Design

Design

Carphone antenna/GPS antenna







The GPS and carphone antennas are directly connected to the phone module (PHM). The antennas are in the front windshield in front of the rear view mirror.

There are diagnostics for both the GPS and carphone antennas.

Handset







The handset is directly connected to the phone module (PHM). The handset is in the center console.

The phone module (PHM) determines whether to connect the call using hands free or the handset, depending on the signal from the cradle. When the handset is in the holder, all voice calls are handsfree. The handset is activated when it is removed from the holder. The cradle signal to the phone module (PHM) is controlled by a magnetic switch in the handset. The switch is closed by a magnet in the cradle. When the handset is in the cradle, the cradle signal to the phone module (PHM) is 0 V. When the handset is in use the signal is 5 V.

There are diagnostics for the handset.

Handsfree equipment







The handsfree equipment consists of a microphone and a speaker.

The microphone is in the rear view mirror.

The speaker is in the head restraint on the driver's seat.

There are diagnostics for the microphone and speaker.