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Discussion Starter · #1 ·
Never had any problem with the SRS light illuminating over the last 10 years and several 9000s , until now.
I have just gone though the painful process of swapping my all powered seats from a 95 V6 9000 into a 97 9000CSE that had manual seats.
This involved swapping the seat belt systems over too as the belt mounts differ between the two cars (at the seats).
This means of course I have accessed the B post (that is fun) and removed the pretensioners lock stock and barrel.
Everything is now reassembled and the belts work fine. However, now the SRS light in the centre of the pictogram is showing all the time ( not flashing).
The handbook tells me it should light on ignition and then go out if no fault found. Mmmmmm cannot say I have ever seen it come on before.

II am guessing I have done something wrong with the pretensioners !
Anyone been there and done it ?
I am 100% all went back as before ,but if the fault may lay elsewhere I would rather look there first. Those B posts and adjustable seat belt anchors are a b*****d to get on and off.

On the subject of ba***d jobs, any tips on the rear door cards and how to get the lock linkage to stay put ????
 

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Discussion Starter · #3 ·
Thanks for that but all fuses have been checked and are ok.
Turn ignition on and the light comes on, it then goes out for a nano second (easily missed), comes on and stays on.
The only things relevent to the SRS that have been touched are the seatbelt anchors and pretensionors, it certainly did not come on before.
 

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Discussion Starter · #5 ·
Ken

I have to suspect the seat belt pretensioners. The airbag has not been touched whereas the seat belt pretensioners have been disconnected and then reconnected.
I have had the B post covers off again today, just to make sure I did in fact reconnect the units. Sure enough, all as they should be. Light still on though.

My guess is that the system now needs a reset and my second guess is that it is a Main dealer only technique. Whoever thought these main dealer resets were anything other than a main dealer cash cow.
Oh well, looks like a pictogram bulb/fuse removal is going to happen.
 

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Have you tried a battery off reset ?

Does the car need to know you have the seatbelt pretensioners? maybe an ecu thing or is it independant?
 

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Did you have the ignition on in any position besides off? If it was on and you unplugged the tensioner from the 97 it will throw a code that may be stored until you reset it by either tech II or unplugging the battery.
 

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Discussion Starter · #8 ·
Hi
The ignition was off when the seats and seat belt assemblies were swapped.
Disconnecting the battery makes no difference, the light is on.
 

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You will have to get it cleared with Tech II. Someone correct me if Im wrong but if they changed the design on the pretensioners and the resistance going through the pretensioner has changed, the SRS system should sense this and throw a code.
 

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Discussion Starter · #10 ·
Hi
I don't think the design of ther pretensioners changed at all. The reason I swapped out the complete seat belt assembly is that the fittings at the seat end were very different.
I am not sure if the difference was year related ( 95 or 97) or because the 97 seats were manual adjustment and the 95 were all electric.

It was simply a case of disconnecting one assembly from the loom and connecting the replacement.
All power was off at the time so any system change/fault would only be seen when the ignition was turned back on, unless of course the pretensioners are permanently monitored whether ignition is on or off.
That being the case, perhaps I should have disconnected the battery first rather than simply rely on ignition off.

Does anyone know where the SRS ECU is located ?
 

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When the key is turned on, the SRS system does a check of every wire of the system. If any is disconnected or has the wrong impedence, it triggers the light on and there's no way to turn it off but the Tech2. Disconnecting the battery won't do anything.
So, my guess is that you either turned on the key while some pretensioner was disconnected, or you intalled the wrong pretensioners or you intalled them somehow in the wrong way.
Just have the light reset by a dealer with a tech2, if tit goes away you're all set, if it doesn't, then you'll know that the probelm is in the tensioners. Easy ;)
 

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twoturbos said:
Hi

Does anyone know where the SRS ECU is located ?
Below the radio. Mounted on the tunnel. Just remove the inside kick panel in front of the centre console below the dash.

My two cents worth

I just have a drivers airbag. My SRS light starts flashing, 3 resets with TECH II same CODE passenger Airbag problem. After researching, I find out 91-94? 9000s use a two bag SRS ECU with a resistor substituted for the passenger airbag. Cut a long story short, I pulled the wiring from the SRS ECU sprayed some WD40 on the pins. Get the thing reset 4 months later no flashing light.
 

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For how long was the battery disconnected before you even touched the tensioners? Haynes says that at least 30 min have to pass by, so that there is no voltage in the capacitor in the system...


Klim
 

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Discussion Starter · #14 ·
tatt001 said:
Below the radio. Mounted on the tunnel. Just remove the inside kick panel in front of the centre console below the dash.


Ok, I can find nothing at all there. Bear in mind I have a 95 V6 here in bits for parts. I have radio etc fitted in the car. No seats or carpets. I can see nothing remotely like an ECU anywhere in the vicinity of the radio or near the tunnel.

I assume the 95 and 97 used the same location for thje SRS ECU ?
 

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Discussion Starter · #15 ·
Ok
I have found the ECU hidden right up toward the bulkhead.
I was hoping that swapping the ECU with one ( I assume this is still the case) that did not show an error may clear the lamp.
Further 'net research suggests that low voltage at the battery will throw the SRS lamp. I did not disconnect the battery whilst doing the interior swap but doors etc were open for many hours. It is possible I guess that battery voltage dropped to the point where there was insufficient power to fire the airbags and up pops a light.
 

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whatever you do you'll still need someone with a tech II to reset the light. my undersanding is when its on its on.

take it to a dealer or even better a specialist and ask them nicely. its a two minute job and would be pretty brutal if they charged you for it.
 

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twoturbos said:
Ok
I did not disconnect the battery whilst doing the interior swap but doors etc were open for many hours. It is possible I guess that battery voltage dropped to the point where there was insufficient power to fire the airbags and up pops a light.
You must disconnect the battery for at least 30 minutes as mentioned before. If you work on any SRS components. That's more than likely the reason the SRS light is on.

A low battery could be the reason, I would get the SRS checked with a tech II. It will tell you what's wrong. Is the Battery showing 12v on the volt meter when you turn the car on?
You can swap the ECU units, but make sure they match especially the connectors. That's what I was going to try. The SRS ECU I bought was totally different to the one in the car, both SAAB ECUs.
 

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Mine is the same setup and all error codes pulled are the same one (but don't recall if it refers to a passenger airbag problem ...... oh but that's a whole other issue, bada-bing :lol::eek: ).

Q: why did you use WD40 ? And given that it's water-based, is there risk of those pins rusting in future ?

tatt001 said:
I just have a drivers airbag. My SRS light starts flashing, 3 resets with TECH II same CODE passenger Airbag problem. After researching, I find out 91-94? 9000s use a two bag SRS ECU with a resistor substituted for the passenger airbag. Cut a long story short, I pulled the wiring from the SRS ECU sprayed some WD40 on the pins. Get the thing reset 4 months later no flashing light.
 

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SaabKen said:
Q: why did you use WD40 ? And given that it's water-based, is there risk of those pins rusting in future ?
I might be wrong, why would WD40 contain water? It's supposed to displaced H2O.
 

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Discussion Starter · #20 ·
I can confirm that swapping the ECU for one that had no codes when removed makes no difference. Either it is a Tech II reset or I have a problem.
I did read on another site that an owner did something similar and about 50 starts later the light went out.
I will let you know if that happens :)
 
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