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BMW E90 2006 airbag and beltbuckla light faultcode 93AB 93B2 Battery safety terminal
01-10-2017, 08:44 AM
Post: #1
BMW BMW E90 2006 airbag and beltbuckla light faultcode 93AB 93B2 Battery safety terminal
I have the two faultycodes: 93AB and 93B2, and I'm not able to clear anyone of them.

I now discovered that the person who owned the car before me tried to fix this problem but messed it up even more.

As i have understand he first just had the problem with the Airbag lamp, and probably just the 93AB code. Which would indicate some trouble with a cable under the passenger seat.

Then he tried to fix it by rewire cables on the battery with different resistance and I have understand that he first tried two times with different resistance on two cables and got the airbag lamp to stop showing but it would come back immediately..

Then he did a third try with a resistances and instead of fixing it he messed it up even worse with the new errorcode: 93B2 and the red seatbelt light start to show.

Now I really need help to fix this mess.
My guess is that the only problem from the beginning was a broken cable under the passenger seat, but due to lack of knowledge he thought that the way to fixing it was to bypass the BST Battery Safety Terminal at the battery. And know maybe even the BST is broken (?)

So how do I reconnect all the battery cables the way they should be installed? And do I need to change/replace the BST? And do I need to code something for the new battery, it's not oem.

Here is a picture of the mess. Can anyone tell me what all the cables that ain't OEM have for suppose? And where they should go?
[Image: 15943234_1727128917601347_2081043740_o.jpg]

And here is a picture i found on google on how I guess it suppose to be (?)
[Image: CAM00476_zps2ohhgv4g.jpg]

Take care!

<turbolito/>
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01-10-2017, 09:24 AM
Post: #2
RE:
Most people end up breaking the connector when trying to replace the battery. So check if you have the wires and the pin in the bst good.
Other option is to code it out. All you need is d+kcan cable and nscexper.
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 Thanks given by: turbolito , nebundemult
01-10-2017, 11:37 AM
Post: #3
BMW RE:
(01-10-2017 09:24 AM)charles.soori Wrote:  Most people end up breaking the connector when trying to replace the battery. So check if you have the wires and the pin in the bst good.
Other option is to code it out. All you need is d+kcan cable and nscexper.

How to code it with NCS? I have the software and cable Drive

<turbolito/>
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01-10-2017, 01:37 PM
Post: #4
RE:
read air bag module and use ncsdummy and you will be able to see description to disable. if not read .trc file and post it.
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01-11-2017, 11:37 AM
Post: #5
RE:
(01-10-2017 01:37 PM)charles.soori Wrote:  read air bag module and use ncsdummy and you will be able to see description to disable. if not read .trc file and post it.

I tried to disable the passager airbag but NCS wont let me to overwrite it and it continues to be "active", why? Sad

<turbolito/>
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01-11-2017, 01:01 PM
Post: #6
RE:
you can not disable driver and passenger air bag. you might have to replace airbag or check air bag module, maybe its bad.
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 Thanks given by: nebundemult
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