Windshield Deicer System - How To Proceed With Troubleshooting

Land Cruiser URJ200 URJ202 GRJ200 VDJ200 - WINDOW / GLASS


WINDSHIELD DEICER SYSTEM - HOW TO PROCEED WITH TROUBLESHOOTING

  • HINT:
Use these procedures to troubleshoot the windshield deicer system.
*: Use the intelligent tester.

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 VEHICLE TYPE

Check the vehicle type.

Result
ResultProceed to
w/o Navigation SystemA
w/ Navigation SystemB
B.
Go to step 5
A
4.CHECK LIN COMMUNICATION SYSTEM

Check if the LIN communication system is functioning normally ().

Result
ResultProceed to
LIN DTC is output.A
LIN DTC is not output.B
B.
Go to step 6
A
Go to LIN COMMUNICATION SYSTEM ()
5.CHECK CAN COMMUNICATION SYSTEM

Check if the CAN communication system is functioning normally.

for LHD: ()
for RHD: ()
Result
ResultProceed to
CAN DTC is not outputA
CAN DTC is output (for LHD)B
CAN DTC is output (for RHD)C
B.
Go to CAN COMMUNICATION SYSTEM ()
C.
Go to CAN COMMUNICATION SYSTEM ()
A
6.PROBLEM SYMPTOMS TABLE

Refer to the Problem Symptoms Table ().

Result
ResultProceed to
Fault is not listed in problem symptoms tableA
Fault is listed in problem symptoms tableB
B.
ADJUST, REPAIR OR REPLACE IN ACCORDANCE WITH PROBLEM SYMPTOMS TABLE
A
7.OVERALL ANALYSIS AND TROUBLESHOOTING*

Terminals of ECU ()

Data List / Active Test ()

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8.REPAIR OR REPLACE
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9.CONFIRMATION TEST
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END