Toyota Sienna Service Manual: How to proceed with troubleshooting
HINT: Troubleshoot in accordance with the procedures on the following pages.
1 VEHICLE BROUGHT TO WORKSHOP
2 CUSTOMER PROBLEM ANALYSIS CHECK AND SYMPTOM CHECK
3 INSPECT COMMUNICATION FUNCTION OF LARGE-SCALE MULTIPLEX COMMUNICATION SYSTEM (BEAN)
- Use the intelligent tester to check for normal function of the multiplex communication system.
- (ECU unconnected, communication line malfunctioning) Without code outputs, proceed to A.
- (ECU unconnected, communication line malfunctioning) With code outputs, proceed to B.
4 DTC CHECK
- Check for a diagnostic trouble code.
- Without code outputs, proceed to A.
- With code outputs, proceed to B.
5 PROBLEM SYMPTOMS TABLE
- When problem is not listed on problem symptoms table, proceed to A.
- When problem is listed on problem symptoms table, proceed to B.
6 PERFORM TROUBLESHOOTING ACCORDING TO MALFUNCTION SYMPTOM
- Data List / Active Test.
- Operation check.
- Inspection.
- Terminals of ECU
7 ADJUST, REPAIR OR REPLACE
8 RESET POWER SLIDE DOOR SYSTEM
9 CONFIRMATION TEST
END
Power slide door system
PARTS LOCATION
...
Operation check
NOTICE:
Inspection should be started after conforming that the
items listed in the "CUSTOMIZE PARAMETER" for the
power slide door system have defaulted to the initial
settings.
1. CHECK ...
Other materials:
Shift Solenoid "E" Performance (Shift Solenoid
Valve SR)
SYSTEM DESCRIPTION
The ECM uses signals from the vehicle speed sensor to detect the actual gear
position (1st, 2nd, 3rd, 4th
or 5th gear).
Then the ECM compares the actual gear with the shift schedule in the ECM memory
to detect mechanical
problems of the shift solenoid valves, valve b ...
Seat belt warning system
PARTS LOCATION
Problem symptoms table
SEAT BELT WARNING SYSTEM
Symptom
Suspected Area
Driver side seat belt waning light does not operate
Fuse
Combination meter
Center airbag sensor assembly
Front seat inner belt assembly
Wire harness
...
Data list / active test
1. DATA LIST
HINT:
With the intelligent tester connected to the DLC3 and the
ignition switch to the ON position, the ABS, TRAC and
VSC data list can be displayed. Follow the prompts on
the tester screen to access the DATA LIST.
*: 2WD
2. ACTIVE TEST
HINT:
Performing the ACTIVE TEST usin ...