Difference between revisions of "Trw2scan"

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[http://autos.groups.yahoo.com/group/UniDiag/?v=1&t=directory&ch=web&pub=groups&sec=dir&slk=3 Homepage of the unidiag OBD software, also providing a KKL-adapter compatible with trw2scan]
 
[http://autos.groups.yahoo.com/group/UniDiag/?v=1&t=directory&ch=web&pub=groups&sec=dir&slk=3 Homepage of the unidiag OBD software, also providing a KKL-adapter compatible with trw2scan]
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[http://www.youtube.com/watch?v=Ji8ICPtW8Yc Video demonstration of how to use trw2scan]
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[http://www.alfaowner.com/Forum/alfa-gtv-and-916-spider/336600-phase-1-trw2-airbag-diagnostics-solved.html Discussion thread on alfaowner.com]

Revision as of 19:20, 21 May 2012

The software trw2scan is the only freely available tool being able to communicate with airbags ECUs using the TRW2 protocol. This kind of ECUs is found in many cars built by Fiat until the late 90s (Fiat, Alfa Romeo, Lancia,...).

The software is used together with script files that define the communication details that are different from car to car.

The usage syntax is:

trw2scan scriptfile

Hardware

trw2scan works with USB KKL-adapters based on FTDI's FT232 chip. There are many sources found on the web, one is stated below.

To be able to connect to the GTV ph 1 (ECU 60625181) the L-line must NOT be connected. You need to modify either your KKL-adapter or the OBD2 16-pin to Fiat 3-pin adapter cable for this purpose.

ECUs known to be supported

ECU number Cars
60631206 Alfa 145/146
60625181 Alfa GTV phase 1 (Make sure L-line is not connected!)


Links

trw2scan download page

Homepage of the unidiag OBD software, also providing a KKL-adapter compatible with trw2scan

Video demonstration of how to use trw2scan

Discussion thread on alfaowner.com