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 THE PCM FOR FLASH UPDATES OR SERVICE BULLETINS

NOTE:

Diagnose all CAN B and C communication DTCs before continuing.

Turn the ignition on.
With a scan tool, read and record freeze frame data on the repair order.
NOTE:
This information is important and will be necessary for future reference.
Perform any Service Bulletins or flash updates that may apply for the PCM or TCM.
Were there any Service Bulletins or flash updates that repaired the issue?

Yes
- Repair is complete.
- Perform the POWERTRAIN VERIFICATION TEST. Refer to POWERTRAIN VERIFICATION TEST .
No
- Perform the COMMUNICATION PRE-DIAGNOSTIC PROCEDURE. Refer to COMMUNICATION PRE-DIAGNOSTIC PROCEDURE .
  NOTE:
  Treat this DTC as an IMPLAUSIBLE SIGNAL DTC when performing the COMMUNICATION PRE-DIAGNOSTIC PROCEDURE.