Diagnostic Test

CHECK FOR AN ACTIVE DTC
1. Turn the ignition on and open one of the front doors.
  NOTE:
  A front door must remain open whenever checking or erasing Radio DTCs.
2. With the scan tool, read Radio DTCs and record on the repair order.
3. With the scan tool, erase DTCs.
4. Cycle the ignition switch from on to off, wait five seconds and then back to on.
5. With the scan tool, read Radio DTCs.
  Did the DTC return?
  
  Yes
  - Go To 2
  No
  - Perform the TESTING FOR AN INTERMITTENT CONDITION procedure. Refer to TESTING FOR AN INTERMITTENT CONDITION .
CHECK THE ANTENNA CONNECTION
1. Turn the ignition off.
2. Disconnect the Antenna connector at the back of the Radio.
3. Inspect the Antenna connections.
  Are the Antenna connections clean and secure?
  
  Yes
  - Go To 3
  No
  - Repair the Antenna connection as needed.
  - Perform the BODY VERIFICATION TEST. Refer to BODY VERIFICATION TEST .
CHECK THE ANTENNA AND CABLE
1. Connect the Radio Diagnostic Tool to the Cellular Antenna connection on the back of the Radio.
  (special tool #9977-6-13, Adapter, Long RF RG-58 Fakra) and (special tool #9977-6-CELL-LTE, Adapter, Cellular Antenna Diagnostic)
2. Make sure one of the front doors is still open.
3. Turn the ignition on.
4. Using the scan tool, erase the DTCs.
5. Turn the Radio on.
6. Using the scan tool, read Radio DTCs.
  Is the DTC active?
  
  Yes
  - Replace the Radio in accordance with Service Information. Refer to RADIO, REMOVAL .
  - Perform the BODY VERIFICATION TEST. Refer to BODY VERIFICATION TEST .
  No
  - Go To 4
TEST THE CELLULAR ANTENNA CABLE
1. Turn the ignition off.
2. Disconnect the vehicles Cellular Antenna cable at the Cellular Antenna.
  NOTE:
  Special tool 9977-6-13 should still be connected at the back of the Radio during this test.
3. Connect the adapter to the vehicles Cell Antenna.
  (special tool #9977-6-13, Adapter, Long RF RG-58 Fakra)
4. Make sure one of the front doors is still open.
5. Turn the ignition on.
6. Using the scan tool, erase the DTCs.
7. Turn the Radio on.
8. Using the scan tool, read Radio DTCs.
  Is the DTC active?
  
  Yes
  - Replace the Cellular Antenna in accordance with the Service Information.
  - Perform the BODY VERIFICATION TEST. Refer to BODY VERIFICATION TEST .
  No
  - Use the Radio Diagnostic Tool to locate the open circuit, repair or replace the Cellular Antenna cable as necessary.
    (special tool #9977-6-13, Adapter, Long RF RG-58 Fakra)
  - Perform the BODY VERIFICATION TEST. Refer to BODY VERIFICATION TEST .