Saab 9-3 Installation Instructions Manual - page 2
COREY
the circuit board from the bottom and are soldered to the top. Be careful that they don’t short
together as there are small traces that come close to them, and also keep them away from the
switch contacts. I used 24AWG wire. Once that is done cut a notch or drill a hole in the ISM
plastic cover to fit the wires through when snapping the ISM back together. Mine came out the
front of the ISM. (If installed in the car, the side of the ISM that faces the front of the car)
Next, construct the circuit that my schematic depicts. All of the parts are available at Radio
Shack. The RFID coil can be made from any coated wire. 28AWG transformer wire will work
well. I used 28AWG aluminum wire that I had lying around. 100 turns will work fine. Make sure
that the tip of your spare key will fit inside the coil. Don’t make it too big either; you want the
tip of the key to just fit inside. The spare key will be taped or tie‐wrapped inside the coil and the
coil will be hidden up inside the dash so no one can easily get to it.
The RS (Remote Starter) doesn’t need a lot of current because this car uses a low current digital
ignition switch. So I hooked the RS’s power wires to a spare fuse in the IPEC 22. (fuse panel at
left side on the dash) I removed the RS main 30 amp fuses and replaced them with 10 amp
ones. The RS should also include a keyless entry feature. Without this you won’t be able to
unlock the door when the RS is active. This is because the CIM ignores all keyless entry requests
from the factory transmitter when the ignition is on. Unfortunately because the entire car runs
on a bus system, you will need to feed wires into the driver door to access the lock/unlock and
trunk release wires; unless of course you can find an aftermarket I‐BUS interface for a Saab 9‐3.
Good Luck! You can also purchase a RS with keyless entry and an alarm if you want even more
security. I used the Avital 4103 which has keyless entry. You can get one on EBAY for about $50.
Use the WIS to find the wires and connectors for the parking lights, door locks, trunk release,
brake light switch, hood switch, (if you have a factory alarm) etc. Follow the instructions that
came with the RS to hook up these wires. You will only use the IGN #1, IGN #2, and START
outputs on the RS. You will not need the ACC output. Connect these wires to your newly
created circuit board. Also connect the wires you previously soldered to the ISM circuit board to
your new circuit board. I highly suggest using plug/jack connectors so things can be removed
easily for testing/troubleshooting.
With any luck when you hook everything up it will work. If it doesn’t work, you’ll need basic
electronic troubleshooting skills to find the problem. I have it working on a 2008 Saab 9‐3 Turbo
X with the B284R 2.8T V6 engine with an automatic transmission. I didn’t fake the module wake
up (prepare to start) signal as the B284R engine/ECM will start just fine without it. Other
engines/ECMs may need this signal. It is used primarily to prime the fuel pump. On this engine
the fuel rail remains under pressure while the engine is off and the pump can almost instantly
supply the required pressure to the rail anyhow. If your engine/ECM needs this signal, another
wire will be required.