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Last Modified: 11-27-2007 1.6 D
Service Category: Suspension Section: Tire Pressure Monitoring
Model Year: 2008 Model: LX570 Doc ID: RM000000XMQ02GX
Title: TIRE PRESSURE MONITORING: TIRE PRESSURE WARNING SYSTEM: HOW TO PROCEED WITH TROUBLESHOOTING (2008 LX570)

HOW TO PROCEED WITH TROUBLESHOOTING

HINT:

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

1.

VEHICLE BROUGHT TO WORKSHOP
NEXT

2.

INSPECT BATTERY VOLTAGE

Standard voltage:

11 to 14 V

If the voltage is below 11 V, recharge or replace the battery before proceeding.

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3.

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.

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4.

ADJUST TIRE PRESSURE*

(a) Turn the engine switch off.

(b) Connect the Techstream to the DLC3.

(c) Turn the engine switch on (IG) and the Techstream on.

(d) Enter the following menus: Chassis / Tire Pressure / Data List.

(e) Read the "ID Tire Inflation Pressure" values.

(f) Adjust all tire pressures to the standard value(s) TIRE PRESSURE MONITORING: TIRE PRESSURE WARNING SYSTEM: PRECAUTION (2008 LX570) .

(g) Check the Data List TIRE PRESSURE MONITORING: TIRE PRESSURE WARNING SYSTEM: DATA LIST / ACTIVE TEST (2008 LX570) .

HINT:

  • It takes about 2 or 3 minutes to display the updated tire pressure data.
  • If the problem is that the tire pressure was low, 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.
  • The tire pressure information reception condition can also be confirmed through the multi-information display tire pressure display screen.

Result

Result

Proceed to

Tire pressure warning light goes off.

A

Tire pressure warning light remains on.

B
A

Go to step 10
B

5.

CHECK FOR DTC*

(a) Check for DTC TIRE PRESSURE MONITORING: TIRE PRESSURE WARNING SYSTEM: DTC CHECK / CLEAR (2008 LX570) .

Result

Result

Proceed to

DTC is not output

A

DTC is output

B
A

Go to step 7
B

6.

DTC CHART

(a) Refer to the Diagnostic Trouble Code Chart TIRE PRESSURE MONITORING: TIRE PRESSURE WARNING SYSTEM: DIAGNOSTIC TROUBLE CODE CHART (2008 LX570) .

NEXT

Go to step 9

7.

PROBLEM SYMPTOMS TABLE

(a) Refer to the Problem Symptoms Table TIRE PRESSURE MONITORING: TIRE PRESSURE WARNING SYSTEM: PROBLEM SYMPTOMS TABLE (2008 LX570) .

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8.

CIRCUIT INSPECTION*

(a) Refer to the Electronic Circuit Inspection Procedure INTRODUCTION: HOW TO TROUBLESHOOT ECU CONTROLLED SYSTEMS: ELECTRONIC CIRCUIT INSPECTION PROCEDURE (2008 LX570) .

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9.

REPAIR OR REPLACE

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

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10.

CONFIRMATION TEST*

(a) Check the Data List to confirm that the tire inflation pressure data has been received TIRE PRESSURE MONITORING: TIRE PRESSURE WARNING SYSTEM: DATA LIST / ACTIVE TEST (2008 LX570) .

(b) Perform initialization TIRE PRESSURE MONITORING: TIRE PRESSURE WARNING SYSTEM: INITIALIZATION (2008 LX570) .

(c) Confirm that the initialization has been completed.

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END