WIRELESS DOOR LOCK CONTROL SYSTEM(w/o Entry and Start System) Only Wireless Control Function is Inoperative

DESCRIPTION

The door control receiver receives signals from the transmitter and sends these signals to the main body ECU. The main body ECU then controls all the doors by sending lock/unlock signals to each door.

WIRING DIAGRAM


  1. w/o Tire Pressure Warning System

    A01X1ICE05
    *a MPX-B NO.1
    *b from Battery
    *c Main Body ECU
    *d Door Control Receiver

  2. w/ Tire Pressure Warning System

    A01X7D9E01

CAUTION / NOTICE / HINT

Note


  • Inspect the fuses for circuits related to this system before performing the following inspection procedure.

  • When replacing the door control receiver, refer to the registration procedures Click here.

  • When replacing or inspecting the door control receiver and wire harness, do not change the position or length of the wire harness. If the wire harness is too close to the door control receiver, wireless function performance may be affected.

  • When replacing the door control receiver, read the transmitter IDs (tire pressure warning system) stored in the old ECU using the GTS and write them down before removal.

  • It is necessary to perform initialization after registration of the transmitter IDs into the door control receiver or tire pressure monitor receiver assembly if the door control receiver or tire pressure monitor receiver assembly has been replaced.*

    for Initialization:

    Click here

    for Registration:

    Click here

  • First, confirm that there are no malfunctions in the tire pressure warning system. Refer to the How to Proceed with Troubleshooting procedure.

    Click here

  • When replacing the main body ECU, make sure to replace it with a new one.


    • *: w/ Tire Pressure Warning System

PROCEDURE


  1. CHECK POWER DOOR LOCK OPERATION


    1. Check the power door lock operation.

      Click here

      OK
      Each door locks and unlocks normally.

    NG

    GO TO POWER DOOR LOCK CONTROL SYSTEM Click here

    OK

  2. CHECK KEY REMINDER WARNING OPERATION


    1. Check the key reminder warning buzzer operation.

      Click here

      Tech Tips

      If the key reminder warning buzzer is functioning normally, it can be assumed that the unlock warning switch is also functioning normally.

      OK
      Key reminder warning buzzer operates normally.

    NG

    GO TO KEY REMINDER WARNING SYSTEM Click here

    OK

  3. CHECK DOOR CONTROL TRANSMITTER ASSEMBLY


    1. Check whether the wireless door lock control functions operate normally with another registered transmitter.

      Click here

      OK
      Wireless door lock control functions operate normally.

    NG

    CHECK FOR ELECTRICAL NOISE Click here

    OK

  4. CHECK TRANSMITTER BATTERY


    1. Remove the battery from the inoperative door control transmitter assembly.

      Click here

    2. Measure the voltage according to the value(s) in the table below.

      Standard Voltage
      Tester Connection Condition Specified Condition
      Battery positive (+) - Battery negative (-) Always 2.5 to 3.2 V

    OK

    REPLACE DOOR CONTROL TRANSMITTER

    NG

    REPLACE TRANSMITTER BATTERY Click here

  5. CHECK FOR ELECTRICAL NOISE


    1. Move the transmitter in the vicinity of the door control receiver.

      Tech Tips

      Refer to Parts Location for the location of the door control receiver.

      Click here

    2. Press and hold either the lock or unlock transmitter switch for 1 second, and check that the doors are locked or unlocked accordingly.

      OK
      Wireless door lock control functions operate normally.

      Tech Tips


      • Check if electrical noise is the cause by moving the door control transmitter assembly closer to the door control receiver. Moving closer will decrease the effects of electrical noise.

      • If the operation check can be performed normally, there is a high probability that electrical noise or a decrease in output from the door control transmitter assembly is the cause of the malfunction. There is a high probability that electrical noise is the cause if the problem occurs only in a certain location or only during a certain time of day. Also, custom components may be causing electrical noise. If custom components are installed in the vehicle, remove them and perform the operation check again.

      Result
      Result Proceed to
      OK A
      NG (for Light Type) B
      NG (for Buzzer Type) C

    A

    FIND CAUSE OF ELECTRICAL NOISE AND REMOVE IT

    C

    SWITCH TO SELF DIAGNOSTIC MODE Click here

    B

  6. SWITCH TO SELF DIAGNOSTIC MODE


    1. Using GTS


      1. Connect the GTS to the DLC3.

      2. Turn the Ignition switch to ON.

      3. Enter the following menus: Body Electrical / Main Body / Utility / Wireless Diagnosis Mode.

        Body Electrical > Main Body > Utility
        Tester Display
        Wireless Door Lock Diagnosis Mode

      4. Proceed to the next step in accordance with the prompts on the GTS screen.

      5. A01X1RFE36
        Interior Light Output
        *1 On
        *2 Off
        *3 T1: 0.25 seconds
        *4 T2: 0.5 seconds

        Check that the system has switched to self-diagnostic mode by checking the interior light output pattern.

    2. Not using GTS (for LHD)


      1. Insert and remove the key into/from the ignition key cylinder one time (Insert → Remove → Insert → Remove) and then ignition switch turn ON to off within 5 seconds.

      2. Perform the following operations within 30 seconds.

        (1) Turn the ignition switch from ON to off at nine times.

      3. A01X1RFE37
        Interior Light Output
        *1 On
        *2 Off
        *3 T1: 0.25 seconds
        *4 T2: 0.5 seconds

        Check that the system has switched to self-diagnostic mode by checking the interior light output pattern.


    NEXT

  7. CHECK SELF DIAGNOSTIC MODE


    1. Inspect the diagnostic outputs when the door control transmitter assembly switch is pressed. The diagnostic outputs can be checked by the flash patterns of the interior lights.

      A01WZF2E01
      Result
      Result Proceed to
      Normal wave (light flash pattern) is output (A). A
      Unmatching recognition code is output (B). B
      No diagnostic outputs (C). C

    A

    REPLACE MAIN BODY ECU for LHD: Click here for RHD: Click here

    B

    CHECK REGISTER RECOGNITION CODE Click here

    C

    CHECK DOOR CONTROL RECEIVER (RESPONSE) Click here

  8. SWITCH TO SELF DIAGNOSTIC MODE


    1. Using GTS


      1. Connect the GTS to the DLC3.

      2. Turn the Ignition switch to ON.

      3. Enter the following menus: Body Electrical / Main Body / Utility / Wireless Diagnosis Mode.

        Body Electrical > Main Body > Utility
        Tester Display
        Wireless Door Lock Diagnosis Mode

      4. Proceed to the next step in accordance with the prompts on the GTS screen.

      5. A01X1RFE79
        Wireless Door Lock Buzzer Output
        *1 ON
        *2 OFF
        *3 T1: 0.13 seconds
        *4 T2: 0.25 seconds

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

    2. Not using GTS (for LHD)


      1. Insert and remove the key into/from the ignition key cylinder one time (Insert → Remove → Insert → Remove) and then ignition switch turn ON to off within 5 seconds.

      2. Perform the following operations within 30 seconds.

        (1) Turn the ignition switch from ON to off at nine times.

      3. A01X1RFE79
        Wireless Door Lock Buzzer Output
        *1 ON
        *2 OFF
        *3 T1: 0.13 seconds
        *4 T2: 0.25 seconds

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


    NEXT

  9. CHECK SELF DIAGNOSTIC MODE


    1. Inspect the diagnostic outputs when the door control transmitter assembly switch is pressed. The diagnostic outputs can be checked by the the sound patterns of the wireless door lock buzzer.

      A01X7HDE43
      Result
      Result Proceed to
      Normal wave (sound pattern) is output (A). A
      Unmatching recognition code is output (B). B
      No diagnostic outputs (C). C

    A

    REPLACE MAIN BODY ECU for LHD: Click here for RHD: Click here

    C

    CHECK DOOR CONTROL RECEIVER (RESPONSE) Click here

    B

  10. CHECK REGISTER RECOGNITION CODE


    1. Check that the system can be switched to rewrite mode or add mode, and that a recognition code can be registered.

      Click here

      OK
      Recognition code can be registered.

    OK

    GO TO OPERATION CHECK Click here

    NG

    REPLACE DOOR CONTROL RECEIVER Click here

  11. CHECK DOOR CONTROL RECEIVER (RESPONSE)


    1. Prepare the door control transmitter assembly from another vehicle.

    2. Press and hold down the door control transmitter assembly switch.

    3. Check that an unmatching recognition code is output.

      OK
      Unmatching recognition code is not output.

    NG

    REPLACE DOOR CONTROL TRANSMITTER

    OK

  12. CHECK HARNESS AND CONNECTOR (DOOR CONTROL RECEIVER - BATTERY AND BODY GROUND)


    1. A01X5DOE02
      Text in Illustration
      *a

      Front view of wire harness connector

      (to Door Control Receiver)

      Disconnect the L47 door control receiver connector.

    2. Measure the resistance according to the value(s) in the table below.

      Standard Resistance
      Tester Connection Condition Specified Condition
      L47-1 (GND) - Body ground Always Below 1 Ω

    3. Measure the voltage according to the value(s) in the table below.

      Standard Voltage
      Tester Connection Condition Specified Condition
      L47-5 (+B) - Body ground Always 11 to 14 V

    NG

    REPAIR OR REPLACE HARNESS OR CONNECTOR

    OK

  13. CHECK DOOR CONTROL RECEIVER (OUTPUT)


    1. Using an oscilloscope, check the waveform.

      A01X6EAE01
      Measurement Condition
      Item Content
      Tester Connection L47-2 (RDA) - Body ground
      Tool Setting 10 V/DIV., 50 μs/DIV.
      Condition No key in ignition key cylinder, all doors closed and transmitter switch off → on
      OK
      Waveform is output normally (refer to illustration).
      Result
      Result Proceed to
      OK (w/o Tire Pressure Warning System) A
      OK (w/ Tire Pressure Warning System) B
      NG C

    B

    CHECK HARNESS AND CONNECTOR (DOOR CONTROL RECEIVER - TIRE PRESSURE MONITOR RECEIVER ASSEMBLY) Click here

    C

    REPLACE DOOR CONTROL RECEIVER Click here

    A

  14. CHECK HARNESS AND CONNECTOR (DOOR CONTROL RECEIVER - MAIN BODY ECU)


    1. Disconnect the L47 door control receiver connector.

    2. Disconnect the E118 main body ECU connector.

    3. Measure the resistance according to the value(s) in the table below.

      Standard Resistance
      Tester Connection Condition Specified Condition
      L47-2 (RDA) - E118-4 (RDA) Always Below 1 Ω
      L47-3 (PRG) - E118-5 (PRG) Always Below 1 Ω
      L47-2 (RDA) - Body ground Always 10 kΩ or higher
      L47-3 (PRG) - Body ground Always 10 kΩ or higher

    NG

    REPAIR OR REPLACE HARNESS OR CONNECTOR

    OK

  15. REPLACE DOOR CONTROL RECEIVER


    1. Temporarily replace the door control receiver with a new or known good one.

      Click here


    NEXT

  16. CHECK REGISTER RECOGNITION CODE


    1. Perform the Registration procedure.

      Click here


    NEXT

  17. CHECK DOOR CONTROL RECEIVER (OPERATION)


    1. Check that the doors can be locked and unlocked by the door control transmitter assembly lock and unlock switches.

      OK
      Doors can be locked and unlocked by the door control transmitter assembly.

    OK

    END (DOOR CONTROL RECEIVER WAS DEFECTIVE)

    NG

    REPLACE MAIN BODY ECU for LHD: Click here for RHD: Click here

  18. CHECK HARNESS AND CONNECTOR (DOOR CONTROL RECEIVER - TIRE PRESSURE MONITOR RECEIVER ASSEMBLY)


    1. Disconnect the L47 door control receiver connector.

    2. Disconnect the L75 tire pressure monitor receiver assembly connector.

    3. Measure the resistance according to the value(s) in the table below.

      Standard Resistance
      Tester Connection Condition Specified Condition
      L47-2 (RDA) - L75-10 (RDA3) Always Below 1 Ω
      L47-3 (PRG) - L75-9 (PRG3) Always Below 1 Ω
      L47-2 (RDA) - Body ground Always 10 kΩ or higher
      L47-3 (PRG) - Body ground Always 10 kΩ or higher

    NG

    REPAIR OR REPLACE HARNESS OR CONNECTOR

    OK

  19. CHECK HARNESS AND CONNECTOR (TIRE PRESSURE MONITOR RECEIVER ASSEMBLY - MAIN BODY ECU)


    1. Disconnect the L75 tire pressure monitor receiver assembly connector.

    2. Disconnect the E118 main body ECU connector.

    3. Measure the resistance according to the value(s) in the table below.

      Standard Resistance
      Tester Connection Condition Specified Condition
      L75-4 (RDA2) - E118-4 (RDA) Always Below 1 Ω
      L75-5 (PRG2) - E118-5 (PRG) Always Below 1 Ω
      L75-4 (RDA2) - Body ground Always 10 kΩ or higher
      L75-5 (PRG2) - Body ground Always 10 kΩ or higher

    NG

    REPAIR OR REPLACE HARNESS OR CONNECTOR

    OK

  20. REPLACE DOOR CONTROL RECEIVER


    1. Temporarily replace the door control receiver with a new or known good one.

      Click here


    NEXT

  21. CHECK REGISTER RECOGNITION CODE


    1. Perform the Registration procedure.

      Click here


    NEXT

  22. CHECK DOOR CONTROL RECEIVER (OPERATION)


    1. Check that the doors can be locked and unlocked by the door control transmitter assembly lock and unlock switches.

      OK
      Doors can be locked and unlocked by the door control transmitter assembly.

    OK

    END (DOOR CONTROL RECEIVER WAS DEFECTIVE)

    NG

  23. REPLACE TIRE PRESSURE MONITOR RECEIVER ASSEMBLY


    1. Temporarily replace the tire pressure monitor receiver assembly with a new or known good one.

      Click here


    NEXT

  24. CHECK REGISTER RECOGNITION CODE


    1. Perform the Registration procedure.

      Click here


    NEXT

  25. CHECK DOOR CONTROL RECEIVER (OPERATION)


    1. Check that the doors can be locked and unlocked by the door control transmitter assembly lock and unlock switches.

      OK
      Doors can be locked and unlocked by the door control transmitter assembly.

    OK

    END (TIRE PRESSURE MONITOR RECEIVER ASSEMBLY WAS DEFECTIVE)

    NG

    REPLACE MAIN BODY ECU Click here