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:
Precaution
1. INSPECTION PROCEDURE FOR VEHICLE INVOLVED
IN ACCIDENT
Perform the zero point calibration and sensitivity
check if any of the following conditions occur.
The occupant classification ECU is replaced.
Accessories (seatback tray and seat cover, etc.)
are installed.
...
Installation
1. INSTALL REAR NO. 1 SEAT ASSEMBLY CENTER
Place the seat in the cabin.
NOTICE:
Be careful not to damage the body.
Install the rear seat.
Install the seat belt anchor plate with the bolt.
Torque: 42 N*m (428 kgf*cm, 31 ft.*lbf)
Install the headrest.
...
Removal
1. REMOVE INSTRUMENT CLUSTER CENTER NO. 1 FINISH PANEL
2. REMOVE INSTRUMENT CLUSTER CENTER NO. 2 FINISH PANEL
3. REMOVE INSTRUMENT CLUSTER FINISH PANEL GARNISH
4. REMOVE RADIO RECEIVER
Remove the 4 screws.
Disconnect the connectors and remove the radio
receiver with bracke ...
