Odometer or fuel not showing

The FMM003 can read some data straight from the vehicle’s computer through the OBD-II port, including the real odometer and fuel level. But not every vehicle shares that data. If yours shows no fuel level, or an odometer that doesn’t match the dash, this page explains why.

Why it happens

What a vehicle shares over OBD-II depends on the make, model and year. Some vehicles share odometer, fuel level and fault codes. Some share only part of that. Some share none of it.

This is set by the vehicle maker, not by the tracker or the platform. Two vehicles that look the same can behave differently if they are different years or built for different markets.

Location, trips, speed and most alerts don’t depend on this. They come from the tracker itself, so they work whether or not the vehicle shares its data.

What you can do

1. Check the vehicle against our compatibility guide. See vehicle compatibility. Teltonika publishes a list of vehicles and the data it can read from each.
2. Match the odometer to the dash. If the vehicle doesn’t share its odometer, the platform can still keep a distance figure for it. You can adjust the odometer (and engine hours) yourself on the vehicle’s Asset Info > Manage tab, so it matches the reading on the dash, and it carries on from there. See fuel and odometer.
3. Check again after the vehicle has been driven. A tracker that has only just been fitted may not have read the vehicle’s data yet.
4. Tell us the vehicle. Contact us with the make, model and year (or the VIN, if you have it). We can check whether that vehicle should share the data, and review the tracker’s configuration from our end.

Note

If the vehicle doesn’t share its odometer, the platform’s figure is based on the distance the tracker records. It can drift a little from the dash over time. Check it against the dash now and then, for example at each service, and adjust it if needed.

If the readings stopped

If a vehicle used to show fuel or odometer and has stopped, that’s different. Check:

• Is the tracker still reporting? If the vehicle isn’t updating at all, see tracker offline or not reporting.
• Has the vehicle been serviced or had work done? A mechanic may have unplugged the tracker, or plugged it back in loosely. See servicing and unplugging.
• Is something else sharing the port? If a splitter or another device has been added, check the tracker’s extension cable is still firmly connected.

If none of those explain it, contact us.

Before you order more trackers

If fuel level or a real odometer matters to you, ask us before you order for a new make or model. We’ll tell you what to expect from that vehicle. For fuel data on vehicles that don’t share it, a hardwired tracker with a fuel tank sensor is another option. That needs extra hardware — see features.