kelbahi

Hi Everyone,
I'm trying to determine if I have a faulty ABS sensor or some other issue - (durametric code 4205 - Front left speed sensor - op. circ/GND/+ short.) Common advice seems to be swapping the left/right ABS sensors and see if the fault moves with the sensor. I can't seem to get the sensor out. I've removed the 5mm bolt which holds it in, but the sensor does not move at all. I've also let it soak in WD-40, but still no luck. Any advice?
Thanks,
/Kel

jpflip

Unfortunately I also has no luck removing ABS sensors due to corrosion... I normally had to scrap the old one and clean the recess properly before installation of the new one. A failure of the ABS can also be due to faulty wiring going to the sensor and Porsche came out with a wiring kit for the ABS system. The part# is 996-612-958-00. Hope this help!


https://www.6speedonline.com/forums/...already-8.html

dprantl

I've had luck removing stuck ABS and CPS sensors by soaking them for a few hours in a 50/50 ATF-acetone mixture. That is better than any of the lubricants sold, and definitely much better than WD-40.

Dan

Carlo_Carrera

^ Good to know.

mffarrell

Use a voltmeter and test them. If you attach to the correct leads, you should get a couple of mV when spinning the wheel.

Kevinmacd

Marvel Mystery oil is a great corrosion buster!

jpflip

I like mouse milk LOL!!!! Very efficient....

Carlo_Carrera

Good tip. You can also use the Ohm function. It will read zero if bad, somewhere between 500-1100 if good.

racdavies

Not sure how to use the ohm function? I only have duraemtric. Is it doable on that?

Mike Mullins

Ohm function on a digital multi meter, Not on Durametric, that will just show location of fault