|
HandsFreeLink System Description - Overview
The HandsFreeLink® (HFL) automatically connects to a linked cell phone when the vehicle is in the ACCESSORY or ON mode. The HFL also synchronizes with the paired cell phone's phone book to automatically update any changes. The automatic update function depends on the cell phone. HandsFreeLink Module (without HandsFreeLink Control Unit)
The audio unit builds in the HFL circuit and the Bluetooth transceiver. HandsFreeLink Control Unit
The HandsFreeLink control unit builds in the HFL circuit and the Bluetooth transceiver. The audio unit or audio-navigation unit controls the HandsFreeLink control unit using the GA-NET. The data communication between the audio unit or audio-navigation unit and the HandsFreeLink control unit is using the USB. Diagnostic Function
The audio-navigation unit can read the part number and software version about the HandsFreeLink control unit, and can check the connections between the audio-navigation unit and the HandsFreeLink control unit. The HandsFreeLink control unit has diagnostic trouble codes that cannot be read by the HDS. There is a self-diagnostic function available that does not need the HDS. General Operation
The HFL switch on the steering wheel is used to answer incoming calls, to make outgoing calls, or to end a call. The HFL information is displayed on the multi-information display unit. The microphone in the roof console picks up the driver's voice and sends the signal to the HandsFreeLink control unit. The signal is then sent from the Bluetooth transceiver to the cell phone. The caller's voice signal is sent from the cell phone to the Bluetooth transceiver, then directed to the audio unit or audio-navigation unit via the analog audio line (TELEM SIG). The audio unit or audio-navigation unit outputs the voice signal through the front door speakers. When you are talking on the cell phone using the HFL system, the HandsFreeLink control unit mutes the audio system. Short Message Service
The HandsFreeLink control unit processes the short message service (SMS) data sent from the cell phone and sends them to the audio unit or audio-navigation unit via the USB. The text message information is displayed on the multi-information display unit. |