Radio Tuner Does Not Change Stations

Symptom Troubleshooting: Radio tuner does not change stations

Radio tuner does not change stations

NOTE:

- Check the vehicle battery condition first.

- Check the connectors for poor connections or loose terminals.

1. Turn the ignition switch to ON (II).

2. Turn on the audio unit, and note the audio information on the display panel.

Does the audio information display properly?
YES - Go to step 3.

NO - Go to Audio system information does not display on the audio-HVAC (sub) display unit. Symptom Troubleshooting


3. Operate the tuning knob to see if the radio station changes.

Does the radio station change?
YES - Intermittent failure, the tuning knob is OK at this time.

NO - Go to step 4.


4. Go to the audio button, knob, and remote switch detection mode in the audio system self-diagnostic function. Initial Inspection and Diagnostic Overview

Is the rotating portion of the selector knob (tune (sound) knob ICD) detected when operated in both directions?
YES - Substitute a known-good audio unit with navigation, Audio Unit Removal/Installation (With Navigation) without navigation, Audio Unit Removal/Installation (Without Navigation) and recheck. If the symptom/indication goes away, replace the original audio unit with navigation, Audio Unit Removal/Installation (With Navigation) without navigation. Audio Unit Removal/Installation (Without Navigation)

NO - Substitute a known-good audio switch panel, and recheck. If the symptom/indication goes away, replace the original audio switch panel. Audio Switch Panel Removal/Installation (With Navigation) If the system is still present, substitute a known-good audio unit with navigation, Audio Unit Removal/Installation (With Navigation) without navigation Audio Unit Removal/Installation (Without Navigation) and recheck. If the symptom/indication goes away, replace the original audio unit with navigation, Audio Unit Removal/Installation (With Navigation) without navigation. Audio Unit Removal/Installation (Without Navigation)