Wire Harness

Trailer Relay Isolation Packages

Diagram below.

Our trailer relay isolation packages easily and properly connect and isolate your trailers electrical load from the motorcycles factory wiring, fuses, relays, computers and electronics.
The act of simply tapping extra lights into your bike can cause damage; blown fuses, burn out relays or worse.
These units have Omron micro-relays in an epoxy potted housing for weather resistance.
Main power and ground come from the battery.
In order to make a complete harness kit, you must order the 30-PO76660 Relay Package and one sub-harness listed below...

**Trailer Relay Isolation Packages**
COST	Item No.	Product Discription
$105.00	30-PO7660	Isolation Package... Must Be Ordered With Items Below
$145.00	H-D 5 wire kit	Complete Trailer Wire Kit for 1997 + Harley & a trailer with 5 wires
$155.00	H-D 4 wire kit	Complete Trailer Wire Kit for 1997 + Harley & a trailer with 4 wires
$120.00	Universal 5-wire kit	Complete Trailer Wire Harness Kit for all other bikes with 5 wire trailer
$130.00	Universal 4-wire kit	Complete Trailer Wire Harness Kit for all other bikes with 4-wire trailer.
$180.00	1997+ H-D 4 or 5 wire kit	Removable converter for Harley either 4 or 5 wire trailer. Good if you have both a 4 and 5 wire trailer.
$165.00	Universal 4 or 5 wire kit	Removeable converter for all other bikes. Good if you have both 4 and 5 wire trailer.
$40.00	30-PO7664	4 Wire Converter. Requires trailer Relay Isolation Package and a sub-harness
$115.00	30-PO7665	Isolator/Converter Combo for trailers with 4-wire trailers
$45.00	30-PO7661	1997+ Harley Trailer Relay Sub-harness. Requires trailer relay isolation package for use.
$20.00	30-PO7663	Universal Trailer Relay Sub-harness. Requires trailer relay isolation package for use.
$49.00	H-D P&P	Harley adapter. Unplug rear lights under seat connect the H-D P&P in line. Has 5 wires coming out with in-line butt splice ready for 5-wire trailer supplied trailer plug.

NOTES:

Complete wiring harness kits contain everything you should need.
On 5-wire kits you will need to supply the plug that matches your trailer.
On 4-wire kits there is a flat 4 connector already attached.
Go to Wiring Relay Isolater menu button on right side for instructions. ------->>

Updated: 02-27-2013

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Wiring Relay Isolator

Diagrams and Instructions

Trailer Relay Isolation Package Installation Instructions

Place the motorcycle on solid level ground.
Disconnect the ground terminal at the battery.

NOTE: In order to use the Trailer Relay Isolation Package you must use a sub harness.

Sub Harness Installation

Attach the Sub harness to the motorcycle – If you purchased the Harley Sub Harness, remove your seat and find the plug that matches the plug on your sub harness unplug it and plug the sub harness in between the plugs on your motorcycle...

Trailer Relay Isolation Package Installation Instructions

Place the motorcycle on solid level ground.
Disconnect the ground terminal at the battery.

NOTE: In order to use the Trailer Relay Isolation Package you must use a sub harness.

Sub Harness Installation

If you purchased the Universal Sub harness you will need to locate the wires that run to your rear lights and splice into them using the 4 T-taps and connectors. Connect the universal sub harness as follows: Green running lights Brown – left turn Yellow – right turn Blue –brake lights

5 Wire Trailer Installations

Plug the Isolator into the sub harness and attach a plug that matches the plug on your trailer to the outputs on the isolator.

The outputs on the trailer relay isolator are as follows: Green – running lights Brown – left turn Yellow – right turn Blue – brake light Black – ground

Attach the fused lead wire to the red wire from the isolator using the supplied butt connector and a ring connector to the other end of the fuse lead and the black ground wire. Attach the ring connector on the red wire to the positive battery terminal and the ring connector on the black wire to the ground.

Attach your trailer. Reconnect the battery. Install the main 30 amp fuse. Test lights on the trailer and reassemble the motorcycle. Check for sufficient slack on the wiring so when the motorcycle and trailer turn the wiring will not be disconnected.

4 Wire Trailer Installations

If your trailer has combined turn/brake lights or a 4 pin harness you will need to use the Trailer Converter for 4 wire Trailers EC07664. The converter will plug in between the sub harness and the isolator.

There is only one direction it will install. Use the supplied ring terminal and ground the black wire Because only 3 of the 4 relays will be used, you may use the additional relay to power any accessory of your choice up to 7.5 amps (maximum draw). To do this, connect the following: White wire – connect to switched + to turn the relay on. Blue wire from the trailer relay output to your accessory.

Plug the Isolator into the converter and attach a plug that matches the plug on your trailer to the outputs on the isolator.

The outputs on the trailer relay isolator are as follows: Green – running lights Brown – left turn and brake Yellow – right turn and brake Blue – optional accessory output Black – ground

NOTE:

A person needs to know his/her limitations. If you need to ask any questions on this easy installation, you are in over your head and should take the bike to a professional. The small price you pay would more than likely save you grief later...