Diagnostic Test

WARNING: This page is about a different car, the 2016 RAM 3500 HD and 2016 RAM 2500 HD. However, it is still accessible from the selected car via links, so may be relevant.

CHECK FOR AN ACTIVE DTC

NOTE:

Make sure the battery is fully charged before proceeding.

Turn the ignition on.
With the scan tool, create a Vehicle Scan Report and attach it to the repair order.
With the scan tool, read RF Hub DTCs.
Is the DTC active?

Yes
- Perform the Lost Communication with Anti-lock Brake System (ABS) Control Module diagnostic in the BCM. Refer to NO RESPONSE FROM ABS (ANTI-LOCK BRAKE SYSTEM MODULE) .
No
- Perform the Stored Lost Communication DTCs diagnostic procedure. Refer to STORED LOST COMMUNICATION DTCS .