GL1500 trailer wiring


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Tiddiot
Posts: 4
Joined: Thu Aug 24, 2017 1:07 pm
Location: Winnipeg, MB, Canada
Motorcycle: 1995 GL1500 Aspencade
2008 Honda Shadow 750 (daily driver)
1980 Honda CM400T (will restore - eventually)

GL1500 trailer wiring

Post by Tiddiot » Wed Aug 30, 2017 2:25 pm



Good Afternoon

I posted this in the general area the other day and realized I should move it.
Online forums are not my forte. Sorry

I have a new to me 1995 GL1500 Aspencade that I would like to wire up for a trailer.
Previous owner had a harness on it, but the more I explore the bike, the more I don't trust it.
My plan is to remove the old harness and use the Cyclemax gl1500_iso_trailer_wiring_harness.
It seems pretty straight forward as a plug and play sort system.

Having lurked on this site for a few months before registering, I understand that I should also use a 5 to 4 pin trailer harness converter

My question is - After hooking up the trailer wiring harness, where/how do I connect 5-4 trailer harness converter?
I believe that it is attached to the "loose" wires after hooking up the trailer harness.
Am I right?

Any and all assistance is appreciated.

Thank you,
Tiddiot



User avatar
WingAdmin
Site Admin
Posts: 18480
Joined: Fri Oct 03, 2008 4:16 pm
Location: Strongsville, OH
Motorcycle: 2000 GL1500 SE
1982 GL1100A Aspencade (sold)
1989 PC800 (wife's!)
1998 XV250 Virago (sold)
2007 Aspen Sentry Trailer

Re: GL1500 trailer wiring

Post by WingAdmin » Wed Aug 30, 2017 2:35 pm

That's right. Or, you could do what I did, and just leave the five pin harness in place.

Actually, In the end, I ended up ripping the entire tired old wiring harness out of my trailer and redoing it from scratch. I installed a six-pin harness. That way I have:

- Ground
- Brake
- Running light
- Left turn
- Right turn
- Brakes

I haven't put the brakes on the trailer yet, but that's planned for this winter.

Tiddiot
Posts: 4
Joined: Thu Aug 24, 2017 1:07 pm
Location: Winnipeg, MB, Canada
Motorcycle: 1995 GL1500 Aspencade
2008 Honda Shadow 750 (daily driver)
1980 Honda CM400T (will restore - eventually)

Re: GL1500 trailer wiring

Post by Tiddiot » Wed Aug 30, 2017 2:44 pm

WingAdmin
Thanks for the prompt reply.
I cannot tell you how much I enjoy this site/forum.
The work that you have put into this site and the How-To articles is greatly appreciated.
Keeps me semi-out-of-mischief and gives me confidence to tackle maintenance items
Thanks again
Tiddiot

User avatar
DenverWinger
Posts: 176
Joined: Thu Jun 23, 2011 2:20 pm
Location: Denver, CO
Motorcycle: 1980 GL-1100 STD Vetter (2005-)
1993 GL-1500 Aspencade (2017-)
1983 Trav-Lite Camper (2010-)
Past rides
1972 CL-350 (1980-1988) sold
1978 Suzuki GS-550 (1985-2005) sold
1977 GL-1000 (2002-2006) sold

Re: GL1500 trailer wiring

Post by DenverWinger » Thu Aug 31, 2017 9:45 am

On my 1500 I have two 4-Flat connectors on the Cyclemax isolator so I don't need to use a 5-to-4 converter. I tried a converter, maybe it was not very good quality, and got rid of it. The problem was in combining the Brake and Turn power, the result was low voltage to the brake/turn filament on the 1157 bulb and you could hardly see it over the running light filament.

So instead I added two Amber fixtures to the back of the trailer with 1156 bulbs for turn signals.

First 4-Flat:
Ground
Running lights
L-Stop (Red 1157)
R-Stop (Red 1157)

If I'm pulling the trailer with the car or Jeep only the first 4-flat is used.

Second 4-Flat:
Ground
L-Turn (goes to amber 1156)
R-Turn (goes to amber 1156)
+12V (goes direct to bike battery thru 10 amp fuse)

The +12v is used for charging my deep-cycle "camping" battery while driving down the road. There's enough voltage drop in the harness that when starting the bike doesn't draw enough from the trailer battery to blow the fuse.
They say 98% of all Hardleys ever made are still on the road..... The other 2% made it home. :lol:
(I stole this from somebody on another GW site...) :roll:

Tiddiot
Posts: 4
Joined: Thu Aug 24, 2017 1:07 pm
Location: Winnipeg, MB, Canada
Motorcycle: 1995 GL1500 Aspencade
2008 Honda Shadow 750 (daily driver)
1980 Honda CM400T (will restore - eventually)

Re: GL1500 trailer wiring

Post by Tiddiot » Thu Aug 31, 2017 11:35 am

Thanks DenverWinger
I appreciate your help
Tiddiot



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