil level.
3. Inspect the ATF level.
4. Inspect the idle speed and ignition timing in the P position.
5. Wait until the engine and transmission reach normal operating temperature.
Shift Diagram
D range (normal mode)
D Range Test
1. Perform road test preparation.
2. Shift the selector lever to the D range.
3. Accelerate with the throttle half and then wide open.
4. Verify that 1->2, 2->3, and 3->4 upshifts can be obtained. The shift points must be as shown in the table.
^ If there is any malfunction, inspect the TCM and AT.
5. Drive the vehicle in 4GR, 3GR, and 2GR and verify that kickdown occurs for 4->3, 3->2, 2->1 downshifts, and that the shift points are as shown in the table.
^ If there is any malfunction, inspect the TCM and AT.
6. Decelerate the vehicle and verify that engine braking effect is felt in 2GR, 3GR, and 4GR.
^ If there is any malfunction, inspect the TCM and AT.
7. Drive the vehicle and verify that TCC operation is obtained. The operation points must be as shown in the table.
^ If there is any malfunction, inspect the TCM and AT.
Shift point table
M Range Test
1. Perform road test preparation.
2. Shift the selector lever to M range.
3. Verify that 1->2, 2->3, and 3->4 upshifts and 4->3, 3->2, and 2->1 downshifts are obtained by manual shifting.
^ If there is any malfunction, inspect the TCM and AT.
4. Decelerate the vehicle and verify that 4->3, 3->2, and 3->1 downshifts are obtained. The shift points must be as shown in the table.
^ If there is any malfunction, inspect the TCM and AT.
5. Decelerate the vehicle and verify that engine braking effect is felt in all gears.
^ If there is any malfunction, inspect the TCM and AT.
6. Drive the vehicle and verify that TCC operation is obtained in 3GR and 4GR. The operation points must be as shown in the table.
^ If there is any malfunction, inspect the TCM and AT.
7. Drive the vehicle in 4GR, 3GR, and 2GR and verify that kickdown occurs for 4-3 and 3-2 downshifts, and that the shift points are as shown in the table.
^ If there is any malfunction, inspect the TCM and AT.
Vehicle speed at shift joint table
P Position Test
1. Shift into the P position on a gentle slope. Release the brake, and verify that the vehicle does not roll.
^ If there is any malfunction, inspect the AT.
Incorrect Gear Ratio (Slippage) Test
Note:
^ If a gear ratio is incorrect but is not detected accurately, it will not be output as a DTC. In order to be output, after shifting into each gear position, the gear position must be held while the vehicle is driven at a speed of 10 km/h (6.2 mph) or more for at least 7 s.
^ An incorrect gear ratio refers to a situation in which, due to clutch slippage in the AT, the input and output rotation of the AT differs from a certain value.
1. Perform road test preparation.
2. Perform the following steps.
1. Shift into the D range (1GR) and drive for 7 s or more.
2. Shift into the D range (2GR) and drive for 7 s or more.
3. Shift into the D range (3GR) and drive for 7 s or more.
4. Shift into the D range (4GR) and drive for 7 s or more.
3. Stop the vehicle.
4. Inspect for a DTC.
^ If any DTC is present, repair according to the inspection procedure for the applicable DTC.