Operation CHARM: Car repair manuals for everyone.

Antenna: Description and Operation

With the ignition switch in ACC or ON (II), voltage is applied through fuse 11 to the radio. Voltage is applied at all times through fuse 37 to the power antenna relay. The relay is grounded at G5O1.

When you turn the radio ON, the relay coil is energized and its contacts close. Voltage is applied to the power antenna motor which drives the antenna up to its fully extended position.

When you turn the radio off, the relay contacts open. The polarity of the voltage applied to the motor is now reversed: The antenna motor retracts the antenna completely. A mechanical switch controlled by the motor turns the motor OFF when the antenna reaches maximum height or is fully retracted.

In models equipped with a spoiler, a mast antenna retractor relay is used to lower the antenna when you open the trunk lid. Voltage is applied at all times to the coil of the relay. When you open the trunk lid, the coil is grounded at G5O1 and the normally closed contacts of the relay open, removing power from the power antenna relay. The motor then retracts the antenna.