- Jul 30, 2020
- Reaction score
- Vehicle Year
- Make / Model
- Ford Ranger
- Engine Type
- 4.0 V6
- 2WD / 4WD
That's not good. It should toggle on and off when you press and release the brake pedal. I'm not 100% sure, but I think that it even does it with KOEO (Key On, Engine Off). I'd check that for you on my 2004 Ranger but can't at the moment.Yeah pressing brake on and off and BOO only says on. However i did not try it while car was on.
OK, good to have that info when diagnosing.Yes the [dashboard] Brake light IS on. Also lights up and light goes off when the parking brake is engaged and disengaged,
Out of curiosity, are your brake lights (talking about the ones at the rear of the truck now, not your dashboard "BRAKE" lamp) on all the time?
Sorry to hear that. I think you're on the right track, though, by focusing now on the brake switch and "BOO". I wouldn't be surprised that an always-on BPP/BOO condition would confuse the RABS module, probably even to the point of lighting the dashboard ABS lamp as you've seen.ABS rear speed sensor came in and it DID NOT fix it.
I don't know, but a quick check on RockAuto's website makes me think that the answer is "No".I changed the brake switch a week ago, do they make separate brake switches for the 4wabs and the RABS.
I wonder if you could try disconnecting the brake switch to see if FORScan's "BOO" report changes from "On" to "Off"?
Hang in there, I think you'll eventually solve this! I'm keeping my fingers crossed.