Where does that cable lead to? Need wiring diagram.

[Wiley1]

2017 Freedom Elite 23H

I'm trying to troubleshoot an issue with my Li-BIM 225 and I need to see a wiring diagram.
I have the Electrical Layout, Left-side Harness, and Electrical System Guide, but I feel like I'm missing something.
Where can I go to download more documents?

Specifically, my chassis battery is dead. Voltage on both sides of the BIM are measuring 2.4V, making me think the BIM relay is closed. The chassis battery also measures 2.4V. No mystery there. But, the house battery has 13.4 volts on. It seems that the cable from the BIM to the house battery bank isn't a direct run.
What could be in between those two points?

 

[16ACE27]

It seems that the cable from the BIM to the house battery bank isn't a direct run.
What could be in between those two points?

There should be nothing but a junction point. The 100 amp DC breaker may be upstream of that. Can you start the generator?

You're not going to find an electrical diagram that will help you much; tracing the cable is the best way to figure it out. You could disconnect the house battery cable from the BIM and then measure the voltage on it. If any, then you probably have a crappy connection.

Or if house batteries have been removed lately maybe a cable was left off.

Also, the BIM is sometimes wired backwards by Thor.

2,4 VDC is a waaaaay dead battery. Try charging it with an external charger to see if it's any good.

 

[Wiley1]

The battery was new a few months ago. If I manage to destroy it, Walmart may be giving me a new one.
I installed the new BIM at the same time. I know the cables aren't reversed because I can see the one leading to the chassis battery.

I guess I'll be crawling around under there tomorrow.
I think you may be right about a cable being left off.

 

[16ACE27]

The battery was new a few months ago. If I manage to destroy it, Walmart may be giving me a new one.
I installed the new BIM at the same time. I know the cables aren't reversed because I can see the one leading to the chassis battery.

I guess I'll be crawling around under there tomorrow.
I think you may be right about a cable being left off.

I didn't say the cables were reversed - I said wired backwards: as in the Sig and Ign leads.

 

[PS89]

I didn't say the cables were reversed - I said wired backwards: as in the Sig and Ign leads.

I've not seen that "backwardization" mentioned before. I've only seen the BATT-A and BATT-B being wired "backwards".

Voltage on both sides of the BIM are measuring 2.4V, making me think the BIM relay is closed.

Yep.

But, the house battery has 13.4 volts on. It seems that the cable from the BIM to the house battery bank isn't a direct run.

It *should* go to a "junction" point as Ace mentioned. Sounds like that connection is open.

 

[16ACE27]

I've not seen that "backwardization" mentioned before. I've only seen the BATT-A and BATT-B being wired "backwards".

Judge as well as others have documented it here on this Forum many times. Judge even has a tutorial on how to verify if your BIM is wired correctly.

 

[PS89]

ALL of the posts I found from Judge64 from 4-5 years ago related to the BATT-A and BATT-B cables being reversed, not the SIG and IGN wires.....

Example: Magnitude Four Battery Upgrade

or here: Battery Isolation Manager 2017 Miramar

I found none that related to the SIG or IGN wires actually having been reversed. He did reference them in relation to their locations adjacent to the big terminals.

 

[ducksface]

My 160 charged my chassis when on shore power but My 225 installation wouldn't charge my chassis battery on shore power(I didn't check gen or inverter). About a month after the 225 installation it started charging on shore power.
Now the 225 does Keep the chassis charged.
No explanation
Nothing loose
Nothing swapped
I didn't touch it once installed...it just started charging where it didnt before.
This could have started working when I went on a trip in it.
Maybe the alternator needed initiated.

My rv went from tapping the solenoid (very loud in the garage when parked) every 15minutes or so with the 160 to a much quieter click I've heard maybe 3 times in 6 months with the li-bim 225.

I offer this as no correlation to anyone's malady.
Just observations of my swap.

 

[16ACE27]

ALL of the posts I found from Judge64 from 4-5 years ago related to the BATT-A and BATT-B cables being reversed, not the SIG and IGN wires.....

Yep, you're right. I was just remembering the SIG amd IGN wires had to be on the same side as the appropriate battery.

 

[Wiley1]

Yep, you're right. I was just remembering the SIG amd IGN wires had to be on the same side as the appropriate battery.

Can you explain what that means in more detail?
One of the things I like about the LI-BIM-225 is that it can be powered by either battery when the Emergency Start switch is wired to go to ground.

 

[PS89]

Since you have the LiBIM225, just follow its instructions. The BIM160's connections are no longer relevant for you.

 

[16ACE27]

Can you explain what that means in more detail?
One of the things I like about the LI-BIM-225 is that it can be powered by either battery when the Emergency Start switch is wired to go to ground.

It's exactly the same as the 160. The chassis battery has to be connected to the same side as the IGN wire. There are still two options for the SIG wire.

 

[ducksface]

It's exactly the same as the 160.

to the same side as the IGN wire.

View attachment 1321487

It can't be clearer then the above.

However it's wired to your 160, wire it that way to your 225.
Trouble shoot all of your conjecture and worry after.
Combining both things leads to confusion.
There's a recent five page thread that confirms this confusion.

 

[ducksface]

Since you have the LiBIM225, just follow its instructions. The BIM160's connections are no longer relevant for you.

The 160 connections are exactly relevant because 95% of the people who consider this swap couldn't track a wire any more than they could breath underwater.

Why would anyone disregard unmarked wires attached to marked posts as a guide to what the unmarked wires might be?

We tell people to take lots of pictures before rewiring.
It's as a reference they can't goof up.

 

[Wiley1]

Yep. The cable from the BIM was tucked away and not connected at the house battery bank. Doh!!

 

[16ACE27]