Home › Vehicle Exterior › Window/Glass › WINDSHIELD DEICER SYSTEM
Last Modified: 11-27-2007 1.6 D
Service Category: Vehicle Exterior Section: Window/Glass
Model Year: 2008 Model: LX570 Doc ID: RM000002ZC700BX
Title: WINDOW / GLASS: WINDSHIELD DEICER SYSTEM: HOW TO PROCEED WITH TROUBLESHOOTING (2008 LX570)

HOW TO PROCEED WITH TROUBLESHOOTING

HINT:

  • Use these procedures to troubleshoot the windshield deicer system.
  • *: Use the Techstream.

1.

VEHICLE BROUGHT TO WORKSHOP
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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.

CHECK CAN COMMUNICATION SYSTEM

(a) Check if the CAN communication system is functioning normally NETWORKING: CAN COMMUNICATION SYSTEM: PRECAUTION (2008 LX570) .

OK:

CAN DTC is not output.

NG

Go to CAN COMMUNICATION SYSTEM

OK

4.

PROBLEM SYMPTOMS TABLE

(a) Refer to the Problem Symptoms Table WINDOW / GLASS: WINDSHIELD DEICER SYSTEM: PROBLEM SYMPTOMS TABLE (2008 LX570) .

Result

Result

Proceed to

Fault is not listed in problem symptoms table

A

Fault is listed in problem symptoms table

B
B

Go to step 8
A

5.

OVERALL ANALYSIS AND TROUBLESHOOTING*

(a) Terminals of ECU WINDOW / GLASS: WINDSHIELD DEICER SYSTEM: TERMINALS OF ECU (2008 LX570)

(b) Data List / Active Test WINDOW / GLASS: WINDSHIELD DEICER SYSTEM: DATA LIST / ACTIVE TEST (2008 LX570)

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6.

REPAIR OR REPLACE
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7.

CONFIRMATION TEST
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END