The message to which you are about to reply is shown first. GO TO REPLY FORM



 VIEW    REPLY TO THIS MESSAGE Replies to this message will be emailed.    PRINT   SAVE 

ABS / TRACS OFF Idiot Lamps Illuminated 850 1996

posted by  amznandy on  Fri Sep 19 16:14 CST 2003
Author: [PROFILE] [EVERY POST] [THREADS] [BEST POSTS] RSS Feed     [IGNORE ALL POSTS] [RELATED]

The ABS and TRACS OFF Idiot Lamps turn on and off intermitently in my 850. I can be driving around on dry pavement with very little throttle input, and the traction control will engage (audible whirring of the ABS Modulator Pump and stiff pulsating brake pedal - quickly applied to confirm my suspicion). This will light the lamps. Likewise, I can be braking on a dry surface at a low decel, and the ABS will engage. This will also light the lamps and shut off ABS/TRACS.

I think I've root caused the problem to the ABS Wheel Speed Sensors. The wheel speed sensors appear to be magnetic pickups that read gear teeth machined into the wheel bearing. I've checked the wiring visually, and all the connections appear to be sound. Is it possible that because I'm using semi-metallic brake liniings, small metallic fragments have collected on the magnetic pickup for the wheel speed sensors, causing the ABS/TRACS errors? If so, what's the best way to clean the sensors off? Has this phenomonon occured to anyone else? Any other ideas?

Thanks,
--Andy






USERNAME
Use "claim to be" below if you don't want to log in.
PASSWORD
I don't have an account. Sign me up.
CLAIM TO BE
Use only if you don't want to login (post anonymously).
ENTER CAPTCHA CODE
This is required for posting anonymously.
OPTIONS notify by email
Available only to user accounts.
SUBJECT
MODEL/YEAR
MESSAGE

DICTIONARY
LABEL(S) +
IMAGE URL *
[IMAGE LIBRARY (UPLOAD/SELECT)]

* = Field is optional.

+ = Enter space delimited labels for this post. An example entry: 240 muffler


©Jarrod Stenberg 1997-2022. All material except where indicated.


All participants agree to these terms.

Brickboard.com is not affiliated with nor sponsored by AB Volvo, Volvo Car Corporation, Volvo Cars of North America, Inc. or Ford Motor Company. Brickboard.com is a Volvo owner/enthusiast site, similar to a club, and does not intend to pose as an official Volvo site. The official Volvo site can be found here.