Toyota Sienna Service Manual: Precaution

Toyota Sienna Service Manual / Supplemental restraint system / Occupant classification system / Precaution

1. INSPECTION PROCEDURE FOR VEHICLE INVOLVED IN ACCIDENT

Perform the zero point calibration and sensitivity check if any of the following conditions occur.

The occupant classification ECU is replaced.
Accessories (seatback tray and seat cover, etc.) are installed.
The front passenger seat is removed from the vehicle.
The passenger airbag ON/OFF indicator ("OFF") comes on when the front passenger seat is not occupied.
The vehicle is brought to the workshop for repair due to an accident or a collision.

NOTICE: When an accident vehicle is brought into the workshop for repair, check the flatness of the body side that is equipped with the passenger seat. If the flatness is not within +- 3.0 mm (0.118 in.), adjust it to the specified range.

PARTS LOCATION

PARTS LOCATION

SYSTEM DIAGRAM

SYSTEM DIAGRAM

Occupant classification system

...

System description

1. DESCRIPTION OF OCCUPANT CLASSIFICATION SYSTEM GENERAL DESCRIPTION. In the occupant classification system, the occupant classification ECU calculates the weight of the occu ...

Other materials:

Mute Signal Circuit between Radio and Navigation Assembly and Television Display Assembly
DESCRIPTION The radio and navigation assembly controls the volume according to the MUTE signal from the television display assembly. The MUTE signal is sent to reduce noise and a popping sound generated when switching the mode, etc. If there is an open in the circuit, noise can be heard ...

CD Abnormal/ Excess Current/ Tray Insertion / Ejection Error
DTC 63-44 CD Abnormal DTC 63-48 Excess Current DTC 63-50 Tray Insertion / Ejection Error DESCRIPTION DTC No. DTC Detection Condition Trouble Area 63-44 Operation error in the CD mechanism Radio and navigation assembly 63-48 Excess current is pr ...

Absence of Registration Unit/ No Response for Connection Check/ Last Mode Error/ No Response Against ON / OFF Command/ Mode Status Error/ Slave Reset
DESCRIPTION HINT: *1: Even if no fault is present, this trouble code may be stored depending on the battery condition or engine start voltage. *2: If the power connector is disconnected after the engine starts, this code is stored after 180 seconds. *3: If the ...