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 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
CAUTION:
Strictly observe posted speed limits, traffic laws and road conditions when performing the road test.
NOTICE:
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, move the shift lever to "+" and "-". Check that the meter display changes accordingly. |
D Position Shift Test | While driving the vehicle normally, check that the transaxle 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.
Click here
(a) Shift schedule confirmation
(1) Connect the Techstream to the DLC3.
(2) Turn the engine switch on (IG).
(3) Enter the following menus: Powertrain / Engine / Data List.
Powertrain > Engine > Data List Tester Display |
---|
Vehicle Speed |
Coolant Temperature |
Throttle Sensor Position |
Shift Status |
(4) Check that the "Shift Status" changes in accordance with the "Vehicle Speed" as shown in the following table.
Shift Schedule Chart:
Throttle Sensor Position | 6% | ||||||
---|---|---|---|---|---|---|---|
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 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) | 30 to 40 km/h (19 to 25 mph) | 40 to 50 km/h (25 to 31 mph) | 65 to 75 km/h (40 to 47 mph) | 75 to 80 km/h (47 to 50 mph) |
NOTICE:
(b) Lock-up confirmation
(1) Connect the Techstream to the DLC3.
(2) Turn the engine switch on (IG).
(3) Enter the following menus: Powertrain / Engine / Data List.
Powertrain > Engine > Data List Tester Display |
---|
Vehicle Speed |
Engine Speed |
Coolant Temperature |
Throttle Sensor Position |
NT Sensor Speed |
A/T Oil Temperature No.1 |
Lock Up Status |
Shift Status |
(4) 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 Sensor Position | 6% |
Vehicle Speed | 80 km/h (50 mph) or more |
Shift Status | 8th gear |
Lock Up Status | ON |
HINT:
Lock-up prohibition conditions:
(c) Manual down-shift permission speed
(1) 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) | 8 to 7 | 7 to 6 | 6 to 5 | 5 to 4 | 4 to 3 | 3 to 2 | 2 to 1 |
---|---|---|---|---|---|---|---|
Vehicle Speed | 295 to 305 km/h (183 to 190 mph) | 240 to 250 km/h (149 to 155 mph) | 195 to 205 km/h (121 to 127 mph) | 160 to 170 km/h (99 to 106 mph) | 130 to 140 km/h (81 to 87 mph) | 80 to 95 km/h (50 to 59 mph) | 25 to 35 km/h (16 to 22 mph) |
(d) Shift schedule when throttle valve is fully open
Shift Schedule Chart:
Throttle Opening Angle | 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 55 km/h (28 to 34 mph) | 80 to 90 km/h (50 to 56 mph) | 125 to 140 km/h (78 to 87 mph) | 160 to 175 km/h (99 to 109 mph) | 195 to 205 km/h (121 to 127 mph) | 245 to 255 km/h (152 to 158 mph) | 305 to 310 km/h (190 to 193 mph) |
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