Diagnostic Test

WARNING: This page is about a different car, the 2016 Jeep Wrangler and 2015 Jeep Wrangler. However, it is still accessible from the selected car via links, so may be relevant.

TEST FOR INTERMITTENT CONDITION
1. Turn the ignition on.
2. With the scan tool, erase all Satellite Radio DTCs.
3. Turn the ignition and radio on.
4. Put the satellite radio in seek up mode for two loops around the band cycle.
5. With the scan tool, read the DTCs.
  Does the scan tool display active: B156B-Satellite Radio Antenna Circuit?
  
  Yes
  - Go To 2
  No
  - Test complete, the condition or conditions that originally set this DTC are not present at this time. Using the wiring diagrams as a guide, check all related splices and connectors for signs of water intrusion, corrosion, pushed out or bent terminals and correct pin tension. Repair as necessary.
  - Perform the BODY VERIFICATION TEST. Refer to STANDARD PROCEDURE .
CHECK THE ANTENNA AND CABLE
1. Disconnect the Satellite Radio Antenna connector at the rear of the Radio.
2. Connect the Radio Diagnostic Tool (special tool #9977-6-SAT, Antenna) to the Satellite Antenna connection on the back of the Radio.
3. Make sure one of the front doors is still open.
4. Using the scan tool, erase the DTCs.
5. Turn the ignition on.
6. Turn the Radio on.
7. Using the scan tool, read the active Radio DTCs.
  Does the scan tool display active: B156B-Satellite Radio Antenna Circuit?
  
  Yes
  - Replace the Satellite Radio in accordance with the Service Information.
  - Perform the BODY VERIFICATION TEST. Refer to STANDARD PROCEDURE .
  No
  - Go To 3
TEST THE SATELLITE ANTENNA CABLE
1. Disconnect the Satellite Antenna cable at the Satellie Antenna.
2. Connect the appropriate Radio Diagnostic Tool (special tool #9977-6-1, Adapter) or (special tool #9977-6-3, Adapter) to the Satellite Antenna cable at the back of the Radio.
3. Connect the appropriate Radio Diagnostic Tool (special tool #9977-6-4, Jumper) or (special tool #9977-6-2, Jumper) to the Satellite Antenna cable at the Satellite Antenna.
4. Measure the Resistance across the terminals on the tool.
  Is the resistance above 52.5 Ohms or below 47.5 Ohms?
  
  No
  - Use the Radio Diagnostic Tool (special tool #9977-6, Kit, Radio Antenna Diagnostic) to locate the open or short circuit, repair or replace the Satellite Antenna cable as necessary.
  - Perform the BODY VERIFICATION TEST. Refer to STANDARD PROCEDURE .
  Yes
  - Replace the Satellite Antenna in accordance with the Service Information.
  - Perform the BODY VERIFICATION TEST. Refer to STANDARD PROCEDURE .