Toyota Sienna Service Manual: On-vehicle inspection
1. FRONT SEAT SIDE AIRBAG ASSEMBLY (VEHICLE NOT INVOLVED IN COLLISION)
- Perform a diagnostic system check.
- With the front seat side airbag assembly installed on the vehicle, perform a visual check. If there are any defects as mentioned below, replace the front seatback assembly with a new one: Cuts, minute cracks or marked discoloration on the front seatback assembly around the front seat side airbag assembly.
2. FRONT SEAT SIDE AIRBAG ASSEMBLY (VEHICLE INVOLVED IN COLLISION AND AIRBAG HAS NOT DEPLOYED)
- Perform a diagnostic system check.
- With the front seat side airbag assembly removed from the vehicle, perform a visual check. If there are any defects as mentioned below, replace the front seat side airbag assembly with a new one:
- Cuts, minute cracks or marked discoloration on the front seat side airbag assembly.
- Cracks or other damage to the wire harness or connector.
CAUTION: Be sure to follow the correct removal and installation procedures.
Disposal
HINT:
Use the same procedures for the RH side and LH side.
The procedures listed below are for the LH side.
When scrapping a vehicle equipped with the SRS or
disposing of t ...
Other materials:
Master Cylinder Pressure Sensor Malfunction
DTC C1246/46 Master Cylinder Pressure Sensor Malfunction
DESCRIPTION
Master cylinder pressure sensor is connected to the skid control ECU in the
actuator.
INSPECTION PROCEDURE
1 READ VALUE ON INTELLIGENT TESTER (MASTER CYLINDER PRESSURE SENSOR)
(a) Connect the intelligent tester to the DL ...
ECU Power Source Circuit
DESCRIPTION
This circuit provides power to operate the theft deterrent (warning) ECU.
WIRING DIAGRAM
INSPECTION PROCEDURE
1 INSPECT FUSE (ECU-B)
Remove the ECU-B fuse from the engine room J/B.
Measure the resistance.
Standard resistance:
Below 1 Ω
2 CHECK INSTRUMENT PANEL ...
Hydraulic test
1. Perform hydraulic test
(a) Measure the line pressure.
NOTICE:
Perform the test at the normal operating ATF
(Automatic Transmission Fluid) temperature:
50 to 80°C (122 to 176°F).
The line pressure test should always be
carried out in pairs. One technician should
...
