Have an F150 (1999) and the abs light stays on. I need to know more about it. Trying to repair now. Any help would be appreciated.
Thanks

 

There should a sensor in the top of the rear diff, held on by one 10 mm bolt , has 2 wires coming outta it , pull that out an see if its fouled with any metal chips ? , Most times you can clean it an re-install, Also check your brake fluid , theres a lil float in the master cyl , if it touches bottom of rev. it will ground out an lite ABS , Also under Master is a sensor for the float , it goes bad , ,, An near the battery on the RAD. support, is a small black ground wire if it getting a bad connection it will set off lite ,, There should be a test port single wire you can ground out , an gets codes on the 99 not sure where it is . Probaly have to get you a repair book on the girl , at most any parts store , You might try the AUTOZONE web site .