WIRELESS DOOR LOCK CONTROL SYSTEM HOW TO PROCEED WITH TROUBLESHOOTING

Note

When using the GTS with the engine switch off to troubleshoot:

Connect the GTS to the DLC3 and turn a courtesy light switch on and off at 1.5-seconds intervals until communication between the GTS and vehicle begins.

Tech Tips


  • The wireless door lock control system troubleshooting procedure is based on the premise that the power door lock control system is operating normally. Check the power door lock control system first before troubleshooting the wireless door lock control system. Use this procedure to troubleshoot the wireless door lock control system.

  • *: Use the GTS.


  1. VEHICLE BROUGHT TO WORKSHOP


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  2. CUSTOMER PROBLEM ANALYSIS

    Tech Tips


    • 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.

    • Gather as much information as possible for reference. Past problems that seem unrelated may also help in some cases.

    • The following 5 items are important points in the problem analysis:

    What Vehicle model, system name
    When Date, time, occurrence frequency
    Where Road conditions
    Under what conditions? Running conditions, driving conditions, weather conditions
    How did it happen? Problem symptoms

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  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.


      NEXT

  4. INSPECT COMMUNICATION FUNCTION OF CAN COMMUNICATION SYSTEM*


    1. Use the GTS to check if the CAN communication system is functioning normally.


      Result
      Result Proceed to
      CAN DTC is not output A
      CAN DTC is output (for LHD) B
      CAN DTC is output (for RHD) C

      B

      Go to CAN COMMUNICATION SYSTEM Click here

      C

      Go to CAN COMMUNICATION SYSTEM Click here

      A

  5. CHECK DTC OUTPUT (WIRELESS DOOR LOCK CONTROL SYSTEM)*


    1. Using the GTS, check for DTCs Click here.

      Result
      Result Proceed to
      DTC B1242 is not output A
      DTC B1242 is output B

      B

      Go to DIAGNOSTIC TROUBLE CODE CHART Click here

      A

  6. 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

  7. OVERALL ANALYSIS AND TROUBLESHOOTING*


    1. Operation Check Click here.

    2. Terminals of ECU Click here.

    3. Data List / Active Test Click here.


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  8. REPAIR OR REPLACE


    NEXT

  9. CONFIRMATION TEST


    NEXT
    END