Installing your GO device is as easy as 1, 2, T!

Published on February 4, 2021

Using a T-harness can be key to your Geotab implementation

The Geotab GO device installation is about as easy as it gets – especially with passenger duty vehicles. Simply plug the GO device into your vehicle’s diagnostic (OBDII) port and you’re off to the races!

The team at Northern BI has worked with hundreds of customers and while this method is the easiest, we recommend using one of Geotab’s install harnesses (often called a “T-harness” or “Y-harness” — see this great summary from Geotab.

Most heavy-duty vehicles require a harness

There are a lot of reasons to use a T-harness. The main reason is that most heavy-duty vehicles don’t have an OBDII diagnostic port! These vehicles often have 6-pin, 9-pin or other sized diagnostic port and would need a T-harness. Even if your vehicle has an OBDII port, we recommend you use a T-harness. 

Reasons to use a T-harness:

  • GO devices in an OBDII port are often exposed and they can be knocked loose – which can cause it to stop reporting.  
  • When you take your vehicle for service, the mechanics would need to remove your device from the OBDII port so they can use it.  Your device might get left behind! 
  • Using a T-harness keeps the device out of the way of the operator of the vehicle – less chance of hitting it with a leg, foot, etc. avoiding any safety issues.

A consistently reporting GO device is critical to your return on investment with Northern BI and Geotab. Vehicle manufactures are also continually changing diagnostic port interfaces. Please reach out if you have questions on how best to outfit your fleet.

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Brian Mackintosh

VP Operations
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