FixVault
Home › Toyota › 2009 › Prius Base › Repair and Diagnosis › Body & Frame › Door Locks › Door Lock › Door Control Transmitter › Inspection

Door Control Transmitter: Inspection

  1. INSPECT DOOR CONTROL TRANSMITTER 
    1. Inspect operation of the transmitter.
      1. Remove the battery (lithium battery: CR1632) from the transmitter (see TRANSMITTER BATTERY  ).
      2. Install a new or non-depleted battery.

        HINT:

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

        Fig 1: Inspecting Door Control Transmitter
        G04476157Courtesy of © TOYOTA, LICENSE AGREEMENT TMS1002
      3. From outside the vehicle, approximately 1 m (3.28 ft.) from the driver the outside door handle, test the transmitter by pointing transmitter at the vehicle and pressing a transmitter switch.

        OK : Door lock can be operated via transmitter. 

        The LED comes on more than once.

        HINT:

        • The operating range differs depending on the user, the way the transmitter is held and the location.
        • Since the transmitter uses faint electric waves, the operating range might be shortened if noise or strong electric waves occur in the area where the transmitter is used. 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. See INSTALLATION .
        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: Installing Transmitter Battery
        G04476158Courtesy of © TOYOTA, LICENSE AGREEMENT TMS1002
      3. W/ Smart Key System:

        Using an oscilloscope, check the transmitter battery voltage waveform.

        Fig 3: Checking Transmitter Battery Voltage Waveform (W/ Smart Key System)
        G00468263Courtesy of © TOYOTA, LICENSE AGREEMENT TMS1002

        Standard voltage: 

        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)

        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  (SMART KEY SYSTEM DESCRIPTION).

      4. W/O Smart Key System:

        Using an oscilloscope, check the transmitter battery voltage waveform.

        HINT:

        Measure the transmitter battery voltage while pressing the LOCK or UNLOCK switch on the transmitter.

        Fig 4: Checking Transmitter Battery Voltage Waveform (W/O Smart Key System)
        G00468264Courtesy of © TOYOTA, LICENSE AGREEMENT TMS1002

        Standard voltage: 

        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.

About FixVault