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Les Richards
Monza


Joined: 09 Apr 2009
Posts: 193
Location: Harlow, Essex.


PostPosted: Wed Oct 16, 2019 2:39 pm    Post subject: Resetting airbag light. Reply with quote

Afternoon all, I recently changed my steering wheel to a 3-spoke type from a 996. The changeover was easy enough but now, you guessed it, the airbag light is permanently on.

Searched on here for relevant topics but all seemed to involve readers/scanners of some sort or another and even then, not always with success.

Is there an easy fix for this, please?

Mine car's 1994 vintage.

Thanks.
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Les Richards

993
Polar Silver
5152 MU
 
  
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Billy Bumpsteer
Silverstone


Joined: 12 Aug 2019
Posts: 132



PostPosted: Wed Oct 16, 2019 3:25 pm    Post subject: Reply with quote

Need someone with a Durametric or PIWIS
 
  
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angry
Montreal


Joined: 30 Sep 2008
Posts: 610
Location: East sussex


PostPosted: Wed Oct 16, 2019 7:55 pm    Post subject: Reply with quote

Did all that, with the diodes (too many to remember) and correct durametric, many times....the light would just come back on.

Bulb (airbag) now removed and I button pressed every journey Rolling Eyes
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996 Turbo Previous
993 C2.
 
  
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Billy Bumpsteer
Silverstone


Joined: 12 Aug 2019
Posts: 132



PostPosted: Thu Oct 17, 2019 6:58 am    Post subject: Reply with quote

I take it you didnt disconnect the battery Les? Probably a faulty clock spring then, it should reset if there is no fault, if it comes back on there is a fault in the system. I have changed many 993 wheels for 996 ones and had no problems with lights
 
  
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Les Richards
Monza


Joined: 09 Apr 2009
Posts: 193
Location: Harlow, Essex.


PostPosted: Thu Oct 17, 2019 7:17 am    Post subject: Reply with quote

Yes, disconnected the battery and left it over night before attempting the change. Biggest concern was that of the airbag deploying if the battery wasn't isolated.

The swap is/was straight forward as you know after that.

Was slightly off centre when I tried it so repeated the procedure again yesterday to realign the wheel.

Same with the battery, same outcome with the light.
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Les Richards

993
Polar Silver
5152 MU
 
  
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Billy Bumpsteer
Silverstone


Joined: 12 Aug 2019
Posts: 132



PostPosted: Thu Oct 17, 2019 7:26 am    Post subject: Reply with quote

Sorry, meant to write "I take it you did disconnect the battery" . I fear you may have damaged or misaligned the clock spring then, as you saw they are delicate! Really needs to be plugged into a decent machine now
 
  
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Les Richards
Monza


Joined: 09 Apr 2009
Posts: 193
Location: Harlow, Essex.


PostPosted: Thu Oct 17, 2019 7:45 am    Post subject: Reply with quote

Clock spring? Not heard of that.

Please enlighten me.
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Les Richards

993
Polar Silver
5152 MU
 
  
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stichill99
Nürburgring


Joined: 03 Nov 2013
Posts: 406
Location: Scottish Borders


PostPosted: Thu Oct 17, 2019 8:52 am    Post subject: Airbag light Reply with quote

Clock spring is the part round the steering column that you plug connector into.
I have had airbag problem in the past and people jump to conclusion it is the clock spring but in my case it was the airbag module. I had the car to 2 indies who did not diagnose this.
It was only when it went to Newcastle OPC did it get fixed . Durametric and Bosch hammer did not get to the root of the problem at Indies.
 
  
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Les Richards
Monza


Joined: 09 Apr 2009
Posts: 193
Location: Harlow, Essex.


PostPosted: Thu Oct 17, 2019 10:16 am    Post subject: Reply with quote

Somewhat belatedly, I've referred to my Bentley manual where it says turning the ignition on with the airbag removed will set an airbag system fault code and resetting will require a Porsche scan tool. I don't recall turning the ignition on but may have done so perhaps that's the next move.

Probably got lulled into a false sense of my own ability in as much as the general consensus was that the swap was straight forward; well, I suppose it is but there are one or two subtleties now evident to consider!

Bentley appears scant on specifics about the clock spring - I take it that's the disc with the writing on it seen once the wheel is off? In the two views in the Manual it appears in slightly different positions around the shaft but that may be because the steering has been turned. Is the clock spring actually fixed to anything or just 'floating'?
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Les Richards

993
Polar Silver
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Cameltoe & Heel
Barcelona


Joined: 26 Jan 2009
Posts: 1343
Location: Preston - Lancs


PostPosted: Thu Oct 17, 2019 4:48 pm    Post subject: Reply with quote

Yep I have the very same issue, I've attached half dozen different readers and none of them have worked.

It's going into Bolton OPC to be reset over winter at some point.

Trev
 
  
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