Subaru WRX Vehicle Data API: Signals & Model Years

DIMO gives developers API access to Subaru WRX vehicle data. Model years 2015 and newer connect with a DIMO device (DIMO LTE R1). Headline signals include odometer, fuel percentage and vehicle speed.

DIMO gives developers API access to vehicle-state data: diagnostics, fault codes, battery and fuel health, odometer, and maintenance signals. For the Subaru WRX, data comes from a DIMO device, the DIMO LTE R1, on model years 2015 and newer. Coverage for this vehicle has been tested. The DIMO LTE R1 reports odometer, fuel percentage, engine RPM, DTC count, tire pressure and more, and supports idling, refuel and harsh braking events. Vehicle owners consent to and control sharing, so builders get data with clear provenance.

Signals by connection type

DIMO device — DIMO LTE R1 (2015 and newer)

Signal	DIMO name	Unit
Odometer	`powertrainTransmissionTravelledDistance`	km
Fuel Percentage	`powertrainFuelSystemRelativeLevel`	%
Vehicle Speed	`speed`	km/h
Vehicle Ignition Status	`isIgnitionOn`	—
Engine RPM	`powertrainCombustionEngineSpeed`	rpm
Coolant Temperature	`powertrainCombustionEngineECT`	°C
Air Temperature	`exteriorAirTemperature`	°C
Back Left Wheel	`chassisAxleRow2WheelLeftTirePressure`	kPa
Back Right Wheel	`chassisAxleRow2WheelRightTirePressure`	kPa
Distance with MIL On	`obdDistanceWithMIL`	km
DTC Count	`obdStatusDTCCount`	—
Engine runtime	`obdRunTime`	seconds
Front Left Wheel	`chassisAxleRow1WheelLeftTirePressure`	kPa
Front Right Wheel	`chassisAxleRow1WheelRightTirePressure`	kPa
Fuel Type	`obdFuelTypeName`	—
Low Voltage Battery	`lowVoltageBatteryCurrentVoltage`	volts
OBD Device Plugged In	`obdIsPluggedIn`	—
Powertrain Type	`powertrainType`	—
Throttle Position	`powertrainCombustionEngineTPS`	%
Altitude Level	`currentLocationAltitude`	m
Coordinates	`currentLocationCoordinates`	—
Heading	`currentLocationHeading`	degrees

No factory connectivity?

Subaru WRX model years 2015 and newer have no OEM cloud connection listed. For these years, a DIMO device (DIMO LTE R1) plugs into the OBD-II port and streams vehicle signals once the owner connects it and consents to sharing.

See the developer quickstart for how owners connect vehicles and grant access.

Events available

Idling
Refuel
Harsh braking

Build it

Query the latest Subaru WRX signals with the DIMO TypeScript SDK. The vehicle owner must first share access with your app through DIMO Connect.

import { DIMO } from '@dimo-network/data-sdk';

const dimo = new DIMO('Production');
const tokenId = Number(process.env.DIMO_TOKEN_ID); // from DIMO Connect

const developerJwt = await dimo.auth.getDeveloperJwt({
  client_id: process.env.DIMO_CLIENT_ID,
  domain: process.env.DIMO_REDIRECT_URI,
  private_key: process.env.DIMO_API_KEY,
});
const vehicleJwt = await dimo.tokenexchange.getVehicleJwt({
  ...developerJwt,
  tokenId,
});

// Latest Subaru WRX signals
const data = await dimo.telemetry.query({
  ...vehicleJwt,
  query: `
    query {
      signalsLatest(tokenId: ${tokenId}) {
      powertrainTransmissionTravelledDistance {
        value
        timestamp
      }
      powertrainFuelSystemRelativeLevel {
        value
        timestamp
      }
      speed {
        value
        timestamp
      }
      }
    }`,
});
console.log(JSON.stringify(data, null, 2));

Full walkthrough: Developer quickstart.

FAQ

Can I read fuel level remotely on a Subaru WRX?

Yes, with a DIMO device. The DIMO LTE R1 reports the Fuel Percentage signal (powertrainFuelSystemRelativeLevel), which you can read through the Telemetry API with a Vehicle JWT. You can also request it as a per-segment aggregate through the segments query.

How do I track a Subaru WRX with no connected services?

Install a DIMO device. The DIMO LTE R1 is the connection type listed for the WRX, and it reports signals such as odometer, speed, engine RPM and coordinates. After the owner shares the vehicle with your Developer License, exchange your Developer JWT for a Vehicle JWT and query the Telemetry API.

How do I detect idling on a Subaru WRX?

Use the DIMO LTE R1 with the segments query in the Telemetry API and set the mechanism to idling. Idling segments are contiguous periods where engine RPM stays in the idle range, and this mechanism requires a DIMO device. You can tune the idle threshold with the maxIdleRpm config option, which defaults to 1000.

How do I verify Subaru WRX mileage?

The DIMO LTE R1 reports the Odometer signal. To get verifiable proof of it, call the Attestation API odometer-statement endpoint with a Vehicle JWT. Then retrieve the rawVC through the Telemetry API.

Which Subaru WRX model years work with DIMO?

DIMO devices have been seen working on Subaru WRX model years 2015 and newer. For older vehicles, contact DIMO for additional support.

Do I need hardware to get Subaru WRX data?

Yes. DIMO lists no OEM cloud connection for the Subaru WRX, so data comes from a DIMO device.

Source: DIMO vehicle compatibility records. Coverage tested on a connected vehicle. Last verified 2026-11-06.