The simple answer is to use an ohm meter, or continuity / test light and battery. You'll need to disconnect the car's battery. Then unplug the "B" connector from the CEM, carefully poke small wire or test probe into the "B" connector pins, and the other meter probe to each of the wires. Hopefully ...

I'm just learning about this myself. I believe you need the key switch (ignition switch) to go with the key. I'm not sure if the CEM or ECM know about the key codes.

Several people selling a key and accompanying switch on ebay, for example.

VDash supposedly can cause the car to accept another key ...

My $0.02- I've had pretty good luck substituting O2 sensors. In fact I did so on my '06 S40 2 years ago and it seems fine, runs well, no ECM problems or error codes, exhaust is pretty clean smelling for 186K miles. But I admit I did it not knowing about the 2.4 ohm heater and PWM control.

I assume ...

I've written to emaild5t5.com and never heard back. Anyone have any ideas on how to get a few questions answered?

I've installed Vdash. It runs, but I'm very confused about what personal information they're asking for, what they will do with it, what "VAT" means (I'm in the US and we don't ...

Sorry for delay, life including a new job has gotten in the way. I'm very impressed. Any chance you share / sell your software?

I don't know how to get the "tune" in and out of the ECU without opening it and soldering, which I can do, but it seems inelegant.

I've used a few tuning softwares ...

Sorry if this is a dumb question, but what software are you using to interface with the ECU, edit, re-flash?

I've written to d5t5 (dot) com and never heard back. Anyone have any ideas on how to get a few questions answered?

I've installed Vdash. It runs, but I'm very confused about what personal information they're asking for, what they will do with it, what "VAT" means (I'm in the US and we don't really ...

Firstly thank you for that link and information about the CFE. I'll be looking into that some more. It might be helpful, I'm not sure. I have a CANBUS <-> USB interface adapter and cable for the PC. I'm still learning about software. In fact I came here to post a question.

Re. software upgrade: I ...

I'm with you on wanting warmer weather. We've had some really nice days. I'm just a little south of you. That new radio sound symptom is very troubling. As an engineer I'm very unhappy with CAN bus. It's not fault tolerant- has no business being in a car. No clue what the thinking is. Anyway, yeah ...

I meant to add: disconnect the battery then be sure to check the bolt-down fuses. The bolts / screws / fuse contact points can develop a very thin layer of corrosion under them. Corrosion is insulator. I use many methods of cleaning the contact surfaces, then a light film of silicone or just some ...