Replaced master cylinder now brake + RABS lights on | Ford Explorer Forums

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Replaced master cylinder now brake + RABS lights on

runderwo

Well-Known Member
Joined
August 4, 2009
Messages
141
Reaction score
3
City, State
Tulsa, OK
Year, Model & Trim Level
91 XL
Had a bad master cylinder which I replaced. The new master did not come with the fluid level sensor so I popped the old one out and popped it into the new one. Now brake & RABS lights are on solid which means low fluid level, but the reservoir is full. Is there a way I can test the wiring by shorting some of the pins in the harness together, I seem to remember that being mentioned in something I read? If anyone has a pinout for the harness that would be great.
 






Lol, that was dumb. The float in the reservoir got hung up, probably when I turned it upside down while installing it. It was stuck at the bottom and causing the warning light to come on. Everything's fine now.
 






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