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Re: 9000 ABS code 22251 Posted by sam96CS [Email]  (#852) [Profile/Gallery]
(more from sam96CS) on Tue, 4 Nov 2014 04:44:37
In Reply to: Re: 9000 ABS code 22251, Emil \'92 900, Tue, 4 Nov 2014 01:19:34 Members do not see ads below this line. - Help Keep This Site Online - Signup |
You might try clearing the ABS module's memory. The easiest way is to pull the 10 amp fuse in the ABS fuse box located under the hood. Wait about a minute before replacing the fuse.
Here are notes I made about cleaning the sensors and shutter wheels. Hope this helps:
The front sensors are hard to remove without tearing up. Loosen wheel bolts, jack the car and support on jack stands, remove wheels. Removing the 10 mm sensor bolt is easy, don't lose the washer. The front sensor fits into a hole about 3/4" in diameter and 1" deep. Do not attempt to move it out of the hole until you can rotate it back and forth without much effort. It takes a lot of effort at first to move it, especially on the passenger side, where I had to do some prying with a screwdriver between the sensor and the metal shroud around the rotor. After it will rotate by hand you can pry gently with a screwdriver under the end where the cable is attached. Pry a little, rotate a little, pry a little more. It will come out along with a split plastic sleeve. Save the sleeve. Without the sleeve the sensor will probably stick to the rusty hole. Wipe the sensor (the magnet part that fits inside the hole in the wheel hub) clean, especially on the end of the sensor. I inspected the shutter wheel with a mirror and small LED flashlight while turning the rotor. The front shutter wheels looked pretty clean (very little crud between the teeth), but the sensors had accumulated magnetic dust, especially on the right front. I attached a crevice tool to a hand vac and vacuumed the hole while turning the rotor slowly 2-3 revolutions, hoping to suck out anything loose around the shutter wheel. Don't forget to put the sleeve on the sensor before re-inserting. Reassembly isn't difficult, though you may have to tap gently on top of a sensor to make it go all the way into the hole. If the bolt doesn't line up with the bolt hole, then rotate the sensor until it lines up and threads in easily. It's a small bolt and doesn't need much torque.
Rear sensors are much easier to remove, they come out by hand. You have to move the e-brake cable out of the way to access the 10 mm bolt. The bolt isn't torqued very tight. Don't lose the washer, it prevents the head of the bolt from messing up the plastic body of the sensor. The sensor pulls horizontally out of the hole. Give it a little wiggle or twist before pulling out of the hole to make sure it isn't stuck. When you remove the rear sensor, the plastic sleeve remains inside the hole. The rear sensors get dirtier than the front sensors. Brake dust on the end of the sensor can be removed with brake cleaner or P21S (wheel cleaner). To "clean" the shutter wheels I stuck in my pinky finger wrapped in a rag and turned the rotor. This doesn't get it completely clean by any means, and it leaves a little loose brake dust to foul the sensor immediately. Put the clean sensor back in the hole without the bolt and turn the rotor a few revolutions. Pull out the sensor and wipe off the dust it just picked up. Repeat until it picks up no more loose dust.
Another method of cleaning the shutter wheels is to spray brake cleaner followed by compressed air. I didn't try that, and I don't know how well it works.
->Posting last edited on Tue, 4 Nov 2014 04:45:53.
, Mon, 3 Nov 2014 12:43:42, Tue, 4 Nov 2014 04:44:37 <-- Viewing This Message
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