Lexus IS250 · Service Manual BODY

HOW TO PROCEED WITH TROUBLESHOOTING

Troubleshooting

HINT:
  1. Use this procedure to troubleshoot the power window control system.
  2. The intelligent tester should be used in steps 3 and 5.


1.VEHICLE BROUGHT TO WORKSHOP
    NEXT

    2.CUSTOMER PROBLEM ANALYSIS CHECK AND SYMPTOM CHECK
      NEXT

      3.CHECK COMMUNICATION FUNCTION OF MULTIPLEX COMMUNICATION SYSTEM (BEAN)

        HINT:
        Click here

      1. Use the intelligent tester to confirm normal function of the multiplex communication system.

        1. (ECU unconnected, communication line malfunctioning) Without code outputs, proceed to A.

        2. (ECU unconnected, communication line malfunctioning) With code outputs, proceed to B.


      		 B.
      A

      4.PROBLEM SYMPTOMS TABLE

        HINT:
        Click here

      NEXT

      5.OVERALL ANALYSIS AND TROUBLESHOOTING

      1. Data list/Active test

        HINT:
        Click here

      2. Circuit inspection

      3. Terminal of ECU

        HINT:
        Click here

      NEXT

      6.ADJUST, REPAIR OR REPLACE
        NEXT

        7.RESET POWER WINDOW MOTOR

          HINT:
          Click here

        NEXT

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