Road Test [10/2017 - 09/2018]
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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, shift down, or the shift point is too high or too low, conduct the following road test referring to the automatic shift schedule and simulate the problem symptoms.
- ROAD TEST WARNING:
- Strictly obey all traffic rules and regulations.
- Do not drive the vehicle with the Techstream cable contacting the pedals, shift lever or steering wheel.
- Driving the wheel with the Techstream cable 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.
NOTE:- Be sure to inspect and adjust the engine before performing these tests.
- Perform the road test with the engine coolant temperature 60°C (140°F) or higher 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 gear and then back again. M Position Test While driving with the shift lever in M, operate the shift paddle switch to "+" and "-". Check that the meter display changes accordingly. 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 [10/2017 - ]
- 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 +/- 1% Shift Status
(Shift Lever in D)1st to 2nd 2nd to 3rd 3rd to 4th 4th to 5th 5th to 6th 6th to 7th 7th to 8th Vehicle Speed 5 to 10 km/h
(3 to 6 mph)5 to 15 km/h
(3 to 9 mph)15 to 25 km/h
(9 to 16 mph)25 to 35 km/h
(16 to 22 mph)35 to 40 km/h
(22 to 25 mph)40 to 50 km/h
(25 to 31 mph)55 to 65 km/h
(34 to 40 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 Techstream 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 +/- 1% Vehicle Speed 80 km/h (50 mph) or more Shift Status 8th 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)
- D3, D2 or D1 range is selected
- Throttle valve is filly closed
- Stop light switch assembly 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)M8 to M7 M7 to M6 M6 to M5 M5 to M4 M4 to M3 M3 to M2 M2 to M1 Vehicle Speed 275 to 290 km/h
(171 to 180 mph)220 to 235 km/h
(137 to 146 mph)175 to 190 km/h
(109 to 118 mph)145 to 160 km/h
(90 to 99 mph)110 to 125 km/h
(68 to 78 mph)70 to 80 km/h
(43 to 50 mph)35 to 45 km/h
(22 to 28 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 accelerator position is fully open
Shift Schedule Chart
Accelerator Position Fully Open Shift Status
(Shift Lever in D)1st to 2nd 2nd to 3rd 3rd to 4th 4th to 5th 5th to 6th 6th to 7th 7th to 8th Vehicle Speed 45 to 60 km/h
(28 to 37 mph)80 to 90 km/h
(50 to 56 mph)125 to 140 km/h
(78 to 87 mph)150 to 165 km/h
(93 to 103 mph)180 to 195 km/h
(112 to 121 mph)225 to 240 km/h
(140 to 149 mph)275 to 290 km/h
(171 to 180 mph)