Fixing problems one
Join Date: Jun 2016
County: Bosnia & Herzegovina
Changing battery - don't wanna lose stereo and immobilizer code
I need to change the battery because it's been giving me problems for the past few months - taking a lot to start up, shows up immobilizer if you try igniting with the lights on etc, and I'm afraid to do it myself or have a mechanic do it who doesn't know about the immobilizer code. I read somewhere on this forum before that if you disconnect the battery, it will reset the ECU and you'll maybe need the code to start it up again. I don't have this code. I didn't receive a code card from the guy I purchased the 147 from, and the dealership he got it from didn't have it either. It's a bit too expensive to go to Alfa and get a new code card from them. I also found a thread saying to disconnect the negative first and connect it the last, and that's all that matters?