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Home >> Subaru >> 2015 >> BRZ Limited, Automatic Trans >> Repair and Diagnosis >> Electrical >> Starter >> Entry Start System Start System (Keyless Start) >> Entry & Start System (Start Function) >> Description Of Functions
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Description Of Functions

  1. Notes for registration
    1. When replacing any of the following parts, refer to the "immobilizer registration manual".
      CAUTION:
      • When replacing the collation ECM (smart key ECM assembly), it is also necessary to prepare all the registered electrical key transmitter sub-assemblies.
      • It is not possible to use a registered electrical key transmitter sub-assembly or ECM in a different vehicle.
      1. ID code box (immobilizer code ECM) *1
      2. Collation ECM (smart key ECM assembly)
      3. ECM
      4. Steering lock actuator assembly (steering lock ECM)
      5. Electrical key transmitter sub-assembly

      *: The ID code box is included.

    2. System functions

      The push button start functions are described below:

    Function Procedures
    Ignition function When the electrical key transmitter sub-assembly is confirmed to be in the vehicle interior, and the engine switch and brake pedal (1) or clutch pedal (2) are operated, the ignition function changes the power or starts the engine.
    Vehicle battery power saving function When not using the vehicle for long periods of time, this function extends the interval for the periodic sending of request signals or stops the sending of request signals, and saves the vehicle's battery power.
    • If 5 days pass without a response from the electrical key transmitter sub-assembly, the periodic sending of signals is stopped.
    • If 14 days pass without a response from the electrical key transmitter sub-assembly, the lock/unlock sensors of all the door outside handle assemblies except for the driver side door are disabled.

    If 10 minutes or more pass with the electrical key transmitter sub-assembly inside the detection area, the entry & start system will automatically disable the vehicle exterior detection area where the electrical key transmitter sub-assembly is.
    Electrical key transmitter sub-assembly battery power saving function If you press the switch on the electrical key transmitter sub-assembly, this function stops the sending of signals approx. 20 seconds later, and saves the power consumed by the electrical key transmitter sub-assembly.
    Entry cancel function Cancels the entry & start system when certain operations are performed.
    Immobilizer function Because the engine is only started by the registered electrical key transmitter sub-assembly, this prevents unauthorized people from starting the engine.
    Automatic power OFF function With automatic transmission
    If the vehicle is left for 20 minutes or more with the shift lever in P and ACC ON, the power automatically turns off. If the vehicle is left for 60 minutes or more with the shift lever in P and IG ON (with the engine not started, or the vehicle stopped), the power automatically turns off.
    With manual transmission
    If the vehicle is left for 20 minutes or more with ACC ON, the power automatically turns off. If the vehicle is left for 60 minutes or more with IG ON (with the engine not started, or the vehicle stopped), the power automatically turns off.
    (1) With automatic transmission
    (2) With manual transmission
    CAUTION:
    • Depending on the shape of the vehicle body, there may be certain places where the electrical key transmitter sub-assembly doesn't operate.
    • Even if the electrical key transmitter sub-assembly is within the vehicle exterior key detection area, if the electrical key transmitter sub-assembly is near a window, a door handle, or the center of the rear bumper, it may not be detected properly.
    • Even when the electrical key transmitter sub-assembly is within the vehicle interior key detection area, if the transmitter sub-assembly is near the instrument panel, the accessory box of the instrument panel, inside or near the front cup holder, in the glove compartment, or on the floor, it may not be detected properly.
    • If held improperly, the electrical key transmitter sub-assembly may not work properly.
    • In the following conditions, the range of the detection area may become smaller, or the key may not be detected properly:
      • The battery of the electrical key transmitter sub-assembly is drained.
      • There is a facility that produces strong radio waves nearby, such as a TV tower, a power plant, a TV station, or a gas station.
      • Even when the electrical key transmitter sub-assembly is within the vehicle interior key detection area, if the transmitter sub-assembly is near the instrument panel, the accessory box of the instrument panel, inside or near the front cup holder, in the glove compartment, or on the floor, it may not be detected properly.
      • The electrical key transmitter sub-assembly is covered by or touching a metal product.
      • A radio wave type keyless entry system is being used nearby.
      • The electrical key transmitter sub-assembly is near a high-voltage device or a device that produces electrical noise.
      • There is an electric device, such as a charger, near the electrical key transmitter sub-assembly.
    1. The request signal from the collation ECM (smart key ECM assembly) is sent via each electrical key antenna (vehicle exterior), and forms the detection area. The detection area formed by each electrical key antenna (vehicle exterior) is 0.7 m from the door handle and the rear bumper (electrical key antenna [trunk exterior]).
    2. When the vehicle is parked (with the power off and the door locked *), the detection area of each electrical key antenna (vehicle exterior) is formed by emitting a periodic request signal every 0.25 second to detect the electrical key transmitter sub-assembly. Also, with the door locked and touching the lock sensor, the request signal is emitted, and by forming the detection area on the vehicle exterior, the electrical key transmitter sub-assembly is detected.
      NOTE: *: The entry & start system controls each door individually. If you lock a door with the door lock switch or the wireless remote control function, even if all doors are not locked, a detection area is formed around the locked door.
    3. The detection area of the electrical key antenna (trunk exterior) is formed when you press the trunk opening switch assembly.
    4. The vehicle interior detection area is formed and the electrical key transmitter sub-assembly is detected in any of the following conditions: 1) a door is opened or closed, 2) the brake pedal *1 or the clutch pedal *2 is depressed, 3) the engine switch is operating, 4) the conditions required for a warning are met, 5) operation of the entry door lock is performed.

      *1: With automatic transmission

      *2: With manual transmission

    5. The settings of the vehicle interior detection area for when the engine in turned on can be customized with the customize function. (Refer to CUSTOMIZE PARAMETERS  )
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