LEMON Manuals: Even more car manuals for everyone: 1960-2025
Home >> Lexus >> 2016 >> LS 600h >> Repair and Diagnosis >> Body & Frame >> Windows >> Power Window Control System - Diagnostics - Introduction >> Power Window Control System >> How To Proceed With Troubleshooting [09/2015 - ] >> Procedure
April 5, 2026: LEMON Manuals is launched! Read the announcement.

How To Proceed With Troubleshooting [09/2015 - ]: Procedure

  1. VEHICLE BROUGHT TO WORKSHOP 

    Result

    Proceed to
    NEXT

    Result:  1

    NEXT 

    Refer to  2

  2. INSPECT AUXILIARY BATTERY VOLTAGE 

    Standard voltage

    11 to 14 V

    If the voltage is below 11 V, recharge or replace the auxiliary battery before proceeding.

    Result

    Proceed to
    NEXT

    Result:  1

    NEXT 

    Refer to  3

  3. CHECK FOR DTC* 
    1. Check for DTCs and make a note of any codes that are output.
    2. Clear the DTC.
    3. Recheck for DTCs. Based on the DTCs output in the first step, try to force output of the same DTC by simulating the symptoms indicated by the DTC.

      Result

      Result Proceed to
      No DTCs output A
      B2311 is output B
      B2312 is output B
      B2313 is output B
      CAN communication system DTC output reoccur C
      LIN communication system DTC output reoccur D

    Result:  2

    GO TO DIAGNOSTIC TROUBLE CODE CHART. Refer to  DIAGNOSTIC TROUBLE CODE CHART [09/2015 - ]  

    Result:  3

    GO TO CAN COMMUNICATION SYSTEM. Refer to  PRECAUTION [09/2015 - ] 

    Result:  4

    GO TO LIN COMMUNICATION SYSTEM. Refer to  HOW TO PROCEED WITH TROUBLESHOOTING [09/2015 - ] 

    Result:  1

    Refer to  4

  4. PROBLEM SYMPTOMS TABLE 
    1. Refer to the problem symptoms table.

      Refer to PROBLEM SYMPTOMS TABLE [09/2015 - ] 

      Result

      Result Proceed to
      Fault not listed in problem symptoms table A
      Fault listed in problem symptoms table B

    Result:  2

    Refer to  6

    Result:  1

    Refer to  5

  5. OVERALL ANALYSIS AND TROUBLESHOOTING* 
    1. Operation Check.

      Refer to OPERATION CHECK [09/2015 - ] 

    2. Terminals of ECU.

      Refer to TERMINALS OF ECU [09/2015 - ] 

    3. Data List / Active Test.

      Refer to DATA LIST / ACTIVE TEST [09/2015 - ] 

      Result

      Proceed to
      NEXT

    Result:  1

    NEXT 

    Refer to  6

  6. REPAIR OR REPLACE 

    Result

    Result Proceed to
    Door window regulator and power window regulator motor assembly is replaced or removed/installed. A
    Door window regulator and power window regulator motor assembly is not replaced or removed/installed. B

    Result:  2

    Refer to  8

    Result:  1

    Refer to  7

  7. PERFORM INITIALIZATION 
    1. Initialization the power window motor.

      Refer to INITIALIZATION [09/2015 - ] 

      Result

      Proceed to
      NEXT

    Result:  1

    NEXT 

    Refer to  8

  8. CONFIRMATION TEST 

    Result

    Proceed to
    NEXT

    Result:  1

    NEXT 

    END