Road Test [11/2017 - 10/2018]
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- PROBLEM SYMPTOM CONFIRMATION
- Based on the result of the customer problem analysis, try to reproduce the symptoms. If the problem is that the transmission does not shift up or down, or that the shift point is too high or too low, conduct the following road test referring to the automatic shift schedule and attempt to duplicate the problem symptoms.
- ROAD TEST WARNING:NOTE:
- Be sure to inspect and adjust the engine before performing these tests.
- Perform the road test with the engine coolant temperature between 60 and 100°C (140 and 212°F) and the ATF temperature between 40 and 110°C (104 and 230°F).
- Perform these tests with the air conditioning and cruise control off.
Inspection Procedure Transmission Control Switch Test With the vehicle stationary and the shift lever in D, move the shift lever to M and return it to D. Check that the meter display changes from D to the appropriate M range and then back again. M Position Test Drive the vehicle with the shift lever in M, and move the shift lever to "+" and "-". Check that the meter display changes between M ranges properly. D Position Shift Test While driving the vehicle normally, check that the transmission shifts up and down through each gear properly. Lock-up Function While driving on a level surface at a constant speed in the lock-up range with the shift lever in D, lightly depress the accelerator pedal and check that the engine speed does not change abruptly. P Position Test Stop the vehicle on an incline (approximately 5° or more). Then move the shift lever to P and release the parking brake. Check that the parking lock pawl holds the vehicle in place. Abnormal Noise and Vibration Check for abnormal noise and vibration while driving the vehicle forward and backward, and during shift operations. Fluid Leakage After performing all other road test inspections, check for fluid leakage. HINT:
When checking for DTCs after a repair, drive the vehicle according to the monitor drive pattern.
Refer to MONITOR DRIVE PATTERN [11/2017 - ]
- Shift schedule confirmation
- Connect the Techstream to the DLC3.
- Turn the engine switch on (IG).
- Enter the following menus: Powertrain / Transmission / Data List.
Powertrain > Transmission > Data List
Tester Display Vehicle Speed Coolant Temperature Throttle Position Sensor No. 1 Voltage % A/T Oil Temperature No. 1 Shift Status - Check that the "Shift Status" changes in accordance with the "Vehicle Speed" as shown in the following table.
Shift Schedule Chart
Throttle Position Sensor No. 1 Voltage % 6% Shift Status 1st to 2nd 2nd to 3rd 3rd to 4th 4th to 5th 5th to 6th Vehicle Speed 10 to 15 km/h
(6 to 9 mph)15 to 25 km/h
(9 to 16 mph)25 to 35 km/h
(16 to 22 mph)35 to 45 km/h
(22 to 28 mph)60 to 70 km/h
(37 to 43 mph)NOTE:- All vehicle speeds indicated in the above table are actual values. Therefore, if checking a shift point with a chassis dynamometer, keep in mind that there is a margin of error in the chassis dynamometer indication.
- If checking a shift point against the vehicle speed indicated on the speedometer, remember to consider the speedometer correction rate and margin of error in the tester indication.
- Lock-up confirmation
- Connect the Techstream to the DLC3.
- Turn the engine switch on (IG).
- Enter the following menus: Powertrain / Transmission / Data List.
Powertrain > Transmission > Data List
Tester Display Vehicle Speed Engine Speed Coolant Temperature Throttle Position Sensor No. 1 Voltage % NT Sensor Speed A/T Oil Temperature No. 1 Lock Up Status Shift Status - When the following conditions are met, check that the difference between "Engine Speed" and "NT Sensor Speed" is 50 rpm or less.
Lock-up Schedule
Throttle Position Sensor No. 1 Voltage % 6% Vehicle Speed 80 km/h (50 mph) or more Shift Status 6th gear Lock Up Status ON HINT:
Lock-up prohibition conditions:
- A/T oil temperature is less than 20°C (68°F)
- Engine coolant temperature is less than 50°C (122°F)
- Vehicle is being driven in 1st to 4th gear with the shift lever in D
- Throttle valve is fully closed
- Stop light switch signal is on
- Manual down-shift permission speed
- Manual down-shift is permitted for each shift status when the vehicle speed is below the corresponding range shown in the following table.
Manual Down-shift Permission Speed Chart
Shift Status
(Shift Lever in M)M6 to M5 M5 to M4 M4 to M3 M3 to M2 M2 to M1 Vehicle Speed 260 to 280 km/h
(162 to 174 mph)205 to 220 km/h
(127 to 137 mph)145 to 160 km/h
(90 to 99 mph)95 to 105 km/h
(59 to 65 mph)45 to 55 km/h
(28 to 34 mph)
- Manual down-shift is permitted for each shift status when the vehicle speed is below the corresponding range shown in the following table.
- Shift schedule when throttle valve is fully open
Shift Schedule Chart
Throttle Position Sensor No. 1 Voltage % Fully Open Shift Status
(Shift Lever in D)1st to 2nd 2nd to 3rd 3rd to 4th 4th to 5th 5th to 6th Vehicle Speed 55 to 65 km/h
(34 to 40 mph)95 to 110 km/h
(59 to 68 mph)140 to 160 km/h
(87 to 99 mph)190 to 205 km/h
(118 to 127 mph)260 to 280 km/h
(162 to 174 mph)