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June 2013
Electrical Systems Operation & Diagnosis Module (602)
Wireless Communications
1. When the vehicle and the remote transmitter are separated, the vehicle outputs a signal
every 250 milliseconds. This is the signal that wakes up the remote key. The wake signal
is transmitted by the door handle antennas or trunk exterior antenna. Each antenna is
equipped with an oscillator that controls the signal.
2. The remote transmitter LED (BRZ only) will begin to flash when the remote transmitter is
within range of the wake up signal.
3. The remote transmitter will transmit a continuous signal to the vehicle when the remote
transmitter is within range.
4. The wake up signal will change frequency to 1 signal every 3 seconds when the remote
transmitter has been activated.
5. When the remote transmitter crosses the threshold of outside to inside the vehicle, the door
handle antenna stops transmitting. The LED on the remote transmitter will stop blinking.
Collation and Immobilizer
1. The vehicle transmits a wireless signal (135 KHZ) to the Remote Transmitter.
2. The Remote Transmitter transmits a wireless signal (315 MHZ) to the vehicle.
3. The signal from remote transmitter includes the Immobilizer Identification.
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