Introdução

I have a 2007 Saab 9-3 Aero petrol Automatic car. It has been a joy to own and ride, but recently it started to show warning messages:

"Steering lock Malfunction. Please come to a safe stop and call service" (or something like that)

On other occasions, the key would refuse to turn. Disconnecting the battery for a while would sometimes fix the issue, but this was clearly not a safe car to drive any longer.

Googling the issue revealed that there are two components involved in starting the car:

The ISM (Ignition Switch Module) is where the key is inserted.

The CIM (Column Integration Module) is located inside the steering wheel. It is the security centre and controls the central locking, ignition, immobilisation, steering lock etc.

Both of these could be the culprit. However, whereas the ISM _can_ be replaced by a layman (i.e. me!!), the CIM requires both special tools and the electronic equipment to be able to remove and replace, and pair up with a new set of keys.

So, equipped with a Haynes "Saab 9-3 Sept 2007 to 2011 Owners Workshop Manual", a set of star shaped screwdrivers, and a camera to record all the steps, as well as a pile of clear plastic bags to put the screws in and label them (they are all subtly different in size, thread and length), I set about to replace the ISM with a unit I bought on eBay. This involves removing the centre console to get to the ISM itself.

  1. Our starting point: The center console with the ignition switch in the middle
    • Our starting point: The center console with the ignition switch in the middle

    Adicionar comentário

  2. This is the screwdriver bit used to remove all the screws.
    • This is the screwdriver bit used to remove all the screws.

    Adicionar comentário

    • This is the item we need to replace

    Adicionar comentário

    • Step one is to remove the front side panels. There is a single (covered) screw in the footwell on each side that can be removed, and the panel slides rearwards, down and out.

    Adicionar comentário

    • Unscrew and remove this screw

    Adicionar comentário

    • The panel can now come off.

    Adicionar comentário

    • Rear cover is removed next.

    Adicionar comentário

    • Next, locate the rear cover visible from the back seats, between the two front seats. Pull it sharply to the rear, and remove.

    Adicionar comentário

    • The rear side panels in front of the rear cover are now easily accessible and can be removed.

    Adicionar comentário

    • Next, remove the rubber mat in front of the gear lever.

    Adicionar comentário

    • The (shiny) gear lever surround trim can now be prized off, starting at the rear, and removed.

    Adicionar comentário

    • Removing the gear lever surround trim exposes a single screw holding a retaining frame underneath the gear change mechanism.

    Adicionar comentário

    • Unscrew the retaining screw

    Adicionar comentário

    • Remove the retaining frame

    Adicionar comentário

    • Slide out horizontally the protective plastic cover underneath the hand brake.

    Adicionar comentário

    • This exposes a single screw. Remove this.

    Adicionar comentário

    • On the other side, remove the CD holder top cover,

    Adicionar comentário

    • unscrew the two screws inside,

    Adicionar comentário

    • and remove the CD holder itself. This exposes another single screw. Remove this.

    Adicionar comentário

    • Remove the bottom rubber cover in the centre console storage unit.

    Adicionar comentário

    • This exposes two screws that need removing.

    Adicionar comentário

    • The drinks holder has another rubber mat.

    Adicionar comentário

    • There are no screws underneath, but this is a good opportunity to remove it and clean it separately.

    Adicionar comentário

    • Underneath the air vent controlling air flow to the passengers from the center console sits a square duct.

    Adicionar comentário

    • The Haynes manual suggests pulling this out next, and although it is possible to do so, it requires force, and is much easier to do later when all other fixings have been removed.

    Adicionar comentário

    • There are two cable bundles connected to the center console from the rest of the car. One is connected via a large, square plug with a red tab.

    Adicionar comentário

    • Push a screwdriver inside the red tab and pull, and the connector splits neatly apart.

    Adicionar comentário

    • The other is an earth connector near the rear of the console. This can easily be pulled away.

    Adicionar comentário

    • Remove two screws located in front of the gear lever.

    Adicionar comentário

    • The next bit is a bit fiddly to get to: There are two screws going horizontally, one underneath the handbrake,

    Adicionar comentário

    • the other on the CD holder side. These need to be removed. There is limited workspace. Use a separate loose screwdriver bit, and a spanner to twist it.

    Adicionar comentário

    • The center console is now loose, and can be puller backwards and upwards, and removed from the car.

    Adicionar comentário

    • Tip the centre console upside down and locate the ISM ignition switch.There are four spring clips holding it in place. Use a screwdriver to compress each clip in turn, whilst pushing the switch out of its socket.

    Adicionar comentário

    • The switch is connected to a cable via a connector. Locate the torque lever and twist this to release the connector.

    Adicionar comentário

    • You now have the ISM in your hand. Swap this with a replacement unit. Mine cost £126,00 new from eBay. Clip it in the same spot, and connect the cable again.

    Adicionar comentário

    • The rest of the procedure is doing the dismantling in reverse. However, this is the best order that I found (choosing the wrong order once or twice):

    Adicionar comentário

    • The square air conditioning duct goes in first. The console goes in next. It is a bit awkward to riggle past all the lugs, screws, tabs and cables, but just persevere. Once in, fit all the screws holding it in place, including the awkward ones.

    Adicionar comentário

    • Connect the two cables. The earth connector is push-on, and the square plug self-locks when the red tab is pushed.

    Adicionar comentário

    • Next, fit the retaining frame underneath the gear lever, all screws around it, then the shiny gear lever surround trim, and finally the rubber mat in front of it. Fit the side rear panels, then the front panels (fasten them with the single screw), then the rear cover.

    Adicionar comentário

    • With all side panels in place, re-fit the screws around the gear lever and CD holder. Finally, slide the handbrake cover in place, and screw the CD holder in. All rubber mats put in place (you *did* clean them whilst you had the chance, right..?). You are done!

    Adicionar comentário

    • Touch Wood, my car is now purring, with none of the issues I had before. Having heard quotes from around £1,000 upwards for a complete ISM / CIM refit, I am well pleased with the result.

    Adicionar comentário

Conclusão

To reassemble your device, follow these instructions in reverse order.

Lars Erlandsen

Member since: 17-04-2018

553 reputação

Autoria de 1 guia

And the key worked once plugged in and the battery is reconnected?

Michael Sullivan - Responder

These are great instructions. I had the dreaded ‘steering lock malfunction’ warning message on my 9-3. Bought an ISM off eBay for £35 and had it fitted and working fine in 2 hours. Thanks so much for posting.

Mike - Responder

Adicionar comentário

Visualizar Estatísticas:

Últimas 24 horas: 12

Últimos 7 dias: 73

Últimos 30 dias: 351

Todo: 1,525