2016 Lexus LS 600hFACTORY OEM SERVICE PROCEDURE

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

  1. VEHICLE BROUGHT TO WORKSHOP 

    Result

    Proceed to
    NEXT

    Result:  1

    NEXT 

    See step  2

  2. CUSTOMER PROBLEM ANALYSIS 

    Result

    Proceed to
    NEXT

    Result:  1

    NEXT 

    See step  3

  3. CONNECT TECHSTREAM TO DLC3 

    HINT: 

    If the display indicates a communication fault in the Techstream, inspect the DLC3. When any CAN communication system DTCs are output, perform troubleshooting on the CAN communication system first.

    Result

    Proceed to
    NEXT

    Result:  1

    NEXT 

    See step  4

  4. CHECK DTC AND FREEZE FRAME DATA* 

    HINT: 

    Record or print DTCs and freeze frame data, if necessary.

    Result

    Proceed to
    NEXT

    Result:  1

    NEXT 

    See step  5

  5. CLEAR DTC AND FREEZE FRAME DATA* 

    Result

    Proceed to
    NEXT

    Result:  1

    NEXT 

    See step  6

  6. CONDUCT VISUAL INSPECTION 

    Result

    Proceed to
    NEXT

    Result:  1

    NEXT 

    See step  7

  7. SET CHECK MODE DIAGNOSIS* 

    Result

    Proceed to
    NEXT

    Result:  1

    NEXT 

    See step  8

  8. CONFIRM PROBLEM SYMPTOMS 

    HINT: 

    If the engine does not start, first perform the "CHECK DTC" procedures and "CONDUCT BASIC INSPECTION" procedures below.

    Result

    Result Proceed to
    Malfunction does not occur A
    Malfunction occurs B

    Result:  2

    B 

    See step  10

    Result:  1

    A 

    See step  9

  9. SIMULATE SYMPTOMS 

    Result

    Proceed to
    NEXT

    Result:  1

    NEXT 

    See step  10

  10. CHECK DTC* 

    Result

    Result Proceed to
    Trouble code A
    No code B

    Result:  2

    B 

    See step  12

    Result:  1

    A 

    See step  11

  11. REFER TO DTC CHART 

    Result

    Proceed to
    NEXT

    Result:  1

    NEXT 

    See step  12

  12. CONDUCT BASIC INSPECTION 

    Result

    Result Proceed to
    Malfunctioning parts not confirmed A
    Malfunctioning parts confirmed B

    Result:  2

    B 

    See step  17

    Result:  1

    A 

    See step  13

  13. REFER TO PROBLEM SYMPTOMS TABLE 

    Result

    Result Proceed to
    Malfunctioning circuit confirmed A
    Malfunctioning parts confirmed B

    Result:  2

    B 

    See step  17

    Result:  1

    A 

    See step  14

  14. CHECK ECM POWER SOURCE CIRCUIT 

    Result

    Proceed to
    NEXT

    Result:  1

    NEXT 

    See step  15

  15. CONDUCT CIRCUIT INSPECTION 

    Result

    Result Proceed to
    Malfunction not confirmed A
    Malfunction confirmed B

    Result:  2

    B 

    See step  18

    Result:  1

    A 

    See step  16

  16. CHECK FOR INTERMITTENT PROBLEMS 

    Result

    Proceed to
    NEXT

    Result:  1

    NEXT 

    See step  17

  17. CONDUCT PARTS INSPECTION 

    Result

    Proceed to
    NEXT

    Result:  1

    NEXT 

    See step  18

  18. IDENTIFY PROBLEM 

    Result

    Proceed to
    NEXT

    Result:  1

    NEXT 

    See step  19

  19. ADJUST AND/OR REPAIR 

    Result

    Proceed to
    NEXT

    Result:  1

    NEXT 

    See step  20

  20. CONDUCT CONFIRMATION TEST 

    Result

    Proceed to
    NEXT

    Result:  1

    NEXT 

    END 

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When to See a Mechanic

Stop DIY work and contact a certified mechanic immediately if any of the following apply:

  • • You smell fuel, burning insulation, or see smoke.
  • • Brakes feel soft, pull hard to one side, or make grinding noises.
  • • The engine overheats, stalls repeatedly, or misfires under load.
  • • You are missing required tools, torque specs, or safe lifting equipment.
  • • You are not confident in the next step or safety outcome.