2007 Lexus LS 460LFACTORY OEM SERVICE PROCEDURE

How To Proceed With Troubleshooting

HINT:

  • The TCM of this system is connected to the CAN communication system. Therefore, before starting troubleshooting, make sure to check that there is no trouble in the CAN communication system.
  • *: Use the intelligent tester or Techstream.
  1. VEHICLE BROUGHT TO WORKSHOP 

    NEXT 

  2. CUSTOMER PROBLEM ANALYSIS 

    NEXT 

  3. INSPECT BATTERY VOLTAGE 

    Standard voltage: 

    11 to 14 V 

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

    NEXT 

  4. CONNECT INTELLIGENT TESTER OR TECHSTREAM TO DLC3* 

    NEXT 

  5. CHECK AND CLEAR DTCS AND FREEZE FRAME DATA* 
    1. Refer to the DTC CHECK / CLEAR  .

    NEXT 

  6. VISUAL INSPECTION 

    NEXT 

  7. SETTING CHECK MODE DIAGNOSIS* 
    1. Refer to the CHECK MODE PROCEDURE  .

    NEXT 

  8. PROBLEM SYMPTOM CONFIRMATION 
    1. Refer to the ROAD TEST  .

      Result 

      RESULT CHART

      Result Proceed to
      Symptom does not occur A
      Symptom occurs B

    B: GO TO STEP   10 

    A: GO TO NEXT STEP 

  9. SYMPTOM SIMULATION 
    1. Refer to the ELECTRONIC CIRCUIT INSPECTION PROCEDURE (see ELECTRONIC CIRCUIT INSPECTION PROCEDURE ).

    NEXT 

  10. DTC CHECK* 
    1. Refer to the DTC CHECK / CLEAR  ).

      Result 

      RESULT CHART

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

    B: GO TO STEP   18 

    A: GO TO NEXT STEP 

  11. BASIC INSPECTION 
    1. Refer to the AUTOMATIC TRANSMISSION FLUID  ).
    2. Refer to the PARK/NEUTRAL POSITION SWITCH  ).
    3. Refer to the FLOOR SHIFT ASSEMBLY  ).

    NG: GO TO STEP   21 

    OK: GO TO NEXT STEP 

  12. MECHANICAL SYSTEM TESTS 
    1. Refer to the MECHANICAL SYSTEM TESTS  ).

    NG: GO TO STEP   17 

    OK: GO TO NEXT STEP 

  13. HYDRAULIC TEST 
    1. Refer to the HYDRAULIC TEST  ).

    NG: GO TO STEP   17 

    OK: GO TO NEXT STEP 

  14. MANUAL SHIFTING TEST 
    1. Refer to the MANUAL SHIFTING TEST (see REGISTRATION  ).

    NG: GO TO STEP   16 

    OK: GO TO NEXT STEP 

  15. PROBLEM SYMPTOMS TABLE CHAPTER 1 
    1. Refer to the PROBLEM SYMPTOMS TABLE  ).

    NG: GO TO STEP   19 

    OK: GO TO NEXT STEP 

  16. PROBLEM SYMPTOMS TABLE CHAPTER 2 
    1. Refer to the PROBLEM SYMPTOMS TABLE  ).

    NEXT 

  17. PART INSPECTION 

    NG: GO TO STEP   21 

    OK: GO TO NEXT STEP 

  18. DTC CHART 
    1. Refer to the DIAGNOSTIC TROUBLE CODE CHART  ).

    NEXT 

  19. CIRCUIT INSPECTION 

    NEXT 

  20. IDENTIFICATION OF PROBLEM 

    NEXT 

  21. REPAIR OR REPLACE 

    NEXT 

  22. CONFIRMATION TEST 

    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.

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