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.

VERIFY DTC IS ACTIVE

Turn the ignition on.
With the scan tool, read active DTCs.
NOTE:
If the scan tool displays DTC: U0019-01-CAN B BUS - GENERAL ELECTRICAL FAILURE, diagnose and repair this DTC before proceeding.

Does the scan tool display this DTC as active?

Yes
- Refer to NO RESPONSE FROM TPM (TIRE PRESSURE MONITORING) MODULE and perform the NO RESPONSE FROM TPM (TIRE PRESSURE MONITORING MODULE) diagnostic procedure.
No
- Refer to STORED LOST COMMUNICATION DTCS and perform the STORED LOST COMMUNICATION DTCS diagnostic procedure.