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      08-03-2017, 03:47 AM   #1
Caosa
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Airbag Light and Fault code Help

Hey everyone,

I've had my airbag light on for a while now: I figured it wasn't anything major as nothing major had happened to my car.

I took it in for an Inspection II service and asked the Indy to clear the code. He said it was error code: 93D7.
He tried to reset it but it came straight back. Apparently the ACSM (active crash safety management) module needs replacing. Any validity to this?

I know i've put my knee on the seats once before could I have damaged the sensor? I've also taken my steering wheel off a few times with the battery disconnected so that I could recondition it.

What do you guys think?

Also in the event of a crash would the airbags deploy if this has not been cleared?

Last edited by Caosa; 08-03-2017 at 04:16 AM..
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      08-14-2017, 10:13 AM   #2
elerner61
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I don't doubt that one weighted knee on the passenger seat is all it would take to break the occupancy sensor mat. That said, is that error code for a broken mat?
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      08-15-2017, 11:08 PM   #3
Caosa
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Thanks for replying - nope apparently my indy said it was that the ACSM needed to be replaced?
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      08-16-2017, 12:54 PM   #4
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There are specific codes for the passenger seat occupancy sensor and for the air bags. Each is independently sensed and can be fault isolated by the SRS system.
The fault code is calling out the controller so it's an issue related to it, but it could be a power issue. If power to the controller is lost or intermittent, the fault isolation will potentially cite the controller as bad.
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      08-17-2017, 01:34 PM   #5
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ACSM Module for sale.
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      11-16-2017, 09:56 AM   #6
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Same problem for me, would like to know your solution
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      11-16-2017, 08:24 PM   #7
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It might be worth checking your VIN here. Who knows, if you are under the recall, they may cover it even though it may not be the same issue. Probably not, but some folks get lucky from time to time.

http://www.zpost.com/forums/showthread.php?t=1024175

There is also this emulator, but if the issue is the actual ACSM module, this wouldn't work, either.

https://www.ebay.com/itm/16085484439...84.m1439.l2649

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      02-16-2018, 09:53 AM   #8
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2006 z4 e85 occupancy sensor now under extended warranty

I don't know if all my complaining the NHSTA and BMW, but I recieved a letter yesterday that the occupancy mat is now having extended warranty on it for 15 years. Brought it to the dealership to get it finally fixed. If you had this repaired and paid for this, you may want to go to the BMW site about this. I'll attach copies of my letter.

Here's one question though. They are trying to tell me I need the seat belt replaced because it's also throwing a code. I've read in places that disconnecting the seat harness and the occupancy mat going bad can throw this code and will reset when the occupancy sensor is bad. They want over $300 to replace the seat belt sensor. What do I do? Will it reset after the mat is replaced. They're telling me the seat belt sensor has nothing to do with this and won't stop the display on the dashboard of the error. Meanwhile, the seat belt doesn't give an alert when not fastened at all. But is that because of the occupancy sensor being bad? Worst would be if I have the seat belt replaced later it would cost about $100 more at the dealership. I'm inclined to not have the dealership replace the seat belt sensor.

I'd appreciate any thoughts on this seat belt sensor issue.
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