Telematic Control Unit

The TCU is always installed in the country-specific version US even if no telephone was ordered. The telematic functions emergency call and breakdown call are standard features. The scope of functions differs from the EU version by following features:

• The TCU is always installed to facilitate the emergency call even if no telephone is fitted
• Dual band 800 MHz and 1900 MHz
• Combined transceiver module NAD (network access device) for the analogue AMPS standard (American Mobile Phone Standard) and the digital CDMA standard (Code Division Multiplex Algorithm)
• Eject box with charger for Motorola Phoenix V60
• Telematics Unit (E/B) Call
• GPS Receiver
  Fig 1: Locating Telematic Control Unit

  Courtesy of BMW OF NORTH AMERICA, INC.

Fig 2: Telephone Schematic

Courtesy of BMW OF NORTH AMERICA, INC.