Abs light on

the brakes are fixed first.
a real brake shop finds the actual cause of that lockup. first !
it can be caused by many things or a very bad ABS modulator.
fix brakes first then ABS,
no abs in the the world can hide bad brakes, at tad weak yes.
cause (GENERIC)
ABS is telling you the brakes (actual ) are failing, and even you know that too. (locks up) if it locks up the sensor goes dead, ABS does not understand or like that ever, and says the sensor is dead but is al lie
kinda, no sensor is good ,just the pulsed of it are dead, and expected. for any lockup. like this.
so at the failing wheel the whole assembly is fully inspected for damage ,rust seizure or breakage.. and make sure ABS end is not causing the lockup.
even axle bearings.checked. LR axles.
forget ABS, fix brakes, test them first, fully and fully inpected.
and service brake failures here, all here LR checked

It's probably a faulty ABS sensor /cable on one of the wheels.

check the fluid again,, if the brake pedal feels spongy at all,, you have air in the lines still, if so , bleed the brakes,, unhook the battery to clear the light, and try again

hello tra.... these two issues are related. The ABS sensors often go bad as the vehicle ages. Once the lights start acting up the failure of the ABS is not generally far behind. The only bright light there is that the only function of ABS is the autopumping of the brakes. Once that goes, you still have brakes, you just have to manually pump them when on icy or wet roads.

The cost of replacing these ABS sensors, and ultimately the ABS system is generally cost prohibitive. Joe

Thanks for choosing Fixya!

Good chance that the ABS sensor need to be adjusted to the speed ring on the hub. it's a common thing that happens when the brakes has been service and the technician did not measure the gap between the sensor and speed ring on the hub. Clean the speed ring on the hubs and measure the gap the the ABS sensor to the speed ring and double check the wire harness. inspect for any damages like corrosion. The gap should be 0.005 to 0.050 inch (0.127mm to 1.270mm), use a brass feeler gauge so it wont stick to the magnetic abs sensor. Good luck and hope this helps.

It's possible it's the ABS brake sensor is faulty. The sensor attaches to the brake caliper. The only way to verify if the ABS is functioning is to test them in a skidding situation which is unsafe. Normal braking would not give any indication if the ABS is functioning. You shouldn't automatically assume they are functioning and should get the car checked out at a shop that features free checks. Best of luck.
Greg

I would take the car right back to the shop that cleared the code. There was a 50/50 chance of clearing the codes. The good thing is now the shop will be able to pin point the failure with the fresh code. Most of the time the abs controller is going out. The controller also might not be readiing the tire sensor . If one sensor goes out the abs light will come on. The controller could be working fine and one of the sensor has to be replace. That is the cheapest cost. The abs controller and abs hydraulic controller is big bucks to replace , The part is around 1500 bucks. The tire sensor are around 25.00 35.00 each.

The manufacture has made the vehicle to where if the abs system is not working correctly then the brake system will automatically work as normal brakes with out the abs system.

Yeah its a pain in the you know where to take back but I would fight tooth and nail with the shop not to charge you any additional check out time. If the shop stands behind there work they will not charge you additoinal check out time.

Good Luck

The first step in diagnosing this problem is to hook it up to an ABS scan tool and see what trouble codes it has put out.

Could be a wheel bearing they have a sensor that affects the abs and ets. If you plug it in to a computer it will tell you which wheel has the bad bearing and sensor

if you have put over sized tires then is required for the car this will happen because it will cause the ABS to not function correctly