ABS light on intermittently

[tomengland]

hi, my girlfriends '06 yaris TR with about 30000 miles has started showing the abs light on the dash. Im guessing it may just be dirt on the wheel sensors as it is not on all the time. Just want to know if its worth giving them a clean before she starts throwing money at a mechanic...
Thanks.

[09sedan]

get your mechanic to unhook battery first, lift car up , disconnect rear abs connectors, clean em with electrical contact cleaner, then have him put on some electrical contact grease, (if it hasn't corroded far enough to the point of total failure) if it has, unfortunately you may have to replace them (which can cost alot)