It is a failed wheel bearing.the hub and bearing comes with an abs sensor and when the bearing could not be located by the sensor it will turn on the abs light and make the car skip when braking.check to see if your not missing any brake fluid and that the truck is still able to brake.if all is good then change the faulty wheel bearing.if you dont want to invest right away just disconnect the connector for the abs to the bearing.braking will feel normal and youll just have the abs light on.
All 3 problems can be a leak or seal in caliper/cylinder look for leak if no leaks or broken lines ur brake problems work out to skipping is abs activating to stop vehicle abs light -can be connector out of clip to bad sensor need to have scanned to get proper code but check to make sure connectors in clips first-no pressure in brakes[brake pedal goes to floor] is a vacuum problem at power booster check lines to booster for breaks or leaks -
Cluster
warning lights
Whenever
this warning light or any other stays on in the dash it is indicating
that the systems control module (or the system sensor in the case of
lights like low oil pressure, door open indicators etc.) has detected
a fault, it then disables the system (this applies to ABS,TCS, TCM,
SRS and BCM faults and others) as long as the light is on. You must
now have the dealer hook up a special electronic diagnostic tool and
"scan" the system for the fault code that is stored for the
problem(s)
Legend of Abbreviations. ABS Antilock brake system.TCS Traction control system, TCM Transmission control module, SRS Supplemental restraint system, BCM Body control module
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