WIRELESS DOOR LOCK CONTROL SYSTEM (w/o Smart 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 (driver side junction block assembly). The main body ECU (driver side junction block assembly) then controls all doors by sending lock/unlock signals to each door, and sends hazard flasher relay signals to the turn signal flasher assembly (hazard warning lights).

WIRING DIAGRAM

A01EMOWE09

INSPECTION PROCEDURE

PROCEDURE


  1. CHECK POWER DOOR LOCK OPERATION


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

      OK
      Locked doors unlock.

    NG

    GO TO POWER DOOR LOCK CONTROL SYSTEM Click here

    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

    GO TO KEY REMINDER WARNING SYSTEM Click here

    OK

  3. CHECK DOOR CONTROL TRANSMITTER ASSEMBLY


    1. When known good registered door control transmitter 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. A
      Wireless door LOCK/UNLOCK function does not operate. B

    B

    CHECK WAVE ENVIRONMENT Click here

    A

  4. CHECK TRANSMITTER BATTERY


    1. Inspect the battery capacity.


      1. Remove the battery from the electrical key transmitter 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. A01EIQP

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

    3. A01EJ5EE03

      Using an oscilloscope, check the transmitter battery voltage waveform.

      Tech Tips

      Measure the transmitter battery voltage while pressing the LOCK or UNLOCK switch on the transmitter.

      Standard Voltage
      Item Content
      Tester Connection Battery positive (+) - Battery negative (-)
      Tool Setting 0.5 V/DIV., 100 ms/DIV.
      Condition Ignition switch off, all doors closed and LOCK or UNLOCK switch is pressed
      Specified Condition 2.2 to 3.2 V (Refer to the waveform)

    NG

    REPLACE TRANSMITTER BATTERY Click here

    OK

    REPLACE DOOR CONTROL TRANSMITTER MODULE

  5. CHECK WAVE ENVIRONMENT


    1. Bring the transmitter near the door control receiver, and perform a wireless operation check.

      Tech Tips


      • When the transmitter 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

    SWITCH TO SELF-DIAGNOSTIC MODE Click here

    OK

    END (AFFECTED BY WAVE INTERFERENCE)

  6. 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. A01EJESE01

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

    3. A01EJESE02

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


    NEXT

  7. CHECK SELF DIAGNOSTIC MODE

    A01EKVFE10

    1. Inspect the diagnostic outputs when the door control transmitter 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

    REGISTER RECOGNITION CODE Click here

    C

    CHECK DOOR CONTROL RECEIVER (RESPONSE) Click here

    A

    REPLACE MAIN BODY ECU (DRIVER SIDE JUNCTION BLOCK ASSEMBLY) Click here

  8. 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

    REPLACE DOOR CONTROL RECEIVER Click here

    OK

    END (GO TO OPERATION CHECK)

  9. CHECK DOOR CONTROL RECEIVER (RESPONSE)


    1. Prepare the door control transmitter from another vehicle.

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

    3. Check that an unmatching recognition code is output.

      OK
      Unmatching recognition code is output.

    NG

    CHECK DOOR CONTROL RECEIVER (+B, GND) Click here

    OK

    REPLACE DOOR CONTROL TRANSMITTER MODULE

  10. CHECK DOOR CONTROL RECEIVER (+B, GND)


    1. A01EK9WE27
      Text in Illustration
      *1

      Front view of wire harness connector

      (to Door Control Receiver)

      Disconnect the M15 door control receiver connector.

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

      Standard Resistance
      Tester Connection Condition Specified Condition
      M15-1 (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
      M15-5 (+B) - Body ground Always 11 to 14 V

    NG

    REPAIR OR REPLACE HARNESS OR CONNECTOR

    OK

  11. CHECK DOOR CONTROL RECEIVER (OUTPUT)


    1. A01EMHBE09
      Text in Illustration
      *1

      Component with harness connected

      (Door Control Receiver)

      Reconnect the M15 door control receiver connector.

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

      Standard Voltage
      Tester Connection Condition Specified Condition
      M15-2 (RDA) - Body ground Ignition switch off, all doors closed and transmitter switch not pressed 11 to 14 V
      Ignition switch off, all doors closed and transmitter switch pressed Pulse generation

    NG

    REPLACE DOOR CONTROL RECEIVER Click here

    OK

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


    1. A01ELJ1E03
      Text in Illustration
      *1

      Front view of wire harness connector

      (to Main Body ECU (Driver Side Junction Block Assembly))
      *2

      Front view of wire harness connector

      (to Door Control Receiver)

      Disconnect the D49 main body ECU (driver side junction block assembly) connector.

    2. Disconnect the M15 door control receiver connector.

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

      Standard Resistance
      Tester Connection Condition Specified Condition
      D49-12 (RDA) - M15-2 (RDA) Always Below 1 Ω
      D49-12 (RDA) - Body ground Always 10 kΩ or higher
      D49-10 (PRG) - M15-3 (PRG) Always Below 1 Ω
      D49-10 (PRG) - Body ground Always 10 kΩ or higher

    NG

    REPAIR OR REPLACE HARNESS OR CONNECTOR

    OK

  13. REPLACE DOOR CONTROL RECEIVER


    1. Temporarily replace the door lock control receiver with a new one Click here.


    NEXT

  14. REGISTER RECOGNITION CODE


    1. Perform the Registration procedure Click here.


    NEXT

  15. CHECK DOOR CONTROL RECEIVER (OPERATION)


    1. Check that the doors can be locked and unlocked by using the transmitter LOCK and UNLOCK switches.

      OK
      Doors can be locked and unlocked using transmitter.

    NG

    REPLACE MAIN BODY ECU (DRIVER SIDE JUNCTION BLOCK ASSEMBLY) Click here

    OK

    END (DOOR CONTROL RECEIVER WAS DEFECTIVE)