Reading and Clearing Diagnostic Trouble Codes
AUDIO UNIT SELF-DIAGNOSTIC MODENOTE: The audio unit self-diagnostic mode will automatically begin once the speaker walk-around test is complete.
1. The audio unit self-diagnostic mode has 6 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 DTCs stored. Refer to DTC Charts. If the system is OK, SELF PASS is displayed. [1][2]Diagnostic Trouble Code Descriptions
- 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 retrieved. Refer to DTC Charts. To clear all DTCs, press the EJECT button. DTCS CLEAR is displayed. [1][2]Diagnostic Trouble Code Descriptions
- 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 radio system controller for its software configuration level. SOFT LEVELS is displayed upon completion of the query. Press TUNE > to scroll view the software configuration version level.
- Preset button 5 = DISPLAY TEST. This test lights all the dual media audio unit display segments for 5 seconds. When the test is complete, DISPLAY TEST is displayed on the bezel.
- Preset button 6 = RADIO CONFIGURATION TEST. While in diagnostic mode, press Preset 6. RADIO CONFIG is displayed. Then press TUNE>. If the EQ download (at supplier plant) option and tuner configuration is not complete, then NO CONFIG is displayed. If EQ download option and tuner configuration is done correctly, then Config 1 (options), Config 2 (tuner setting), and EQ ID (identifier for EQ file downloaded) is displayed.
2. To enter these tests, press the desired preset button while in the speaker walk-around test or while in the self-diagnostic mode.
3. To exit the self-diagnostic mode, turn the ignition switch or the audio unit off.