bzalex wrote:Today, I've found my 12V battery dead again. This is the third time this year. Last time it was about 2-3 months ago. Since then I've been very carefully to watch the voltage reported by LeafSpy every time after stopping the car. But yesterday, before arriving home, I made a short break and I turned off the car in the same time while stopping LeafSpy on my phone. Then, after 5 minutes, I drove home(few streets away) and I didn't start LeafSpy again for such a short trip.
In the morning the 12V battery was dead. I had to use the mechanical key to open the door. The interesting part is, the "Link" LED on the ODB Bluetooth device I have, was blinking continuously at a pretty fast steady rate. My first though was that somebody connected to my ODB device and that was the reason why the battery was drained. But I don't think it is the case, because as far as I remember, you can pair with the ODB only at power on. So from now on I will try to check the "Link" LED to see if it is linked to the battery issue, or it was just generated because the ODB adapter had not enough power to work properly.
taloyd wrote:So how do we explain all of the other upgrades (like mine) that seem to work (at least most of the time)?
Or is this something specific to the 2013 MY?
taloyd wrote:Hey everyone,
Looks like we can at least put the cause of the issue to rest. As Occam would suggest - in my case at least (2013 car getting the 2G --> 3G telematics upgrade) was the cause of the problem. Nissan (the manufacturer, not the dealership) flew over their engineers who designed the telematics from Singapore to my dealer to look at my car and a few others that were experiencing the problem. Within 2 days they assessed that the telematics unit itself was drawing an inappropriate amount of power, could not be fixed, and their options were:
1) replace the 3G unit back with the original 2G unit which would disable Carwings and also solve the parasitic power-draw issue
2) I could manually disconnect the 12V battery every day upon getting home
3) I could pull the fuse at strategic intervals - the sales person serving as an intermediary was a bit dubious about this, which suggests to me that they were very dubious about that. l