How to switch off abs light?

find and fix the wheel speed sensor that either not connected or broken

you will need to go see cal or other ford dealer for code abs light comes on when you have a brake problem may need new pads or wheel hub do check it as this is what stops the car and no brakes is no good pat

Because the problem is not with pads and/or calipers. If the lights come on only when you brake, you may have a light bulb out. If they come on when you start the car and they stay on, you have a problem with your ABS system (anti-lock braking system). The systems self-check when you start the car, so the light should come on and then go out. If it comes on and stays on, the ABS system has failed. You need to have the vehicle serviced to repair the ABS system.

Have the ABS Distribution Unit/Computer checked at the dealer.

NOTE: ABS Unit located under the vehicle, under the drivers seat. Listen to it with the vehicle running with no brake on... if you hear ABS motor running continuously, unplug ABS fuse in fuse block under hood to turn ABS motor off and be able to use vehicle in the meantime whether you decide to get the ABS fixed or not.. This will not affect brake operation, but will disable ABS feature. ABS and Brake idiot lights will remain on. No way to turn them off short of having the correct repair done. ABS Distribution Unit/Computer is very expensive part and requires expensive labour for replacement.

Probably want to check abs sensors on the back side of the wheels. Did you have a abs light on before the brakes where done?

I HAVE SEEN A BAD BRAKE LIGHT SWITCH.CAUSE THE ABS LIGHT AND BRAKE LIGHT COME ON.WHEN SWITCH WAS REPLACE BOTH LIGHTS WENT OFF.

Check to see if your brake pads and rotors are in good condition. Or if you have replaced the pads yourself and have not reset the wheel sensors this would cause the ABS Antilock Brake System light and the ASC Automatic Stability Control light to stay on as the ASC uses the ABS brakes with computer assistance to control the car

Ok, check the brake fluid level for a start. This could mean a few things. Your brake pads might be worn down, which would bring a yellow warning light on(triangle), at the same time with the pads being low it will have displaced the fluid, making the level low, this would be a red light on. Now because of this the body control module has detected these faults, will have turned the abs off, hence the abs light.
If brake fluid is low, this could confirm my theory.
If its low, top up with dot 5 brake fluid and take to garage to have new pads fitted.

TL

Did you get the rotors machined to specs or just change the pads.If not machined suggest you get them checked to see wether they should have been.This affects ABS equipped vehicles more severely