Wondering if anyone else has had this problem on a 2002 outback 5MT: abs light has been on for a while with no codes showing up. Have checked all wheel sensors - all clean. Have replaced fuse and swapped out abs pump/control unit with a known good one. Wires as far as I can see look fine.
Normally requires the dealer's scan tool, the Subaru Select Monitor. However there is a manual procedure that I have from the 2003 service manual that might work. See attached procedure and tables of the corresponding ABS codes.
It all worked fine - took about 2 minutes to work it out. Looks like it is the rear right side sensor. For anyone else with abs concerns this is a really quick and easy diagnostic tool.
Thanks again for your help.