Vehicle Gateway - Heavy Duty Vehicles - CBL-VG-DJ1939-VM

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Written by Cynthia F.
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Requires one of the following licenses:

VG54 or VG55

Use this workflow to install the Vehicle Gateway (VG54 or VG55) with the diagnostic cable CBL-VG-DJ1939-VM, a CARB Clean Truck Check Volvo Truck Cable.

What You'll Need
COBDII-Y1-Y2_What-You_ll-Need_2024-6-17.png

Quantity

Description

1.png

1

Vehicle Gateway

2.png

1

Diagnostic Y splitter cable

3.png

2

Long-wide cable ties (cable bag)

4.png

2

Short-narrow cable ties (cable bag)

5.png

2

Long-narrow cable ties (cable bag)

6.png

1

Flush cutters (not provided)
Diagnostic Cable CBL-VG-DJ1939-VM
COBDII-Y1-Y2_Diagram_2024-6-17.png

Description

1.png

Spare diagnostic connector

2.png

Main diagnostic connector

3.png

Gateway connector

Install the VG55:

Tip

If you experience any issues during installation, visit the Samsara Help Center to find solutions to most issues.

  1. If you have not already done so, activate the device in the Samsara dashboard using one of the following methods:

  2. With the engine off, locate the vehicle’s diagnostic port. Detach the port from its original mounting location in the vehicle. Typically, the port is located on or near the driver’s side kick panel.

    COBDII-Y1-Y2_2_2024-6-17.png

  3. Connect the Samsara cable to the detached diagnostic port after it has been removed from the vehicle panel.

    COBDII-Y1-Y2_3-_2024-6-17.png

    The vehicle’s diagnostics will remain accessible using the additional port on the Samsara cable.

  4. Fasten the unconnected port to the original port location in the vehicle.

    COBDII-Y1-Y2_10_2024-6-17.png

    Confirm that the Vehicle Gateway and all cables are clear of the vehicle’s pedals, steering linkage, and other moving parts.

  5. With the engine off, locate the vehicle’s diagnostic port. Detach the port from its original mounting location in the vehicle.

    COBDII-Y1-Y2_2_2024-6-17.png

    Typically, the port is located on or near the driver’s side kick panel.

  6. Connect the Samsara cable to the detached diagnostic port after it has been removed from the vehicle panel.

    COBDII-Y1-Y2_10_2024-6-17.png

    The vehicle’s diagnostics will remain accessible using the additional port on the Samsara cable.

  7. Fasten the unconnected port to the original port location in the vehicle.

    Graphics_CBL-VG-DIZU-4_2025-04-01.png

    Confirm that the Vehicle Gateway and all cables are clear of the vehicle’s pedals, steering linkage, and other moving parts.

  8. Plug the 16-pin diagnostics/power connector into the VG. It will click when fully inserted.

    Graphics_CBL-VG-CJ1939-VM_2026-03-20_8__1_.png

  9. Turn on your vehicle and verify that the VG indicator light turns green; this can take 1-3 minutes.

    COBDII-Y1-Y2_5_2024-6-17.png

    Note

    The indicator light may initially display green, but then change again temporarily (for example, such as when the VG connects, but then downloads and installs an update).

    If the indicator light turns amber, ensure that you are installing the VG in an area with good cellular reception.

    If the indicator light turns blue, turn your vehicle off and then back on before proceeding to the next step.

    Note

    In some cases, you may need to take a short drive to enable the VG to retrieve diagnostics and transition the indicator light from blue to green.

  10. If you are using the Samsara Fleet App to set up the VG, you can return to the app to verify the installation after the indicator light turns green.

    1. Ensure the vehicle is powered on and wait for all of the checks in the app to pass.

    2. Add vehicle details like the license plate number in the app.

  11. Plug in the cable connectors for any applicable accessory devices (USB or 8-pin AUX devices).

    COBDII-Y1-Y2_7_2024-6-17.png

    Access the accessory device ports by removing and properly discarding the port covers.

  12. Using the narrow cable ties included in the VG box, secure the power cable and any accessory device cables.

    Note

    Using the wide cable ties which come with the diagnostics cable is not recommended as they may cause interference with the cable connections.

    COBDII-Y1-Y2_8_2024-6-17.png

    Tip

    Secure the VG tightly to the vehicle. A loose VG may cause inconsistent detection of Harsh Events. If possible, avoid surrounding the VG with metal parts as this could interfere with wireless or GPS connectivity.

  13. Secure the power cable and any accessory device cables using the cable ties included in the cable bag.

    COBDII-Y1-Y2_9_2024-6-17.png

    Tip

    Avoid wrapping the power and device cables around the gateway. Avoid tight bends in the cables.

  14. CARB EO Sticker Placement for Vehicles Operating in California: In order to support California Smog Check inspections, apply the enclosed CARB EO Product Information sticker inside the engine compartment.

    1. Identify the CARB EO Product Information sticker provided with the Vehicle Gateway:

      CARB_EO_Sticker.jpg

    2. Use the following diagrams and legend to identify typical VEC label locations by vehicle type:

      • 1.png: Underside of hood

      • 2.png: Engine valve cover

      • 3.png: Radiator shroud

      Passenger Vehicles and Light-Duty Trucks

      Heavy-Duty Trucks
      CARBlabelPlacement.jpg
      sticker_semi.jpg

    3. Place the CARB EO sticker on a smooth, clean surface near the VEC label.

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