Toyota Sienna Service Manual: How to proceed with troubleshooting
The intelligent tester can be used in steps 4, 6, 8 and 9.
1 VEHICLE BROUGHT TO WORKSHOP
2 CUSTOMER PROBLEM ANALYSIS
3 PASSENGER AIRBAG ON/OFF INDICATOR CHECK
4 DTCs CHECK (Present and Past DTCs)
- Check for DTCs.
Result
5 DTCs CHART
6 CIRCUIT INSPECTION
7 REPAIR
8 CLEAR DTCs (Present and Past DTCs)
- Clear DTCs
9 DTCs CHECK (Present and Past DTCs)
- Check for DTCs.
Result
10 SYMPTOM SIMULATION
- Check the passenger airbag ON/OFF indicator condition.
Result
11 CONFIRMATION TEST
END
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 ...
Initialization
1. ZERO POINT CALIBRATION
NOTICE:
Make sure that the front passenger seat is not
occupied before performing the operation.
HINT:
Perform the zero point calibration and sensitivity check if
any ...
Other materials:
Disassembly
1. REMOVE FRONT DISC BRAKE BUSH DUST BOOT
(a) Using soft jaws on the vise, hold the front disc brake
cylinder mounting LH in the vise through aluminum
plates.
(b) Using a screwdriver and hammer, remove the 2
front disc brake bush dust boots from the front disc
brake cylinder mounting LH. ...
Passenger Airbag ON/OFF Indicator Circuit
Malfunction
DTC B1152/28 Passenger Airbag ON/OFF Indicator Circuit
Malfunction
DESCRIPTION
The passenger airbag ON/OFF indicator circuit consists of the center airbag
sensor assembly and
passenger airbag ON/OFF indicator.
This circuit indicates the operation condition of the front passenger airbag, ...
Disassembly
1. REMOVE REAR NO. 2 SEAT COVER BEZEL
Remove the 3 screws.
Disengage the 3 claws and remove the rear No. 2
seat cover bezel.
2. REMOVE REAR SEAT RECLINING COVER RH
Remove the 2 screws.
Disengage the claw and remove the rear seat
reclining cover RH.
...
