Question about 2005 Chevrolet Uplander
ABS lights is on with code c0040 and c0041 right wheel speed control sensor and circuit,shold I clean first harness and the wire before changing the sensor itself?Where is located the sensor and harness in order to find the connector and clean it?? Thanks
Check magnet strip attached to back side of wheel bearing ...gm notorious for delamination or simply falling apart
Posted on Dec 22, 2019
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Posted on Jan 02, 2017
Gm has tech service bulitens on this issue.First the abs sensors can and should be removed,inspect the sensor mounting surface for rust (clean w/ sandpaper) insp the sensor (note the sensor may break w/ trying to remove so be gentlel) if all looks ok reassemble and test drive. if unwanted abs still persists both hub bearings should be replaced (call your dealer and ask if a special policy exsits for this condition) usually no abs code w/ be present Good luck Ray..
Posted on Jun 18, 2009
A faulty VSS (Vehicle Speed Sensor) or related wiring can cause both of your problems, trans and ABS. If the computer doesn't know the vehicle is moving, then it won't shift the trans. If the ABS controller sees wheel speed, but not vehicle speed, it will turn on the ABS light. The VSS is located in the rear transfer case housing. But remember, it may be the VSS, related wiring, a faulty speedo buffer (usually located in the dashboard), ECM, or even the reluctor on the transfer case output shaft. You may want to have a shop scan "data stream", or even have them diagnose the problem.
Posted on Jul 07, 2009
SOURCE: 2002 2WD CHEVY TAHOE ABS
Its possible that right wheel speed sensor is dropping out early making the truck think that wheel is locking up. That will activate the ABS and let the brake go on the right wheel which will make the vehicle pull slightly left. The only way to know for sure is to watch the wheel speeds on a scanner and see which one is drpping out first and replacing that speed sensor/bearing assembly.
Posted on Sep 20, 2008
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