Wiper And Washer System - How To Proceed With Troubleshooting

Lexus IS250 IS220d GSE20 ALE20 - WIPER AND WASHER


WIPER AND WASHER SYSTEM - HOW TO PROCEED WITH TROUBLESHOOTING

  • HINT:
Use the following procedures to troubleshoot the wiper and washer system.
*: Use the intelligent tester.

1.VEHICLE BROUGHT TO WORKSHOP
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2.PROBLEM SYMPTOM CONFIRMATION
  • Result:
  • ResultProceed to
    Symptom does not occurA
    Symptom occursB
B.
GO TO STEP 4
A
3.SYMPTOM SIMULATION
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4.CHECK MULTIPLEX COMMUNICATION SYSTEM*

Check for the multiplex communication system DTCs.

  • Result:
  • ResultProceed to
    MPX DTC is not outputA
    MPX DTC is output B
B.
PROCEED TO "MULTIPLEX COMMUNICATION SYSTEM"
A
5.CHECK CAN COMMUNICATION SYSTEM*

Check for CAN DTCs.

  • Result:
  • ResultProceed to
    CAN DTC is not outputA
    CAN DTC is outputB
B.
PROCEED TO "CAN COMMUNICATION SYSTEM"
A
6.PROBLEM SYMPTOMS TABLE
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7.CIRCUIT INSPECTION
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8.TERMINALS OF ECU
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9.IDENTIFICATION OF PROBLEM
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10.REPAIR OR REPLACE
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11.CONFIRMATION TEST
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END