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:
NOTICE:
Inspection | Procedure |
---|---|
Transmission Control Switch Test | With the vehicle stationary and the shift lever in D, move the shift lever to S and return it to D. Check that the meter display changes from D to the appropriate S gear and then back again. |
S Position Test | While driving with the shift lever in S, 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.
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(a) Gear change confirmation
(1) Connect the Techstream to the DLC3.
(2) Turn the engine switch on (IG).
(3) Enter the following menus: Powertrain / Transmission / Data List.
Powertrain > Transmission > Data List Tester Display |
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Vehicle Speed |
Coolant Temperature |
NT Sensor Speed |
A/T Oil Temperature No.1 |
Shift Status |
(4) Check that the transaxle shifts to each gear while gently accelerating to 85 km/h (53 mph) or higher.
HINT:
(b) Lock-up confirmation
(1) Connect the Techstream to the DLC3.
(2) Turn the engine switch on (IG).
(3) Enter the following menus: Powertrain / Transmission / Data List.
Powertrain > Transmission > Data List Tester Display |
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Vehicle Speed |
Engine Speed |
Coolant Temperature |
Accel Position from EFI |
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:
Vehicle Speed (Constant speed) | 85 km/h (53 mph) |
Shift Status | 8th |
Lock Up Status | ON |
HINT: