So, I've tried to run the self test. I can get the speaker walk-around test to happen, and all reports fine, but not any of the other 5 options listed below seem to work. I'm trying to enter from the walk-around test mode, but the preset buttons start none of the actions. Maybe that alone indicates the unit is messed up a bit. I would hope the DTC codes would help figure out what, but can't seem to get them to work. Maybe someone has done this, and the instructions are just bad??
FYI, from the factory manual:
Speaker Walk-Around Test
NOTE: To enter the speaker walk-around test or audio unit self-diagnostic mode, the audio unit must be turned on and in radio tuner mode (AM/FM).
To enter the speaker walk-around test, simultaneously press and hold the audio unit preset buttons 3 and 6 for approximately 3 seconds, then release.
- The speaker walk-around test applies sound to each speaker for 1 to 2 seconds. Each speaker is tested and displayed on the audio unit in the following sequence: RF, LF, LR, RR.
- The speaker walk-around test automatically continues and tests for the operation of the AM/FM antenna. If the antenna is inoperative, NOT FOUND will be displayed. If the vehicle is not equipped with CD/DJ, or if the CD/DJ is not responding, NO DJ will be displayed.
Audio Unit Self-Diagnostic Mode
NOTE: To enter the speaker walk-around test or audio unit self-diagnostic mode, the audio unit must be turned on and in radio tuner mode (AM/FM).
- To enter the following tests, press the desired preset button while in the speaker walk-around test or while in the audio unit self-diagnostic mode.
- To exit the audio unit self-diagnostic mode, turn the key to the OFF position or turn the audio unit off.
- If the concern remains and the fault is not detected, GO to Symptom Chart.
- The audio unit self-diagnostic mode has 5 tests available:
• Preset Button 1 = Audio internal/external SELF TEST. This test is an on-demand self-test. If SELF FAIL is displayed, press TUNE > to scroll through the stored DTCs. Refer to the Audio Unit Diagnostic Trouble Code (DTC) Index. If the system is OK, SELF PASS will be displayed.
• Preset Button 2 = View/Clear continuous DTCs. NO DTCS is displayed if no DTCs are retrieved. If DTCS FOUND is displayed, press TUNE > to view the DTCs. 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.
• NOTE: Always document, clear, and carry out the audio unit on-demand self-test again.
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 through the software configuration version level.
• Preset Button 5 = DISPLAY TEST. This test lights all the audio unit display segments for 5 seconds. When the test is complete, DISPLAY TEST is displayed.