Diagnostic Test

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

PCM PROGRAMMED WITH INCORRECT SOFTWARE

Ignition on, engine not running.
Program the PCM in accordance with the Service Information. Refer to PCM/TCM PROGRAMMING .
Start the engine.
Allow the engine to reach normal operating temperature.
With a scan tool, select read the active DTCs.
Does the scan tool display U0300-INTERNAL CONTROL MODULE SOFTWARE INCOMPATIBILITY?

Yes
- Replace and program the Powertrain Control Module (PCM) in accordance with the Service Information. Refer to MODULE, POWERTRAIN CONTROL, REMOVAL .
- Perform the POWERTRAIN VERIFICATION TEST. Refer to PCM VERIFICATION TEST .
No
- The Powertrain Control Module (PCM) has been successfully programmed. Test is complete.
- Perform the POWERTRAIN VERIFICATION TEST. Refer to PCM VERIFICATION TEST .