Component Tests and General Diagnostics

SPEAKER WALK-AROUND TEST (ULC AND M100 AUDIO UNITS)

NOTE: The audio unit must be turned on and in radio tuner mode (AM/FM) to enter the speaker walk-around test.

1. To enter the speaker walk-around test, press preset buttons 3 and 6 simultaneously and hold for 3 seconds, then release.
2. The speaker walk-around test applies sound to each speaker for 1-2 seconds. Each speaker is tested and shown on the display in the following sequence: RF, LF, LR, RR.
3. To exit the speaker walk-around test, turn the ignition switch to OFF, or turn the audio unit off.

SPEAKER WALK-AROUND TEST AND SELF-DIAGNOSTIC MODE (DM100I AND CDX6 AUDIO UNITS)

NOTE: The audio unit must be turned on and in radio tuner mode (AM/FM) to enter the speaker walk-around test or the self-diagnostic mode.

The self-diagnostic mode can only be entered while in the speaker walk-around test.

1. To enter the speaker walk-around test, press preset buttons 3 and 6 simultaneously and hold for 3 seconds, then release.
2. The speaker walk-around test applies sound to each speaker for 1-2 seconds. Each speaker is tested and shown on the display in the following sequence: RF, LF, LR, RR.
3. To exit the speaker walk-around test, turn the ignition switch to OFF, turn the audio unit off, or press preset button 1 for "DIA".

4. NOTE: Always document and clear any DTCs, and carry out the self-test again. If any DTCs are retrieved, refer to the DTC Charts. Diagnostic Trouble Code Tests and Associated Procedures

The Self-Diagnostic Mode has 6 manual tests available:
- Preset button 1 = ENTER DIAGNOSTICS. This test enters diagnostics from the speaker walk-around test. Metrics are available with SEL and ON buttons indicating various parameters.
- Preset button 2 = EEPROM BLOCK STATUS. This test shows validity of memory to calibrate clock and seek sensitivity.
- Preset button 3 = EXIT DIAGNOSTICS.
- Preset button 4 = SOFTWARE CONFIGURATION LEVEL. This test queries each radio system controller for its software configuration level.
- Preset button 5 = DISPLAY TEST. This test lights all the display segments for 5 seconds and then turns all segments off.
- Preset button 6 = RAM CONTENTS READOUT. To enter these tests, press preset button 1 while in the speaker walk-around test, then the desired preset button.

5. To exit the Self-Diagnostic Mode, turn the ignition switch to OFF or turn the audio unit off.
6. If the concern remains and the fault is not detected, GO to Symptom Chart. Symptom Related Diagnostic Procedures