Toyota Sienna Service Manual: How to proceed with troubleshooting
HINT:
- Use this procedure to troubleshoot the theft deterrent system.
- The intelligent tester should be used in step 2.
1 VEHICLE BROUGHT TO WORKSHOP
2 CUSTOMER PROBLEM ANALYSIS
- Interview the customer to confirm the trouble
3 INSPECT COMMUNICATION FUNCTION OF 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 output, proceed to A.
- (ECU unconnected, communication line malfunctioning) With code output, proceed to B.
4 SYMPTOM SIMULATION
5 PROBLEM SYMPTOMS TABLE
- If the fault is not listed on the problem symptoms table, proceed to A.
- If the fault is listed on the problem symptoms table, proceed to B.
6 PERFORM TROUBLESHOOTING ACCORDING TO MALFUNCTION SYMPTOM
- Terminals of ECU
- System description
7 ADJUST, REPAIR OR REPLACE
8 CONFIRMATION TEST
END
System description
1. OUTLINE OF THEFT DETERRENT SYSTEM
When the theft deterrent system detects that the
vehicle is being tampered with, the system sets off
the alarm, causing the horns to sound and the li ...
Customize parameters
HINT:
The following items can be customized.
NOTICE:
After confirming whether the items requested by the
customer are applicable or not for customization,
perform customizing operation ...
Other materials:
Dtc check / clear
Notice:All the stored dtcs and freeze frame data are
erased if:
1) the ecm is changed from normal mode to check mode
or vice versa; or 2) the ignition switch is turned from on
to acc or off while in check mode.
Before changing modes, always check and make a note
of any dt ...
Disassembly
1. REMOVE BACK DOOR GARNISH CENTER
Using a clip remover, disengage the 5 clips and
remove the garnish center.
2. REMOVE BACK DOOR SIDE GARNISH LH
Using a clip remover, disengage the 3 clips and
remove the side garnish.
3. REMOVE BACK DOOR SIDE GARNISH RH
Using a clip remove ...
Correct use of the seat belts
Make sure that all occupants are wearing their seat belts before driving
the vehicle. Use a child restraint system appropriate for the child until the child
becomes large enough to properly wear the vehicle’s seat belt.
Adjusting the mirrors
Make sure that you can see backward clearly by adjus ...
