Reception level indication mode
This diagnostic screen checks the audio unit's reception level. This level then can be used in the diagnosis of audio unit reception quality. The reception level is displayed in decibels (dB)
Preperation:
- Pank the vehicle putdoors in an appropriate location for good radio reception.
- Tune to a powerful local FM radio station then write down the radio station number.
- Enter the reception level indication mode in the self-diagnostic function. The AM/FM antenna amplifier is on (A. SEL or TP is not displayed in the audio-HVAC display).
- Tune to the FM radio station you wrote down preperation using the TUNING knob, and note the decibel level of that station when you release the button.
- Press and release the A. SEL button to turn the AM/FM antenna amplifier off (A. SEL or TP is now displayed in the audio-HVAC display).
- Tune to the FM radio station you wrote down in preperation using the TUNING knob, and note the decibel level of that station when you r7elease the button.
- Press and release the A. SEL button to turn the AM/FM antenna amplifier back on (A. SEL or TP is not displayed in the audio-HVAC display.
- Turn the ignition switch to LOCK (0) or audio unit off to exit the test mode.
- Compare your results to a known-good, (make sure it is the same year and trim level) in the same location and direction, and under the same environmental conditions.