Question about 2005 Ford Focus
check your brake fluid first
remove each wheel and check your sender ring and your sensor wire and connection
if they are ok trace the sensor wires back in case there is a junction before the abs block
if that is ok
get it tested at a garage for a report and replace the parts required per the report
Posted on Feb 21, 2012
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Posted on Jan 02, 2017
when the ABS light stays on it means there is a fault present in the ABS system and the ABS has been disabled, as long as the light is on u just have regular brakes with no ABS, there are many thinbgs that can turn the light on, most common is one of the wheel speed sensors is defective, since these sensors are about $75-100 each and there are 4 of them guessing is a poor idea, so what u need to do is have the ABS systwem tested, there will be a fault code present to help narrow down the defective part or wiring.
Posted on Dec 28, 2009
The bearings on the wheels has to be installed one way only, the rotor ring is built into the bearing and if installed the wrong way round the sensor cant pick up the wheel speed causing the ligt to be switched on in the cluster. The diagnostic equipment should pick this up as a fault once the car has been driven, it will see the sensor when you do the diagnostic if the car is standing still but once the car is moving and no signal is send from that wheel it would register a fault into the memory of the PCM that you would be able to retrieve later.
There is a way for you to test the sensor yourself by using a multimeter set on volts, you jack the vehicle up at that wheel, install a vehicle stand to support the vehicle to be safe, disconect the wheel speed sensor and probe the two wires into the sensor, spin the wheel by hand and a small amount of current will be produced meaning the the sensor is working and the wheel bearing is installed the correct way, you can also do a continuaty test on the sensor by switching the multimeter onto ohms, but be very carefull, if this sensor has three wires you cant do the continuaty test because of the integrated circuit in the sensor, the three wire sensors opperate on a voltage from 5Volt and it would be destroyed by the multimeter opperating on 9Volt.
If the continuaty test passes and the bearing is installed the correct way, the most comon fault would be a break in the wiring leading to the PCM
Hope this will be helpfull.
Posted on May 04, 2009
Check this page. Very usefull for this problem.
Posted on Mar 15, 2010
You need to get a diagonstic check as sooon as the light comes on, dont turn ignition off as thi may delete the fault code Good luck Davelee
Posted on Mar 23, 2009
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