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Approved (1) New Installation Guide: Field Service Peer Review

by Alkesh Dhak

HRN-RW03K4

Written By: Matthew Reilly (and one other contributor)
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Difficulty

Difficult

Sections

1

  1. There are 3 wires which must be connected.

    • There are 3 wires which must be connected.

    • Red

    • +12/24V Constant power must be connected to a true battery source (live at all times).

    • Black

    • Must be connected to a verified ground.

    • Yellow

    • Ignition sense wire must be connected to a true ignition source.

    • +12/24V when the key is in both ON and Run positions, 0 when in Off position.

  2. Using your wire crimpers, attach the fuse holders on to the Red and Yellow wires using the included parts. The wires should come with the insulation pre stripped; ready for crimp on connectors.

    • Using your wire crimpers, attach the fuse holders on to the Red and Yellow wires using the included parts.

    • The wires should come with the insulation pre stripped; ready for crimp on connectors.

    • Crimp one of the included butt splice connectors on to the end of the Yellow wire.

    • Crimp the open end from the previous step onto one end of the Fuse holder.

    • Using a heat gun, or other heat source, heat shrink the butt splice connectors.

    • Repeat the above steps for the Red wire.

    • The remaining blunt cut end from the fuse holder will be what is connected to the vehicle.

  3. Using your wire crimpers, crimp the ring terminal on to the Black wire.

    • Using your wire crimpers, crimp the ring terminal on to the Black wire.

  4. The assembly should look like this.

    • The assembly should look like this.

    • Geotab does not recommend terminating to unknown circuits! Appropriate reference information is highly encouraged.

    • Known and publicly available publishers for automotive electrical & electronics: Fortin's Wire Color, Alldata DIY, Mitchell 1 DIY.

  6. Locate and verify a constant +12/24V Battery source. Always use a Digital Multi Meter.

    • Locate and verify a constant +12/24V Battery source.

    • Always use a Digital Multi Meter.

    • A suitable battery source will have +12/24V at all times, just like if you were to be connected directly to the battery.

    • Typical locations

    • Ignition switch.

    • Fuse and power distribution panels.

  7. Locate and verify a +12/24V Ignition source. Always use a Digital Multi Meter.

    • Locate and verify a +12/24V Ignition source.

    • Always use a Digital Multi Meter.

    • A suitable Ignition source will have +12/24V while the vehicle's key or button is set to on/run and 0V when set to off.

    • Typical locations

    • Ignition switch.

    • Fuse and power distribution panels.

  8. Connect the ring terminal to a verified ground using a self tapping screw (not included) or existing bolt.

    • Connect the ring terminal to a verified ground using a self tapping screw (not included) or existing bolt.

    • The surface may need to be prepared prior to connection.

    • The ground surface should be bare metal.

    • Remove any paint, corrosion, or other coating if present.

    • Most heavy structure in the dash area is suitable to use as a ground. Always test using a DMM.

    • Star washers and serrated head screws are recommended. (not included)

  9. Once all 3 wires (Red, Black, & Yellow) are connected to the vehicle:

    • Once all 3 wires (Red, Black, & Yellow) are connected to the vehicle:

    • Plug the fuse holder side and the device side of the HRN-RW03K4 harness together.

Finish Line

Author

with 1 other contributor

Matthew Reilly

Member since: 01/10/2022

42 Guides authored

Team

Authors: Field Service Install Member of Authors: Field Service Install

3 Members

61 Guides authored