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. The main body ECU then controls all doors by sending lock/unlock signals to each door, and sends hazard flasher relay signals to the turn signal flasher relay (hazard warning lights).

INSPECTION PROCEDURE

PROCEDURE

1. Click here

   CHECK WIRELESS DOOR LOCK CONTROL FUNCTIONS

   
   

   1. Check the wireless door lock control system function (Click here).

      Result
      Result Proceed to The wireless door LOCK/UNLOCK function does not operate with transmitter A The power back door function does not operate with transmitter B The glass hatch function does not operate with transmitter C

   
   
   • AClick here
   • BClick here
   • CClick here
2. Click here

   CHECK DOOR CONTROL TRANSMITTER

   
   

   1. When another registered door control transmitter is used, check that the wireless operates normally.

      Result
      Result Proceed to Wireless door LOCK/UNLOCK function and door control transmitter that did not operate is electrical key transmitter A Wireless door LOCK/UNLOCK function function does not operate B

   
   
   • AClick here
   • BClick here
3. Click here

   CHECK TRANSMITTER LED ILLUMINATION

   
   

   1. Check that the transmitter's LED illuminates 3 times when the switch is pressed 3 times.

      Result
      Result Proceed to Transmitter's LED does not illuminate 3 times when switch is pressed 3 times A Transmitter's LED illuminates 3 times when switch is pressed 3 times B The transmitter's LED does not illuminate the second or third time C

      Tip:

      If the transmitter's LED does not illuminate the second or third time, replace the transmitter battery as it is depleted.

   
   
   • AClick here
   • BClick here
   • CClick here
4. Click here

   INSPECT TRANSMITTER BATTERY

   
   

   1. Electrical key transmitter

      
      
      1. 

         Remove the battery from the electrical key transmitter that does not operate. 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 (Click here).

         Note:

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

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

      3. 

         Using an oscilloscope, check the transmitter battery voltage waveform.

         Tip:

         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 switch pushed Specified Condition 2.2 to 3.2 V (Refer to the waveform)

   
   
   • OKClick here
   • NGClick here
5. Click here

   CHECK ROOM LIGHT ASSEMBLY

   
   

   1. Check that the room light illumination operates normally.

      OK
      Room light operation normally.

   
   
   • OKClick here
   • NGClick here
6. Click here

   SWITCH TO SELF-DIAGNOSTIC MODE

   
   
   1. 

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

      
      

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

      2. Within 5 seconds of removing the key, insert the key into the ignition key cylinder (ignition switch OFF). Then turn the ignition switch to the ON position and then OFF.

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

         Note:

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

         Tip:
         

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

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

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

      OK
      Flash pattern is same as illustration.

   
   
   • OKClick here
   • NGClick here
7. Click here

   CHECK BY SELF DIAGNOSTIC MODE

   
   

   1. Inspect the diagnosis outputs when the door control transmitter switch is held down. The diagnosis outputs can be checked by the flash patterns of the room light.

      Result
      Result Proceed to Unmatching recognition code is output A Normal waves (light flash patterns) are output B No diagnosis outputs C

   
   
   • AClick here
   • BClick here
   • CClick here
8. Click here

   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.

   
   
   • OKClick here
   • NGClick here
9. Click here

   CHECK DOOR CONTROL RECEIVER (RESPONSE)

   
   

   1. Prepare the door control transmitter of another vehicle.

   2. Held down the door control transmitter^,s switch.

   3. Check that an unmatching recognition code is output.

      OK
      Unmatching recognition code is output.

   
   
   • OKClick here
   • NGClick here
10. Click here

    REPLACE DOOR CONTROL RECEIVER

    
    

    1. Temporarily replace the door lock control receiver with a new or normally functioning one (Click here).

    
    
    • NEXTClick here
11. Click here

    REGISTER RECOGNITION CODE

    
    

    1. Perform the REGISTRATION procedures (Click here).

    
    
    • NEXTClick here
12. Click here

    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 with transmitter.

    
    
    • OKClick here
    • NGClick here
13. Click here

    INSPECT UNLOCK WARNING SWITCH ASSEMBLY

    
    
    1. 

       Remove the unlock warning switch (Click here).

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

       Standard resistance
       Tester Connection Switch Condition Specified Condition 1 - 2 Free 10 kΩ or higher Pushed Below 1 Ω

    3. Reconnect the unlock warning switch.

    
    
    • OKClick here
    • NGClick here
14. Click here

    CHECK HARNESS AND CONNECTOR (UNLOCK WARNING SWITCH - MAIN BODY ECU AND BODY GROUND)

    
    

    1. Disconnect the D16 unlock warning switch connector.

    2. Disconnect the D9 main body ECU connector.

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

       Standard resistance
       Tester Connection Condition Specified Condition D16-1 - D9-5 (KSW) Always Below 1 Ω D16-2 - Body ground D9-5 (KSW) or D16-1 - Body ground Always 10 kΩ or higher

    4. Reconnect the unlock warning switch connector.

    5. Reconnect the main body ECU connector

    
    
    • OKClick here
    • NGClick here
15. Click here

    CHECK DOOR CONTROL RECEIVER (OUTPUT)

    
    

    1. for LHD:

       
       
       1. 

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

          Standard voltage
          Tester Connection Switch Condition Specified Condition O28-2 (RDA) - Body ground Transmitter switch ON → OFF (No key in ignition key cylinder, all doors closed) Below 1 V → 6 to 7 V → Below 1 V

    2. for RHD:

       
       
       1. 

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

          Standard voltage
          Tester Connection Switch Condition Specified Condition O38-2 (RDA) - Body ground Transmitter switch ON → OFF (No key in ignition key cylinder, all doors closed) Below 1 V → 6 to 7 V → Below 1 V

    
    
    • OKClick here
    • NGClick here
16. Click here

    REPLACE DOOR CONTROL TRANSMITTER

    
    

    1. Temporarily replace the door control transmitter module with a new or normally functioning one.

    
    
    • NEXTClick here
17. Click here

    REGISTER RECOGNITION CODE

    
    

    1. Perform the REGISTRATION procedures (Click here).

    
    
    • NEXTClick here
18. Click here

    CHECK DOOR CONTROL TRANSMITTER MODULE

    
    

    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 with transmitter.

    
    
    • OKClick here
    • NGClick here
19. Click here

    END (DOOR CONTROL TRANSMITTER MODULE IS DEFECTIVE)

20. Click here

    REPLACE TRANSMITTER BATTERYClick here

21. Click here

    Go to LIGHTING SYSTEMClick here

22. Click here

    REPLACE MAIN BODY ECU

23. Click here

    REPLACE DOOR CONTROL TRANSMITTER

24. Click here

    REPLACE UNLOCK WARNING SWITCH ASSEMBLYClick here

25. Click here

    REPAIR OR REPLACE HARNESS OR CONNECTOR

26. Click here

    REPLACE DOOR CONTROL RECEIVERClick here

27. Click here

    END

28. Click here

    END (DOOR CONTROL RECEIVER IS DEFECTIVE)

29. Click here

    GO TO POWER BACK DOOR SYSTEMClick here

30. Click here

    GO TO GLASS HATCH OPENER SYSTEMClick here