Last Modified: 04-05-2023 6.11:8.1.0 Doc ID: RM10000000101L7
Model Year Start: 2017 Model: Sienna Prod Date Range: [08/2016 -           ]
Title: UA80F (AUTOMATIC TRANSMISSION / TRANSAXLE): AUTOMATIC TRANSAXLE SYSTEM: MANUAL SHIFTING TEST; 2017 - 2020 MY Sienna [08/2016 -        ]

MANUAL SHIFTING TEST

MANUAL SHIFTING TEST

HINT:

  • Using this test, it can be determined whether a problem is in an electrical circuit or if it is a mechanical problem in the transaxle.
  • If any abnormalities are found in the following test, the problem is in the transaxle itself.

(a) Disconnect the transmission wire connector.

HINT:

It is possible to deactivate the electrical shift control by disconnecting the transmission wire. The gears can then be changed mechanically with the shift lever.

(b) Drive the vehicle with the transmission wire connector disconnected. Move the shift lever to each position to check whether the gear changes as shown in the table below.

Shift Lever Position

Gear

P

P

R

R

D

5th

No Shift (Gears will not change)

(c) Connect the transmission wire connector.

(d) Clear the DTCs.

Click here 2017 - 2020 MY Sienna [08/2016 -        ]; UA80F (AUTOMATIC TRANSMISSION / TRANSAXLE): AUTOMATIC TRANSAXLE SYSTEM: DTC CHECK / CLEAR