Diagnostic Test

CHECK FOR AN ACTIVE DTC
NOTE:
- Before testing inspect the AUX port, USB port and SD slot for damage or debris inside the ports and device connectors that can cause concerns with system operation.
- Use a known good compatible device that works on another same kind system when testing for concerns.
- Verify that no other devices are connected to the system during testing.
1. With the scan tool, read Entertainment Telematic Module (ETM/LTM) DTCs and record on the repair order.
2. With the scan tool, erase DTCs.
3. Cycle the ignition switch from on to off, wait five seconds and then back to on.
4. Connect a known good USB device into the USB port.
5. Using the scan tool, read ETM/LTM DTCs.
  Did the DTC return?
  
  Yes
  - Go To 2
  No
  - Test complete.
  - Perform the BODY VERIFICATION TEST. Refer to BODY VERIFICATION TEST .
CHECK THE CONNECTORS AND HARNESS
1. Turn the ignition off.
2. Disconnect the USB harness connector at the back of the ETM/LTM.
3. Inspect the connectors and harness between the USB port and the radio.
  Are there any issues with the harness or connectors?
  
  Yes
  - Repair or replace as needed.
  - Perform the BODY VERIFICATION TEST. Refer to BODY VERIFICATION TEST .
  No
  - Go To 3
CHECK THE MEDIA PORT
NOTE:
This test is designed to validate the ability of the Audio/Media system to play audio from a customer's device that has been connected to the USB port on the radio or the external USB port (Universal Customer Interface (UCI) / Multi- Media port). By connecting a known good compatible device to the USB ports it will also determine if the USB port can provide power to a connected device.

It is important to determine the system features supported by the vehicle's multi-media systems, customer's personal device and their compatibility with another.

For device compatibility, refer to http://www.driveuconnect.com

Prior to performing any testing of the multi-media systems, the compatibility between the customer's personal device and the vehicle's multi-media systems must be confirmed.
1. Confirm the USB port is not a Charge only port.
2. Using a known good USB Cable, connect the USB Cable to the vehicle's USB port.
3. Connect the USB Cable to the known good compatible device.
4. Select and audio file from the known good compatible device to be heard with the volume all the way up.
5. Using the vehicle controls, place the audio system into USB Mode. (Audio system may automatically enter into USB Mode.)
  Does the Radio play audio from the known good compatible device?
  
  Yes
  - Replace the Entertainment Telematic Module (ETM/LTM) in accordance with the Service Information. Refer to RADIO, REMOVAL .
  - Perform the BODY VERIFICATION TEST. Refer to BODY VERIFICATION TEST .
  No
  - Replace the Media Port in accordance with the Service Information.
  - Perform the BODY VERIFICATION TEST. Refer to BODY VERIFICATION TEST .