Vehicles - Diagnostic steps

Before troubleshooting, please follow the steps below to gather all the necessary information about the problem.

The faulty Geotab device's serial number
The type of vehicle (model, year and engine) in which the Geotab device is currently connected.
The type of harness that is installed between the OBDII port and the Geotab device
Tracking the diagnostic clock

When checking the installation, it is important to have access to the device and to make sure that the vehicle's ignition is on. Once the device is connected and powered, 3 lights should be on. If none of the lights are flashing, the device is not powered.

After the initial flashing, the green light will briefly turn solid to indicate that the modem is connected to our servers. The blue LED also lights up briefly to indicate that the GPS is working. Both LEDs will eventually go out if the ignition is turned off.

Red LED - Device configuration

Green LED - Cellular network connectivity

Blue LED - GPS network connectivity

If a light is off, unplug the device for approximately 60 seconds and plug the device back in. Initial start-up may take several minutes.

1. Check the power supply of the Geotab device in the vehicle
Communication problem with the Geotab device	Check that the vehicle's ignition is on Make a trip with the vehicle Check if the vehicle is equipped with an engine cut-off. If so, turn off the engine cut-off switch and wait 5 minutes.
2. Check the information in the Vehicle Identification Sheet
Communication problem with the Geotab device	Check vehicle type, model and year Validate the harness in the Geotab Harness and Installation Guide As of 2019, manufacturers are using telematics specific diagnostic ports type RP1226. Volvo and Mack 2019 and up vehicles must be connected with 2 types of harnesses.
3. Confirm that the device is installed with the correct harness
A red cloud symbol is present next to the vehicle.	Make sure the Geotab modem is powered by the vehicle Check the current status and installation details (blue bar) under the vehicle Verify that the rate plan is active If the plan is in suspension mode, contact AttriX Check the latest GPS, engine and communication records Check for possible problems
4. Check for engine faults
Via the Engine & Device tab > Engine & Maintenance > Faults.	Check if the motor codes present are related to the power supply Check for telematics faults Check an extended date range to see how long the faults have been present
5. Check the physical installation in the vehicle
Checking in the vehicle	Check the installation of the device in the vehicle Check the physical condition and the state of the harness (note that physical damage is out of warranty)
6. Perform a full restart cycle of the device
Checking in the vehicle	Disconnect the device and headgear and wait 60 seconds Reconnect the device and headgear Secure the device in the installation bracket Install with a tie-wrap between the device and the headgear Wait for the device to complete the connectivity cycle (beeps) Confirm that all 3 lights are on (may take a few minutes)
7. Problem solving
Problem resolution	Carry out a road test with a trip of 3 to 5 minutes Validate device communication in MyGeotab If needed, contact AttriX technical support team (888) 299-8555, support@attrix.ca