Diagnostic Test

WARNING: This page is about a different car, the 2014 Fiat 500e. However, it is still accessible from the selected car via links, so may be relevant.

INTERNAL FAILURE DTC PRESENT

Turn the ignition on.
With the scan tool, read DTCs.
With the scan tool, erase stored DTCs.
Turn the ignition off.
Turn the ignition on.
With the scan tool, read DTCs.
Does the scan tool display C1009-49-ECU-INTERNAL FAILURE?

Yes
- Replace the Tire Pressure Monitoring (TPM) Module in accordance with the Service Information. Refer to MODULE, TIRE PRESSURE MONITORING (TPM), REMOVAL .
- Perform the TPM VERIFICATION TEST. Refer to STANDARD PROCEDURE .
No
- The conditions that caused this code to set are not present at this time. Using the wiring diagram/schematic as a guide, inspect the wiring and connectors.
- Perform the TPM VERIFICATION TEST. Refer to STANDARD PROCEDURE .