Is the ABS fuse installed?
ABS help
On my recent purchase of a 1998 K2500 I have discovered that the ABS brake system is not working. Someone took the ABS fail indicator lamp out of the instrument panel so I didn't know they didn't work. I have no computer codes on the ABS but the light is now on (working).
Some said that the front wheel sensors should read about 1500 ohms each, I tested each side and they are open. They also said if I spin the wheels by hand I should read 250mv AC I think, but I have not had a chance to try this. I seem to have power at the wire terminals, so it appears they should work. Any thoughts on this?
If anyone can steer me in the right direction, I would appreciate any help or leads. The conventional brakes work fine BTW, just no pulsing in the snow/ice on lock - up.
Thanks In Advance
Some said that the front wheel sensors should read about 1500 ohms each, I tested each side and they are open. They also said if I spin the wheels by hand I should read 250mv AC I think, but I have not had a chance to try this. I seem to have power at the wire terminals, so it appears they should work. Any thoughts on this?
If anyone can steer me in the right direction, I would appreciate any help or leads. The conventional brakes work fine BTW, just no pulsing in the snow/ice on lock - up.
Thanks In Advance
1 - 2 of 11 Posts
hey..before you replace sensor...be sure the mounting pad isnt corroded. Believe it or not, this is a recall on 99 and newer GM trucks/SUVs. The smallest amount of surface corrosion lifts the sensor ever so slightly...poor/no signal. Ussually intermittent thought...ussually wont even light the ABS light. Sounds like you may have a good diagnosis...just want to maybe save you some cash for an easy check.
Pull sensor...clean mounting area....antiseeze the area and reinstall.
Good luck!
Pull sensor...clean mounting area....antiseeze the area and reinstall.
Good luck!
1 - 2 of 11 Posts
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