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Re: Have you read the codes? Posted by Ari [Email]  (#2847) [Profile/Gallery]
(more from Ari) on Wed, 14 Feb 2024 07:42:31
In Reply to: Re: Have you read the codes?, Woodsmith, Wed, 14 Feb 2024 06:41:54 Members do not see ads below this line. - Help Keep This Site Online - Signup |
Obtain an appropriate cable that goes from the USB port on your laptop to the OBD2 port on your Saab. One such well-proven cable is an OBDLink SX. You can google to find places to purchase. The cable is around $50. The cable might come with software; ignore that, you don't need the software that comes with the cable, you just need the cable itself.
Do a Google search for Trionic Canflasher, download it, and install it on your laptop.
Here's a youtube video that explains this pretty well: https://www.youtube.com/watch?v=q9YmJktrbV8
Follow the configuration steps shown towards the end of that video.
You'll then connect the cable between the laptop and the Saab. Make sure both have a full battery charge, because the process you're going to engage in might take an hour or more, and you don't want either battery failing during the process. Ideally, the laptop is connected to a charger and the car is connected to a battery charger as well.
Fire up CAN Flasher, and turn the car to "ON" (the engine isn't running; just the electrics are powered). In CAN Flasher, click "Read ECU" (or "Read ECM," I can't remember which it says, but it's the same thing.) You will be prompted to come up with a filename. This file will contain the contents of your ECM. Remember where you saved that file so you can find it later.
Reading the ECM might take as much as 40 minutes. The screen on the laptop will show you how things are progressing. Once you see the bootloader has been loaded (one of the first things that happens after you pressed Read ECU), you can turn the key back to off to preserve the car's battery. When the reading is done, the file you just created contains the contents of your ECM.
Hopefully the process will complete. At that point, remove your old ECM and install the replacement. If you have one, you could install the heat spacer.
Again put the key to "ON", and this time hit the button in Trionic CAN Flasher that says "Flash ECU," and select the file containing the info from your original ECU. Again, once the bootloader is uploaded to the ECU, you can turn the car back to OFF to conserve battery. When it asks you something to the effect of, "Do you really want to change the VIN and key?", the answer is "Yes". (Because you are changing the VIN and key in this new ECM to match the old ECM so your keys will work). Another 20-40 minutes goes by. When it's complete, unplug the laptop from the car, turn it off, and set it aside, and the car should start and run.
It sounds more complicated than it is.
It's a good idea to keep the file you created in case you ever need it again; for example, to program a spare ECU, or yet another replacement.
->Posting last edited on Wed, 14 Feb 2024 20:48:44.
, Tue, 13 Feb 2024 22:24:21
, Thu, 15 Feb 2024 11:37:45, Wed, 14 Feb 2024 07:42:31 <-- Viewing This Message, Sat, 24 Feb 2024 12:12:22, Mon, 26 Feb 2024 21:15:26, Sun, 25 Feb 2024 10:18:23, Sun, 18 Feb 2024 21:18:12, Tue, 27 Feb 2024 17:23:57
1, Thu, 29 Feb 2024 22:19:591
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