Parameters

The MG One has 17 parameters.

● Confirmed◆ In testing○ Supported× Not supported

Battery

Control module voltage `VPWR`SAE J1979Confirmed

Power input to the OBD control module. VPWR is normally battery voltage, less any voltage drop in the circuit between the battery and the control module.

Pelican can show this parameter as the starter battery voltage.

Service 01PID 42
Module7E0 → 7E8
Every10 s

Bits 0 to 15 of the reply, 16 bits.

Formula: $\frac{val}{1000}$
Range: 0 to 65.535 V
Unit: V

Confirmed for 2024.

Knock sensor voltage `ONE_KNOCK_SNS_V`

Service 22DID B140
Module7E0 → 7E8
Every1 s
Testing

Bits 0 to 7 of the reply, 8 bits.

Formula: $\frac{val \times 5}{255}$
Range: 0 to 5 V
Unit: V

In testing for 2021 to 2023, 2025 to 2026. Not supported for 2024.

Clocks

Time since engine start `RUNTM`SAE J1979Confirmed

Increments while the engine is running. Freezes if the engine stalls. Resets to zero during every control module power-up and when entering the key-on, engine off position. Limited to 65,535 seconds and will not wrap around to zero.

Service 01PID 1F
Module7E0 → 7E8
Every1 s

Bits 0 to 15 of the reply, 16 bits.

Formula: $val$
Range: 0 to 65535 s
Unit: s

Confirmed for 2024.

ECU

Vehicle gateway status `ONE_GWM_STATUS`Confirmed

Service 22DID D001
Module710 → 718
Every4 s
Testing for 2021 to 2023, 2025 to 2026

Example reply from a 2024 MG One.

Bits 0 to 7 of the reply, 8 bits.

Formula: $val$
Range: 0 to 255
Unit: Number

0x00 = 0 → 0

Confirmed for 2024. In testing for 2021 to 2023, 2025 to 2026.

Engine

Air flow rate from mass air flow sensor `MAF`SAE J1979Confirmed

Pelican can show this parameter as the mass air flow.

Service 01PID 10
Module7E0 → 7E8
Every250 ms

Bits 0 to 15 of the reply, 16 bits.

Formula: $\frac{val}{100}$
Range: 0 to 655.35 g/s
Unit: g/s

Confirmed for 2024.

Calculated engine load `LOAD_PCT`SAE J1979Confirmed

Represents the amount of work the engine is doing. Expected to reach 100% at wide open throttle/wide open pedal at any altitude, temperature or rpm for both naturally aspirated and boosted engines. If engine load is limited for powertrain protection e.g. engine/turbocharger protection, this value may not reach 100%. For hybrid vehicles, indicates the torque produced only by the internal combustion engine, not the torque being delivered by the entire powertrain. For electric vehicles, the meaning of this parameter is undefined.

Pelican can show this parameter as the engine load.

Service 01PID 04
Module7E0 → 7E8
Every250 ms

Bits 0 to 7 of the reply, 8 bits.

Formula: $\frac{val \times 100}{255}$
Range: 0 to 100 %
Unit: %

Confirmed for 2024.

Engine oil pressure `ONE_EOP`

Service 22DID B036
Module7E0 → 7E8
Every1 s
Testing

Bits 0 to 15 of the reply, 16 bits.

Formula: $\frac{val \times 229}{10000}$
Range: 0 to 1500.7515 kPa
Unit: kPa

In testing for 2021 to 2023, 2025 to 2026. Not supported for 2024.

Engine oil temperature `ONE_EO_T`

Service 22DID B034
Module7E0 → 7E8
Every1 s
Testing

Bits 0 to 7 of the reply, 8 bits.

Formula: $val \times 0.75 - 48$
Range: -48 to 143.25 °C
Unit: °C

In testing for 2021 to 2023, 2025 to 2026. Not supported for 2024.

Misfires, cylinder 1 `ONE_MISFIRES_C1`

Service 22DID B143
Module7E0 → 7E8
Every1 s
Testing

Bits 0 to 15 of the reply, 16 bits.

Formula: $val$
Range: 0 to 65535
Unit: Number

In testing for 2021 to 2023, 2025 to 2026. Not supported for 2024.

Misfires, cylinder 2 `ONE_MISFIRES_C2`

Service 22DID B144
Module7E0 → 7E8
Every1 s
Testing

Bits 0 to 15 of the reply, 16 bits.

Formula: $val$
Range: 0 to 65535
Unit: Number

In testing for 2021 to 2023, 2025 to 2026. Not supported for 2024.

Misfires, cylinder 3 `ONE_MISFIRES_C3`

Service 22DID B145
Module7E0 → 7E8
Every1 s
Testing

Bits 0 to 15 of the reply, 16 bits.

Formula: $val$
Range: 0 to 65535
Unit: Number

In testing for 2021 to 2023, 2025 to 2026. Not supported for 2024.

Misfires, cylinder 4 `ONE_MISFIRES_C4`

Service 22DID B146
Module7E0 → 7E8
Every1 s
Testing

Bits 0 to 15 of the reply, 16 bits.

Formula: $val$
Range: 0 to 65535
Unit: Number

In testing for 2021 to 2023, 2025 to 2026. Not supported for 2024.

Short term fuel trim (bank 1) `SHRTFT1`SAE J1979Confirmed

Correction being used by the closed-loop fuel algorithm.

Pelican can show this parameter as the short term fuel trim.

Service 01PID 06
Module7E0 → 7E8
Every250 ms

Bits 0 to 7 of the reply, 8 bits.

Formula: $\frac{val \times 100}{128} - 100$
Range: -100 to 99.2 %
Unit: %

Confirmed for 2024.

Transmission fluid temperature, ECU 10472701 and 11194479 `ONE_ATF_T_ECU_10472701_11194479`

Service 22DID B423
Module7E1 → 7E9
Every1 s
Testing

Bits 0 to 7 of the reply, 8 bits.

Formula: $val - 40$
Range: -40 to 215 °C
Unit: °C

In testing for 2021 to 2023, 2025 to 2026. Not supported for 2024.

Transmission fluid temperature, ECU 10513229 `ONE_ATF_T_ECU_10513229`

Service 22DID 1940
Module7E1 → 7E9
Every1 s
Testing

Bits 0 to 7 of the reply, 8 bits.

Formula: $val - 40$
Range: -40 to 215 °C
Unit: °C

In testing for 2021 to 2023, 2025 to 2026. Not supported for 2024.

Fuel

Fuel tank level `ONE_FUEL_TANK_LEVEL`

Service 22DID B043
Module7E0 → 7E8
Every1 s
Testing

Bits 0 to 15 of the reply, 16 bits.

Formula: $\frac{val}{10}$
Range: 0 to 6553.5 L
Unit: L

In testing for 2021 to 2023, 2025 to 2026. Not supported for 2024.

Trips

Odometer `ONE_GWM_ODO`Confirmed

Pelican can show this parameter as the odometer.

Service 22DID B921
Module710 → 718
Every1 s
Testing for 2021 to 2023, 2025 to 2026

Example reply from a 2024 MG One.

Bits 0 to 23 of the reply, 24 bits.

Formula: $val$
Range: 0 to 16777215 km
Unit: km

0x000000 = 0 → 0 km

Confirmed for 2024. In testing for 2021 to 2023, 2025 to 2026.

Parameters

How to read a parameter card

Odometer `ONE_GWM_ODO`Confirmed

Battery