Toyota Sienna Service Manual: How to proceed with troubleshooting

Check and replace ecu

NOTICE: • The connector should not be disconnected from the ECU. Perform the inspection from the backside of the connector on the wire harness side. • When no measuring condition is s ...

Operation flow

HINT: Perform troubleshooting in accordance with the procedures below. The following is an outline of basic troubleshooting procedures. Confirm the troubleshooting procedures for the circuit you a ...

Other materials:

Diagnosis system
1. DESCRIPTION  When troubleshooting a vehicle with the diagnosis system, the only difference from the usual troubleshooting procedure is connecting the intelligent tester to the vehicle and reading various data output from the vehicle's clearance warning ECU. The clearance warn ...

Installation
1. INSTALL SLIDING ROOF HOUSING ASSEMBLY Install the housing with the 6 nuts. Install the 4 brackets with the 8 bolts. Connect the 4 hoses and drive gear connector. 2. ADJUST SLIDING ROOF GLASS SUB-ASSEMBLY Check for a difference in levels between the sliding roof (roof glass) a ...

Removal
1. Drain automatic transaxle fluid (a) Remove the drain plug, gasket and drain ATF. (b) Install a new gasket and the drain plug. Torque: 49 N*m (500 kgf*cm, 36 ft.*lbf) 2. Drain transfer oil (for 4wd) Hint: (see page tf-8) 3. Remove front wheel 4. REMOVE FRONT AXLE HUB LH NUT (a) Us ...