Lexus IS250 · Service Manual STEERING

HOW TO PROCEED WITH TROUBLESHOOTING

Troubleshooting

The intelligent tester can be used at steps 2, 6, 9 and 12.

1.VEHICLE BROUGHT TO WORKSHOP
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    2.CHECK AND CLEAR DTCS
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      3.PROBLEM SYMPTOM CONFIRMATION

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        4.SYMPTOM SIMULATION
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          5.CHECK MULTIPLEX COMMUNICATION SYSTEM

            HINT:
            Check that there are no problems in the multiplex communication system before troubleshooting the steering lock system.

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          6.DTC CHECK

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            7.PROBLEM SYMPTOMS TABLE

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              8.DTC CHART
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                9.CIRCUIT INSPECTION
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                  10.PROBLEM IDENTIFICATION
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                    11.REPAIR OR REPLACEMENT
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                      12.CONFIRMATION TEST
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