Battery drains overnight

Tiny
ROYIRENE
  • MEMBER
  • 2011 VAUXHALL MERIVA
  • 1.7L
  • 2WD
  • MANUAL
  • 84,000 MILES
My battery drains overnight. I have noticed error code 60 which is windows open slightly. Would this drain the battery overnight with ignition switched off?
Saturday, September 18th, 2021 AT 1:04 AM

1 Reply

Tiny
KASEKENNY
  • MECHANIC
  • 18,907 POSTS
It is possible but the unfortunate thing is we don't have a manual on this vehicle as it is not offered here in the USA so we can't look up the detail on this.

However, this issue is pretty common and is diagnosed the same regardless of the vehicle.

So here are a couple guides that will help with this:

https://www.2carpros.com/articles/car-battery-dead-overnight

https://youtu.be/z5F7WpgjaRs

Once we run through this we can go to the next step and that is checking the draw on the battery.

You do this by disconnecting your negative battery cable and connecting your meter inline. So you connect the red lead of your meter to the cable and then the black lead to the negative battery post.

Then set your meter to amps and open all the doors and trip the door switches so that the vehicle things the doors are closed.

You will need to wait about 10 minutes to see what the actual draw is as a lot of the electrical system will have to go dormant and shut off.

Then we need to disconnect fuses until we find the fuse that causes the draw to drop to around 35 milliamps or lower.

Please let us know if you have questions on this. Thanks
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Saturday, September 18th, 2021 AT 9:42 AM

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