Join Date: Jun 2010
Location: United Kingdom
Thanked 59 Times in 59 Posts
Mentioned: 0 Post(s)
Tagged: 0 Thread(s)
Every now and then my pedal kicks back just as you describe, at very low speeds under light pedal pressure, probably no more than once every 2 months if that. It last no more than a couple of seconds.
I had all of my driveshafts out and all the reluctor rings are good, I don't have any codes either. I 'guess' it could be a glitch in the software.
When my rings were split, I would reset the ECU (from memory I think you have to jump up and down on the pedal a number of times) all would be well until I exceeded 30mph and then the abs light came on and you are back to non abs braking. If I had hit the pedal before 30mph then the abs cut in and went crazy for a second or two and then the abs light came on so non abs braking. (when the light is on it defaults to non abs)
It sounds like your car has the same fault as mine and I would say it is not the reluctor rings. After the repair mine was seemingly perfect for a long time, cannot say exactly how long but maybe a year or more, it happens so occasionally I live with it - just be ready to snatch the hand brake!
About 20 years ago I had an XR 4x4 Sierra, the abs cut in for no reason at about 15 mph and I was helpless as the car went up the back of another, my foot was still planted to the floor with the pedal pulsating as I hit, never found out why and I still hate abs!
Back to the RAV, I also tested my deceleration sensor (under the centre consol behind the gearlever) and that was good.
I wonder how many others have the same symptoms.
FYI, the reluctor rings split because although they are made of stainless steel, the hubs they are 'stretched' onto are steel and as they rust they expand and eventually the rings split. When they split it looks like they split at a pre-determined place as the 'breaks' on mine looked identical.
I don't know what country you are in, but here we have to have our abs functioning for our annual 'MOT' (safety test) but if I was you I would disable the abs for safety sake until you find out what is wrong. Just unplug the wiring harness from the abs actuator.
Now you have checked the abs ECU, I am not so sure it is your reluctor rings since when mine were split the abs light came on and I could read a code and you say you don't have either, check the deceleration sensor before you disconnect the actuator.