Last Modified: 04-05-2023 6.11:8.1.0 Doc ID: RM100000000YIYA
Model Year Start: 2017 Model: Sienna Prod Date Range: [08/2016 - 11/2017]
Title: UA80E (AUTOMATIC TRANSMISSION / TRANSAXLE): AUTOMATIC TRANSAXLE SYSTEM: ROAD TEST; 2017 MY Sienna [08/2016 - 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:

  • 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 50 and 100°C (122 and 212°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 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.

Click here 2017 - 2020 MY Sienna [08/2016 -        ]; UA80E (AUTOMATIC TRANSMISSION / TRANSAXLE): AUTOMATIC TRANSAXLE SYSTEM: MONITOR DRIVE PATTERN

(a) Shift schedule confirmation

(1) Connect the Techstream to the DLC3.

(2) Turn the ignition switch to ON.

(3) Enter the following menus: Powertrain / Engine / Data List.

(4) Check that the "Shift Status" changes in accordance with the "Vehicle Speed" as shown in the following table.

Shift Schedule Chart:

Accelerator Position

14+/-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 15 km/h

(3 to 9 mph)

15 to 30 km/h

(9 to 19 mph)

25 to 35 km/h

(16 to 22 mph)

30 to 40 km/h

(19 to 25 mph)

35 to 50 km/h

(22 to 31 mph)

45 to 55 km/h

(28 to 34 mph)

60 to 70 km/h

(37 to 43 mph)

NOTICE:

  • 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.

(b) Lock-up confirmation

(1) Connect the Techstream to the DLC3.

(2) Turn the ignition switch to ON.

(3) Enter the following menus: Powertrain / Engine / Data List.

(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

14+/-1%

Lock Up Status

ON

Vehicle Speed

Shift Status

8th gear

80 km/h (50 mph) or more

HINT:

Lock-up prohibition conditions:

  • Engine coolant temperature is less than 20°C (68°F)
  • ATF temperature is less than 20°C (68°F)
  • Throttle valve is fully closed
  • Stop light switch is on

(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 S)

8 to 7

7 to 6

6 to 5

5* to 4*

4 to 3

3 to 2

2 to 1

Vehicle Speed

350 to 365 km/h*

(217 to 227 mph*)

280 to 295 km/h*

(174 to 183 mph*)

225 to 240 km/h*

(140 to 149 mph*)

185 to 200 km/h*

(112 to 124 mph*)

130 to 145 km/h

(81 to 90 mph)

85 to 95 km/h

(53 to 59 mph)

40 to 50 km/h

(25 to 31 mph)

HINT:

*: Speed limit activates

(d) Shift schedule when throttle valve is fully open

Shift Schedule Chart:

Accelerator Pedal

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

35 to 45 km/h

(22 to 28 mph)

75 to 90 km/h

(47 to 56 mph)

125 to 140 km/h

(78 to 87 mph)

175 to 190 km/h*

(109 to 118 mph*)

215 to 230 km/h*

(134 to 143 mph*)

265 to 280 km/h*

(165 to 174 mph*)

335 to 350 km/h*

(208 to 217 mph*)

HINT:

*: Speed limit activates