Engine Immobiliser System (W/ Entry And Start System) How To Proceed With Troubleshooting

Vehicle Interior. Land Cruiser. Urj200, 202 Grj200 Vdj200
Theft Deterrent Keyless Entry. Land Cruiser. Urj200, 202 Grj200 Vdj200

  1. VEHICLE BROUGHT TO WORKSHOP

  2. CUSTOMER PROBLEM ANALYSIS

  3. INSPECT BATTERY VOLTAGE

  4. TURN ENGINE SWITCH ON (IG)

  5. INSPECT COMMUNICATION FUNCTION OF CAN COMMUNICATION SYSTEM*

  6. INSPECT COMMUNICATION FUNCTION OF LIN COMMUNICATION SYSTEM*

  7. CHECK FOR DTC*

  8. PROBLEM SYMPTOMS TABLE

  9. OVERALL ANALYSIS AND TROUBLESHOOTING*

  10. REPAIR OR REPLACE

  11. CHECK FOR DTC*

Engine Immobiliser System (W/ Entry And Start System) -- How To Proceed With Troubleshooting


HINT:
  1. Use this procedure to troubleshoot the engine immobiliser system.
  1. *: Use the GTS.


1.VEHICLE BROUGHT TO WORKSHOP

    NEXT


    2.CUSTOMER PROBLEM ANALYSIS
      HINT:
      1. In troubleshooting, confirm that the problem symptoms have been accurately identified. Preconceptions should be discarded in order to make an accurate judgment. To clearly understand what the problem symptoms are, it is extremely important to ask the customer about the problem and the conditions at the time the malfunction occurred.
      2. Gather as much information as possible for reference. Past problems that seem unrelated may also help in some cases.
      3. The following 5 items are important points for problem analysis:

        What
        		Vehicle model, system name
        When
        		Date, time, occurrence frequency
        Where
        		Whether the problem occurs at a specific location.
        Under what conditions?
        		Whether the doors were locked or unlocked, whether the engine switch was on, whether the engine was running.
        How did it happen?
        		Problem symptoms

    NEXT


    3.INSPECT BATTERY VOLTAGE

    1. Measure the battery voltage.

      Standard voltage:
      11 to 14 V
      If the voltage is below 11 V, recharge or replace the battery before proceeding to the next step.
      HINT:
      A simple method to determine whether the battery is discharged is to operate the horn.

    NEXT


    4.TURN ENGINE SWITCH ON (IG)
      NOTICE:
      When using the GTS with the engine switch off, connect the GTS to the DLC3 and turn a courtesy light switch on and off at intervals of 1.5 seconds or less until communication between the GTS and the vehicle begins. Then select Model Code "KEY REGIST" under manual mode and enter the following menus: Body Electrical / Entry&Start using the GTS, periodically turn a courtesy light switch on and off at intervals of 1.5 seconds or less to maintain communication between the GTS and the vehicle.

    NEXT


    5.INSPECT COMMUNICATION FUNCTION OF CAN COMMUNICATION SYSTEM*

    1. Using the GTS, check for CAN communication system DTCs.

      1. for LHD with Central Gateway ECU: Click here
      2. for RHD with Central Gateway ECU: Click here
      3. for LHD without Central Gateway ECU: Click here
      4. for RHD without Central Gateway ECU: Click here
      Result
      Result
      		Proceed to
      CAN DTCs are not output
      		A
      CAN DTCs are output (for LHD with Central Gateway ECU)
      		B
      CAN DTCs are output (for RHD with Central Gateway ECU)
      		C
      CAN DTCs are output (for LHD without Central Gateway ECU)
      		D
      CAN DTCs are output (for RHD without Central Gateway ECU)
      		E


    		B.
    GO TO CAN COMMUNICATION SYSTEM (Click here)

    		C.
    GO TO CAN COMMUNICATION SYSTEM (Click here)

    		D.
    GO TO CAN COMMUNICATION SYSTEM (Click here)

    		E.
    GO TO CAN COMMUNICATION SYSTEM (Click here)
    A


    6.INSPECT COMMUNICATION FUNCTION OF LIN COMMUNICATION SYSTEM*

    1. Using the GTS, check for LIN communication system DTCs (Click here).

      Result
      Result
      		Proceed to
      LIN DTCs are not output
      		A
      LIN DTCs are output
      		B



    		B.
    GO TO LIN COMMUNICATION SYSTEM (Click here)
    A


    7.CHECK FOR DTC*

    1. Check for DTCs and make a note of any codes that are output (Click here).

    2. Based on the DTCs output above, proceed to each diagnostic procedure.

      Result
      Result
      		Proceed to
      DTCs are not output
      		A
      Engine DTCs are output (for 3UR-FE)
      		B
      Engine DTCs are output (for 1UR-FE)
      		C
      Engine DTCs are output (for 1GR-FE)
      		D
      Engine DTCs are output (for 1VD-FTV (w/ DPF))
      		E
      Engine DTCs are output (for 1VD-FTV (w/o DPF))
      		F
      Steering lock system DTCs are output
      		G
      Engine immobiliser system DTCs are output
      		H



    		B.
    GO TO DIAGNOSTIC TROUBLE CODE CHART (Click here)

    		C.
    GO TO DIAGNOSTIC TROUBLE CODE CHART (Click here)

    		D.
    GO TO DIAGNOSTIC TROUBLE CODE CHART (Click here)

    		E.
    GO TO DIAGNOSTIC TROUBLE CODE CHART (Click here)

    		F.
    GO TO DIAGNOSTIC TROUBLE CODE CHART (Click here)

    		G.
    GO TO DIAGNOSTIC TROUBLE CODE CHART (Click here)

    		H.
    GO TO DIAGNOSTIC TROUBLE CODE CHART (Click here)
    A


    8.PROBLEM SYMPTOMS TABLE

    1. Refer to Problem Symptoms Table (Click here).

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



    		B.
    ADJUST, REPAIR OR REPLACE IN ACCORDANCE WITH PROBLEM SYMPTOMS TABLE
    A


    9.OVERALL ANALYSIS AND TROUBLESHOOTING*

    1. Data List / Active Test (Click here)

    2. Terminals of ECU (Click here)


    NEXT


    10.REPAIR OR REPLACE
      HINT:
      If the certification ECU (smart key ECU assembly), ID code box (immobiliser code ECU), steering lock ECU (steering lock actuator assembly), main body ECU (multiplex network body ECU), ECM, or electrical key transmitter sub-assembly are replaced, refer to Service Bulletin.

    NEXT


    11.CHECK FOR DTC*

    1. Clear the DTCs (Click here).

    2. Check for DTCs (Click here).

      HINT:
      Before checking for DTCs, perform the "DTC Output Confirmation Operation" of each diagnostic procedure.
      Result
      Result
      		Proceed to
      DTCs are not output
      		A
      Engine immobiliser system DTCs are output
      		B


    		B.
    GO TO DIAGNOSTIC TROUBLE CODE CHART (Click here)
    A

    END