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PostPosted: Sat Apr 28, 2012 5:57 pm 

Joined: Sat Apr 28, 2012 4:32 pm
Posts: 5
Car Models: 2003 93 Convertible
Hi, this is the first time of writing.

My 2003 93 (new shape) had been showing various faults and malfunction messages associated with the key and steering lock on the SID. It turned out that the ISM (ignition switch module) was faulty. Instead of replacing it I managed to repair it and this is how I did it.

The ISM is prone to faults due to its location as dirt and liquids can easily enter.

There are plenty of articles about changing the ISM on the web, this covers how I repaired mine. I was concerned that the unit would not be manufactured to be dismantled, this is not the case, you will need a little patience, and good light however.

1. See Pic 1. with a few jeweler's screwdrivers wedged into the white plastic cover, I managed to prise to the cover off.

2. You then should have Pic 2. Clean the circuit board gold plate and metal contacts indicated with a red circle. Do not use anything abrasive you will damage the circuit board and contacts. I used "electrolube" (not the same as wd40) but you could try Isopropyl alcohol. You will need a cotton bud or similar to apply it. Mine was full of dirt and soft drink remains.

3. Bend the metal contacts slightly to ensure good contact to the circuit board. I bent mine around a bit also so they were on on a fresh piece of circuit board.

4. Clip it all back together and test.

I did this over a week ago and its been perfect ever since, no faults at all. Prior to this I was getting fault messages on most journeys.[list=][/list]

Hope this helps



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PostPosted: Wed May 16, 2012 1:11 pm 
Light Pressure Turbo

Joined: Sun Jan 15, 2012 3:51 pm
Posts: 329
Car Models: Saab 9-3 vector 2006
I've just started to get steering lock fault on my 2006 9-3!

The contacts not touching is this the only likely fault ?

PostPosted: Sun May 27, 2012 6:15 am 

Joined: Sat Apr 28, 2012 4:32 pm
Posts: 5
Car Models: 2003 93 Convertible

From my experience, and reading forums this is likely to be the only fault.

Going by how much "gunge" was inside mine I was surprised it ever worked !


PostPosted: Mon May 28, 2012 9:58 pm 
Active user
User avatar

Joined: Mon Apr 30, 2012 8:37 pm
Posts: 151
Location: folkestone kent
Car Models: 9-5 Aero 9-3 Aero cv 93 Viggen
Well done for putting this up, most people will aways fit a new unit.

Looking For A Saab Specialist?
A Saab Parts Dealer?
A Saab Tuner?

PostPosted: Fri Nov 02, 2012 12:38 pm 
Active user

Joined: Tue Oct 30, 2012 12:21 pm
Posts: 25
Location: Melbourne, Australia
Car Models: MY03 9.3 SS Vector 2.0t Auto
G'day chrisxbates,

my "new" 9.3ss won't start in the conventional way, so I think I'll do what you did and pull apart the ISM.. could you please tell me how you removed the unit from its location?



PostPosted: Tue Jan 08, 2013 5:14 pm 

Joined: Tue Jan 08, 2013 5:11 pm
Posts: 1
Car Models: SAAB 9-3 Convertible
OP, do you think that the the flap mechanism can be fixed by taking the ISM apart - Mines stuck, and used to be able to be freed by inserting a pen into the hole with some force, but now it just gets stuck. At the moment one of the console panels is off and it has to be freed using a hairpin or small allen key pushed back upwards. I'm halfway through taking the ISM out, but wondering if I need to get a new one on order first....


PostPosted: Thu Aug 30, 2018 3:55 pm 

Joined: Thu Aug 30, 2018 3:50 pm
Posts: 3
Car Models: 2006 9.3 Vector Convertible

You really need to remove the centre console to take out the ISM. Its a bit of a job but worth it. Its a good opportunity to give everything a good clean.

I had errors with key, central locking and steering lock. I also had persistent problems with fuel and temperature gauges. For reasons I cannot fully explain it was all fixed by refurbishing the switch.

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