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
GO TO PROBLEM SYMPTOMS TABLE
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
Go to step 5
10 SYMPTOM SIMULATION
- Check the passenger airbag ON/OFF indicator condition.
Result
Go to step 5
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 o ...
Other materials:
Inner rear view mirror
COMPONENTS
REMOVAL
1. REMOVE INNER REAR VIEW MIRROR ASSEMBLY
w/ EC mirror:
Remove the inner rear view mirror cover.
w/ EC mirror:
Disconnect the connector.
Remove the screw.
Remove the inner rear view mirror assembly as
shown in the illustration.
IN ...
Light Control Switch Circuit
DESCRIPTION
This circuit detects the state of the headlight dimmer switch.
WIRING DIAGRAM
INSPECTION PROCEDURE
1 READ VALUE OF INTELLIGENT TESTER
Connect the intelligent tester to DLC3.
Turn the ignition switch ON and push the intelligent
tester main switch ON.
Select t ...
Under hood
GENERAL MAINTENANCE
1. GENERAL NOTES
Maintenance requirements very depending on the
country.
Check the maintenance schedule in the owner's
manual supplement.
Following the maintenance schedule is mandatory.
Determine the appropriate time to service the vehicle
using either miles dri ...
