Toyota Sienna Service Manual: For vehicles equipped with traction control (trac) system
When using a 2-wheel drum tester such as a speedometer tester or chassis dynamometer, etc., or jacking up the front wheels and driving the wheels, always push in the TRAC cut ("TRAC OFF") switch and turn the TRAC system OFF.
FOR VEHICLES EQUIPPED WITH TRACTION CONTROL (TRAC) SYSTEM
(a) Confirm TRAC system is OFF
(1) Press the TRAC cut ("TRAC OFF") switch.
(2) Check that the TRAC OFF indicator light comes on when the TRAC system is turned OFF by the TRAC cut switch.
HINT:
The SLIP indicator light should always operate right after the engine is restarted.
(3) Begin measurements.
(4) Press the TRAC cut switch to turn the TRAC to the operative mode and check that the TRAC OFF indicator light goes off.
HINT: The SLIP indicator light blinks when the TRAC system in operating.
The SLIP indicator light should always operate right after the engine is
restarted.
When servicing full-time 4wd vehicles
The full-time 4WD SIENNA is equipped with the open
center differential system.
If incorrect preparations or test procedures are used, the
test will not only be unsuccessful, but may be dangerous
...
For vehicles equipped with vehicle stability control (vsc) system
(a) Notices when using drum tester
Notices when using drum tester.
(1) When using a drum tester, be sure to start the
engine with the ignition switch OFF, and connect
SST to the terminals TS ...
Other materials:
Outside vehicle
General maintenance
Check the parts of the vehicle described below on a daily
basis. Performing maintenance checks on the vehicle is the
owner's responsibility. The owner may take the vehicle to a
service center but it is recommended that the owner perform
the checks.
In most cases, special ...
ABS Warning Light Remains ON
DESCRIPTION
If any of the following is detected, the ABS warning light remains on.
The skid control ECU connectors are disconnected from the skid control
ECU.
There is a malfunction in the skid control ECU internal circuit.
There is an open in the harness between the combination meter an ...
Removal
1. REMOVE BATTERY
2. REMOVE AIR CLEANER ASSEMBLY
HINT:
(See page EM-26)
3. SEPARATE TRANSMISSION CONTROL CABLE ASSEMBLY
(a) Remove the nut from the control shaft lever.
(b) Disconnect the control cable from the control shaft
lever.
(c) Remove the clip and disconnect the control cab ...
