I've got BMW 523i, 1992 How can I know whether anti skid in functioning? should I push the ASD bottom to turn on the yellow light or no?

Check for codes...

im not sure about fuel pump sensor, but i would be looking at the abs wheel sensors or the abs wheel sensor pick ups. ive had the same kind of problem on a car b4 and its been the pick up ring broken which u can see it goes around the cv joint.as i have never worked on a ford edge im not to sure of the location of the pick ups

One or more of the sensors in the wheels that are responsible for these functions is faulty. It is sending a signal that is mucking up the calculations that control the brakes and engine for traction control and anti skid. All of them need to be checked!

Go to BMW specialist.I couldn't find anything online.

anti skid differential

problem could be the rain and driving light sensor faulty or problem could be in the light switching center control unit.the dealership has to fix.most everything on bmw computer control.

Traction Control

68-) Warning indicating ESP malfunction: Indicates that there is a problem with the vehicle traction control/anti-skid or electronic stability system.

https://carwarninglights.net/cars/bmw-dashboard-warning-lights-meaning/

Here is your Owners Manual

BMW 325I OWNER'S MANUAL Pdf Download ' ManualsLib

https://www.manualslib.com > ... > Automobile > 325i

View and Download BMW 325I owner's manual online. 325I automobile pdf manual download. ... Automobile BMW SERIE 3 SEDAN 2002 Owner's Manual.

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sounds like the crank sensor is bad.

Unfortunately there are several possibilities that are common to causing the light to come on. I would suggest taking the car in to a dealer and having them read out the fault memory. Such possibilities are a failed speed sensor, a binding DSC/ACS actuator cable, or faulty DCS/ASC control unit. If you know how, you can disconnect the speed sensors, and check for voltage output across the the terminals inside the connector going to the speed sensor while rotating the wheel. A dealer should charge you about an 1hour fee to check out your system. Due to the cost of parts involved, I would recommend having it checked before just guessing.

Actually i think it means that your anti spin control is turned off. in my bmw the button for asc is located just in front of the gearstick. try pushing the button.