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:
Data list / active test
1. DATA LIST
HINT:
Using the intelligent tester to read the DATA LIST allows
the values or states of switches, sensors, actuators and
other items to be read without removing any parts. This
non-intrusive inspection can be very useful because
intermittent conditions or signals may be discovered ...
Warning light and indicator light bulb check
(a) Check the warning lights.
(1) Release parking brake pedal.
(2) When the ignition switch is turned to the ON
position, check that the ABS warning light,
BRAKE warning light, VSC warning light, TRAC
OFF indicator light (2WD) and SLIP indicator
light stay on for approx. 3 seconds.
HI ...
Installation
1. INSTALL PROPELLER W/CENTER BEARING SHAFT ASSEMBLY
(a) Align the matchmarks on the propeller shaft
assembly rear flange and differential companion
flange, and connect the shaft with the 4 bolts,
washers and nuts.
(b) Remove SST(s) from the extension housing.
(c) Insert the yoke int ...
