ABS Programming Issue for Fiat
This bulletin involves ABS nodule enhancement for 2013-2015 Fiat 500E vehicles built on or before September 26, 2015, and equipped with the 83 KW electric motor. This involves both a coordinated update of the ABS module and Regenerative Brake Controller (RBC) module software.
You may encounter one or more fault codes, including U0001-00 (CAN C BUS ... sets in ABS and RBC modules), U1487-00 (implausible data received from regenerative brake controller ... sets in ABS module), and/or U1200-00 (lost communication with power inverter module ... sets in ABS module).
Reprogram the ABS and RBC modules with the latest software. Clear all DTCs that may have been set during the reflash. Upon completion of the reprogramming session, an additional 10-second key cycle (off to on) may be required to mature an active DTCM (drive train control module) allowing DTCs to be cleared.
About the Author
Information courtesy of Mitchell 1
Information for Technical Service Bulletins comes from ProDemand, Mitchell 1's auto repair information software for domestic and import vehicles. Headquartered in San Diego, Mitchell 1 has provided quality repair information solutions to the automotive industry since 1918.
Mike Mavrigian
Motor Age Editor
Mike Mavrigian has written thousands of automotive technical magazine articles involving a variety of specialties, from engine building to wheel alignment, and has authored more than a dozen books that crisscross the automotive spectrum. Mike operates Birchwood Automotive, an Ohio shop that builds custom engines and performs vintage vehicle restorations. The shop also features a professional photo studio to document projects and to create images for articles and books.