If your TTU-2830 seems to be failing, before contacting CalAmp about returning it, first try the following troubleshooting steps to make sure that something else other than the hardware isn't causing the problem:
- Make sure that the vehicle has a clear view of the sky.
- Check that the vehicle ignition key is in the ON position.
- Check the status LEDs:
Note: The status LED lights may be hard to find when they aren't lit. They're located on the front of the TTU (trailer tracking unit) on the right, if you have the harness cable going down.
- Ensure that the COMM LED is solid orange.
- Ensure that the GPS LED is solid green.
- Ensure that the COMM LED is solid orange.
- Make sure that the cabling isn’t bent or constricted (and not cut!).
- Verify the wiring connection and that it is not loose or broken:
- Red wire to a constant (unswitched) +12 VDC or +24 VDC supply — preferably, connected directly to the vehicle battery terminal or as close to it as possible. This connection point should be fuse-protected to not more than 5 amps.
- White wire to the vehicle ignition.
- Black wire to chassis ground.
- Red wire to a constant (unswitched) +12 VDC or +24 VDC supply — preferably, connected directly to the vehicle battery terminal or as close to it as possible. This connection point should be fuse-protected to not more than 5 amps.
- Verify that the TTU is reporting to CalAmp:
- In the CalAmp application, go to the Tracking screen to check whether any events are being reported for the vehicle and that it appears in its current location on the map.
- Go to the Admin >> Devices screen.
- Perform a search using the serial number of the TTU. (See Searching for Devices for details if needed.)
- Check the Last Event Time column to make sure that it shows a recent timestamp.
If the event timestamp is recent, the unit is connecting to cellular and is reporting data as expected.
- Check the Asset Name column as well to make sure that an asset is assigned to the device. (This is required in order for the location to be displayed on the CalAmp map for devices that aren't cargo monitoring.)
If no asset name appears in the Asset Name column, add an asset as shown in Adding an Asset.
- In the CalAmp application, go to the Tracking screen to check whether any events are being reported for the vehicle and that it appears in its current location on the map.
- If step 6 shows that the TTU still isn't reporting data to CalAmp, try swapping out the nonfunctioning TTU for a known working TTU, just to check for certain whether the device is the problem.
If you've tried all these troubleshooting steps and the device is still malfunctioning, you can open a ticket at CalAmp Support Page, as shown in Returning Hardware and Obtaining a Replacement [Performing an RMA].