Diagnostic Test

WARNING: This page is about a different car, the 2013 RAM 3500 HD and 2013 RAM 2500 HD. However, it is still accessible from the selected car via links, so may be relevant.

TEST FOR INTERMITTENT CONDITION
NOTE:
If there are any antennas that have a Short to Ground or Short to Battery DTC, repair them before proceeding.
1. Turn the ignition on.
2. Using the scan tool, record and erase the DTCs.
3. With the scan tool, select: RF Hub, More Options and System Tests.
4. Perform the RF Hub LF Antenna Verification Tests.
5. With the scan tool, read the Active DTCs.
  Does the scan tool display: B1A72-01-PASSIVE ENTRY ANTENNA 2 - GENERAL ELECTRICAL FAILURE as active?
  
  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.
  - Perform the BODY VERIFICATION TEST. Refer to STANDARD PROCEDURE .
ANTENNA OR MODULE
1. Turn the ignition off.
2. Disconnect the Passive Entry Antenna 2 connector.
3. Replace Antenna 2 with a known good antenna.
  NOTE:
  For this test you could use one of the other antennas that does not have a DTC set against it.
4. Turn the ignition on.
5. Using the scan tool, record and erase the DTCs.
6. With the scan tool, select: RF Hub, More Options and System Tests.
7. Perform the RF Hub LF Antenna Verification Tests.
8. With the scan tool, read the Active DTCs.
  Does the scan tool display: B1A72-01-PASSIVE ENTRY ANTENNA 2 - GENERAL ELECTRICAL FAILURE as active?
  
  Yes
  - Replace the RF Hub in accordance with the Service Information. Refer to MODULE, RADIO FREQUENCY (RF HUB), REMOVAL .
  - Perform the RADIO FREQUENCY HUB (RF HUB) VERIFICATION TEST. Refer to STANDARD PROCEDURE .
  No
  - Replace the Antenna in Accordance with the Service Information.
  - Perform the BODY VERIFICATION TEST. Refer to STANDARD PROCEDURE .