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.
- VERIFY DTC IS ACTIVE NOTE:
Make sure the battery voltage is between 10 and 16 volts before proceeding.
- With the scan tool, read active DTCs.
Is this DTC active?
Yes
- Refer to DTC INDEX - 2500 HD & 3500 HD and perform the U11B9-00-Lost Communication with RF Hub diagnostic procedure.
No
- Refer to DIAGNOSIS AND TESTING and perform the Stored Lost Communication DTCs diagnostic procedure.
- With the scan tool, read active DTCs.