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