Can you keep the 12V outlets on when the car is off?

[SongjinDK]

How much power could I get from the trailer plug on a 2018 Model X75D?

I found this in the the 2017 Model X Service Manual: F131 MICRO2 - 15A IGN - Trailer Connector
I assume the trailer plug has a 15A fuse.

 

[SongjinDK]

Can you post a copy of the diagram... I thought the jump posts were eliminated after 2016

"18" connects the post to 12V battery positive terminal (they call this "B+" which connects to all fuses". "17" connects to the DCDC converter and the terminal that connects to "B+" through F1 (MEGA-250A fuse). Hope this helps.

 

[mattack4000]

I found this in the the 2017 Model X Service Manual: F131 MICRO2 - 15A IGN - Trailer Connector
I assume the trailer plug has a 15A fuse.

Most DC to AC converter with the cig lighter plug can only do 100W anyway...

 

[FlatSix911]

"18" connects the post to 12V battery positive terminal (they call this "B+" which connects to all fuses". "17" connects to the DCDC converter and the terminal that connects to "B+" through F1 (MEGA-250A fuse). Hope this helps.

Got it, thanks... the jumpost cable 18 on the battery fuse block. Be careful to use an inline fuse when running an inverter in this area.

 

[ytwytw]

For old model x
Is it still possible to get always on 12V in the trunk? Is the relay trick or something else?

 

[Christine600]

I had this on my last road trip. I belive it was caused by Sentry Mode beeing on. Could have been changes to Keep Climate On too. I did not research it further - just glad the 12V was live.

 

[KevinY]

So I got tired of BS work arounds for constant 12v. I ran a 14ga wire from the foot well fuse block to the rear of the car. I installed an additional 12v power outlet with USB sockets.

 

[FlatSix911]

So I got tired of BS workarounds for constant 12v. I ran a 14ga wire from the footwell fuse block to the rear of the car. I installed an additional 12v power outlet with USB sockets.

Well done... what is the fuse rating?

 

[KevinY]

I installed a 10 amp inline fuse for 138 watts. This has been perfect for my portable refrigerator which uses 40 watts.

 

[mattack4000]

Isn’t it really hard to get to the fuse box on the x?

 

[ShawnA]

Hi Mattack4000,

I would say not really hard, just a pain in the ... neck.
I got into the one on my left hand drive X down by my right ankle when I was looking for trailer brake
problems.
With some fusions in my neck and being underneath the steering wheel and crowded by the seat
it can be tight down there...

Shawn

 

[Nuclear Fusion]

Yes, the 12v sockets & USB ports remain powered when the car is locked. You may need Sentry Mode to be activated

 

[ecarfan]

Yes, the 12v sockets & USB ports remain powered when the car is locked. You may need Sentry Mode to be activated

In my experience they do not remain powered in my 2017 X with Sentry Mode off. I don’t use Sentry Mode at home because my car is parked a few feet from my front door and I regularly walk past it and don’t want it alerting.

 

[Nuclear Fusion]

In my experience they do not remain powered in my 2017 X with Sentry Mode off. I don’t use Sentry Mode at home because my car is parked a few feet from my front door and I regularly walk past it and don’t want it alerting.

Ahh, that confirms you need sentry mode on