LEMON Manuals: Even more car manuals for everyone: 1960-2025
Home >> Lexus >> 2017 >> LS 460 Base, AWD >> Repair and Diagnosis >> Body & Frame >> Windows >> Window Defogger System - Diagnostics & Symptom Tests >> Window Defogger 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 

    See step  2

  2. INSPECT BATTERY VOLTAGE 

    Standard Voltage

    11 to 14 V

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

    Result

    Proceed to
    NEXT

    Result:  1

    NEXT 

    See step  3

  3. INSPECT ELECTRIC POWER CONTROL SYSTEM* 
    1. Using the Techstream, check the electric power control system's load control history.

      Refer to PROBLEM SYMPTOMS TABLE [09/2015 - ]

      Result

      Proceed to
      NEXT

    Result:  1

    NEXT 

    See step  4

  4. INSPECT COMMUNICATION FUNCTION OF CAN COMMUNICATION SYSTEM* 
    1. Use the Techstream to check that the CAN communication system is functioning normally.

      Refer to HOW TO PROCEED WITH TROUBLESHOOTING [09/2015 - ]

      Result

      Result Proceed to
      CAN DTC is not output A
      CAN DTC is output B

    Result:  2

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

    Result:  1

    See step  5

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

      Refer to PROBLEM SYMPTOMS TABLE [09/2015 - ] 

      Result

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

    Result:  2

    ADJUST, REPAIR OR REPLACE IN ACCORDANCE WITH PROBLEM SYMPTOMS TABLE 

    Result:  1

    See step  6

  6. OVERALL ANALYSIS AND TROUBLESHOOTING* 
    1. Terminals of ECU

      Refer to TERMINALS OF ECU [09/2015 - ] 

    2. DATA LIST / ACTIVE TEST

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

    3. On-vehicle Inspection

      Refer to ON-VEHICLE INSPECTION [09/2015 - ]

    4. Inspection

      Result

      Proceed to
      NEXT

    Result:  1

    NEXT 

    See step  7

  7. REPAIR OR REPLACE 

    Result

    Proceed to
    NEXT

    Result:  1

    NEXT 

    See step  8

  8. CONFIRMATION TEST 

    Result

    Proceed to
    NEXT

    Result:  1

    NEXT 

    END