Fiat TSB #18-029-20 REV. A

2019 Fiat 500X

TSB Document:

Affected Component: ELECTRICAL SYSTEM

Summary
Flash: Powertrain Control Module (PCM) Updates This bulletin involves reprogramming the PCM with the latest available software. Customers may experience a Malfunction Indicator Lamp (MIL) illumination. Upon further investigation the technician may find the following DiagnosticTrouble Code (DTC) has been set:U0100 - Lost Communication With ECM/PCM. In addition, the customer may also experience the following:The vehicle will not crank if the ECM gets hotter than 50 °C (122°F).

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Date Published
MAY 19, 2020
NHTSA TSB #
10176582
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