WIRELESS DOOR LOCK CONTROL SYSTEM (w/o Smart Key System) Only Wireless Control Function is Inoperative

DESCRIPTION

The door control receiver receives signals from the door control transmitter module set sub-assembly and sends these signals to the main body ECU (multiplex network body ECU). The main body ECU (multiplex network body ECU) then controls all doors by sending lock/unlock signals to each door, and sends hazard flasher signals to the combination meter assembly.

WIRING DIAGRAM

A01HPPWE01
A01HME6E01

INSPECTION PROCEDURE

Note


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

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

  • It is necessary to perform registration Click here of the transmitter IDs into the door control receiver if the door control receiver has been replaced.*

  • 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 and wireless function performance may be affected.


    • *: w/ Tire Pressure Warning System

PROCEDURE


  1. CHECK POWER DOOR LOCK OPERATION


    1. When the door control switch on the power window regulator master switch assembly is operated, check that the locked doors unlock Click here.

      OK
      Locked doors unlock.

    NG
    OK
  2. CHECK KEY REMINDER WARNING SYSTEM


    1. Check that the key reminder warning buzzer operates normally.

      OK
      Key reminder warning buzzer operates normally.

    NG
    OK
  3. CHECK DOOR CONTROL TRANSMITTER MODULE SET SUB-ASSEMBLY


    1. When a known good registered door control transmitter module set sub-assembly is used, check that the wireless functions operate normally.

      Result
      Result Proceed to
      Wireless door lock/unlock function operates normally with a known good door control transmitter module set sub-assembly.*1 A
      Wireless door lock/unlock function operates normally with a known good door control transmitter module set sub-assembly.*2 B
      Wireless door lock/unlock function does not operate. C

      • *1: w/o Tire Pressure Warning System

      • *2: w/ Tire Pressure Warning System


    B
    C
    A
  4. CHECK TRANSMITTER BATTERY


    1. Check the transmitter battery level of the door control transmitter module set sub-assembly that was checked first.


      1. Press and hold the lock switch of the transmitter for 5 seconds and check the number of times that the transmitter LED illuminates.

        Result
        Result Proceed to
        Transmitter LED does not illuminate when switch is pressed and held A
        Transmitter LED illuminates 3 times or more when switch is pressed and held B
        Transmitter LED illuminates once or twice but not a third time C

    B
    C
    A
  5. CHECK TRANSMITTER BATTERY (VOLTAGE)


    1. Inspect the battery capacity.


      1. Remove the battery from the door control transmitter module set sub-assembly that does not operate Click here. Attach a lead wire (0.6 mm (0.0236 in.) in diameter or less including wire sheath) with tape or equivalent to the negative (-) terminal.

        Note

        Do not wrap the lead wire around a terminal, wedge it between the terminals, or solder it. A terminal may be deformed or damaged, and the battery will not be able to be installed correctly.

    2. A01HOP6E01
      Text in Illustration
      *A w/ Tire Pressure Warning System
      *B w/o Tire Pressure Warning System

      Carefully pull the lead wire out from the position shown in the illustration and install the previously removed transmitter battery.

      Note

      When replacing the transmitter battery, before starting work, remove static electricity that has built up in the body by touching, for example, the vehicle to prevent the electrical key transmitter from being damaged.

    3. A01HNUVE01
      Text in Illustration
      *A w/ Tire Pressure Warning System
      *B w/o Tire Pressure Warning System

      Check the transmitter battery voltage.

      Tech Tips

      Measure the transmitter battery voltage while pressing the lock or unlock switch on the door control transmitter module set sub-assembly.

      Standard Voltage
      Item Content
      Tester Connection Transmitter battery positive (+) - Transmitter battery negative (-)
      Condition Ignition switch off, all doors closed and lock or unlock switch is pressed
      Specified Condition

      2.5 to 3.2 V*1

      2.2 to 3.2 V*2


      • *1: w/ Tire Pressure Warning System

      • *2: w/o Tire Pressure Warning System


    NG
    OK
  6. CHECK WAVE ENVIRONMENT


    1. Bring the door control transmitter module set sub-assembly near the door control receiver, and perform a wireless operation check.

      Tech Tips


      • When the door control transmitter module set sub-assembly is brought near the door control receiver, the possibility of wave interference decreases, and it can be determined if wave interference is causing the problem symptom.

      • If the inspection result is that the problem only occurs in certain locations or times of day, the possibility of wave interference is high. Also, added vehicle components may cause wave interference. If installed, remove them and perform the operation check.

      OK
      Wireless functions operate normally.

    NG
    OK
  7. SWITCH TO SELF-DIAGNOSTIC MODE


    1. Switch to self-diagnostic mode by operating the ignition key cylinder.


      1. Make sure that the vehicle is in its initial condition. Then insert the key into the ignition key cylinder and remove it.

      2. Within 5 seconds after removing the key, insert the key into the ignition key cylinder (ignition switch off). Then turn the ignition switch to ON and off.

      3. Within 30 seconds after turning the ignition switch off, perform the following operation 9 times: turn the ignition switch to ON and then off.

        Note

        If the system cannot enter self-diagnostic mode, the system returns to normal mode.

        Tech Tips


        • Turning the ignition switch to ON after the above operations have been completed ends self-diagnostic mode.

        • Do not lock or unlock doors during self-diagnostic mode.

    2. A01HMVXE09

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

    3. A01HMVXE08

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


    NEXT
  8. CHECK SELF DIAGNOSTIC MODE

    A01HMUUE15

    1. Inspect the diagnostic outputs when the door control transmitter module set sub-assembly switch is held down. The diagnostic outputs can be checked by the flash patterns of the interior lights and the buzzer patterns of the wireless door lock buzzer.

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

    B
    C
    A
  9. 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.

    NG
    OK
  10. CHECK DOOR CONTROL RECEIVER (RESPONSE)


    1. Prepare the door control transmitter module set sub-assembly from another vehicle.

    2. Press and hold down the door control transmitter module set sub-assembly switch.

    3. Check that an unmatching recognition code is output.

      OK
      Unmatching recognition code is output.

    NG
    OK
  11. CHECK DOOR CONTROL RECEIVER (+B, GND)


    1. A01HOA9E03
      Text in Illustration
      *a

      Front view of wire harness connector

      (to Door Control Receiver)

      Disconnect the O25 door control receiver (w/ Tire Pressure Warning System).

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

      Standard Resistance
      Tester Connection Condition Specified Condition
      O25-12 (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
      O25-7 (+B) - Body ground Always 11 to 14 V
    4. A01HO9XE06
      Text in Illustration
      *a

      Front view of wire harness connector

      (to Door Control Receiver)

      Disconnect the O24 door control receiver (w/o Tire Pressure Warning System).

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

      Standard Resistance
      Tester Connection Condition Specified Condition
      O24-1 (GND) - Body ground Always Below 1 Ω
    6. Measure the voltage according to the value(s) in the table below.

      Standard Voltage
      Tester Connection Condition Specified Condition
      O24-5 (+B) - Body ground Always 11 to 14 V

    NG
    OK
  12. CHECK DOOR CONTROL RECEIVER (OUTPUT)


    1. Connect the O25 door control receiver connector.

    2. A01HQK8E22
      Text in Illustration
      *a

      Component with harness connected

      (Door Control Receiver)

      Measure the voltage according to the value(s) in the table below (w/ Tire Pressure Warning System).

      Standard Voltage
      Tester Connection Switch Condition Specified Condition
      O25-4 (RDA) - Body ground Ignition switch off, all doors closed and door control transmitter module set sub-assembly switch not pressed 11 to 14 V
      Ignition switch off, all doors closed and door control transmitter module set sub-assembly switch pressed Pulse generation
    3. Connect the O24 door control receiver connector.

    4. A01HMPKE03
      Text in Illustration
      *a

      Component with harness connected

      (Door Control Receiver)

      Measure the voltage according to the value(s) in the table below (w/o Tire Pressure Warning System).

      Standard Voltage
      Tester Connection Switch Condition Specified Condition
      O24-2 (RDA) - Body ground Ignition switch off, all doors closed and door control transmitter module set sub-assembly switch not pressed 11 to 14 V
      Ignition switch off, all doors closed and door control transmitter module set sub-assembly switch pressed Pulse generation
      Result
      Result Proceed to
      OK A
      NG (w/o Tire Pressure Warning System) B
      NG (w/ Tire Pressure Warning System) C

    B
    C
    A
  13. CHECK HARNESS AND CONNECTOR (MAIN BODY ECU (MULTIPLEX NETWORK BODY ECU) - DOOR CONTROL RECEIVER)


    1. Disconnect the I13 main body ECU (multiplex network body ECU) connector and the O25 or O24 door control receiver connector.

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

      Standard Resistance
      w/ Tire Pressure Warning System
      Tester Connection Condition Specified Condition
      I13-16 (RDA) - O25-4 (RDA) Always Below 1 Ω
      I13-16 (RDA) - Body ground Always 10 kΩ or higher
      I13-4 (PRG) - O25-5 (PRG) Always Below 1 Ω
      I13-4 (PRG) - Body ground Always 10 kΩ or higher
      Standard Resistance
      w/o Tire Pressure Warning System
      Tester Connection Condition Specified Condition
      I13-16 (RDA) - O24-2 (RDA) Always Below 1 Ω
      I13-16 (RDA) - Body ground Always 10 kΩ or higher
      I13-4 (PRG) - O24-3 (PRG) Always Below 1 Ω
      I13-4 (PRG) - Body ground Always 10 kΩ or higher

    NG
    OK
  14. REPLACE DOOR CONTROL RECEIVER


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


    NEXT
  15. REGISTER RECOGNITION CODE


    1. Perform the Registration procedure Click here.


    NEXT
  16. CHECK DOOR CONTROL RECEIVER (OPERATION)


    1. Check that the doors can be locked and unlocked by using the door control transmitter module set sub-assembly lock and unlock switches.

      OK
      Doors can be locked and unlocked using door control transmitter module set sub-assembly.

    NG
    OK