Truck Charging Wire location inside OTT

[dewdev]

For my 2018 Elite II, I would like to find the charge wire  inside the Ollie to disconnect it as part of a Lithium battery upgrade, instead of doing it at the 7 pin pigtail that plugs into the truck.

Is the wire accessible inside the Ollie? A picture would be helpful.

Thanks

Edited Sunday at 05:24 PM by dewdev

[Ray Kimsey]

I have a 2020 and here is where it is located. It is the wire on the right (labeled in picture with notebook paper and tape). It is on the driver side. Picture is looking forward through the hatch underneath bed next to cabinet.  I disconnected and taped over the end. In the first picture the charge wire is attached in the second, I have disconnected, covered/sealed and stored next to solar shutoff.

 

Edited Sunday at 06:13 PM by Ray Kimsey
typo

[jd1923]

25 minutes ago, dewdev said:

Is the wire accessible inside the Ollie? A picture would be helpful.

Should be. The trick is finding it since every old Oliver seems to be somewhat different. First thing I suggest is to text you test for voltage at your 7-blade connector to see that it is powered and which blade connects to the Black charge wire. Later after disconnecting the wire, you want to see that the same blade is no longer powered. This is the only true means to know you got the correct wire disconnected.

Some have reported seeing the cable split under the bathroom vanity, so perhaps you can see where the black wire branches from there. I got lucky to find mine at the +bus under the streetside bed. Notice in the picture, the black wire at the left side of the bus where I have the screw loosened.

I removed all the wiring to this bus, shortened the 3 fused + connections to the stabilizer jacks, added a more substantial + bus under the rear dinette seat for easy access. I was able to sort out all the wiring, no extra cables to the batteries, etc. In doing this, I've learned what almost every wire is for in the basement areas of Hull #113! 🤣 

[jd1923]

10 minutes ago, Ray Kimsey said:

I have a 2020 and here is were it is located.

Yes, the wiring is VERY different from 2016 to 2020 and @dewdev's is a 2018, likely to be closer to our older hull, but who knows!

Edited Sunday at 06:11 PM by jd1923

[dewdev]

1 hour ago, jd1923 said:

Should be. The trick is finding it since every old Oliver seems to be somewhat different. First thing I suggest is to text you test for voltage at your 7-blade connector to see that it is powered and which blade connects to the Black charge wire. Later after disconnecting the wire, you want to see that the same blade is no longer powered. This is the only true means to know you got the correct wire disconnected.

Some have reported seeing the cable split under the bathroom vanity, so perhaps you can see where the black wire branches from there. I got lucky to find mine at the +bus under the streetside bed. Notice in the picture, the black wire at the left side of the bus where I have the screw loosened.

I removed all the wiring to this bus, shortened the 3 fused + connections to the stabilizer jacks, added a more substantial + bus under the rear dinette seat for easy access. I was able to sort out all the wiring, no extra cables to the batteries, etc. In doing this, I've learned what almost every wire is for in the basement areas of Hull #113! 🤣 

This is a copy of my buss, which is different than yours.

JD, any other ideas would be appreciated.

Tomorrow I will check with OTT.

 

Edited Sunday at 07:27 PM by dewdev

[routlaw]

Amazing how different each Oliver is from year to year. On my 2015 #70 it doesn't even look remotely like any of these pics. 

[jd1923]

3 hours ago, dewdev said:

This is a copy of my buss, which is different than yours.

JD, any other ideas would be appreciated.

Actually they look a lot alike except yours only has the 3 stabilizer jack wires.

Did you test for power at the 7-blade adapter? You got to get a yes/no answer to this before doing anything else.

You have a fuse all the way to the right in your picture. It looks just like the one @Ray Kimsey pointed to as his Black Charge Wire. It could be yours too. You can see how your system a 2018 is somewhere between mine a 2016 and Ray's 2020. Our Oliver has none of those two-post fuses at all.

[jd1923]

2 minutes ago, routlaw said:

Amazing how different each Oliver is from year to year. On my 2015 #70 it doesn't even look remotely like any of these pics. 

That's OTT for ya! I would think yours would look closer to mine since our 2016 was actually built fall of 2015 when you check the label dates on all components. But there is also some distance between #70 and #113.

[Galway Girl]

For our 2019 here's where it connects under the street side bed (hatch nearer the pantry)

[dewdev]

@Galway Girl

Mu 2018 Ollie is slightly different than yours.

In the picture below the red wire has a 1 amp fuse in line. Wht is that for?

Sorry the picture come in upside down when coping to the foruml

[routlaw]

@dewdev no idea what the fuse is for but allow me to add the following. On my wiring at the trailer plug the hot charge wire is black and assuming yours is the same (worth checking out) why would they change from black to red? Perhaps this is not your charging wire from TV. Also jd123 makes a good point in an earlier other thread, disconnecting at only one end still leaves the wire potentially a hot wire. IOW's disconnecting at both ends might be a better scenario. Now if I could only find my own charge wire that would be great. 

I still think the best method is to eliminate the charge at the source, that being the fuses (assuming they are there) pulled on the tow vehicle. Unfortunately for my new truck this part is also a mystery that even Ford mechanics don't seem to be privy to.