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Home >> Scion >> 2006 >> xB Automatic >> Repair and Diagnosis >> Body & Frame >> Door Locks >> Door Lock >> Wireless Door Lock Control System >> Only Wireless Door Lock Control Function does not Operate >> Inspection Procedure

Inspection Procedure

HINT:

The switches described below transmit signals and are built into the door control transmitter.

  1. CHECK WIRELESS DOOR LOCK CONTROL FUNCTIONS 
    1. Check the wireless door lock control functions (see ON-VEHICLE INSPECTION ).

    OK : NORMAL 

    NG : Go to Next Step 

  2. REPLACE TRANSMITTER BATTERY WITH NORMAL ONE 
    1. After replacing the transmitter battery with a new or normal one, check that the wireless LOCK / UNLOCK operation is normal.

    OK: 

    Wireless LOCK / UNLOCK operation is normal. 

    OK : REPLACE TRANSMITTER BATTERY 

    NG : Go to Next Step 

  3. CHECK WIRELESS DOOR LOCK CONTROL FUNCTIONS (STANDARD OPERATION) 
    1. Check if UNLOCK-LOCK operates in standard operation.
      NOTE: Standardized test procedure: Press the transmitter switch for 1 second while pointing the transmitter at the driver side door outside handle from a distance of 1 m (3.28 ft.). The transmitter should be pointed directly at the door handle, i.e. at 90°angle to the vehicle body.

    NG : REPLACE DOOR CONTROL TRANSMITTER 

    OK : Go to Next Step 

  4. CONFIRM ROOM LIGHT ILLUMINATES 
    1. Check that the room light illuminates.

      HINT:

      When the room light does not illuminate, proceed to self-diagnostic mode after repairing the room light.

    NEXT 

  5. SWITCH TO SELF-DIAGNOSTIC MODE 
    1. Switch to self-diagnostic mode by operating the ignition key cylinder.
      1. Step 1: Ensure that the vehicle is in its initial condition (see ON-VEHICLE INSPECTION ), insert the key into the ignition key cylinder and remove it.
      2. Step 2: Within 5 seconds of removing the key (step 1), insert the key into the ignition key cylinder (ignition switch OFF) and perform the following once: Turn the ignition switch to ON and return it to OFF.
      3. Step 3: Within 30 seconds of turning the ignition switch OFF (step 2), perform the following 9 times: Turn the ignition switch to ON and return it to OFF.
        Fig 1: Room Light Wave Form (Self-Diagnosis Mode)
        G04229280Courtesy of © TOYOTA, LICENSE AGREEMENT TMS1002
        NOTE: If the operation has failed, the system will return to normal mode.

        HINT:

        • Turning the ignition switch ON after step  3 has been completed will end 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 the blinking frequency of the room light.

    NG : Go to step   9 

    OK : Go to Next Step 

  6. 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 with the outputs of the room light).
      Fig 2: Room Light Output Wave Form
      G04229281Courtesy of © TOYOTA, LICENSE AGREEMENT TMS1002

      Result 

      RESULT REFERENCE

      Result Proceed to
      The normal wave of the door LOCK and UNLOCK switch (room light blinking) A
      An unmatching recognition code (room light ON) B
      No diagnosis outputs (room light OFF) C

    A : REPLACE DOOR CONTROL RELAY ASSEMBLY 

    C : Go to step   8 

    B : Go to Next Step 

  7. REGISTER RECOGNITION CODE 
    1. Check that the system can switch to rewrite mode or add mode and whether a recognition code can be registered.

    NG : Go to step   15 

    OK : Go to Next Step 

    NORMAL (CARRY OUT INSPECTION OF FUNCTIONS) 

  8. CHECK RESPONSE OF DOOR CONTROL RECEIVER 
    1. When a new or normal door control transmitter switch of the same type vehicle is held down, check that a diagnosis of unmatching recognition code is output.

    NG : Go to step   12 

    OK : REPLACE DOOR CONTROL TRANSMITTER 

  9. CONFIRM INPUT METHOD OF SELF-DIAGNOSTIC MODE 

    Result 

    TESTER CONNECTION SPECIFIED CONDITION

    Result Proceed to
    When the method for switching the system to self-diagnostic mode works. A
    When the method for switching the system to self-diagnostic mode does not work. B

    B : Go to step   5 

    A : Go to Next Step 

  10. INSPECT UNLOCK WARNING SWITCH ASSEMBLY 
    1. Measure the resistance of the switch.

      Standard resistance 

      Fig 3: Inspecting Unlock Warning Switch Assembly
      G04229282Courtesy of © TOYOTA, LICENSE AGREEMENT TMS1002
      TESTER CONNECTION SPECIFIED CONDITION

      Tester Connection Switch Condition Specified Condition
      1 - 2 Not pushed 10 kΩ or higher
      1 - 2 Pushed Below 1 Ω

    NG : REPLACE UNLOCK WARNING SWITCH ASSEMBLY 

    OK : Go to Next Step 

  11. CHECK WIRE HARNESS (UNLOCK WARNING SWITCH - DOOR CONTROL RELAY AND BODY GROUND) 
    1. Disconnect the U1 switch connector.
    2. Disconnect the D4 relay connector.
    3. Measure the resistance of the wire harness side connectors.

      Standard resistance 

      Fig 4: Identifying U1 Switch And D4 Relay Connector Terminals
      G04229283Courtesy of © TOYOTA, LICENSE AGREEMENT TMS1002
      TESTER CONNECTION SPECIFIED CONDITION

      Tester Connection Specified Condition
      U1-2 - D4-8 (KSW) Below 1 Ω
      U1-1 - Body ground Below 1 Ω

    NG : REPAIR OR REPLACE HARNESS AND CONNECTOR 

    OK : Go to Next Step 

  12. CHECK WIRE HARNESS (DOOR CONTROL RECEIVER - BATTERY AND BODY GROUND) 
    1. Disconnect the D3 receiver connector.
    2. Measure the voltage of the wire harness side connector.

      Standard voltage 

      Fig 5: Identifying D3 Receiver Connector Terminals
      G04229284Courtesy of © TOYOTA, LICENSE AGREEMENT TMS1002
      TESTER CONNECTION SPECIFIED CONDITION

      Tester Connection Specified Condition
      D3-5 (+B) - Body ground 10 to 14 V
    3. Measure the resistance of the wire harness side connector.

      Standard resistance 

      TESTER CONNECTION SPECIFIED CONDITION

      Tester Connection Specified Condition
      D3-1 (GND) - Body ground Below 1 Ω

    NG : REPAIR OR REPLACE HARNESS AND CONNECTOR 

    OK : Go to Next Step 

  13. CHECK DOOR CONTROL RECEIVER (OUTPUT) 
    1. Reconnect the D3 receiver connector.
    2. Measure the voltage of the connector.

      Standard voltage 

      Fig 6: Identifying D3 Receiver Connector Terminals
      G04229285Courtesy of © TOYOTA, LICENSE AGREEMENT TMS1002
      TESTER CONNECTION SPECIFIED CONDITION

      Tester Connection Condition Specified Condition
      D3-2 (RDA) - Body ground No key in ignition key cylinder, all doors closed and each transmitter switch OFF --> ON Below 1 V --> Approximately 6 to 7 V --> Below 1 V

    NG : Go to step   15 

    OK : Go to Next Step 

  14. CHECK WIRE HARNESS (DOOR CONTROL RECEIVER - DOOR CONTROL RELAY) 
    1. Disconnect the D3 receiver connector.
    2. Disconnect the D4 relay connector.
    3. Measure the resistance of the wire harness side connectors.

      Standard resistance 

      Fig 7: Identifying D3 Receiver And D4 Relay Connector Terminals
      G04229286Courtesy of © TOYOTA, LICENSE AGREEMENT TMS1002
      MEASUREMENT SPECIFIED CONDITION

      Tester Connection Specified Condition
      D3-2 (RDA) - D4-25 (RDA) Below 1 Ω
      D3-2 (RDA) - Body ground 10 kΩ or higher
      D4-25 (RDA) - Body ground 10 kΩ or higher

    NG : REPAIR OR REPLACE HARNESS AND CONNECTOR 

    OK : Go to Next Step 

  15. REPLACE DOOR CONTROL RECEIVER WITH NORMAL ONE 
    1. After replacing the door control receiver with a new or normal one, check that the wireless LOCK / UNLOCK operation is normal.

      OK: 

      Wireless LOCK / UNLOCK operation is normal. 

    NG : REPLACE DOOR CONTROL RELAY ASSEMBLY 

    OK : Go to Next Step 

    REPLACE DOOR CONTROL RECEIVER 

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