RX400h · Service Manual STEERING

HOW TO PROCEED WITH TROUBLESHOOTING

Troubleshooting

Perform troubleshooting according to the following flowchart.

HINT:
  1. For further details, see the page given.
  2. The intelligent tester can be used at steps 3, 4, 7, and 10.


1.VEHICLE BROUGHT TO WORKSHOP
    NEXT

    2.CUSTOMER PROBLEM ANALYSIS
      NEXT

      3.CHECK DTC AND FREEZE FRAME DATA

      1. Record DTCs and freeze frame data.

      NEXT

      4.CLEAR DTC AND FREEZE FRAME DATA
        NEXT

        5.PROBLEM SYMPTOM CONFIRMATION

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          6.SYMPTOM SIMULATION
            NEXT

            7.CHECK DTC

            1. Recheck for DTCs.

              HINT:
              1. Refer to the diagnostic trouble code chart if any DTCs are output.
              2. If any CAN communication system DTCs are output, perform troubleshooting on the CAN communication system first (Click here).
              3. If communication to the power steering ECU assembly is not established through the intelligent tester, inspect terminals SIL of the DLC3 and power steering ECU assembly, and inspect the IG circuit of the power steering ECU assembly.


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            8.PROBLEM SYMPTOMS TABLE
              NEXT

              9.DTC CHART
                NEXT

                10.CIRCUIT INSPECTION
                  NEXT

                  11.IDENTIFICATION OF PROBLEM
                    NEXT

                    12.REPAIR OR REPLACE
                      NEXT

                      13.CONFIRMATION TEST
                        NEXT

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