ABS/brake light on

JSOMEBODY

MEMBER
1997 FORD F-150

120,000 miles 4.6L V-8.

Several weeks ago after hooking up my small trailer my ABS light and brake light came on. Truck is operating fine.

I have checked my rear abs sensor on my Ohm meter and it read 1.09. My master cylinder is full.

Could this be my sensor or something else?

4 Replies

TAURUSWHEEL

MECHANIC
718 POSTS

Does the ABS light blink? Have the codes scanned at a local auto parts store, get them and post here.

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Tuesday, April 17th, 2007 AT 6:25 PM

JSOMEBODY

MEMBER
3 POSTS

No blinking. ABS and brake lights have been at a constant on ever since.

No other obvious issues. Brakes seem to be operating fine. Going to Autozone to see what I can get out of them.

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Wednesday, April 18th, 2007 AT 10:30 AM

JSOMEBODY

MEMBER
3 POSTS

None of the Autoparts Stores could diagnose an ABS or brake light, check engine light only.

I am putting in a new rear ABS sensor and seeing what that does for me. More to come.

So I went through pretty much the options that I know. New trailer relay switch, new rear ABS sensor, removed hubs and checked assembly and pads.

Nothing has worked. Still brake and ABS light stuck on. Any help would be great.

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Wednesday, April 18th, 2007 AT 1:34 PM

BHUGG

MECHANIC
157 POSTS

I had the ABS light on my explorer come on and stay on too. Turned out the be a defective ABS relay.
Look in the power distribution box under the hood.
Try changing it out with another relay (like the blower relay) that is the same type of relay.

Good luck.

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Thursday, April 19th, 2007 AT 2:10 AM