Diagnostic Test

WARNING: This page is about a different car, the 2014 RAM 1500. However, it is still accessible from the selected car via links, so may be relevant.

CHECK DTC IS CURRENT
1. Ignition ON, engine NOT running.
2. With the scan tool, select View TCM DTCs.
  Is the DTC Active?
  
  Yes
  - Go To 2
  No
  - Perform the INTERMITTENT CONDITION diagnostic procedure. Refer to INTERMITTENT CONDITION .
U0121-LOST COMMUNICATION WITH ABS MODULE ALSO SET
1. With the scan tool continue reading DTCs.
  Is U0121-LOST COMMUNICATION WITH ABS MODULE set?
  
  Yes
  - Follow the diagnostics for U0121-LOST COMMUNICATION WITH ABS MODULE. Refer to the DTC INDEX - 1500 article .
  - Perform the TRANSMISSION VERIFICATION TEST. Refer to TRANSMISSION VERIFICATION TEST .
  No
  - Replace and program the TCM in accordance to the Service Information. Refer to VALVE BODY, REMOVAL .
  - Perform the TRANSMISSION VERIFICATION TEST. Refer to TRANSMISSION VERIFICATION TEST .