Installing a GPS tracking device on a trailer or RV that doesn’t have a standard OBD2 port or built-in ECU (like most vehicles do) requires a few extra steps. This guide walks you through how to power and connect OBD2 GPS devices in such setups.
What You’ll Need
DC-DC Step-Up Converter
Most trailers and RVs operate on a 6V system, while the GPS tracker requires at least 12V to operate properly. You’ll need a step-up voltage regulator to convert 6V to 12V:
Key Features: IP67 waterproof, aluminum housing, over-voltage protection.
OBD2 Power Adapter Harness
Since there’s no vehicle ECU, you’ll need an adapter to connect power directly from the trailer battery to the GPS device’s OBD2 input:
Setup Instructions
Step 1: Wiring the Power
Connect the 6V trailer battery to the input of the BruceShark DC-DC converter.
Connect the output (12V) of the converter to the red (+) and black (-) wires of the OBD2 power harness.
Step 2: Plug in the GPS Device
Insert the GPS tracker into the OBD2 connector.
Ensure the GPS tracker shows a red light — this means it’s receiving power.
Step 3: Wait for Signal
After the device is powered for 2–5 minutes, it should start transmitting data.
You may need to move the trailer slightly (50 meters or so) to trigger GPS initialization.
Troubleshooting
No VIN Detected? This is normal for trailers. You will need to assign the VIN manually into the device remotely.
Still Not Working? Double-check that the step-up converter is correctly boosting voltage from 6V to 12V. The tracker won’t function on 6V alone.
Need Help?
If you’re unsure about wiring or setup, our support team for assistance.