Audi Q4 e-tron

Engine parameters

The Audi Q4 e-tron has 18 engine parameters.

● Confirmed◆ In testing○ Supported× Not supported

How to read a parameter card

Electric motor non-vehicle power limitation Q4ETRON_HV_EM_NV_PWR_LIMITATIONConfirmed

  • Request22 15 D1
  • Service 22DID 15D1
  • Module710 → 77A
  • Every1 s
  • Testing for 2022 to 2023, 2025 to 2026

Example reply from a 2024 Audi Q4 e-tron.

Bits 24 to 31 of the reply, 8 bits.

0xD3 = 211 → (211 × 50) = 10,550 W

Formula
(val × 50)
Range
0 to 12750 W
Unit
W

Confirmed for 2021, 2024. In testing for 2022 to 2023, 2025 to 2026.

  1. The parameter's name and its ID in the OBDb. Confirmed shows when a response from a real car confirms the parameter.
  2. The clutch mark shows a Connectable, a parameter that Pelican surfaces in its interface.
  3. The service and PID/DID asked for, the control module it's sent to, and how often Pelican asks.
  4. The reply's bytes. The parameter's bytes are blue. Bytes for other parameters in the same reply are grayed out. Hover over a byte to see the parameter it represents.
  5. Where the parameter is in the response, and how Pelican converts the raw value into a value.
  6. A real reply, decoded. The raw value comes first, then the reading.
  7. Which model years have tested this parameter.

Calculated engine load LOAD_PCTSAE 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.

  • Request01 04
  • Service 01PID 04
  • Module7E0 → 7E8
  • Every250 ms

Bits 0 to 7 of the reply, 8 bits.

Formula
(val × 100 ÷ 255)
Range
0 to 100 %
Unit
%

Confirmed for 2022 to 2025. Supported for 2021.

Coolant circulation pump duty Q4ETRON_COOLANT_CIRC_PUMP_DUTYConfirmed

  • Request22 27 6D
  • Service 22DID 276D
  • ModuleFC00 → FE0076
  • Every1 s
  • Testing for 2021 to 2023, 2025 to 2026

Bits 0 to 15 of the reply, 16 bits.

Formula
(val ÷ 100)
Range
0 to 100 %
Unit
%

Confirmed for 2024. In testing for 2022 to 2023, 2025 to 2026. Not supported for 2021.

Electric motor non-vehicle power limitation Q4ETRON_HV_EM_NV_PWR_LIMITATIONConfirmed

  • Request22 15 D1
  • Service 22DID 15D1
  • Module710 → 77A
  • Every1 s
  • Testing for 2022 to 2023, 2025 to 2026

Example reply from a 2024 Audi Q4 e-tron.

Bits 24 to 31 of the reply, 8 bits.

0xD3 = 211 → (211 × 50) = 10,550 W

Formula
(val × 50)
Range
0 to 12750 W
Unit
W

Confirmed for 2021, 2024. In testing for 2022 to 2023, 2025 to 2026.

Electric motor power limitation Q4ETRON_HV_EM_PWR_LIMITATIONConfirmed

  • Request22 15 D1
  • Service 22DID 15D1
  • Module710 → 77A
  • Every1 s
  • Testing for 2022 to 2023, 2025 to 2026

Example reply from a 2024 Audi Q4 e-tron.

Bits 8 to 23 of the reply, 16 bits.

0x0001 = 1 → (1 × 50) = 50 W

Formula
(val × 50)
Range
0 to 3276750 W
Unit
W

Confirmed for 2021, 2024. In testing for 2022 to 2023, 2025 to 2026.

Engine coolant temperature ECTSAE J1979Confirmed

Your engine temperature must operate within a certain temperature range to operate efficiently and safely. If it runs too hot, then your engine could be permanently damaged. If it runs too cold, then your engine will use more fuel than necessary.

Pelican can show this parameter as the engine coolant temperature.

  • Request01 05
  • Service 01PID 05
  • Module7E0 → 7E8
  • Every500 ms

Bits 0 to 7 of the reply, 8 bits.

Formula
(val − 40)
Range
-40 to 215 °C
Unit
°C

Confirmed for 2022 to 2025. Supported for 2021.

Engine RPM RPMSAE J1979Confirmed

  • Request01 0C
  • Service 01PID 0C
  • Module7E0 → 7E8
  • Every250 ms

Bits 0 to 15 of the reply, 16 bits.

Formula
(val ÷ 4)
Range
0 to 16383.75 rpm
Unit
rpm

Confirmed for 2022 to 2025. Supported for 2021.

Front left temperature flap actual Q4ETRON_FRONT_LEFT_T_FLAP_ACTConfirmed

  • Request22 26 22
  • Service 22DID 2622
  • Module746 → 7B0
  • Every1 s
  • Testing for 2022 to 2023, 2025 to 2026

Example reply from a 2024 Audi Q4 e-tron.

Bits 16 to 23 of the reply, 8 bits.

0x64 = 100 → (100 ÷ 2) = 50 %

Formula
(val ÷ 2)
Range
0 to 100 %
Unit
%

Confirmed for 2021, 2024. In testing for 2022 to 2023, 2025 to 2026.

Front right temperature flap actual Q4ETRON_FRONT_RIGHT_T_FLAP_ACTConfirmed

  • Request22 26 26
  • Service 22DID 2626
  • Module746 → 7B0
  • Every1 s
  • Testing for 2022 to 2023, 2025 to 2026

Example reply from a 2024 Audi Q4 e-tron.

Bits 16 to 23 of the reply, 8 bits.

0x5F = 95 → (95 ÷ 2) = 47.5 %

Formula
(val ÷ 2)
Range
0 to 100 %
Unit
%

Confirmed for 2021, 2024. In testing for 2022 to 2023, 2025 to 2026.

Outside temperature, from cabin sensor Q4ETRON_AAT_CABINConfirmed

  • Request22 26 0A
  • Service 22DID 260A
  • Module746 → 7B0
  • Every1 s
  • Testing for 2022 to 2023, 2025 to 2026

Example reply from a 2024 Audi Q4 e-tron.

Bits 0 to 7 of the reply, 8 bits.

0x81 = 129 → (129 ÷ 2 − 50) = 14.5 °C

Formula
(val ÷ 2 − 50)
Range
-50 to 77.5 °C
Unit
°C

Confirmed for 2021, 2024. In testing for 2022 to 2023, 2025 to 2026.

Radiator fan duty Q4ETRON_RADIATOR_FAN_DUTYConfirmed

  • Request22 20 55
  • Service 22DID 2055
  • ModuleFC00 → FE0076
  • Every1 s
  • Testing for 2021 to 2023, 2025 to 2026

Bits 0 to 15 of the reply, 16 bits.

Formula
(val ÷ 100)
Range
0 to 100 %
Unit
%

Confirmed for 2024. In testing for 2022 to 2023, 2025 to 2026. Not supported for 2021.

Rotor temperature model Q4ETRON_ROTOR_T_MODEL

  • Request22 2C CC
  • Service 22DID 2CCC
  • ModuleFC00 → FE007B
  • Every1 s
  • Testing

Bits 0 to 31 of the reply, 32 bits.

Formula
val
Range
0 to 1000 °C
Unit
°C

In testing for 2022 to 2023, 2025 to 2026. Not supported for 2021, 2024.

Temperature, electric drive inflow coolant Q4ETRON_ELEC_DRIVE_INFLOW_COOLANT_T

  • Request22 4F AE
  • Service 22DID 4FAE
  • ModuleFC00 → FE007B
  • Every1 s
  • Testing

Bits 0 to 31 of the reply, 32 bits.

Formula
val
Range
0 to 1000 °C
Unit
°C

In testing for 2022 to 2023, 2025 to 2026. Not supported for 2021, 2024.

Temperature, evaporator output Q4ETRON_HVAC_EVAP_TConfirmed

  • Request22 26 12
  • Service 22DID 2612
  • Module746 → 7B0
  • Every1 s
  • Testing for 2022 to 2023, 2025 to 2026

Example reply from a 2024 Audi Q4 e-tron.

Bits 0 to 15 of the reply, 16 bits. The value is signed.

0x01E0 = 480 → (480 ÷ 10) = 48 °C

Formula
(val ÷ 10)
Range
-3276.8 to 3276.7 °C
Unit
°C

Confirmed for 2021, 2024. In testing for 2022 to 2023, 2025 to 2026.

Temperature, front left deflector Q4ETRON_FRONT_LEFT_DEFL_TConfirmed

  • Request22 26 0C
  • Service 22DID 260C
  • Module746 → 7B0
  • Every1 s
  • Testing for 2022 to 2023, 2025 to 2026

Example reply from a 2024 Audi Q4 e-tron.

Bits 0 to 7 of the reply, 8 bits.

0x74 = 116 → (116 × 0.333) = 38.628 °C

Formula
(val × 0.333)
Range
0 to 84.915 °C
Unit
°C

Confirmed for 2021, 2024. In testing for 2022 to 2023, 2025 to 2026.

Temperature, front right deflector Q4ETRON_FRONT_RIGHT_DEFL_TConfirmed

  • Request22 26 0D
  • Service 22DID 260D
  • Module746 → 7B0
  • Every1 s
  • Testing for 2022 to 2023, 2025 to 2026

Example reply from a 2024 Audi Q4 e-tron.

Bits 0 to 7 of the reply, 8 bits.

0x76 = 118 → (118 × 0.333) = 39.294 °C

Formula
(val × 0.333)
Range
0 to 84.915 °C
Unit
°C

Confirmed for 2021, 2024. In testing for 2022 to 2023, 2025 to 2026.

Temperature, interior Q4ETRON_HVAC_IATConfirmed

  • Request22 26 13
  • Service 22DID 2613
  • Module746 → 7B0
  • Every1 s
  • Testing for 2022 to 2023, 2025 to 2026

Example reply from a 2024 Audi Q4 e-tron.

Bits 0 to 15 of the reply, 16 bits. The value is signed.

0x00A0 = 160 → (160 ÷ 10) = 16 °C

Formula
(val ÷ 10)
Range
-3276.8 to 3276.7 °C
Unit
°C

Confirmed for 2021, 2024. In testing for 2022 to 2023, 2025 to 2026.

Temperature, motor Q4ETRON_MOTOR_T

  • Request22 46 72
  • Service 22DID 4672
  • ModuleFC00 → FE007B
  • Every1 s
  • Testing

Bits 0 to 31 of the reply, 32 bits.

Formula
val
Range
0 to 1000 °C
Unit
°C

In testing for 2022 to 2023, 2025 to 2026. Not supported for 2021, 2024.

Temperature, rear deflector Q4ETRON_REAR_DEFL_TConfirmed

  • Request22 26 3D
  • Service 22DID 263D
  • Module746 → 7B0
  • Every1 s
  • Testing for 2022 to 2023, 2025 to 2026

Example reply from a 2024 Audi Q4 e-tron.

Bits 0 to 7 of the reply, 8 bits.

0x78 = 120 → (120 × 0.333) = 39.96 °C

Formula
(val × 0.333)
Range
0 to 84.915 °C
Unit
°C

Confirmed for 2021, 2024. In testing for 2022 to 2023, 2025 to 2026.

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