2014 and newer Indian Chief Classic, Chief Vintage, Chieftain, Dark Horse, and Roadmaster models use a four-wire CAN-bus low-voltage computer controlled wiring system. Therefore, when wiring a trailer to these models, it is required to install 51-9238 CAN-bus module.
The steps below outline the components needed to wire a trailer hitch to the 2014-newer Indian models:
1.) The first component you will need is the 51-9237 sub-harness.
2.) Next, you will need the 51-9238 to convert the CAN-bus signal.
3.) If your trailer uses a five-wire system, move on to step 4. If your trailer uses a four-wire system, you will need an 51-8420 five-to-four wire converter.
4.) All models require the use of our 51-8190 Trailer Wiring Isolator
(1) Converter with (1) 8 3/4 four wire lead with (1) male four spade connector and (1) Female bullet terminal, (1) 8 1/2 in. four wire lead with (1) Female four spade connector and (1) 9 in. bare wire lead
(1) Ring terminal