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Only Wireless Control Function is Inoperative [08/2017 - 08/2019]: Procedure

  1. CHECK POWER DOOR LOCK OPERATION 
    1. Check the power door lock operation.

      Refer to OPERATION CHECK [08/2017 - 08/2019]

      Result

      Proceed to
      Locked doors unlock
      Locked doors do not unlock

    Result: 

    Locked doors do not unlock 

    GO TO POWER DOOR LOCK CONTROL SYSTEM. Refer to  HOW TO PROCEED WITH TROUBLESHOOTING [08/2017 - 08/2019] 

    Result: 

    Locked doors unlock 

    See step  2

  2. CHECK KEY REMINDER WARNING SYSTEM 
    1. Check that the key reminder warning buzzer operates properly.

      Refer to OPERATION CHECK [08/2015 - 08/2019]

      Result

      Proceed to
      Key reminder warning buzzer operates properly
      Key reminder warning buzzer does not operates properly

    Result: 

    Key reminder warning buzzer does not operates properly 

    GO TO KEY REMINDER WARNING SYSTEM. Refer to  HOW TO PROCEED WITH TROUBLESHOOTING [08/2015 - 08/2019] 

    Result: 

    Key reminder warning buzzer operates properly 

    See step  3

  3. CHECK DOOR CONTROL TRANSMITTER ASSEMBLY 
    1. When a known good registered door control transmitter assembly is used, check that the wireless functions operate properly.

      Refer to OPERATION CHECK [08/2017 - 08/2019]

      Result

      Result Proceed to
      Wireless door lock/unlock/back door open function operates properly with a known good door control transmitter assembly. A
      Wireless door lock/unlock/back door open function does not operate. B

    Result: 

    B 

    See step  5

    Result: 

    A 

    See step  4

  4. CHECK TRANSMITTER BATTERY (VOLTAGE) 
    1. Remove the transmitter battery.

      Refer to REPLACEMENT [08/2017 - 08/2019]

    2. Inspect the transmitter battery capacity.

      Refer to INSPECTION [08/2017 - 08/2019]

      Result

      Proceed to
      OK
      NG

    Result: 

    OK 

    REPLACE DOOR CONTROL TRANSMITTER ASSEMBLY 

    Result: 

    NG 

    REPLACE TRANSMITTER BATTERY. Refer to  REPLACEMENT [08/2017 - 08/2019] 

  5. CHECK WAVE ENVIRONMENT 
    1. Bring the door control transmitter assembly near the door control receiver, and perform a wireless operation check.

      HINT: 

      • When the door control transmitter 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.

      Result

      Proceed to
      Wireless functions operate properly
      Wireless functions do not operate properly

    Result: 

    Wireless functions operate properly 

    END (AFFECTED BY WAVE INTERFERENCE) 

    Result: 

    Wireless functions do not operate properly 

    See step  6

  6. SWITCH TO SELF-DIAGNOSTIC MODE 
    1. Connect the Techstream to the DLC3.
    2. Turn the Ignition switch to ON.
    3. Turn the Techstream on.
    4. Enter the following menus: Body Electrical / Main Body / Utility / Wireless Diagnosis Mode.
    5. Proceed to the next step in accordance with the prompts on the Techstream screen.
    6. Check that the system has switched to self-diagnostic mode by checking the interior light output pattern.
      GTY382106Courtesy of © TOYOTA, LICENSE AGREEMENT TMS1002
    7. Check that the system has switched to self-diagnostic mode by checking the wireless door lock buzzer output pattern.
      GTY366895Courtesy of © TOYOTA, LICENSE AGREEMENT TMS1002

      Result

      Proceed to
      NEXT

    Result: 

    NEXT 

    See step  7

  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 light and wireless door lock buzzer patterns.
      GTY383980Courtesy of © TOYOTA, LICENSE AGREEMENT TMS1002

      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

    Result: 

    A 

    REPLACE MAIN BODY ECU (MULITPLEX NETWORK BODY ECU). Refer to  REMOVAL [08/2017 - 08/2019] 

    Result: 

    C 

    See step  9

    Result: 

    B 

    See step  8

  8. 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.

      Refer to REGISTRATION [08/2017 - 08/2019]

      Result

      Proceed to
      Recognition code can be registered
      Recognition code cannot be registered

    Result: 

    Recognition code can be registered 

    END (GO TO OPERATION CHECK) 

    Result: 

    Recognition code cannot be registered 

    See step  13

  9. 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.

      Result

      Proceed to
      Unmatching recognition code is output
      Unmatching recognition code is not output

    Result: 

    Unmatching recognition code is output 

    REPLACE DOOR CONTROL TRANSMITTER ASSEMBLY 

    Result: 

    Unmatching recognition code is not output 

    See step  10

  10. CHECK HARNESS AND CONNECTOR (DOOR CONTROL RECEIVER - BATTERY AND BODY GROUND) 
    1. Disconnect the door control receiver connector.
      GTY743708Courtesy of © TOYOTA, LICENSE AGREEMENT TMS1002
      *a Front view of wire harness connector
      (to Door control Receiver)
    2. Measure the resistance according to the value(s) in the table below.

      Standard Resistance

      Tester Connection Condition Specified Condition
      O54-12 (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
      O54-7 (+B) - Body ground Always 11 to 14 V

      Result

      Proceed to
      OK
      NG

    Result: 

    NG 

    REPAIR OR REPLACE HARNESS OR CONNECTOR 

    Result: 

    OK 

    See step  11

  11. CHECK DOOR CONTROL RECEIVER (OUTPUT) 
    1. Measure the voltage according to the value(s) in the table below.
      GTY772561Courtesy of © TOYOTA, LICENSE AGREEMENT TMS1002
      *a Component with harness connected
      (Door Control Receiver)

      Standard Voltage

      Tester Connection Condition Specified Condition
      O54-4 (RDA) - Body ground Ignition switch off, all doors closed and door control transmitter assembly switch not pressed 11 to 14 V
      Ignition switch off, all doors closed and door control transmitter assembly switch pressed Pulse generation

      Result

      Proceed to
      OK
      NG

    Result: 

    NG 

    REPLACE DOOR CONTROL RECEIVER. Refer to  REMOVAL [08/2015 - 08/2019] 

    Result: 

    OK 

    See step  12

  12. CHECK HARNESS AND CONNECTOR (MAIN BODY ECU [MULTIPLEX NETWORK BODY ECU] - DOOR CONTROL RECEIVER) 
    1. Disconnect the H133 main body ECU (multiplex network body ECU) connector.
    2. Disconnect the O54 door control receiver connector.
    3. Measure the resistance according to the value(s) in the table below.

      Standard Resistance

      Tester Connection Condition Specified Condition
      O54-4 (RDA) - H133-4 (RDA) Always Below 1 Ω
      O54-5 (PRG) - H133-5 (PRG) Always Below 1 Ω
      O54-4 (RDA) or H133-4 (RDA) - Other terminals and body ground Always 10 kΩ or higher
      O54-5 (PRG) or H133-5 (PRG) - Other terminals and body ground Always 10 kΩ or higher

      Result

      Proceed to
      OK
      NG

    Result: 

    NG 

    REPAIR OR REPLACE HARNESS OR CONNECTOR 

    Result: 

    OK 

    See step  13

  13. REPLACE DOOR CONTROL RECEIVER 
    1. Temporarily replace the door control receiver with a new or known good one.

      Refer to REMOVAL [08/2015 - 08/2019]

      Result

      Proceed to
      NEXT

    Result: 

    NEXT 

    See step  14

  14. CHECK REGISTER RECOGNITION CODE 
    1. Perform the Registration procedure.

      Refer to REGISTRATION [08/2017 - 08/2019]

      Result

      Proceed to
      NEXT

    Result: 

    NEXT 

    See step  15

  15. 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.

      Result

      Proceed to
      OK
      NG

    Result: 

    OK 

    END (DOOR CONTROL RECEIVER WAS DEFECTIVE) 

    Result: 

    NG 

    REPLACE MAIN BODY ECU (MULTIPLEX NETWORK BODY ECU). Refer to  REMOVAL [08/2017 - 08/2019] 

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