Clearance Sonar System - How To Proceed With Troubleshooting

Lexus IS250 IS220d GSE20 ALE20 - PARK ASSIST / MONITORING


CLEARANCE SONAR SYSTEM - HOW TO PROCEED WITH TROUBLESHOOTING

  • HINT:
Use these procedures to troubleshoot the clearance sonar system.
*: Use the intelligent tester.

1.VEHICLE BROUGHT TO WORKSHOP
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2.CUSTOMER PROBLEM ANALYSIS

Refer to how to proceed with troubleshooting .

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3.CHECK AND CLEAR DTC*

Refer to the DTC check/clear .

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4.CHECK INITIAL CHECK FUNCTION

Refer to operation check .

  • Result:
  • ResultProceed to
    Symptom does not occurA
    Symptom occursB
B.
Go to step 6
A
5.SYMPTOM SIMULATION

Refer to how to proceed with troubleshooting .

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6.CHECK MULTIPLEX COMMUNICATION SYSTEM*

Refer to how to proceed with troubleshooting .

  • HINT:
  • This ECU is connected to the multiplex communication system. Therefore, be sure to check that there are no problems in the multiplex communication system before performing troubleshooting.
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7.CHECK CAN COMMUNICATION SYSTEM*

Refer to how to proceed with troubleshooting .

  • HINT:
  • This ECU is connected to the CAN communication system. Therefore, be sure to check that there are no problems in the CAN communication system before performing troubleshooting.
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8.DTC CHECK*

*: Refer to the DTC check/clear .

  • Result:
  • ResultProceed to
    DTC is outputA
    DTC is not outputB
B.
Go to step 10
A
9.DTC CHART

Refer to the diagnostic trouble code chart .

NEXT
Go to step 11
10.PROBLEM SYMPTOMS TABLE

Refer to the problem symptoms table ().

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11.CIRCUIT INSPECTION
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12.IDENTIFICATION OF PROBLEM
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13.REPAIR OR REPLACE
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14.CONFIRMATION TEST
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END