Toyota Sienna Service Manual: Removal
1. PRECAUTION
CAUTION: Be sure to read "PRECAUTION" thoroughly before servicing.
2. DISCONNECT CABLE FROM NEGATIVE BATTERY TERMINAL
CAUTION: Wait for 90 seconds after disconnecting the cable to prevent the airbag working.
3. PLACE FRONT WHEELS FACING STRAIGHT AHEAD
4. REMOVE STEERING WHEEL NO.3 COVER LOWER
5. REMOVE STEERING WHEEL NO.2 COVER LOWER
6. REMOVE STEERING PAD
7. REMOVE STEERING WHEEL ASSEMBLY
8. REMOVE STEERING COLUMN COVER
9. REMOVE GLOVE COMPARTMENT DOOR ASSEMBLY
10. REMOVE INSTRUMENT PANEL BOX NO.2
11. DISCONNECT FRONT PASSENGER AIRBAG ASSEMBLY CONNECTOR
- Disconnect the connector from the front passenger airbag assembly.
NOTICE: When handling the airbag connector, take care not to damage the airbag wire harness.
12. REMOVE INSTRUMENT PANEL SUB-ASSEMBLY
13. REMOVE FRONT PASSENGER AIRBAG ASSEMBLY
- Remove the 2 screws.
- Release the front side wall of the airbag door from the hook by slightly deflecting it and roll the front passenger airbag assembly rearward.
- Release the rear side wall of the airbag door from the other hook and remove the front passenger airbag assembly.
On-vehicle inspection
1. INSPECT FRONT PASSENGER AIRBAG ASSEMBLY
(VEHICLE NOT INVOLVED IN COLLISION)
Perform a diagnostic system check.
With the front passenger airbag assembly installed
on the veh ...
Installation
1. INSTALL FRONT PASSENGER AIRBAG ASSEMBLY
Install the front passenger airbag assembly with the
2 screws.
2. INSTALL INSTRUMENT PANEL SUB-ASSEMBLY
3. CONNECT FRONT PASSENGER AIRBAG ...
Other materials:
Back-up Power Source Circuit
DESCRIPTION
This is the back-up power source for the A/C amplifier. Power is supplied
even when the ignition switch is
off and is used for diagnostic trouble code memory, etc.
WIRING DIAGRAM
INSPECTION PROCEDURE
1 INSPECT FUSE (ECU-B)
(a) Remove the ECU-B fuse from the engine room juncti ...
Perform zero point calibration of yaw rate and deceleration sensor (when
using sst check wire)
NOTICE:
While obtaining the zero point, do not vibrate the
vehicle by tilting, moving or shaking it and keep it
in a stationary condition. (Do not turn the ignition
switch to the ON position.)
Be sure to do this on a level surface (with an
inclination of less than 1 %).
(a) Proc ...
Rear Occupant Classification Sensor RH Circuit
Malfunction
DTC B1783 Rear Occupant Classification Sensor RH Circuit
Malfunction
DESCRIPTION
The rear occupant classification sensor RH circuit consists of the occupant
classification ECU and the
rear occupant classification sensor RH.
DTC B1783 is recorded when a malfunction is detected in the rear oc ...
