Air Suspension System How To Proceed With Troubleshooting

  1. VEHICLE BROUGHT TO WORKSHOP

  2. CUSTOMER PROBLEM ANALYSIS

  3. INSPECT BATTERY VOLTAGE

  4. CHECK AND CLEAR DTC*

  5. CHECK AND CLEAR DTC*

  6. PROBLEM SYMPTOM CONFIRMATION

  7. SYMPTOM SIMULATION

  8. CHECK DTC*

  9. PROBLEM SYMPTOMS TABLE

  10. DTC CHART

  11. CIRCUIT INSPECTION*

  12. IDENTIFICATION OF PROBLEM

  13. REPAIR OR REPLACE

  14. CONFIRMATION TEST

Air Suspension System -- How To Proceed With Troubleshooting


HINT:
*: Use the intelligent tester.


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 11 V, recharge or replace the battery before proceeding.

      NEXT


      4.CHECK AND CLEAR DTC*

      1. Check if any DTCs are output (LandCruiser RM000001G7P02NX.html).

        HINT:
        The suspension control ECU of this system is connected to CAN communication system. Therefore, before starting troubleshooting, be sure to check that there is no trouble in CAN communication system (for LHD: LandCruiser RM000000WIB0ECX.html, for RHD: LandCruiser RM000000WIB0EEX.html).
        Result
        Result
        		Proceed to
        CAN DTC not output
        		A
        CAN DTC output
        		B


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


      5.CHECK AND CLEAR DTC*

      1. Check for DTCs (LandCruiser RM000001G7P02NX.html).


      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

        NEXT


        8.CHECK DTC*

        1. Check for DTCs (LandCruiser RM000001G7P02NX.html).

          Result
          Result
          		Proceed to
          DTC not output
          		A
          DTC output
          		B



        		B.
        Go to step 10
        A


        9.PROBLEM SYMPTOMS TABLE

        1. Refer to the Problem Symptoms Table (LandCruiser RM000001SGQ021X.html).


        NEXT


        10.DTC CHART

        1. Refer to the Diagnostic Trouble Code Chart (LandCruiser RM000002Q4X026X.html).


        NEXT


        11.CIRCUIT INSPECTION*

          NEXT


          12.IDENTIFICATION OF PROBLEM

            NEXT


            13.REPAIR OR REPLACE

              NEXT


              14.CONFIRMATION TEST

                NEXT

                END