Troubleshooting a "Power disconnected" warning when the device is otherwise online

A Power disconnected warning does not mean the Geotab GO device is offline — it's reporting data, just flagging a power-related fault.

What it usually means

• A loose connection between the GO device, the harness, and the vehicle's diagnostic port.

• A harness or vehicle power-supply issue (not necessarily a true power loss).

• An intermittent connection that comes and goes.

• The vehicle has a kill switch that cuts power when the engine is off — this can trigger the warning even though nothing is actually wrong.

How to troubleshoot it

1. Tap the red question mark / warning icon in the app for the specific fault detail.

2. Verify the harness connection — make sure the GO device is seated securely and the harness isn't loose.

3. Check for recent data in MyGeotab — if the device is still reporting, it isn't truly offline.

4. Check the vehicle's battery voltage and look for any low-voltage alerts in MyGeotab.

5. Ask whether the vehicle uses a kill switch when the driver turns it off — if so, that's the likely explanation and isn't a device fault.

6. Cycle the ignition and confirm whether the warning clears.

If the warning persists after confirming the harness is secure and there's no kill switch involved, treat it as a possible harness or vehicle wiring issue and escalate for further diagnosis.