Power Steering System (W/ Vsc) How To Proceed With Troubleshooting

  1. VEHICLE BROUGHT TO WORKSHOP

  2. CUSTOMER PROBLEM ANALYSIS

  3. INSPECT BATTERY VOLTAGE*

  4. CHECK DTC*

  5. CLEAR DTC*

  6. PROBLEM SYMPTOM CONFIRMATION

  7. SYMPTOM SIMULATION

  8. CHECK CAN COMMUNICATION SYSTEM*

  9. CHECK FOR DTC*

  10. PROBLEM SYMPTOMS TABLE

  11. CIRCUIT INSPECTION

  12. IDENTIFICATION OF PROBLEM

  13. REPAIR OR REPLACE

  14. CONFIRMATION TEST

Power Steering System (W/ Vsc) -- How To Proceed With Troubleshooting


HINT:
*: Use the intelligent tester.


1.VEHICLE BROUGHT TO WORKSHOP

    NEXT


    2.CUSTOMER PROBLEM ANALYSIS

    1. Confirm problem symptoms (LandCruiser RM000003YMJ00XX.html).


    NEXT


    3.INSPECT BATTERY VOLTAGE*

    1. Measure the voltage of the battery.

      Standard voltage:
      11 to 14 V
      If the voltage is below 11 V, recharge or replace the battery before proceeding to the next step.

    NEXT


    4.CHECK DTC*

    1. Check and record DTCs.


    NEXT


    5.CLEAR DTC*

    1. Clear the DTCs.


    NEXT


    6.PROBLEM SYMPTOM CONFIRMATION
      Result
      Result
      		Proceed to
      Symptom does not occur.
      		A
      Symptom occurs.
      		B


    		B.
    Go to step 8
    A


    7.SYMPTOM SIMULATION

    1. Perform symptom simulation (LandCruiser RM000003YMJ00XX.html).


    NEXT


    8.CHECK CAN COMMUNICATION SYSTEM*

    1. Check for DTCs (LandCruiser RM00000275008XX.html).

      Result
      Result
      		Proceed to
      CAN communication system DTC is not output.
      		A
      CAN communication system DTC is output.
      		B

      HINT:
      1. If any CAN communication system DTCs are output, perform troubleshooting for the CAN communication system first.
        2. for LHD with Entry and Start System:
        1. Refer to the following procedures (LandCruiser RM000001RSO0C5X.html).
        for LHD without Entry and Start System:
        1. Refer to the following procedures (LandCruiser RM000001RSO0BYX.html).
        for RHD with Entry and Start System:
        1. Refer to the following procedures (LandCruiser RM000001RSO0BZX.html).
        for RHD without Entry and Start System:
        1. Refer to the following procedures (LandCruiser RM000001RSO0C0X.html).
      2. If communication with the power steering ECU cannot be established through the intelligent tester, inspect terminals CANH and CANL of the DLC3 and power steering ECU, and the IG circuit of the power steering ECU.


    		B.
    PROCEED TO CAN COMMUNICATION SYSTEM (HOW TO PROCEED WITH TROUBLESHOOTING)
    A


    9.CHECK FOR DTC*

    1. Check for DTCs (LandCruiser RM00000275008XX.html).

      HINT:
      Refer to Diagnostic Trouble Code Chart when any DTCs are output (LandCruiser RM00000274U07QX.html).
      Result
      Result
      		Proceed to
      DTC is not output.
      		A
      DTC is output.
      		B


    		B.
    Go to step 11
    A


    10.PROBLEM SYMPTOMS TABLE

    1. Refer to Problem Symptoms Table (LandCruiser RM00000203M01IX.html).


    NEXT


    11.CIRCUIT INSPECTION

      NEXT


      12.IDENTIFICATION OF PROBLEM

        NEXT


        13.REPAIR OR REPLACE

          NEXT


          14.CONFIRMATION TEST

            NEXT

            END