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Audi Q4 e-tron

DTC parameters

The Audi Q4 e-tron has 48 DTC parameters.

● Confirmed◆ In testing○ Supported× Not supported

How to read a parameter card

Malfunction indicator lamp MILConfirmed

The MIL status is OFF during key-on, engine-off bulb check unless MIL has also been commanded ON for a detected malfunction. The status reflects whether there are confirmed DTC(s) stored that are illuminating the MIL. It should not reflect the status of the MIL, which could be on for a function check, flashing I/M readiness or flashing for misfire.

Pelican can show this parameter as the checkEngineLightOn.

  • Request01 01
  • Service 01PID 01
  • Module7E0 → 7E8
  • Every10 s

Bit 0 of the reply.

Formula
val
Range
0 to 1
Unit
Off or on

Confirmed for 2022 to 2025. Supported for 2021.

  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.

Malfunction indicator lamp MILSAE J1979Confirmed

The MIL status is OFF during key-on, engine-off bulb check unless MIL has also been commanded ON for a detected malfunction. The status reflects whether there are confirmed DTC(s) stored that are illuminating the MIL. It should not reflect the status of the MIL, which could be on for a function check, flashing I/M readiness or flashing for misfire.

Pelican can show this parameter as the checkEngineLightOn.

  • Request01 01
  • Service 01PID 01
  • Module7E0 → 7E8
  • Every10 s

Bit 0 of the reply.

Formula
val
Range
0 to 1
Unit
Off or on

Confirmed for 2022 to 2025. Supported for 2021.

Number of DTCs stored in this ECU DTC_CNTSAE J1979Confirmed

Number of confirmed emission-related DTCs stored in the ECU available for display using Service $03.

Pelican can show this parameter as the storedDTCCount.

  • Request01 01
  • Service 01PID 01
  • Module7E0 → 7E8
  • Every10 s

Bits 1 to 7 of the reply, 7 bits.

Formula
val
Range
0 to 127
Unit
Number

Confirmed for 2022 to 2025. Supported for 2021.

DTCs › Status

A/C system refrigerant monitoring ACRF_ENASAE J1979Confirmed

  • Request01 41
  • Service 01PID 41
  • Module7E0 → 7E8
  • Every1 s

Bit 19 of the reply.

Formula
val
Range
0 to 1
Unit
No or yes

Confirmed for 2025. Supported for 2021, 2024.

A/C system refrigerant monitoring completed ACRFCMPLSAE J1979Confirmed

  • Request01 41
  • Service 01PID 41
  • Module7E0 → 7E8
  • Every1 s

Bit 27 of the reply.

Formula
val
Range
0 to 1
Unit
Yes or no

Confirmed for 2025. Supported for 2021, 2024.

A/C system refrigerant monitoring ready ACRF_RDYSAE J1979Confirmed

  • Request01 01
  • Service 01PID 01
  • Module7E0 → 7E8
  • Every10 s

Bit 27 of the reply.

Formula
val
Range
0 to 1
Unit
No or yes

Confirmed for 2022 to 2025. Supported for 2021.

Catalyst monitoring CAT_ENASAE J1979Confirmed

  • Request01 41
  • Service 01PID 41
  • Module7E0 → 7E8
  • Every1 s

Bit 23 of the reply.

Formula
val
Range
0 to 1
Unit
No or yes

Confirmed for 2025. Supported for 2021, 2024.

Catalyst monitoring completed CAT_CMPLSAE J1979Confirmed

  • Request01 41
  • Service 01PID 41
  • Module7E0 → 7E8
  • Every1 s

Bit 31 of the reply.

Formula
val
Range
0 to 1
Unit
Yes or no

Confirmed for 2025. Supported for 2021, 2024.

Catalyst monitoring ready CAT_RDYSAE J1979Confirmed

  • Request01 01
  • Service 01PID 01
  • Module7E0 → 7E8
  • Every10 s

Bit 31 of the reply.

Formula
val
Range
0 to 1
Unit
No or yes

Confirmed for 2022 to 2025. Supported for 2021.

Comprehensive component monitoring completed CCM_CMPLSAE J1979Confirmed

  • Request01 41
  • Service 01PID 41
  • Module7E0 → 7E8
  • Every1 s

Bit 9 of the reply.

Formula
val
Range
0 to 1
Unit
Yes or no

Confirmed for 2025. Supported for 2021, 2024.

Comprehensive component monitoring ready CCM_RDYSAE J1979Confirmed

  • Request01 01
  • Service 01PID 01
  • Module7E0 → 7E8
  • Every10 s

Bit 9 of the reply.

Formula
val
Range
0 to 1
Unit
Yes or no

Confirmed for 2022 to 2025. Supported for 2021.

EGR system monitoring EGR_ENASAE J1979Confirmed

  • Request01 41
  • Service 01PID 41
  • Module7E0 → 7E8
  • Every1 s

Bit 16 of the reply.

Formula
val
Range
0 to 1
Unit
No or yes

Confirmed for 2025. Supported for 2021, 2024.

EGR system monitoring completed EGR_CMPLSAE J1979Confirmed

  • Request01 41
  • Service 01PID 41
  • Module7E0 → 7E8
  • Every1 s

Bit 24 of the reply.

Formula
val
Range
0 to 1
Unit
Yes or no

Confirmed for 2025. Supported for 2021, 2024.

EGR system monitoring ready EGR_RDYSAE J1979Confirmed

  • Request01 01
  • Service 01PID 01
  • Module7E0 → 7E8
  • Every10 s

Bit 24 of the reply.

Formula
val
Range
0 to 1
Unit
No or yes

Confirmed for 2022 to 2025. Supported for 2021.

Evaporative system monitoring EVAP_ENASAE J1979Confirmed

  • Request01 41
  • Service 01PID 41
  • Module7E0 → 7E8
  • Every1 s

Bit 21 of the reply.

Formula
val
Range
0 to 1
Unit
No or yes

Confirmed for 2025. Supported for 2021, 2024.

Evaporative system monitoring completed EVAPCMPLSAE J1979Confirmed

  • Request01 41
  • Service 01PID 41
  • Module7E0 → 7E8
  • Every1 s

Bit 29 of the reply.

Formula
val
Range
0 to 1
Unit
Yes or no

Confirmed for 2025. Supported for 2021, 2024.

Evaporative system monitoring ready EVAP_RDYSAE J1979Confirmed

  • Request01 01
  • Service 01PID 01
  • Module7E0 → 7E8
  • Every10 s

Bit 29 of the reply.

Formula
val
Range
0 to 1
Unit
No or yes

Confirmed for 2022 to 2025. Supported for 2021.

Fuel system monitoring completed FUEL_CMPLSAE J1979Confirmed

  • Request01 41
  • Service 01PID 41
  • Module7E0 → 7E8
  • Every1 s

Bit 10 of the reply.

Formula
val
Range
0 to 1
Unit
Yes or no

Confirmed for 2025. Supported for 2021, 2024.

Fuel system monitoring ready FUEL_RDYSAE J1979Confirmed

  • Request01 01
  • Service 01PID 01
  • Module7E0 → 7E8
  • Every10 s

Bit 10 of the reply.

Formula
val
Range
0 to 1
Unit
Yes or no

Confirmed for 2022 to 2025. Supported for 2021.

Heated catalyst monitoring HCAT_ENASAE J1979Confirmed

  • Request01 41
  • Service 01PID 41
  • Module7E0 → 7E8
  • Every1 s

Bit 22 of the reply.

Formula
val
Range
0 to 1
Unit
No or yes

Confirmed for 2025. Supported for 2021, 2024.

Heated catalyst monitoring completed HCATCMPLSAE J1979Confirmed

  • Request01 41
  • Service 01PID 41
  • Module7E0 → 7E8
  • Every1 s

Bit 30 of the reply.

Formula
val
Range
0 to 1
Unit
Yes or no

Confirmed for 2025. Supported for 2021, 2024.

Heated catalyst monitoring ready HCAT_RDYSAE J1979Confirmed

  • Request01 01
  • Service 01PID 01
  • Module7E0 → 7E8
  • Every10 s

Bit 30 of the reply.

Formula
val
Range
0 to 1
Unit
No or yes

Confirmed for 2022 to 2025. Supported for 2021.

Misfire monitoring completed MIS_CMPLSAE J1979Confirmed

  • Request01 41
  • Service 01PID 41
  • Module7E0 → 7E8
  • Every1 s

Bit 11 of the reply.

Formula
val
Range
0 to 1
Unit
Yes or no

Confirmed for 2025. Supported for 2021, 2024.

Misfire monitoring ready MIS_RDYSAE J1979Confirmed

  • Request01 01
  • Service 01PID 01
  • Module7E0 → 7E8
  • Every10 s

Bit 11 of the reply.

Formula
val
Range
0 to 1
Unit
Yes or no

Confirmed for 2022 to 2025. Supported for 2021.

Oxygen sensor heater monitoring HTR_ENASAE J1979Confirmed

  • Request01 41
  • Service 01PID 41
  • Module7E0 → 7E8
  • Every1 s

Bit 17 of the reply.

Formula
val
Range
0 to 1
Unit
No or yes

Confirmed for 2025. Supported for 2021, 2024.

Oxygen sensor heater monitoring completed HTR_CMPLSAE J1979Confirmed

  • Request01 41
  • Service 01PID 41
  • Module7E0 → 7E8
  • Every1 s

Bit 25 of the reply.

Formula
val
Range
0 to 1
Unit
Yes or no

Confirmed for 2025. Supported for 2021, 2024.

Oxygen sensor heater monitoring ready HTR_RDYSAE J1979Confirmed

  • Request01 01
  • Service 01PID 01
  • Module7E0 → 7E8
  • Every10 s

Bit 25 of the reply.

Formula
val
Range
0 to 1
Unit
No or yes

Confirmed for 2022 to 2025. Supported for 2021.

Oxygen sensor monitoring O2S_ENASAE J1979Confirmed

  • Request01 41
  • Service 01PID 41
  • Module7E0 → 7E8
  • Every1 s

Bit 18 of the reply.

Formula
val
Range
0 to 1
Unit
No or yes

Confirmed for 2025. Supported for 2021, 2024.

Oxygen sensor monitoring completed O2S_CMPLSAE J1979Confirmed

  • Request01 41
  • Service 01PID 41
  • Module7E0 → 7E8
  • Every1 s

Bit 26 of the reply.

Formula
val
Range
0 to 1
Unit
Yes or no

Confirmed for 2025. Supported for 2021, 2024.

Oxygen sensor monitoring ready O2S_RDYSAE J1979Confirmed

  • Request01 01
  • Service 01PID 01
  • Module7E0 → 7E8
  • Every10 s

Bit 26 of the reply.

Formula
val
Range
0 to 1
Unit
No or yes

Confirmed for 2022 to 2025. Supported for 2021.

Secondary air system monitoring AIR_ENASAE J1979Confirmed

  • Request01 41
  • Service 01PID 41
  • Module7E0 → 7E8
  • Every1 s

Bit 20 of the reply.

Formula
val
Range
0 to 1
Unit
No or yes

Confirmed for 2025. Supported for 2021, 2024.

Secondary air system monitoring completed AIR_CMPLSAE J1979Confirmed

  • Request01 41
  • Service 01PID 41
  • Module7E0 → 7E8
  • Every1 s

Bit 28 of the reply.

Formula
val
Range
0 to 1
Unit
Yes or no

Confirmed for 2025. Supported for 2021, 2024.

Secondary air system monitoring ready AIR_RDYSAE J1979Confirmed

  • Request01 01
  • Service 01PID 01
  • Module7E0 → 7E8
  • Every10 s

Bit 28 of the reply.

Formula
val
Range
0 to 1
Unit
No or yes

Confirmed for 2022 to 2025. Supported for 2021.

DTCs › Support

A/C system refrigerant monitoring supported ACRF_SUPSAE J1979Confirmed

  • Request01 01
  • Service 01PID 01
  • Module7E0 → 7E8
  • Every10 s

Bit 19 of the reply.

Formula
val
Range
0 to 1
Unit
No or yes

Confirmed for 2022 to 2025. Supported for 2021.

Catalyst monitoring supported CAT_SUPSAE J1979Confirmed

  • Request01 01
  • Service 01PID 01
  • Module7E0 → 7E8
  • Every10 s

Bit 23 of the reply.

Formula
val
Range
0 to 1
Unit
No or yes

Confirmed for 2022 to 2025. Supported for 2021.

Comprehensive component monitoring enabled CCM_ENASAE J1979Confirmed

  • Request01 41
  • Service 01PID 41
  • Module7E0 → 7E8
  • Every1 s

Bit 13 of the reply.

Formula
val
Range
0 to 1
Unit
No or yes

Confirmed for 2025. Supported for 2021, 2024.

Comprehensive component monitoring supported CCM_SUPSAE J1979Confirmed

  • Request01 01
  • Service 01PID 01
  • Module7E0 → 7E8
  • Every10 s

Bit 13 of the reply.

Formula
val
Range
0 to 1
Unit
No or yes

Confirmed for 2022 to 2025. Supported for 2021.

Compression ignition monitoring supported CIM_SUPSAE J1979Confirmed

Indicates support of spark ignition or compression ignition monitors.

  • Request01 01
  • Service 01PID 01
  • Module7E0 → 7E8
  • Every10 s

Bit 12 of the reply.

Unit
Named states
States
Raw valueStateMeaning
0SPARKSpark ignition monitors supported
1COMPRESSIONCompression ignition monitors supported

Confirmed for 2022 to 2025. Supported for 2021.

Compression ignition monitoring supported CIM_SUP_FLAGSAE J1979Confirmed

  • Request01 41
  • Service 01PID 41
  • Module7E0 → 7E8
  • Every1 s

Bit 12 of the reply.

Unit
Named states
States
Raw valueStateMeaning
0SPARKSpark ignition monitors supported
1COMPRESSIONCompression ignition monitors supported

Confirmed for 2025. Supported for 2021, 2024.

EGR system monitoring supported EGR_SUPSAE J1979Confirmed

  • Request01 01
  • Service 01PID 01
  • Module7E0 → 7E8
  • Every10 s

Bit 16 of the reply.

Formula
val
Range
0 to 1
Unit
No or yes

Confirmed for 2022 to 2025. Supported for 2021.

Evaporative system monitoring supported EVAP_SUPSAE J1979Confirmed

  • Request01 01
  • Service 01PID 01
  • Module7E0 → 7E8
  • Every10 s

Bit 21 of the reply.

Formula
val
Range
0 to 1
Unit
No or yes

Confirmed for 2022 to 2025. Supported for 2021.

Fuel system monitoring enabled FUEL_ENASAE J1979Confirmed

  • Request01 41
  • Service 01PID 41
  • Module7E0 → 7E8
  • Every1 s

Bit 14 of the reply.

Formula
val
Range
0 to 1
Unit
No or yes

Confirmed for 2025. Supported for 2021, 2024.

Fuel system monitoring supported FUEL_SUPSAE J1979Confirmed

  • Request01 01
  • Service 01PID 01
  • Module7E0 → 7E8
  • Every10 s

Bit 14 of the reply.

Formula
val
Range
0 to 1
Unit
No or yes

Confirmed for 2022 to 2025. Supported for 2021.

Heated catalyst monitoring supported HCAT_SUPSAE J1979Confirmed

  • Request01 01
  • Service 01PID 01
  • Module7E0 → 7E8
  • Every10 s

Bit 22 of the reply.

Formula
val
Range
0 to 1
Unit
No or yes

Confirmed for 2022 to 2025. Supported for 2021.

Misfire monitoring enabled MIS_ENASAE J1979Confirmed

  • Request01 41
  • Service 01PID 41
  • Module7E0 → 7E8
  • Every1 s

Bit 15 of the reply.

Formula
val
Range
0 to 1
Unit
No or yes

Confirmed for 2025. Supported for 2021, 2024.

Misfire monitoring supported MIS_SUPSAE J1979Confirmed

  • Request01 01
  • Service 01PID 01
  • Module7E0 → 7E8
  • Every10 s

Bit 15 of the reply.

Formula
val
Range
0 to 1
Unit
No or yes

Confirmed for 2022 to 2025. Supported for 2021.

Oxygen sensor heater monitoring supported HTR_SUPSAE J1979Confirmed

  • Request01 01
  • Service 01PID 01
  • Module7E0 → 7E8
  • Every10 s

Bit 17 of the reply.

Formula
val
Range
0 to 1
Unit
No or yes

Confirmed for 2022 to 2025. Supported for 2021.

Oxygen sensor monitoring supported O2S_SUPSAE J1979Confirmed

  • Request01 01
  • Service 01PID 01
  • Module7E0 → 7E8
  • Every10 s

Bit 18 of the reply.

Formula
val
Range
0 to 1
Unit
No or yes

Confirmed for 2022 to 2025. Supported for 2021.

Secondary air system monitoring supported AIR_SUPSAE J1979Confirmed

  • Request01 01
  • Service 01PID 01
  • Module7E0 → 7E8
  • Every10 s

Bit 20 of the reply.

Formula
val
Range
0 to 1
Unit
No or yes

Confirmed for 2022 to 2025. Supported for 2021.

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