SmartAsset Telematics Troubleshooting

3 min. readlast update: 01.08.2026

OBD devices plug into a vehicle’s OBD-II port to collect vehicle data and (often) act as a mobile gateway for BLE sensors. Most issues relate to power, port access, installation placement, or network connectivity.

For troubleshooting instructions, please see below.

Issue 1: OBD Device Not Powering On

Possible Causes

  • Loose connection

  • OBD port has no power

  • Device defective

Steps

  1. Unplug the device, wait 30 seconds, plug it back in firmly

  2. Turn ignition ON (some vehicles require engine running)

  3. Test the OBD port with:

    • Another telematics device, or

    • A diagnostic scan tool

  4. Try the device in a different vehicle

 If it doesn’t power on in multiple vehicles, send email to support@smartasset.biz for additional troubleshooting. 

Issue 2: Device Powers On but Shows Offline

Possible Causes

  • Poor cellular signal

  • Initial boot still in progress

  • Platform assignment issue

Steps

  1. Wait 5–10 minutes after first install

  2. Idle or drive the vehicle for 5–10 minutes

  3. Move the vehicle outdoors (clear sky view)

  4. Confirm the device is:

    • Activated

    • Assigned to the correct vehicle

  5. Power-cycle the device (unplug → wait → replug)

Issue 3: Intermittent Data or Delayed Updates

Possible Causes

  • Device hanging loose

  • Metal shielding under dash

  • Port movement while driving

Steps

  1. Use an OBD splitter or extension cable (recommended)

  2. Secure the device up under the dashboard with zip ties

  3. Keep device:

    • Away from metal brackets

    • Clear of wiring bundles

  4. Retest by driving the vehicle

Issue 4: Vehicle Data Missing or Inaccurate

Possible Causes

  • Vehicle compatibility limitations

  • Ignition state not detected

  • Splitter cable wired incorrectly

Steps

  1. Verify supported data points for the vehicle (odometer, etc.)

  2. Confirm ignition is being detected correctly

  3. If using a splitter:

    • Ensure OEM port is fully connected

    • Ensure gateway is on the correct leg of the splitter

  4. Power-cycle device and retest

Issue 5: Driver Reports Warning Lights or Scan Tool Issues

Possible Causes

  • OBD port conflict

  • Older vehicle sensitivity

Steps

  1. Install an OBD splitter cable

  2. Ensure OEM diagnostic access remains available

  3. Reboot the vehicle (key off → wait → restart)

  4. If warnings persist, remove device and send email to support@smartasset.biz

Issue 6: BLE Sensors Not Being Detected (If Applicable)

Possible Causes

  • Distance too far

  • Sensors installed on metal

  • Device not mounted securely

Steps

  1. Confirm BLE sensors are active and assigned

  2. Verify sensors are:

    • On non-metal surfaces

    • Within typical vehicle proximity

  3. Secure the OBD device higher under the dash

  4. Drive vehicle near the BLE-equipped assets

LED Indicator Basics (If Present)

LED State Meaning
Solid Power Device has power
Blinking Booting or searching
Solid Network Online and reporting
No Light No power

 

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