andrehj

No. The S2 doesn't have that feature.

Just to be sure that your battery charge isn't consumed by a consumer: If you are handy with a multimeter, you can also measure the current consumption when the car is parked. After a few minutes this should be around 10 mA. I measured mine a few months ago (had a dead battery as well) and the current consumption was only 6 mA, which was excellent. My battery was very dead, after a few days the voltage had dropped to around 10.5V. Since both the original and the replacement (Varta E44) batteries only lasted about 4.5 years, I have now changed to an Exide EA770 battery. Hope that one lasts longer.

Most likely your battery is dead. With ignition off the reading should be around 12.5 V. 11.4V is way to low.

Why do you want to decipher these codes? Simply fix the broken wire loom, and reset the fault codes. 99% chance that they will stay away.

I may have a similar issue (window mechanism doesn't sound too healthy). Can you post that info in this topic as well?