My dodge ram 1500 abs light is flashing what could cause it. changed the censore and still flashing. before i changed it the brake light and abs was on.

Have it checked for DTC'S - diagnostic trouble codes . ABS and brake light on , codes are stored in the EBCM - electronic brake control module . Could be ABS relay , control module , pump motor and the only way to find out what the problem is , have checked for DTC'S

Hi Javier, Im AL the owner of Big As Auto Repair

Javier, ABS Module is located under the hood. It mounts to the side of the hydraulic brake system. Hope this helps and please visit my auto-repair website and check out the satisfied customers and give me a shout while your there. http://www.bigasautorepair.com/

ABS and Brake warning lights intermittent may be caused by a failing wheel speed sensor(ABS Sensor) and /or its connector. You may have one on each wheel hub(4WD) or if 2WD, a sensor may be on the rear axle differential center.

Do you have a ABS Light at the same time?

WHEN YOU REPLACE IT WITH A USED ONE ,IT NEEDS TO PROGRAMMED TO THE CAR (THEY CALL IT MARRY THE CAR IN ORDER FOR THE LIGHT TO GO OUT)

Check the ABS Wheel sensor, it could be bad setting off the ABS/Brake light.

check the sensors and connections may have loosened or knocked one loose if they look ok than have truck scanned most auto stores such as auto zone/advanced auto scan for free the trouble code will narrow the problem

check again the connections and that it is clipped on to supports correctly -also check the wires may have damaged or frayed one of the lines

You probably have a problem with your abs system ie a wheel speed sensor etc. this will cause these lights to come on.

No definately the speedo....