12-24 volt telematics installations for cars, LCV and HGV fleet vehicles

When planning a telematics installation, there are several factors to consider, including the system being installed, the data connection points required and the installation location. Another key factor is that the vehicle’s voltage is also important, as it affects the installation and which hardware or telematics systems can be supported.

Our technicians carry out installations using two main supply voltages:

12V installations

12V telematics installations are suitable for company cars and LCVs. With 12V vehicles, we have several options for connecting the hardware, including an OBD connection or hardwired connections to a permanent live, ignition-switched supply and a secure chassis earth.

These options are not universal, so the connection method depends on what the vehicle supports. Vehicles we commonly see for 12V installations include the Vauxhall Vivaro and Ford Transit. The equipment we install includes standard trackers, safety systems, cameras and dash cams.

24V installations

A common telematics installation mistake is assuming that every installation uses 12V. Many heavy goods vehicles use a 24V electrical supply. Therefore, different vehicle types, including HGVs, buses, and trucks, need to be assessed to confirm the correct supply voltage.

Verification

Due to these differences, it is important to verify the vehicle’s voltage and the requirements of the equipment being installed before proceeding with any installation.

For example, hybrid vehicles can have different electrical configurations, including a conventional 12V auxiliary system, a 48V mild-hybrid system and/or a high-voltage traction battery.

For larger projects, we often carry out preliminary surveys and trials, working closely with you and your chosen telematics supplier to agree on the most suitable installation methods. This helps ensure installations are completed correctly from day one, minimises the risk of unforeseen issues and allows us to plan the work efficiently, keeping vehicle downtime to a minimum.

Identifying the correct power supply is essential, not only to ensure the telematics equipment functions correctly but also to protect the vehicle’s electrical systems and maintain its intended operation. Incorrect connections can result in blown fuses, potential warranty implications and, more importantly, interference with critical vehicle safety and security systems.

How we can help

Our nationwide team of technicians installs a wide range of telematics systems across the full range of fleet vehicles, including cars, vans, light commercial vehicles and heavy-duty fleets. We also cover off-road vehicles, tractors and plant machinery which can have different voltage systems.

For 12V vehicles, installations can include live, ignition, and earth connections. HGV installations are assessed for 24V compatibility and can integrate through FMS, tachograph or approved heavy-vehicle data interfaces.

Every installation includes securely routed wiring and professional fusing. Each system is tested and activated to help deliver reliable data from the system to your platform. If you need support fitting telematics devices to your company vehicle/fleet or have any technical questions or need support, please do not hesitate to get in touch with us.