Toyota Sienna Service Manual: Manual shifting test
1. Perform manual shifting test
- With this test, it can be determined whether the trouble occurs in the electrical circuit or 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 connector of the transmission wire.
(B) drive with the transmission wire disconnected.
Shifting the shift lever in the order of l, 2, 3, 4 and d position to check whether the shifting condition changes the table below.
When driving with the transmission wire disconnected, the shift lever position is in l or 2, the gear position is held in 3rd and the shift lever position is in 3, 4 or d, the gear position is held in 4th. However, when the shift position is in r or p, the operation is same as usual
(C) connect the connector of the transmission wire.
(D) clear the dtc (see page ax-27).
Hydraulic test1. Perform hydraulic test (a) Measure the line pressure. NOTICE: Perform the test at the normal operating ATF (Automatic Transmission Fluid) temperature: 50 to 80°C (122 to 1 ...
Initialization1. RESET MEMORY NOTICE: Perform the RESET MEMORY (AT initialization) when replacing the automatic transaxle assembly, engine assembly or ECM. The RESET MEMORY can be performed ...
Driving the vehicle
The following procedures should be observed to ensure safe driving: Starting the engine Driving With the brake pedal depressed, shift the shift lever to D. Release the parking brake.