my jazz is also 1.4 2002 model.
(ABS light came up, and I need find out which sensor to replace.
Never had a fault code so don't know if I can reset one, but the £6 ELM bluetooth with Torque on Android gives quite limited data on my 2002 L13A1, all sorts of fields are not populated. If I remember at the weekend I'll post some screenshots.
What we really have are the overlap of two technologies, OBD and CANbus.
Looking into this on a Fiat forum (when using multiECUscan), I found that you needed an adapter lead to get data from the ABS, SRS, etc. basically all the ancillary devices. The OBD connector only uses a couple of the pins for data, the other CANbus devices talked on an alternate non-standard pair. Seems that this may hold true for other makes, as they all use Bosch, Valeo, Delphi, Lucas, Marelli sub-systems. I won't quote what pins you swap on Fiats & Alfas for fear of blowing something up on the Honda, but this may be an avenue to be explored.
Indy garage did a code scan & reset on my dad's MX5 for £15 a while back so may be a worthwhile option, only took them a couple of minutes, ABS light should self-reset once fault is cured.
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TG