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4.5 Antenna Systems (AS)    >   11 Diagnosis - Function Test

Function Test Explanation Function Test: Tune-in a weak radio station (music). Set fader, bass, treble and balance to center range (RESET reading in display window). Verify reception quality of AM and FM band by driving a 360° circle (in a large parking lot) while performing road test. Compare function test results against identical vehicle (with integrated antenna) from dealer stock. Tune-in same radio station , ensure that the settings are set to position 0 and perform same road test as above and over same course . If components are replaced, repeat entire function test.