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Wireless Door Lock Control System: Inspection

  1. INSPECT WIRELESS DOOR LOCK TRANSMITTER OPERATION 
    NOTE:

    Refer to REPLACEMENT .

    1. Using a screwdriver, remove the cover.
    2. Remove the battery (lithium battery).
    3. Install a new or normal battery (lithium battery).
      NOTE:

      When a new or normal battery can not be obtained, connect 2 new 1.5 V batteries in series, connect the battery (+) to the battery receptacle side terminal and battery (-) to the bottom terminal, then apply 3 V voltage to the transmitter.

    4. In the location where transmitter is approx. 1 Meter away from driver's outside handle in the right direction, and check the transmitter operation when pressing transmission switch on the side of the transmitter body.
      Fig 1: Testing Wireless - Door Lock Transmitter Operation
      G02928123Courtesy of © TOYOTA, LICENSE AGREEMENT TMS1002

      Standard: 

      Remote control of vehicle door lock can be operated. 

      NOTE:
      • The minimum operation distance differs according to operator, the way of holding the transmitter, and location.
      • As weak wave is used, operation distance might be shortened when noise is detected in strong wave or used frequency.
    5. Install the battery (lithium battery).
    6. Install a cover so that rubber cover is not distorted or slipped off.
  2. CHECK BATTERY CAPACITY 
    NOTE:
    • Make sure to use the TOYOTA electrical tester.
    • With the battery unloaded, judge can not be made whether the battery is available or not on the test.
    • When the transmitter is faulty, the energy amount left in the battery might not be checked correctly.
    • On the lithium battery used for the transmitter, the voltage more than 2.5 V with the battery unloaded is shown on the tester until the energy is completely consumed.
      1. Accordingly when inspecting the energy amount left in the battery, it is necessary to measure the voltage when the battery is loaded (1.2 kΩ).
    1. Remove the cover using a (-) driver.
    2. Remove the battery (lithium battery) from the transmitter.
      Fig 2: Removing Battery From Transmitter
      G02928124Courtesy of © TOYOTA, LICENSE AGREEMENT TMS1002
    3. Connect the lead to the (-) terminal of the transmitter and install the battery.
    4. Connect the (+) tester to the (+) battery (lithium battery), and (-) tester to the lead respectively.
      Fig 3: Connecting Tester To Battery
      G02928125Courtesy of © TOYOTA, LICENSE AGREEMENT TMS1002
    5. Press one of the transmitting switches on the transmitter for approx. 1 second.
    6. Press the transmitting switch on the transmitter again to check the voltage.
      1. Standard: 2.1 V or more 
      NOTE:
      • When the temperature of the battery is low, the judge can not be made correctly.
        1. When the outcome of the test is less than 2.1 V, conduct the test again after leaving the battery in the place at 18 °C for more than 30 minutes.
      • By auto power off function, the voltage becomes no load voltage (more than 2.5 V) condition after 20 seconds from the switch was pressed.
        1. Make sure to read the voltage before of it.
      • High voltage might be shown once or twice after leaving the battery, judge should be made with the voltage shown at the 3rd time or later.
    7. Disconnect the lead.
    8. Set the battery (lithium battery) in the transmitter.
    9. Install the cover, so that the rubber cover is not distorted or slipped off.
  3. INSPECT WIRELESS DOOR LOCK BUZZER OPERATION 

    Connect the positive (+) lead from the ohmmeter to terminal 1 and the negative (-) lead to terminal 2, and measure resistance of approx. 1 kΩ.

    Fig 4: Connecting Terminal To Ohmmeter
    G02928126Courtesy of © TOYOTA, LICENSE AGREEMENT TMS1002

    If resistance is not as specified, replace the buzzer.

  4. Connector disconnected: 
    1. INSPECT WIRELESS DOOR LOCK CONTROL RECEIVER CIRCUIT 

    Disconnect the connector from the receiver and inspect the connector on the wire harness side, as shown.

    Fig 5: Disconnecting Connector From Receiver
    G02928127Courtesy of © TOYOTA, LICENSE AGREEMENT TMS1002
    CONNECTION CONDITION

    Tester Connection Condition Specified Condition
    1 - Ground Always Continuity
    5 - Ground Always Battery Positive Voltage

    If the circuit is not as specified, inspect the circuits connected to other parts.

  5. Connector connected: 
    1. INSPECT WIRELESS DOOR LOCK CONTROL RECEIVER CIRCUIT 

    Connect the wire harness side connector to the receiver and inspect the wire harness side connector from the back side, as shown.

    Fig 6: Connecting Wire Harness Side Connector To Receiver
    G02928128Courtesy of © TOYOTA, LICENSE AGREEMENT TMS1002
    TESTER CONNECTION CONDITION

    Tester Connection Condition Specified Condition
    3 - Ground Normal Mode Approx. 10 - 14 V
    2 - Ground Ignition Switch Position OFF Key Removed Transmitter ON Approx. 6 - 7 V

    If circuit is as specified, replace the receiver.

    If the circuit is not as specified, inspect the circuits connected to other parts.

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