My buddy's radio lights for the presets only are not working. All other lights on the radio function. He said that one day his son was driving it and the preset lights came on and stayed on for about an hour. If other lights are working but not the presets I am assuming an internal issue and not a external ground. Has anyone had this issue before? He asked if I could pull the radio tomorrow and look at it but I have a feeling it's internal to the unit.
EDIT: Any help is much appreciated.
- - - - - - -
2000-2004 Service Information
( GROUP 15: Audio Systems )
Audio Unit Self-Diagnostic Mode
NOTE: To enter the speaker walk-around test or the audio unit self-diagnostic mode, must be ON and in radio tuner mode (AM/FM).
The audio unit self-diagnostic mode can only be entered while in the speaker walk-around test.
To enter the speaker walk-around test, simultaneously press the audio unit preset buttons 3 and 6.
The speaker walk-around test stops at each speaker and applies a different tone to each speaker for about 1-2 seconds. Each speaker is tested and displayed on the audio unit in the following sequence: RF, LF, LR, RR, Subwoofer I, Subwoofer II except for premium P100i and Premium CDx6 no Subwoofer I, Subwoofer II will display.
The speaker walk-around test automatically continues and tests:
for speaker short. If a short is present, SPKR SHORT will be displayed.
for CD/DJ. The audio unit display will show NO DJ if not present.
The speaker walk-around test will end and the audio unit will return to its previous setting.
To enter the following audio unit self-diagnostic modes, press the preset button desired while in the speaker walk-around test. This will abort the speaker walk-around test and start the selected test.
The audio unit self-diagnostic mode has five tests available:
Preset button 1 = Audio internal/external SELF TEST. If SELF FAIL is displayed, press TUNE > to scroll view the DTCs stored. Refer to the audio unit Diagnostic Trouble Code (DTC) Index. If the system is OK, SELF PASS is displayed.
Preset button 2 = View/Clear continuous diagnostic trouble codes (DTCs). NO DTCs is displayed if no DTCs are retrieved. If DTCs FOUND is displayed, press TUNE > button to view the DTCs retrieved. Refer to the audio unit Diagnostic Trouble Code (DTC) Index. To clear all DTCs press the EJECT button. DTCs CLEAR will be displayed.
Preset button 3 = SIGNAL TEST. This test measures the average strength at the current tuner setting.
Preset button 4 = Software configuration level. This test queries each audio system controller for its software configuration level. SOFT LEVELS will be displayed upon completion of the query. Press TUNE > to scroll view the software configuration version level.
Preset button 5 =
DISPLAY TEST. This test will light all the audio unit display segments for five seconds and then turn all segments off. When the test is complete, DISPLAY TEST is displayed on the bezel.
Preset button 6 = CONFIG LEVELS. This will show the software configuration for the audio unit.
To exit audio unit self-diagnostic mode, turn the ignition switch or the audio unit OFF.
If the concern remains and the fault is not detected,
proceed to Diagnostic Tool. <<<
Which you don't have, so = NULL
Symptom Chart
- No radio illumination <<< This would only be in the case of 'complete' no illumination.
- Circuitry.
- Audio unit.
REFER to
Section 413-00
Section 413-00
- The audio system illumination is inoperative
- Audio unit.
REMOVE the audio unit and SEND it to an authorized Ford audio system repair facility
- - - - - -
because only part of your illumination is out, it's as you said, 'Internal'.
2 choices,
1) crack the unit open and have a look around the front display PWB, ribbon cabling and see if anything loose, cracked, burned.
2) simply
scrap the unit and pick up a slightly used one at any scrap yard for around 40$ and be done with it!
~ sorry couldn't be much more of help.
