HEX ezCAN PURE Installation Guide

Optional Plug & Play Input Harness - KTM 001

This is a step-by-step guide to installing an optional, model-specific HEX ezCAN PURE plug & play input harness on KTM 390 models manufactured from 2025 onward.

KTM 001 optional plug & play input harness packaging:

Plug & play harnesses are currently available for the following KTM motorcycles:

  • 390 Adventure X
  • 390 Adventure R
  • 390 Enduro

As an alternative to reading the installation instructions in this section, watch the video below to see how to install the optional plug & play input harness for KTM 390.
  • 1x optional plug-&-play input harness for KTM 390
  • 1x rear light harness
  • 1x horn trigger harness with green wire
Play Video

Step 1

Read the generic HEX ezCAN PURE Installation Guide

The generic HEX ezCAN PURE installation guide contains all the general procedures you need to install a HEX ezCAN PURE on your KTM 390.

If you are planning to install an optional HEX plug-&-play input harness instead of the generic input harness included with the HEX ezCAN PURE, read the instructions below in conjunction with the generic HEX ezCAN PURE installation guide.

HEX ezCAN PURE Installation Guide

Step 2

Expose the Needed Connection Points

IMPORTANT: All disassembly and reassembly instructions on this page are to be regarded as a guide only. For detailed instructions, refer to your motorcycle’s service or workshop manual as appropriate.

Make sure all signal input connection points are easily accessible by doing the steps that follow:

  1. Remove the seat.
  2. The battery is located under the front part of the seat. Remove the protective battery cover (red arrow, left).
  3. Remove the headlight assembly.
  4. Remove the left-side front and right-side front turn signals.
  5. Disconnect the 2-pin JWPF connectors connecting the left and right front turn signals to the motorcycle’s wiring harness (right).
  1. The wiring harness connector for the tail light is located in the rearmost portion of the rear subframe, in front of the tail light.
    • The wiring harness connector for the tail light is a black, 3-pin JWPF connector (left).
  1. The white 4-pin headlight connector is located behind the headlight (red arrow, right).
  1. The horn is located on the front right side of the engine, below the radiator (left).

Step 3

Decide the HEX ezCAN's Location

When installing a HEX ezCAN PURE on KTM 390 models, we recommend that you install the main body of the HEX ezCAN underneath the rear part of the seat, behind the rear sub-frame cross-tube.

Our experience has shown that this placement gives the best combination of input connector placement, battery cable slack, ease of access to the USB port and status LED, and protection from damage.

Step 4

Connect the Optional Plug & Play Input Harness to the HEX ezCAN PURE

Connect the 6-pin male JWPF connector on the optional plug & play input harness to the ezCAN PURE’s 6-pin female JWPF connector (below).

Step 5

Connect the Optional Plug & Play Harness to the Motorcycle

First, switch OFF the motorcycle’s ignition switch.

Next, connect the input connectors on the optional plug & play harness to the motorcycle as follows:

HIGH BEAM splitter (right):

  1. Disconnect the motorcycle’s male and female 4-pin headlight connectors located behind the headlight.
  2. Connect the female connector on the HEX high-beam splitter to the male wiring harness plug on the headlight.
  3. Connect the male connector on the HEX high-beam splitter to the female wiring harness plug on the motorcycle.
  4. Carefully route the blue and green trigger wires back to the HEX ezCAN PURE along existing wiring harness runs and frame tubes.

TAIL LIGHT splitter (left):

  1. Connect the male single-pin connector on the HEX tail light splitter to the female tail light trigger connector (red wire) on the optional plug-&-play wiring harness.
  2. Disconnect the motorcycle’s black 3-pin JWPF connector, located in front of the tail light.
  3. Connect the female JWPF connector on the tail light splitter to the male JWPF wiring harness plug on the motorcycle.
  4. Connect the male JWPF connector on the tail light splitter to the female JWPF wiring harness plug on the motorcycle.
  5. Carefully route the sheathed red trigger wire back to the HEX ezCAN PURE along existing wiring harness runs and frame tubes.

TURN SIGNAL splitters:

Connect and route the turn signal splitter wires as follows:

  1. Connect the optional plug-&-play harness’ JWPF turn signal splitter with black wire between the JWPF connectors for the left front turn signal.
  2. Connect the optional plug-&-play harness’ JWPF turn signal splitter with brown wire between the JWPF connectors for the right front turn signal.
  3. Carefully route the turn signal trigger wires back to the HEX ezCAN PURE along existing wiring harness runs and frame tubes.

Plug-&-play harness HIGH BEAM/HORN wiring:

Route the main plug-&-play harness’ high beam and horn connections forward along the motorcycle as follows:

  1. Starting at the optional plug-&-play harness’ 6-pin JWPF connector, keep the plug-&-play harness’ high beam and horn wires together by wrapping them with electrical insulation tape at approximately 10cm (4″) intervals.
  2. At the high beam and horn wire connectors, use electrical tape to temporarily bind a medium-sized cable tie to the optional plug-&-play harness wiring.
  3. From the point at which the main plug-&-play harness connects to the ezCAN PURE, route the high beam and horn connections forward along the inside edges of the motorcycle’s upper left subframe tube, under the lower left edge of the fuel tank, and along the main wiring harness run toward the headlight and horn.

HORN splitter:

  1. Connect the male single-pin connector on the green horn trigger wire (red arrow, below) to the female horn trigger connector on the optional plug-&-play input harness.
  1. Remove the spade terminal with black wire from the factory horn (below).
  1. Connect the horn splitter’s male+female spade terminal to the exposed male terminal on the horn (below).
  1. Connect the disconnected female spade terminal to the exposed male terminal on the horn splitter (below).
  1. Carefully route the horn splitter wire back to the HEX ezCAN PURE along existing wiring harness runs and frame tubes.

Step 6

Set the Input Inversion and Threshold Voltage Values

To ensure that the HEX ezCAN PURE gives peak performance, adjust its control inputs as follows:

  1. Set the input inversion settings and threshold voltage values as seen in Step 2C of the  HEX ezCAN PURE Software Download & Configuration Guide.
  2. If the threshold voltage values given in the page above do not give consistent performance, adjust the values as shown in the Additional configuration settings for HEX ezCAN PURE section of the HEX ezCAN User Manual (download the manual from here).

Step 7

Continue the Installation

Continue the HEX ezCAN PURE installation from step 8 of the HEX ezCAN PURE installation guide.

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