Last Modified: 04-05-2023 |
6.11:8.1.0 |
Doc ID: RM1000000018BOQ |
Model Year Start: 2018 |
Model: Sienna |
Prod Date Range: [11/2017 -
] |
Title: UA80E (AUTOMATIC TRANSMISSION / TRANSAXLE): AUTOMATIC TRANSAXLE SYSTEM: ROAD TEST; 2018 - 2020 MY Sienna [11/2017 - ] |
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:
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Be sure to inspect and adjust the engine before performing these tests.
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Perform the road test with the engine coolant temperature between 60 and 100°C (140 and 212°F) and the ATF temperature between 50 and 100°C (122 and 212°F).
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Perform these tests with the air conditioning and cruise control off.
Inspection
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Procedure
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Transmission Control Switch Test
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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.
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S Position Test
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While driving with the shift lever in S, move the shift lever to "+" and "-". Check that the meter display changes accordingly.
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D Position Shift Test
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While driving the vehicle normally, check that the transaxle shifts up and down through each gear properly.
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Lock-up Function
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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.
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P Position Test
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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.
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Abnormal Noise and Vibration
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Check for abnormal noise and vibration while driving the vehicle forward and backward, and during shift operations.
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Fluid Leakage
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After performing all other road test inspections, check for fluid leakage.
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