Canadian ELD Compliance Solution for Fleet Installation Guide

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The Canadian ELD compliance solution requires installation of the components below. The deployment kit includes a CalAmp LMU-3640 device, an ECMD harness, 24 pin I/O harness (Ignition wire only setup), and a new compliance indicator light ring that connects to the 24 pin I/O.

ELD Indicator Light


In this guide

Installation and Components Overview

Remove any existing VTU solution then install the components below and reconnect any pre-existing sensor inputs or peripheral devices.

  1. CalAmp LMU-3640
  2. Compliance indicator light ring
  3. ECMD cable for diagnostics OBD-II/JBus
    • SDLC equipped vehicles shall be installed using a standard OBD-II harness connected to the OBD-II port fitting on the front side of the SDLC gateway module.
  4. 24 pin I/O harness
    • Make an Ignition wire connection using the I/O harness to supply power for the light ring and other accessories, if any.
      • Connect the indicator light’s male 3-pin to the female 3-pin connector on the I/O harness labeled BUZZER.
      • Do not use the LED connector for these installations.
      • Connect the optional external buzzer’s male 3-pin to the female 3-pin female stub on the indicator light harness if supplied.

Uninstall any existing VTU connections

Remove the device and harness. Re-insulate any exposed wiring using electrical tape and secure it in place using zip ties. Existing sensor connections may be remade after testing the wiring to verify it is operational and in good condition.

Install the CalAmp LMU-3640 ECMD and I/O harness

ECMD (electronic control module diagnostic) harnesses come in several varieties based on light-duty and heavy-duty connector styles. Choose the type shown below that matches the vehicle’s equipment.

SDLC equipped vehicles shall be installed using a standard OBD-II harness connected to the OBD-II port fitting on the front side of the SDLC gateway module.

Installing OBD-II and 6-pin/9-pin DLC ECMD harnesses

  1. Join the two oval shaped harness ends to assemble the universal diagnostic harness.
  2. Remove the vehicle’s OBD-II or diagnostic DLC connector from its OEM mounting location, and insert the OEM OBD-II or DLC into the supplied diagnostic Y-cable’s matching bypass connector end.
  3. Mount the diagnostic Y cable's replacement end OBD-II/DLC connector into the OEM bracket. Make sure to twist and lock the connection in place if you are installing using a 9 pin DLC style connector.
    • The first picture below shows an example of an OEM OBD-II removed from its mounting bracket with a bypass connection made. The second picture shows a replacement OBD-II connector remounted in place of the OEM connector.
    • These pictures show the same process using a 9 pin harness.
      Step_2_-_pic_2.jpg    Step_2_-_3.jpg
  4. Insert the 16 pin Molex diagnostic cable adapter into the 3640.

RP1226 ECMD connector plug and universal adapter end

  1. Join the two oval shaped harness ends to assemble the universal diagnostic harness.
  2. Remove the kick panel in the firewall area to expose the power distribution junction box, then remove the protective end plug from the OEM RP1226 connector. RP1226 connectors are also located just behind or above the gas/brake pedal area.
    RP1226_Step_2_-_Pic_1.jpg    RP1226_Step_2_-_Pic_2.jpg
  3. Remove the protective plug and insert the harness end into the OEM RP1226 connector assembly as shown below.
    RP1226_Step_3_-_Pic_1.jpg    RP1226_Step_3_-_Pic_2.jpg
  4. Connect the white wire on the supplied RP1226 harness to the 24 pin I/O harness’s white ignition wire using a 3 amp fuse holder and butt connector to supply power to I/O harness-connected peripherals.
  5. Insert the 16 pin Molex diagnostic cable adapter into the 3640. 
    RP1226_Step_5_-_Pic_1.jpg    RP1226_Step_5_-_Pic_2.jpg

Volvo Mack Backbone and legacy Mack Connection 

Follow the instructions below if you are performing a Volvo or Mack installation not covered by the standard OBD-II, 6/9 pin DLC, or RP1226 harness instructions. The linked guides cover connections for two types of Volvo/Mack installations, and the legacy Mack add-on kit. 

Once you have completed these steps, proceed to the section titled Install the I/O harness connections.

New Models Installation

  • 2018+ Volvo (All)
  • 2018+ Mack Anthem (AN)
  • 2018+ Mack Granite (GU/GR)

Legacy Volvo Models Installation

  • 2014 - 2018 Volvo (All)

Legacy Mack Add-On Kit

  • 2014 - 2016 Anthem (AN)*
  • 2014 - 2016 Granite (GU/GR)*
  • 2014 + Titan (TD)
  • 2014 + Pinnacle (CXU/CHU/PI )

Install the I/O harnesses connection

Connect the white wire on the I/O harness to an ignition source to provide power to the indicator light ring by using any of the following methods including poke and wrap, butt connectors, add-a-circuit, or posi-tap. Only use solder by customer request.

Reminder: RP1226 installations can provide ignition power to the light ring by joining the supplied RP1226 harness’s white wire to the I/O harness’s white wire. 

  1. With the driver door open and engine OFF, use a multimeter to test and locate a source of true ignition power at the ignition switch or fuse box.

    True ignition DC voltage measurements by key position
    • Lock/Off - 0 volts
    • Accessory one - 0 volts 
    • Accessory two/on - 9 VDC or higher
    • Run/Start - 9 VDC or higher while the engine is cranking. The voltage should not fall below 9 volts while cranking. Once the vehicle is running, confirm the voltage on the same wire is 13.1 VDC or higher and returns to 0 VDC with the engine off. 
  2. Re-connect any sensor inputs as per VZC electrical connections policy.
    Inputs should switch between (-) and (+) or (-) and open polarity and trigger on negative polarity unless otherwise directed. A relay may be required. 
    • Blue wire - Input 1
    • Blue/Orange striped wire - Input 2
    • Violet wire - Input 3
    • Gray wire - Input 4
  3. Insert the 24 pin I/O harness into the 3640.

Mount the ELD indicator light 

Mount the indicator light in a location convenient for the driver to see, such as a hush panel to the right (passenger side) of the steering column. Wherever you choose to mount, it is recommended you stay consistent in the placement for each vehicle whenever possible.

Always look before you drill to verify you will not damage  adjacent equipment. Verify the customer approves of the mounting location before you proceed with drilling.

Recommended Placement Options

1st Choice: Mount to the right side of the steering column. 
2nd Choice: Mount in an empty space on the hush panel.
3rd Choice: Mount to the left side of the steering column. 


Mounting Instructions

  1. Drill a 3/8” inch (10mm) hole in the panel. Always look before you drill to verify you will not damage anything behind the drilled area.
    • To prevent stress at the connector, make sure there is at least 2” inches of clearance space behind the panel where you will mount the indicator light.
  2. Remove the mounting nut and lock washer, then feed the harness through the hole.
  3. Slide the lock washer and mounting nut back up the length of the harness and tighten until snug against the back of the panel to secure the indicator light in place.
  4. Connect the indicator light harness to the 3-pin connector labeled BUZZER on the I/O harness.
  5. Connect any optional external buzzer to the 3-pin connector stub on the indicator harness.

I/O harness with indicator light attached


Indicator Light and VTU behavior

The light ring only illuminates if the driver is not logged in through Bluetooth while the truck is moving. Use your phone or other device to verify Bluetooth is being broadcast.

Mount the LMU-3640

Now that you have made all the connections it is time to mount the LMU 3640.

  1. Extend the harnesses and device to the location you intend to mount the device and secure the device using zip ties. Using the cradle to assist mounting is optional due to each vehicle’s unique installation needs. 
  2. Bundle and secure any excess cabling safely away from interfering with the driver and normal operation of the vehicle.

Configuration and installation verification

  1. Apply the appropriate install type, “LMU 36.82 ELD”.
  2. Installers must also complete the installation using the Fleet hardware installer application or Installer Portal.

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