High battery draw down?

Hello,

The fuse position 53 is the Cigarette Lighter - Accessory Power Outlet fuse, and that same circuit also feeds the DLC/OBD connector’s power. So is there anything plugged in to those ports?

Ken

No. Fuse 53 is not where I’m at, if you look at the fuse chart and you see fuse 41 and then you skip a place and then the fuse 52, in the place that the chart shows a skip I have a fuse in the space that causes the excessive draw, removing that fuse causes my power port to stop working and the data stream also stops in the OBD 2 port. Truck runs fine. So why is that fuse there and why the excessive power draw and why the loss of data when all the ECM fuses are good. Nothing external is added to this truck.

They do not show a fuse between 41 and 52. So someone must have installed something in the blank slot? Can you upload an image of it so I can see, and you say nothing after market has been installed? Is this truck a hybrid? The power for the data port and the power port comes from fuse 53.

Here are the pics

Here is what I’ve got

So you are pointing to an empty slot, no fuse goes in there and there is no metal terminals in that slot as well correct?

There are, that is where the draw is located. Pulled fuse the draw goes away.

There are metal terminal connectors in the empty slot, yes or no?

Yes one got all the time the other has excessive draw on it.

Can you please upload an image of the fuse position straight down where the mystery fuse is located?

Tried too. Can’t really see the contacts even in direct sunlight, but you can just barely see the little tiny silver rings in each slot.

Well the excessive draw just stopped, went from 0.53 to 0.17 then to 00., that took about an hour for it to get there and it didn’t come back so far, so I put it back together and will leave the testing meter on it all night and recheck in the AM. It’s been up for days, it totally killed the battery last week so I had to recharge a new battery, I have had a trickle charger on it this week just to stay ahead of the draw and now nothing. I’ll let you know it is returns.

It may not have anything to do with this fuse, I don't see the terminals inside the fuse panel. Also, the battery draw you were seeing could be the computer system going into sleep mode, here is a guide that explains it.

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

It could be the battery is no good.

Did not explain why the draw would continue for three days then go to sleep. If the trickle charger was not connected the vehicles battery would have been dead. I’m going to be watching this closely.

It sounds like the battery is going bad to me.

Nope, brand new battery. So here is what I have done, I split out the circuit from the fuse box, installed an inline fuse and connected it to the RV battery on the drivers side of the truck. So that way if it acts up again it will only affect the RV battery and not the main battery. I plugged in a voltmeter on the RV battery so u can watch the voltage on it. So when it sits like it does I can hookup a maintenance charger for that battery just in case. I know not the right way to do it but with it being intermittent I think it’s was the best way to isolate that circuit and fed with a separate power supply.

Sounds good, did you go over the guide to see if any of the things mentioned are causing the issue.?

Only one draw was found. Everything else checked 0.01. Did a decent road test yesterday and it ran just fine. Let it sit overnight and of course the draw has not returned even in the new power system. So I’m going to go with it for now.

Glad you could get it fixed, thanks for letting us know. Please use 2CarPros anytime we are here to help.