Cellular Telephone and Two-Way Radio Operation

Cellular Telephone and Two-Way Radio Operation

Cellular Telephones and Two-Way Radios Cannot Be Operated Within The Vehicle Without A Separate External Antenna

• This does not include the proper operation of the cellular telephone preparation UHV LOW and UHV Premium via which the corresponding Bluetooth wireless signals in the vehicle interior are transmitted between the Cellular telephone (R54) and Cell phone operating electronics control module (J412). The transmitting power is limited to 1mW (transmission class III),

• An antenna cable connection to a corresponding external antenna must be present at the telephone baseplate or the telephone transceiver.

• Remote controls (e.g. for garage door openers) and wireless devices (e.g. keyboard) may only be operated in the vehicle if the transmitting power of the device is a maximum of 100 mW.

• Observe the operating instructions and installation instructions of the manufacturer of cellular telephones, two-way radios, and antennas.

• The devices' optimal range will only be reached with an exterior antenna.

• When telephone and two-way radio systems are installed properly there is no danger to safety system e.g. ABS or airbag. A prerequisite is however that there has been no intervention in their installations. Parallel wiring to such systems must be avoided.

• Excessively high electromagnetic fields can arise if cellular telephones and two-way radios, with or without an incorrectly installed exterior antenna, are used.

In such a case, damage to health and interference with vehicle electronics cannot be ruled out.

The Installation and Operation Of Two-Way Radios (Transmitting Power Greater Than 100 Watts) For The Radio Services In The Table Are Only Permissible Under The Following Conditions:

• The transmitted output on antenna base (see manufacturers designations) must not exceed the relevant maximum values.

• You may not use antenna locations other than those shown in the table.

Transmitting power and antenna location table refer to => [ Transmitted Output, Antenna Installation Locations ] Locations.

Performing Repairs

Before starting repair work, batteries must be disconnected!

Use the most current wiring diagram.

To remove and install trims, observe the body interior repair information or body exterior repair information.

Observe the manufacturer's operating and installation instructions for cellular telephones, two-way radios and antennas.

Secure wiring harnesses to cable ties. Wrap connectors with foam to avoid rattling noises.

Transmitted Output , Possible Installation Locations

Volkswagen permits the installation and operation of radio units, as long as the transmitted power on antenna base, listed in table, is not exceeded. For prescribed antenna locations see table.

The limits set forth in VDE 0848 Part 2 (max. permissible field intensity to protect persons) must be maintained even, if necessary, through reduction of transmission output.

Voltage Supply

When retrofitting transmitter/receiver unit in the vehicle, the battery is used to connect the positive and negative wire.

The wiring harness must be manufactured additionally:

• Voltage supply positive via red wire, 2.5 mm2 cross section.

• Voltage supply negative via brown wire, 2.5 mm2 cross section.

The positive wire must have a fuse which must be located very close to the battery. Therefore a fuse panel must be secured next to the battery. Both wires must be encased in an insulating hose.

Make suitable connections at the battery end.

Proceed on unit side according to operating instructions.

Route the auxiliary wiring harness separate from the vehicle wiring. Minimum distance: 10 cm

• For some telephone systems and radio communication units an additional terminal 15 (ignition) is necessary. A black wire connection with a cross section of 1.5 mm2 must then be connected from the transceiver to terminal 15a.

• When installing, make sure wiring connections are not routed parallel to standard wiring.

Antenna and Wiring

A shielded wire must be used between transmitter/receiver unit and the antenna. Shielding must be grounded to unit and antenna.

At the same time ensure correct and continuous Ground (GND) connection of antenna base wire to vehicle body.

The transmitting system must only be used when shielded to avoid interference in antenna wiring. To ensure the system it is tuned and operating correctly it is recommended that an output/performance check is carried out.