Inspection and Verification
Information and Entertainment System
Inspection and Verification
1. Verify the customer concern.
2. Visually inspect for obvious signs of mechanical or electrical damage.
Visual Inspection Chart:
3. If the fault is visually evident, correct the cause (if possible) before proceeding to the next step.
4. NOTE: Make sure to use the latest scan tool software release.
If the cause is not visually evident, connect the scan tool to the Data Link Connector (DLC).
5. NOTE: The Vehicle Communication Module (VCM) LED prove-out confirms power and ground from the DLC are provided to the VCM.
If the scan tool does not communicate with the VCM:
- Check the VCM connection to the vehicle.
- Check the scan tool connection to the VCM.
- Refer to Information Bus, No Power To The Scan Tool, to diagnose no power to the scan tool.
6. If the scan tool does not communicate with the vehicle:
- Verify the ignition key is in the ON position.
- Verify the scan tool operation with a known good vehicle.
- Refer to Information Bus to diagnose no response from the PCM.
7. NOTE: Do not press any buttons on the FCIM while the ACM is carrying out the self-test.
Carry out the network test.
- If the scan tool responds with no communication for one or more modules, refer to Information Bus.
- If the network test passes, retrieve and record the continuous memory DTCs.
8. If the DTCs retrieved are related to the concern, go to DTC Charts. [1][2]Diagnostic Trouble Code Descriptions
9. If no DTCs related to the concern are retrieved, go to the Speaker Walk-Around Test, the Audio Control Module (ACM) Self-Diagnostic Mode, or the Satellite Audio Bezel Diagnostic Test, as appropriate.
Speaker Walk-Around Test
NOTE: To enter the speaker walk-around test or ACM self-diagnostic mode, the audio system must be turned on and in radio tuner (AM/FM) mode.
1. To enter the speaker walk-around test, simultaneously press preset buttons 3 and 6.
2. The speaker walk-around test stops at each speaker and applies sound to each speaker for about 1 to 2 seconds. Each speaker is tested and displayed on the FDIM screen in the following sequence: RF, LF, LR, RR, SUBWOOFER.
3. To exit the speaker walk-around test, turn the key to OFF, turn the audio system off, or press preset button 1 for diagnostics.
Audio Control Module (ACM) Self-Diagnostic Mode
NOTE: To enter the ACM self-diagnostic mode, the audio system must be turned on and in radio tuner (AM/FM) mode.
1. To enter the following tests, press the desired preset button while in the speaker walk-around test or while in the ACM self-diagnostic mode.
2. The self-diagnostic mode has the following functions available:
- Preset button 1 = On-Demand Self-Test. This button runs the on-demand self-test.
- Rotating the TUNE dial allows scrolling of any DTCs found during the test while in this menu.
- Preset button 2 = Display Continuous DTCs. This button enables viewing of any continuous DTCs that have been logged.
- Rotating the TUNE dial allows scrolling of any DTCs while in this menu.
- While continuous DTCs are being displayed, pressing the EJECT button clears all present DTCs.
- Preset button 3 = Signal Strength Test. This button displays the antenna signal strength.
- Preset button 4 = Software Version Display. This button displays the ACM software version.
- Rotating the TUNE dial allows scrolling of all audio subsystem software versions while in this menu.
- Preset button 5 = Display Test. This test illuminates all audio display segments of the FDIM for 5 seconds, then turns all segments off.
- Preset button 6 = Configuration Status. This button enables ACM configuration status.
- Rotating the TUNE dial displays the ACM part number while in this menu.
3. To exit the self-diagnostic mode, turn the audio system off or turn the key to OFF.
4. If the concern remains and the fault is not detected, GO to Symptom Chart - Audio System to continue diagnostics. Audio System
Satellite Audio Bezel Diagnostic Test
NOTE: To enter the satellite audio bezel diagnostic test, the audio system must be on and in SAT mode.
1. To enter the satellite audio bezel diagnostic test, simultaneously press and hold the SIRIUS button and preset button 2.
2. Upon entering the self-test, the ACM produces 2 continuously alternating tones of different pitch, one for the right channel, then one for the left.
3. The test continues by displaying any DTCs currently present. If no DTCs are present, NO DTCS is displayed. If there are DTCs present, the FDIM auto-scrolls through the list of active DTCs.
4. Historical DTCs can be viewed by pressing the SIRIUS button and preset button 2 while in the active DTC mode.
- If any DTCs are present, pressing the SIRIUS button and preset button 2 prompts CLEAR DTCS? to be displayed.
- To clear historical DTCs, press preset buttons 1, 2, and 3 consecutively within 4 seconds.
- To exit historical DTCs (with or without clearing DTCs), press the SIRIUS button and preset button 2 simultaneously.
5. If no historical DTCs are present, pressing the SIRIUS button and preset button 2 simultaneously while in active DTC mode displays the DLP software version.
6. To exit the satellite audio bezel diagnostic test, press the SIRIUS button and preset button 2 simultaneously while the DLP software version is displayed, or turn the audio system off.
7. If the concern remains and the fault is not detected, GO to Symptom Chart - Audio System. Audio System