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Toyota Sienna Service Manual: For vehicles equipped with traction control (trac) system

Toyota Sienna Service Manual / Introduction / Repair instruction / Precaution / 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
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
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:

Operating via the Controller
Opening the main menu Press the button. The main menu is displayed. Selecting a menu Selecting menu items 1. Turn the Controller until the desired menu item is highlighted. 2. Press the Controller. Select a widget 1. Move the Controller to the right. 2. Select a widget. 3. Press the Controller. ...

Pressing Power Switch does not Turn on System
INSPECTION PROCEDURE 1 CHECK VEHICLE CONDITION Check that conditions in the cabin are not likely to cause condensation. HINT: This problem occurs when the cabin is humid and the temperature changes rapidly. This may produce condensation, resulting in a short circuit. OK: Condensation ...

Voice Recognition Difficulty
INSPECTION PROCEDURE 1 CHECK CONDITION Check if the system's voice recognition level is low by using only one particular voice. OK: System's voice recognition level is low with any voice. 2 CHECK MAP DISC Check that the map disc is not deformed or cracked. OK: No deformation ...

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