WIRELESS DOOR LOCK CONTROL SYSTEM (w/ Smart Entry and Start System) DIAGNOSIS SYSTEM


  1. DESCRIPTION

    The ECU stores trouble codes when malfunctions occur.

    The diagnostic system allows for reading of the trouble codes from the DLC3.

    Use the intelligent tester to help diagnose and repair the problem.

  2. CHECK DLC3


    1. Check the DLC3 Click here.

  3. INSPECT BATTERY VOLTAGE


    1. Measure the vehicle battery voltage.

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

    2. SELF-DIAGNOSTIC MODE (USING INTELLIGENT TESTER)


      1. Connect the intelligent tester to the DLC3.

      2. Turn the engine switch on (IG).

      3. Turn the intelligent tester on.

      4. Enter the following menus: Body / Main Body / Utility / Wireless Door Lock Diagnosis Mode.

      5. Proceed to the next step in accordance with the prompts on the intelligent tester screen.

        Tech Tips

        The electrical key transmitter sub-assembly uses 2 different frequencies alternately for communication. When in self diagnostic mode, one of the channels can be selected or the channels can be automatically switched.

      6. A01EWX7E12

        Check that the system has switched to self-diagnostic mode by checking the wireless door lock buzzer output pattern.

      7. Check the diagnostic outputs when the electrical key transmitter sub-assembly switch is held down. The diagnostic outputs can be checked by the interior light and wireless door lock buzzer patterns.

        A01ET4ME17
      3. Result
      Wireless Door Lock Buzzer Output Suspected Area
      A Normal (No malfunction)
      B Register wireless code
      C Wave interference or malfunction of a related component