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Old

Mar 10, 2024 | 03:08 PM

#1

EXTREME_SD

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5th Wheeling

Joined: Aug 2021

Posts: 27

Likes: 5

What is this?

It's on the negative side of the passenger battery, between the post and the actual wire.

Im hooking up the ground wire for my Amp and just wandering if it matters if I put my ground wire on either side of that?

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Old

Mar 10, 2024 | 03:16 PM

#2

honda250xtitan

Cargo Master

Joined: Jul 2017

Posts: 2,297

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gas truck? looks like the wire you would unplug if you wanna disable the autostop/start.

but yea you can undo that 8mm and throw a ring terminal on it and put the nut back on.

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Old

Mar 10, 2024 | 03:22 PM

#3

rydaddy

Mountain Pass

Joined: Apr 2023

Posts: 105

Likes: 37

I believe it is a sensor to measure current draw on the battery.

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Old

Mar 10, 2024 | 03:36 PM

#4

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5th Wheeling

Joined: Aug 2021

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Quote:

Originally Posted by honda250xtitan

gas truck? looks like the wire you would unplug if you wanna disable the autostop/start.

but yea you can undo that 8mm and throw a ring terminal on it and put the nut back on.

After more research it looks like it's a BMS Battery Monitoring System, still researching it.

Quote:

Originally Posted by rydaddy

I believe it is a sensor to measure current draw on the battery.

So I wonder if I would ground Amp before or after that device?

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Old

Mar 10, 2024 | 04:03 PM

#5

rydaddy

Mountain Pass

Joined: Apr 2023

Posts: 105

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I would put it right on top so that it would measure that load as well, or just ground the amp to the chassis.

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Old

Mar 10, 2024 | 04:23 PM

#6

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5th Wheeling

Joined: Aug 2021

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Quote:

Originally Posted by rydaddy

I would put it right on top so that it would measure that load as well, or just ground the amp to the chassis.

Found a pretty good video on a f150 forum. Looks like I'll put it after the sensor just like you suggested.

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Old

Mar 10, 2024 | 08:32 PM

#7

2004Limited

Tuned

Joined: Aug 2012

Posts: 261

Likes: 67

From: SW Cook County, Illinois

Quote:

Originally Posted by rydaddy

I would put it right on top so that it would measure that load as well, or just ground the amp to the chassis.

LOL, forty years ago, before the internet had videos, we probably would just ground it to the frame!

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