Last Modified: 7-3-2017 6.8:8.0.40 Doc ID: RM000000XMQ00QX
Model Year Start: 2007 Model: LX470 Prod Date Range: [08/2006 -           ]
Title: TIRE AND WHEEL: TIRE PRESSURE WARNING SYSTEM: HOW TO PROCEED WITH TROUBLESHOOTING; 2007 MY LX470 [08/2006 -        ]

HOW TO PROCEED WITH TROUBLESHOOTING

HINT:

  • Use these procedures to troubleshoot the tire pressure warning system.
  • *: Use the intelligent tester.

1.

VEHICLE BROUGHT TO WORKSHOP
NEXT

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.

NEXT

3.

ADJUST TIRE PRESSURE

(a) Turn the ignition switch OFF.

(b) Connect the intelligent tester to the DLC3.

(c) Turn the ignition switch ON and the tester ON.

(d) Following the display on the intelligent tester, select the "DATA LIST".

(e) Read the "TIREPRESS" values.

(f) Adjust all tire pressures to the standard values 2007 MY LX470 [08/2006 -        ]; TIRE AND WHEEL: TIRE AND WHEEL SYSTEM: INSPECTION+ .

(g) Check the DATA LIST 2007 MY LX470 [08/2006 -        ]; TIRE AND WHEEL: TIRE PRESSURE WARNING SYSTEM: DATA LIST / ACTIVE TEST .

HINT:

  • It takes about 2 or 3 minutes to display the updated tire pressure data.
  • If the problem is that the tire pressure decreases, wait until all of the tire pressure data is received by the ECU. If the data is received, the tire pressure warning light will turn off.

Result

Condition

Proceed to

Tire pressure warning light goes off.

A

Tire pressure warning light remains on.

B
A

Go to step 9
B

4.

CHECK FOR DTC*

(a) Check for DTC 2007 MY LX470 [08/2006 -        ]; TIRE AND WHEEL: TIRE PRESSURE WARNING SYSTEM: DTC CHECK / CLEAR .

Result

Condition

Proceed to

DTC is not output

A

DTC is output

B
A

Go to step 6
B

5.

DTC CHART

(a) Refer to the DIAGNOSTIC TROUBLE CODE CHART 2007 MY LX470 [08/2006 -        ]; TIRE AND WHEEL: TIRE PRESSURE WARNING SYSTEM: DIAGNOSTIC TROUBLE CODE CHART .

NEXT

Go to step 8

6.

PROBLEM SYMPTOMS TABLE

(a) Refer to the PROBLEM SYMPTOMS TABLE 2007 MY LX470 [08/2006 -        ]; TIRE AND WHEEL: TIRE PRESSURE WARNING SYSTEM: PROBLEM SYMPTOMS TABLE .

Next

7.

CIRCUIT INSPECTION*

(a) Refer to the ELECTRONIC CIRCUIT INSPECTION PROCEDURE 2007 MY LX470 [08/2006 -        ]; INTRODUCTION: HOW TO TROUBLESHOOT ECU CONTROLLED SYSTEMS: ELECTRONIC CIRCUIT INSPECTION PROCEDURE .

NEXT

8.

REPAIR OR REPLACE

(a) Repair or replace parts based on the diagnosis result.

NEXT

9.

CONFIRMATION TEST*

(a) Check the DATA LIST to confirm that the tire inflation pressure has been received 2007 MY LX470 [08/2006 -        ]; TIRE AND WHEEL: TIRE PRESSURE WARNING SYSTEM: DATA LIST / ACTIVE TEST .

(b) Perform initialization 2007 MY LX470 [08/2006 -        ]; TIRE AND WHEEL: TIRE PRESSURE WARNING SYSTEM: INITIALIZATION .

(c) Confirm that the initialization has been completed.

NEXT

END