Cellular Phone: Description and Operation

Mobile Telephone And Two-way Radio Operation, Notes

General information
Mobile telephones or portable two-way radios may not be used in the vehicle without a separate external antenna.
- Radio remote controls (e.g. for garage door opener) and wireless units (e.g. keyboard or PC mouse) may only be used in the vehicle if the transmitted output is max. 100 mW.
- Installation of CE or e-marked units is only permitted (Europe only).
- It is absolutely necessary to observe the manufacturer's operating and installation instructions for mobile telephones, two-way radios and antennas.
- The optimum unit range is only reached via an external 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 prevented.
- The use of a mobile telephone or a two-way radio without or with an incorrectly installed external antenna results in increased electromagnetic fields in the vehicle interior.

In this case detrimental affects to health or malfunctions of vehicle electronics could be the consequence.

Installation and operation of radios/telephones with a transmitted output above 10 watt for the radio communication services listed in the table is only permitted regarding the following prerequisites:
- The transmitted output on point of the antenna base must not exceed the relevant max. values (see manufacturer's designations).
- The antenna locations listed in the table must be maintained.

Transmitted output and antenna fitting locations table.

Performing repairs, notes

CAUTION:
Before beginning repairs on the electrical system:
- Switch off all electrical consumers.
- Switch ignition off and remove ignition key.
- Disconnect negative ( - ) battery terminal.
- When disconnecting and reconnecting battery terminals, observe all applicable Notes and torque specifications, as well as instructions on performing OBD program and electrical system function checks as specified.

Use valid current flow diagram.

Removing and installing interior trim

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

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