Hi
I have a BMW E60 '05 which has a fault code stored "93F9 - Low Reserve Voltage" and cannot be cleared. After I've searched on google I think it has something to do with backup power and some faulty capacitors. Does anyone have any ideea about this, do I need to replace those capacitors or rewrite a good dump? Car have been reflashed so I don't think it's a firmware issue
LE: Problem solved, changing the capacitors will cure fault 93F9. 8200uF 63V 35x35. I attached a photo with them, good luck
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Thread: E60 Airbag module repair 93F9
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16th April, 2014, 05:46 PM #1Top Poster
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E60 Airbag module repair 93F9
Last edited by dunkler; 17th April, 2014 at 07:42 PM.
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20th January, 2016, 02:54 PM #2Newbie
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Hi, thank you for repair solution.
your airbag SGM still No faults? (after replacing capacitors)
how did you remove capacitors from the electrical board, capacitors are glued with epoxy.?
Thank you in advance.
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14th March, 2016, 11:48 PM #3Newbie
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Thank you. Going to give this a try...
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20th March, 2016, 01:23 PM #4Top Poster
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Usually 83F9 will go with new capacitors but had one module which I've had to reball the CPU, strange. No errors so far
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3rd July, 2016, 10:05 PM #5Newbie
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Hi dunkler
What do u mean reball cpu? Is it the same as flashing it? Rewrite firmware?
Is it easy to open the module? What about desolderind and soldering back the capacitors? Easy? Difficult? Do you need any special equipment? How many capacitors does it have?
Sorry for so many questions. Really need some help with this.
Would two of these do the job?
Untitled.jpg
Thanks in advance.Last edited by UnDeR_ScOr3; 4th July, 2016 at 06:44 PM.
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5th July, 2016, 06:36 PM #6Newbie
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Anyone? please...
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8th December, 2016, 10:56 PM #7Newbie
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Is it easy to remove the old capacitors. I'm getting fault 93f9, voltage of reserve energy v60 n.i.o. Really interested if it can be repaired
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8th December, 2016, 10:59 PM #8Newbie
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Reballing is done a lot with computer chips, where controlled heat is applied to chips, to hopefully repair any cracks in the solder joints within.
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30th May, 2017, 09:12 PM #9Newbie
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Hh vbnnnnn
Envoy? de mon iPhone en utilisant Tapatalk
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3rd April, 2018, 12:28 PM #10Member
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Did you use 105c capacitors or 85c?
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4th May, 2018, 02:43 PM #11DK Veteran
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93F9
Hi
I encountered the same problem on a BMW E60
I changed the capacitors without result
The problem and the BST
After change all and OK
Good luck
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18th May, 2018, 08:35 AM #12DK Veteran
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Hello everyone
Eventually the problem persisted 93F9 return code
The solution I replaced them with an opportunity and reprogrammed and all and OK
I think the BGA and cause it's malfunction!
Good luck
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15th June, 2018, 08:14 AM #13Newbie
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I have them same problem and I hope changing the capacitors will solve the issue.
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16th June, 2018, 09:37 PM #14DK Veteran
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hi
Originally Posted by WackyII
I changed the capacitor that did not change anything.
I change ECU and all and returned to order
Good luck
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22nd June, 2018, 03:38 PM #15Newbie
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Hi dunkler! I have same problem than you. I can see your attached photo. Where is this module in bmw car?
Last edited by ivazol; 22nd June, 2018 at 03:52 PM.
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