R56 Can't reset my front brake sensor
#1
Can't reset my front brake sensor
2011 Mini cooper S.
I did a front brake job. I finally opened everything up and replaced the front sensor. However, my front brake light still comes on. I can't reset it from the Dash. I have a Foxwell so I did a quick erase on my codes. Rescanned, and it still says the front brake sensor is "present" but it still gives a fault. I have pulled the connector off, looked down in it (looks fine) and re-seated the connector. Still no love. I have put the key in and started the car to reset- no love. I have put the key on, waited 30 seconds and still no difference.
This has been a nightmare. Why? This is a brand new brake pad wear sensor.
I did a front brake job. I finally opened everything up and replaced the front sensor. However, my front brake light still comes on. I can't reset it from the Dash. I have a Foxwell so I did a quick erase on my codes. Rescanned, and it still says the front brake sensor is "present" but it still gives a fault. I have pulled the connector off, looked down in it (looks fine) and re-seated the connector. Still no love. I have put the key in and started the car to reset- no love. I have put the key on, waited 30 seconds and still no difference.
This has been a nightmare. Why? This is a brand new brake pad wear sensor.
Last edited by mini-is-for-me; 03-12-2022 at 02:32 PM.
#2
#3
IIRC, a brake check light can come on for either:
- the "expected" remaining mileage of the brake pads exceeding a calculated threshold
- the brake pad sensor touching the disc
If the former is the case, the car needs to be told that the pads have been changed. This is done similarly to i.e. resetting the engine oil replacement indicator using the BC button:
https://www.pelicanparts.com/techart..._Explained.htm
(The article wrongfully refers to a "two-stage brake pad sensor" but AFAIK, there is only a one-stage brake pad sensor (i.e. either on or off) and the calculated, remaining mileage indication. Nevertheless, the procedure to reset the latter is explained)
#4
How do I tell the car that the calculated threshold is wrong---I changed the pads. When I tab into service, then tab to the front brake and hold the button down nothing happens. No reset. It did say -140. I drove it yesterday hoping the light would go out and the computer needs some miles of continuity but no love. It now says -160.
Now I do have service on my brake fluid as well but I am going to change my real brakes next and then change the fluid at the same time.
The rear brakes show that are due for service in 1500 miles.
Now I do have service on my brake fluid as well but I am going to change my real brakes next and then change the fluid at the same time.
The rear brakes show that are due for service in 1500 miles.
#5
What I am worried about is when I watched the videos on this, everyone else is able to actually and easily pull the "car female" part of the connector a good 2-3 inches to easily disconnect and hold both halves. However, mine seems to have no spare cable. I could barely reach the back of the tab to disconnect it. Also the whole thing was cable tied there. It makes me suspect that some previous person screwed that connector up somehow. Maybe they discovered if they zip tied it a certain way, it worked so they jury rigged it. I don't see exactly how to get access to the rest of that cable and worry I will have to take the engine out just to get to it. If I could get better access to it, I could try some electrical tests. Since the new sensor is new, I sincerely doubt it won't be continuous. I give that a .00001% chance.
Does anyone know where the rest of that brake sensor cable connector goes of if there is another easy access point to get it down a few feet to do tests on it?
#6
#7
Yes, I have tried that procedure. If I had the trip meter down on the Front Brakes, after 10 seconds it goes back to the brake fluid. However, nothing resets, the Front Brakes still show up.
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#8
Assuming there is no contact/mechanical issue and you followed the above instructions by the letter, try this:
https://www.northamericanmotoring.co...ml#post3378615
(Reading the entire thread is recommended)
https://www.northamericanmotoring.co...ml#post3378615
(Reading the entire thread is recommended)
The following 2 users liked this post by giorgos:
chrunck (03-13-2022),
mini-is-for-me (03-13-2022)
#9
Assuming there is no contact/mechanical issue and you followed the above instructions by the letter, try this:
https://www.northamericanmotoring.co...ml#post3378615
(Reading the entire thread is recommended)
https://www.northamericanmotoring.co...ml#post3378615
(Reading the entire thread is recommended)
#10
Assuming there is no contact/mechanical issue and you followed the above instructions by the letter, try this:
https://www.northamericanmotoring.co...ml#post3378615
(Reading the entire thread is recommended)
https://www.northamericanmotoring.co...ml#post3378615
(Reading the entire thread is recommended)
I reset the sensor and I have driven 30+ miles and started the car 4 or 5 times and the brake sensor light hasn't come back.
#11
Did you do this procedure?
2011 Mini cooper S.
I did a front brake job. I finally opened everything up and replaced the front sensor. However, my front brake light still comes on. I can't reset it from the Dash. I have a Foxwell so I did a quick erase on my codes. Rescanned, and it still says the front brake sensor is "present" but it still gives a fault. I have pulled the connector off, looked down in it (looks fine) and re-seated the connector. Still no love. I have put the key in and started the car to reset- no love. I have put the key on, waited 30 seconds and still no difference.
This has been a nightmare. Why? This is a brand new brake pad wear sensor.
I did a front brake job. I finally opened everything up and replaced the front sensor. However, my front brake light still comes on. I can't reset it from the Dash. I have a Foxwell so I did a quick erase on my codes. Rescanned, and it still says the front brake sensor is "present" but it still gives a fault. I have pulled the connector off, looked down in it (looks fine) and re-seated the connector. Still no love. I have put the key in and started the car to reset- no love. I have put the key on, waited 30 seconds and still no difference.
This has been a nightmare. Why? This is a brand new brake pad wear sensor.
#12
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