Toyota Sienna Service Manual: How to proceed with troubleshooting
HINT:
- Use the following procedures to troubleshoot the tire pressure warning system.
- *: Use the intelligent tester.
1 VEHICLE BROUGHT TO WORKSHOP
2 CUSTOMER PROBLEM ANALYSIS
(a) Interview the customer to confirm the trouble.
HINT: It is important to collect as much specific information as possible from the customer to allow for a quick repair.
3 ADJUST TIRE PRESSURE
(a) Adjust all tire pressures to the standard values.
Result
4 CHECK FOR DTC*
(a) Check for DTCs (See page TW-34).
Result 
5 DTC CHART
(a) Refer to DIAGNOSTIC TROUBLE CODE CHART (See page TW-37).
Go to step 7
6 PROBLEM SYMPTOMS TABLE
(a) Refer to PROBLEM SYMPTOMS TABLE (See page TW- 28).
7 CIRCUIT INSPECTION*
(a) Refer to ELECTRONIC CIRCUIT INSPECTION PROCEDURE (See page IN-30).
8 REPAIR OR REPLA
(a) Repair or replace parts based on the diagnosis result.
9 CONFIRMATION TEST
(a) Check the DATA LIST to confirm that the tire inflation pressure has been received (See page TW-35).
(b) Perform initialization (See page TW-23).
(c) Confirm that the initialization has been completed.
END
System description
1. DESCRIPTION OF SYSTEM
(a) A tire pressure warning valve and transmitter is
equipped with a tire pressure sensor and a
transmitter and is installed in a tire wheel assembly.
The sensor measure ...
Registration
...
Other materials:
Precaution
1. INITIALIZATION
NOTICE:
Perform RESET MEMORY (AT initialization) when
replacing the automatic transaxle assembly, engine
assembly or ECM (See page AX-16).
Perform REGISTRATION (VIN registration) when
replacing the ECM (See page ES-15).
HINT:
Initializatio ...
Steering wheel audio
switches
Some audio features can be controlled using the switches on
the steering wheel.
Operation may differ depending on the type of audio system or
navigation system. For details, refer to the manual provided with
the audio system or navigation system.
Operating the audio system using the steering ...
Diagnostic trouble code chart
COMMUNICATION DIAGNOSIS:
SW:
SW WITH NAME:
SW CONVERTING:
COMMAND SW:
FRONT MONITOR:
DVD PLAYER:
TELEPHONE:
NAVI:
IN-DASH CD CHANGER:
GPS:
CAMERA UNIT:
...
