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BMW Error code 20 70 28 ?
- Simn
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BMW Error code 20 70 28 ?
Can someone tell me what does it mean? I tried to understand but without luck, please help!


- 2012 - 2015, 2.5i 2003 Sterling grey, convertible
2015 - , 3.0si 2006 Black, Coupe
- Simn
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- Joined: Wed Feb 06, 2013 8:40 pm
Re: BMW Error code 20 70 28 ?
Come on!
- 2012 - 2015, 2.5i 2003 Sterling grey, convertible
2015 - , 3.0si 2006 Black, Coupe
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Re: BMW Error code 20 70 28 ?
did you read..
http://translate.google.co.uk/translate ... 6bih%3D977
???
seems to be some problem either with seat occupy thing or left pillar harness?
their code is slightly different but I would think you are looking at a wiring fault on one of your airbags...
http://translate.google.co.uk/translate ... 6bih%3D977
???
seems to be some problem either with seat occupy thing or left pillar harness?
their code is slightly different but I would think you are looking at a wiring fault on one of your airbags...
- Simn
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Re: BMW Error code 20 70 28 ?
sammysquid wrote:did you read..
http://translate.google.co.uk/translate ... 6bih%3D977
???
seems to be some problem either with seat occupy thing or left pillar harness?
their code is slightly different but I would think you are looking at a wiring fault on one of your airbags...
But this guy got "Error Code: 20 70 FF" not really the same?
- 2012 - 2015, 2.5i 2003 Sterling grey, convertible
2015 - , 3.0si 2006 Black, Coupe
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Re: BMW Error code 20 70 28 ?
you're right.... they aren't "really" the same... but that is the only real reference i found and wondered if you had read it, it is only slightly different and i would be inclined to see if i could start from there
Do you want to provide some more information? Were you doing anything when the code started? have you tried clearing and how quickly does it return?
I mean the obvious answer is to go to bmw and see what they say...
Do you want to provide some more information? Were you doing anything when the code started? have you tried clearing and how quickly does it return?
I mean the obvious answer is to go to bmw and see what they say...
- Simn
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Re: BMW Error code 20 70 28 ?
Sorry im getting realy pissed off by this car nowsammysquid wrote:you're right.... they aren't "really" the same... but that is the only real reference i found and wondered if you had read it, it is only slightly different and i would be inclined to see if i could start from there
Do you want to provide some more information? Were you doing anything when the code started? have you tried clearing and how quickly does it return?
I mean the obvious answer is to go to bmw and see what they say...

I got a 2.5 2003, and I changed to a multi functional steering wheel, I did follow this guide http://www.z4-forum.com/forum/viewtopic ... 26&t=16422.
I was stupid and turned to ignition on when the airbag wasnt connected.
I bought a bypass occupancy sensor and tried to reset with INPA but still light ON.
My car was manufactured after 09/03 so I had to do like this, maybe something is wrong with the cords?
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2015 - , 3.0si 2006 Black, Coupe
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Re: BMW Error code 20 70 28 ?
Have you checked with a multimeter to check that the scotch lock is making good contact? I personally never like them, but that would be my first point of call.
Then I think I would want to try and put it back to standard and clear the error.... and then start again and check that it is something simple..
What was your reasoning for buying a bypass occupancy sensor?
Then I think I would want to try and put it back to standard and clear the error.... and then start again and check that it is something simple..
What was your reasoning for buying a bypass occupancy sensor?
- Simn
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Re: BMW Error code 20 70 28 ?
Maybe I should check with a multimeter. But the controls work.sammysquid wrote:Have you checked with a multimeter to check that the scotch lock is making good contact? I personally never like them, but that would be my first point of call.
Then I think I would want to try and put it back to standard and clear the error.... and then start again and check that it is something simple..
What was your reasoning for buying a bypass occupancy sensor?
I tried indeed to change back to the original steering wheel, but the cords were still taking electricity if u understand what i mean (like the picture i added).
I bought the bypass because i thought i broke the sensor pad in the passenger seat and that was why the airbag light was on.
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2015 - , 3.0si 2006 Black, Coupe
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Re: BMW Error code 20 70 28 ?
So have you removed the bypass? just to reduce possible issues.
The controls though are separate to the airbag leads, have you tested the airbag leads? obvs have the battery disconnected and check for continuity rather than testing voltage. I don't think the steering controls would be related so whether they work or not isn't an issue. it is the airbag connection that would bother me, have you checked it is seated in properly?
Again make sure you follow the normal procedures!
Did you use your original airbag ?
The controls though are separate to the airbag leads, have you tested the airbag leads? obvs have the battery disconnected and check for continuity rather than testing voltage. I don't think the steering controls would be related so whether they work or not isn't an issue. it is the airbag connection that would bother me, have you checked it is seated in properly?
Again make sure you follow the normal procedures!
Did you use your original airbag ?
- sk93
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Re: BMW Error code 20 70 28 ?
scan the actual satellite modules, rather than just getting the overall error.
they'll tell you exactly what the cause is, rather than just giving an ambigious error code
(in INPA, select safety, and then select the "satelline B pillar" modules - read the error codes stored in those and post up what they are.
You can also test the seat occupancy sensor in INPA.
Again, goto the satellite B pillar modules, goto "status" and then click "seat".
you can see a live feed from the occupancy sensor there.
just dont go into the "activate" menu. I've never gone there myself, but it doesn't take a genious to work out what that COULD do
they'll tell you exactly what the cause is, rather than just giving an ambigious error code
(in INPA, select safety, and then select the "satelline B pillar" modules - read the error codes stored in those and post up what they are.
You can also test the seat occupancy sensor in INPA.
Again, goto the satellite B pillar modules, goto "status" and then click "seat".
you can see a live feed from the occupancy sensor there.
just dont go into the "activate" menu. I've never gone there myself, but it doesn't take a genious to work out what that COULD do


- Simn
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Re: BMW Error code 20 70 28 ?
- 2012 - 2015, 2.5i 2003 Sterling grey, convertible
2015 - , 3.0si 2006 Black, Coupe
- Simn
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Re: BMW Error code 20 70 28 ?
I took off the scotch lock and installed the old steering wheel and tried to reset it with INPA but without sucess.
The airbag light is still ON. I tried with the old steering wheel + bypass module and still ON.
Now everything is back to original and light is still ON when Im trying to reset.
It must be the slip ring? Is there anyway i can see if the slip ring is broken?
The airbag light is still ON. I tried with the old steering wheel + bypass module and still ON.
Now everything is back to original and light is still ON when Im trying to reset.
It must be the slip ring? Is there anyway i can see if the slip ring is broken?
- 2012 - 2015, 2.5i 2003 Sterling grey, convertible
2015 - , 3.0si 2006 Black, Coupe
- sk93
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Re: BMW Error code 20 70 28 ?
you need a newer version of INPA... 5.0.2 is a good version for our cars.
have a google for "bimmerpost INPA update" and you'll find all you need
seriously, without knowing the "real" error, you'll be stabbing in the dark for days..
have a google for "bimmerpost INPA update" and you'll find all you need

seriously, without knowing the "real" error, you'll be stabbing in the dark for days..

- Simn
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Re: BMW Error code 20 70 28 ?
Gonna try get the right version of INPA latersk93 wrote:you need a newer version of INPA... 5.0.2 is a good version for our cars.
have a google for "bimmerpost INPA update" and you'll find all you need![]()
seriously, without knowing the "real" error, you'll be stabbing in the dark for days..
Tried Carsoft, this was the results (still light ON


- 2012 - 2015, 2.5i 2003 Sterling grey, convertible
2015 - , 3.0si 2006 Black, Coupe
- sk93
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Re: BMW Error code 20 70 28 ?
No idea about carsoft -never used it.
Let me know how you get on with INPA - once you get into the satellite "B" pillars and can read their error information, we'll honestly have something decent to work on!
Let me know how you get on with INPA - once you get into the satellite "B" pillars and can read their error information, we'll honestly have something decent to work on!
