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Transmitter Battery: Inspection: Inspection

WARNING: This page is about a different car, the 2011 Toyota Avalon. However, it is still accessible from the selected car via links, so may be relevant.
  1. INSPECT DOOR CONTROL TRANSMITTER (w/o Smart Key System) 
    1. Inspect operation of the transmitter.
      1. Remove the battery (lithium battery) from the transmitter. Refer to REPLACEMENT .
      2. Install a new or non-depleted battery (lithium battery).
        Fig 1: Connecting 1.5V Batteries In Series To Transmitter
        GTY199915Courtesy of © TOYOTA, LICENSE AGREEMENT TMS1002

        HINT: 

        When a new or non-depleted battery is not available, first connect 2 new 1.5 batteries in series. Then connect leads to the batteries and apply 3 V to the transmitter, as shown in the illustration.

      3. From outside the vehicle, approximately 1 m (3.28 ft) from the driver side outside door handle, test the transmitter by pointing its key plate at the vehicle and pressing a transmitter switch.

        OK

        The door lock can be operated via the transmitter.

        The LED comes on more than once.

        • The operational area differs depending on the user, the way the transmitter is held and the location.
        • The transmitter's faint electric waves may be affected if the area has strong electric waves or noise. The transmitter's operation area may be shortened or the transmitter may not function.
    2. Inspect the battery capacity.
      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. Refer to REPLACEMENT .
        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. Carefully pull the lead wire out from the position shown in the illustration and install the previously removed transmitter battery.
        Fig 2: Identifying Lead Wire
        GTY175055Courtesy of © TOYOTA, LICENSE AGREEMENT TMS1002
      3. Using an oscilloscope, check the transmitter battery voltage waveform.
        Fig 3: Checking Battery Voltage
        GTY175053Courtesy of © TOYOTA, LICENSE AGREEMENT TMS1002

        HINT: 

        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 Engine switch OFF, all doors closed and lock switch pushed
        Specified Condition 2.2 to 3.2 V (Refer to the waveform)

        If the result is not as specified, replace the transmitter battery.

  2. INSPECT DOOR CONTROL TRANSMITTER (w/ Smart Key System) 
    1. Inspect the operation of the transmitter.
      1. Remove the battery (lithium battery) from the transmitter. Refer to REPLACEMENT .
      2. Install a new or normal battery (lithium battery).
        Fig 4: Connecting 1.5V Batteries In Series To Transmitter
        GTY199714Courtesy of © TOYOTA, LICENSE AGREEMENT TMS1002

        HINT: 

        If a new or normal battery is not available, first connect 2 new 1.5 V batteries in series. Then connect leads to the batteries and apply 3 V to the transmitter as shown in the illustration.

      3. From outside the vehicle, approximately 1 m (3.28 ft.) away from the driver side outside door handle, test the transmitter by pointing its key plate at the vehicle and pressing a transmitter switch.

        OK

        The door lock can be operated via the transmitter.

        The LED comes on more than once.

        • The operational area differs depending on the user, the way the transmitter is held, and the location.
        • The transmitter faint electric waves may be affected if the area has strong electric waves or noise. The transmitter operation area may be shortened or the transmitter may not function.
    2. Inspect the battery capacity.
      1. Remove the battery from the electrical key transmitter that does not operate. Refer to REPLACEMENT . 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. Fig 5: Identifying Lead Wire
        GTY198994Courtesy of © TOYOTA, LICENSE AGREEMENT TMS1002
      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.
        Fig 6: Checking Transmitter Battery Voltage
        GTY302586Courtesy of © TOYOTA, LICENSE AGREEMENT TMS1002

        HINT: 

        When measuring the battery voltage, while operating the lock switch of a door handle, bring the electrical key transmitter within the entry operating range to perform the measurement. For the entry operating range, refer to System Description. Refer to SYSTEM DESCRIPTION .

        Standard Voltage

        Item Content
        Tester Connection Battery positive (+) - Battery negative (-)
        Tool Setting 0.5 V/DIV., 100 ms./DIV.
        Condition Engine switch off, all doors closed and lock switch pushed
        Specified Condition 2.2 to 3.2 V (Refer to the waveform)

        If the result is not as specified, replace the transmitter battery.

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