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ABS & Brake light on

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Old 03-07-2011, 02:55 PM
blee1ash blee1ash is offline
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ABS & Brake light on

I have a '97 f-250 with the rear wheel abs. Both the abs light and the brake warning lights are on. Brake fluid level is good and not leaking anywhere. The brakes work fine, but I can tell the abs is not working, not that the abs worked will in the first place.

I tried unplugging and cleaning the wire connectors near the master cylinder, and took the sensor out of the rear diff. and cleaned it. The lights are still on.

Any Ideas what the problem might be?

Does anyone know how to get trouble codes from this abs system?

I thought about disconnecting the abs and removing the warining bulb from the dash, but the red brake warning light is on also and I would like to have that one working incase I ever loose brake fluid.
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Old 03-07-2011, 03:36 PM
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They make a special reader for ABS systems. IMO I would take it to a mechanic with a reader because you may have to have the system bled and then reset.
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Old 03-07-2011, 04:01 PM
Lazy K Lazy K is offline
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http://www.ford-trucks.com/forums/73...abs-codes.html Have a read through this link for how to get the RABS trouble codes.
However my guess would be that the fluid level sensor is bad but just a guess.
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Old 03-07-2011, 05:11 PM
blee1ash blee1ash is offline
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Thanks for the help. I'll try to pull the codes and go from there.
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Old 03-08-2011, 11:25 AM
blee1ash blee1ash is offline
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I pulled the codes today. Got code 4, according to my chilton manual = rabs valve switch closed. The manual has very little info on the abs system.

Any iedas?
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Old 03-08-2011, 11:55 AM
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I just had the same symptoms and the same code thrown as you a couple months ago. I had the valve replaced and all is good in the world again
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