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Old 08-26-2023, 11:38 AM   #1
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Airbag module replacement confusion.

I have read a lot of discussions on airbag modules and remain confused.
It is mentioned in many threads that the VIN number has to be programmed into a replacement airbag module, using one of Porsche's diagnostic tools. But there are a couple of threads of just replacing the module with a used one, resetting the error codes and all is good.
This is an example:
DIY: Airbag Module replacement & reset
So is the reprograming of the VIN really necessary?

My Durametric gives a list of codes for the airbag, but the important ones are:
"3 - Supply voltage
195 - Control module internal fault - All fault codes over 100 indicate a critical fault and usually require a new control module"

I checked the supply voltage and it is OK... so it would seem that the module is defective.

Thus my interest in replacing the module.

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Old 08-26-2023, 12:33 PM   #2
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Yes, it may need to be coded to the car, depending upon where the module came from. If it is out of a similar year Boxster, probably not, if it is either new or reconditioned, or from a model other than a Boxster, then yes, it will need to be coded to the car. And it might be worth the cost to get it checked by someone with a PIWIS unit, a brand new module is about $1,200 at retail.............................
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Last edited by JFP in PA; 08-26-2023 at 12:37 PM.
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Old 11-26-2024, 02:36 PM   #3
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Did you ever figure this out? I replaced my module and now I’m getting code 72 only. I can reset it but it comes right back.
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Old 11-26-2024, 06:55 PM   #4
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Quote:
Originally Posted by Zogg View Post
Did you ever figure this out? I replaced my module and now I’m getting code 72 only. I can reset it but it comes right back.
No I never got around to replacing it, but since I'm selling the car I may have to do this in the Spring. Hopefully others will jump in.
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Arctic Silver 2000 Boxster S - bought with a broken engine, back on the road with the engine replaced
Green 2000 Boxster 5-speed and 1978 928 auto
1987 924S 5-speed (Sold) - Blue 2000 Boxster 5 spd (Sold)
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Old 11-27-2024, 03:38 AM   #5
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Remember when, in the old days, if you needed to repair something... needed answers... a manual... you went to the library, and they told you the book was out and would be retrned in a month...

No, you don't.

Hey... the Internet was invented. That devil, Google... worrks!

Fault codes 70, 71, 72, 73
Child seat detection
Diagnostic conditions
• Ignition on
Possible cause of fault
♦ Incorrect coding
♦ Plug connection of child seat detection belt buckle not connected or damaged
♦ Short circuit to B+/ground or open circuit in the wiring between the airbag triggering unit and the child seat detection belt buckle
♦ Child seat detection belt buckle faulty


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