Nemo auxiliary battery alarm issue

Hi, I'm having a strange issue with my 2014 Citroen Nemo gasoline. It has about 85k km on the clock. The additional battery alarm system seems to be defective. I'm getting an error stored in the error memory and the alarm system itself isn't functioning at all. Could it be just a dead battery causing this?

4 comment(s)

I had a similar issue with my Nemo. It sounds like your auxiliary battery might be the culprit. These small batteries often fail due to age, causing all sorts of weird electrical gremlins.

Interesting. So, you think a discharged battery could really knock out the whole alarm system like that? Is there a way to test it or am I better off just replacing the battery?

Yes, in my case it was the auxiliary battery. It might be a good idea to get it checked by a workshop, you don't want to make things worse. This should be a pretty standard job.

Thanks for the advice! I took it to the shop, and you were spot on. The auxiliary battery was indeed discharged due to ageing. Replacement, error memory cleared, and all is well. Cost me 330€, but at least it's sorted.

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