Ecoboost Performance Forum

General Ecoboost Discussions => Off Topic => Topic started by: Scott4957 on January 30, 2016, 10:38:01 PM

Title: Add a fuse
Post by: Scott4957 on January 30, 2016, 10:38:01 PM
I'm using an "add a fuse" to pull 12v from the fusebox. It needs a bit of room, does anyone know if the 5 amp fuse for the rain sensor is 12v and turns off with the ignition?

Thanks!

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Title: Re: Add a fuse
Post by: SHO Rod on January 30, 2016, 10:59:56 PM
The 5A fuse F45 for the rain sensor module is controlled by a Run/ACC relay inside the Body Control Module (BCM).  So it will only have power then the key is in the Run or ACC positions when the BCM activates the relay.  Considering though that the same power wire to the rain sensor module also goes to the coil of the Wiper Relay in the Battery Junction Box, I suspect the Run/ACC relay is only active when the wipers are powered.

-Rod
Title: Re: Add a fuse
Post by: Scott4957 on January 30, 2016, 11:02:45 PM
Crap. Well, thank you for saving me the time with the multi meter and trying to figure out when it is on. You have to be a Fukin midget to get in there. I know others have used the add a fuse before but I'm not sure which spot they are using.

Thanks,
Scott
Title: Re: Add a fuse
Post by: SHO Rod on January 31, 2016, 11:18:32 AM
What are you looking to power?  How much current do you need, and are you wanting something that is only active with the ignition on?  Are you open to tapping in to an existing wire (versus running a new wire from the add-a-circuit?

-Rod
Title: Re: Add a fuse
Post by: Scott4957 on January 31, 2016, 12:24:41 PM
Radar detector. I already used the 7.5 amp fuse for the passenger detection.

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Title: Re: Add a fuse
Post by: SHO Rod on January 31, 2016, 04:56:51 PM
Is the radar detector going to be installed on the windshield or just sit on top of the dash?  If on the windshield would you be comfortable tapping in to the wiring for the overhead console?  There's some switched power up there....

-Rod
Title: Re: Add a fuse
Post by: Scott4957 on January 31, 2016, 05:10:34 PM
Quote from: SHO Rod on January 31, 2016, 04:56:51 PM
Is the radar detector going to be installed on the windshield or just sit on top of the dash?  If on the windshield would you be comfortable tapping in to the wiring for the overhead console?  There's some switched power up there....

-Rod
It's mirror mount, I will post the details with pics. Believe it or not this was much easier than getting the overhead console apart in the MKS.

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Title: Re: Add a fuse
Post by: ZSHO on February 01, 2016, 11:20:39 AM
I'm not sure if your familiar with this link but it certainly is useful in many aspects,hope it helps any.  Z                                                                     http://www.the12volt.com/installbay/forum_posts.asp?tid=131604 (http://www.the12volt.com/installbay/forum_posts.asp?tid=131604)
Title: Re: Add a fuse
Post by: Scott4957 on February 01, 2016, 12:39:47 PM
Quote from: ZSHO on February 01, 2016, 11:20:39 AM
I'm not sure if your familiar with this link but it certainly is useful in many aspects,hope it helps any.  Z                                                                     http://www.the12volt.com/installbay/forum_posts.asp?tid=131604 (http://www.the12volt.com/installbay/forum_posts.asp?tid=131604)
Awesome, thanks! This MKS is tighter than a.....well anyways its hard to get into anything. This will help with future projects for sure.

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