Operation CHARM: Car repair manuals for everyone.

Antenna: Description and Operation



Antenna







The antenna cable is split into two sections:
- Audio unit to floor console connector.
- Floor console connector to antenna isolator module.

The audio unit to antenna isolator module cable is located in the body wiring harness.

There are two audio antennas fitted to the vehicle, an AM antenna and an FM antenna, both are located in the rear windshield glass. The AM antenna is above the heated rear windshield element to the left-hand side. The FM antenna utilizes the heated rear windshield demist element but does not carry the demist current. The power connector to the demist screen has a filter in line called a positive wavetrap and the ground connector to the demist screen has a filter called a negative wavetrap.

The diversity FM antenna is similar to the AM/FM antenna, except that two FM antennas are derived from the demist pattern. As the demist screen is split to create the extra antennas, a double wavetrap is fitted which has two positive connectors. The antenna isolator switches between the two FM inputs and sends the strongest to the radio.

The antenna isolator module controls both antennas.

The TV antenna system is split into four and works the same as the diversity system for the FM antenna. The TV antenna system consists of four amplifiers colour coded black, two mounted onto the rear parcel tray and two mounted onto the right hand rear 'C' pillar. These are connected to the rear backlite and use the same antenna as the FM audio antenna. In order for a vehicle to have TV it must have the navigation option fitted.

The VICS (vehicle information and communication system, Japan only) has two antenna's, one located in the rear backlite and the other located on the facia panel in the left hand corner. The rear antenna has a filter which is located on the right hand rear 'C' pillar colour coded green.