1999 f150 4x4 4.2L.......I have the abs light on and the brake light on all the time. The brakes are working just fine but i did check the code on the abs light and it flashed 4 times and everyone else says that 16=Nothing wrong. So i am stumped on what the 4 flashes=. I replaced the rear sensor and it has not changed anything so if any one has an idea what to do next please let me know.

Thanks,
sledx

 

I have the exact same problem. I recently had my truck back to the dealer to find out why the dash brake and abs light stay on. I also changed the rear speed sensor with no luck. Anyhow, the dealer says it is a bad rabs control module. They wanted $780.00 for the parts and labor. The service manager said that most people simply ignore the light rather than pay the steep price. I found the part on the net for $475. I am still looking for a better price. Perhaps a used one. Any info on how difficult this would be to change would be a great help! I am wondering if any special tools are needed. I believe the module is located under the radio behind the dash. I think the 4 wheel abs module is next to the power brake booster. My truck is a 1998 and only has rear anti locks.