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Lexus UX

Light parameters

The Lexus UX has 6 light parameters.

● Confirmed◆ In testing○ Supported× Not supported

How to read a parameter card

Hazard switch history LEXUS_HAZARD_SWITCH_HISTORYConfirmed

  • Request21 BC
  • Service 21PID BC
  • Module7B0
  • Every30 s
  • Testing

Example reply from a 2023 Lexus UX.

Bit 2 of the reply.

0b1 = 1 → COMPLETE

Unit
Named states
States
Raw valueStateMeaning
0INCOMPLETEIncomplete
1COMPLETEComplete

Confirmed for 2023. In testing for 2019 to 2022, 2024, 2026. Not supported for 2025.

  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.

Hazard switch history LEXUS_HAZARD_SWITCH_HISTORYConfirmed

  • Request21 BC
  • Service 21PID BC
  • Module7B0
  • Every30 s
  • Testing

Example reply from a 2023 Lexus UX.

Bit 2 of the reply.

0b1 = 1 → COMPLETE

Unit
Named states
States
Raw valueStateMeaning
0INCOMPLETEIncomplete
1COMPLETEComplete

Confirmed for 2023. In testing for 2019 to 2022, 2024, 2026. Not supported for 2025.

Oil pressure switch LEXUS_EOP_LIGHT

  • Request21 12
  • Service 21PID 12
  • Module7C0 → 7C8
  • Every1 s
  • Testing

Bit 35 of the reply.

Formula
val
Range
0 to 1
Unit
Off or on

In testing for 2019 to 2022, 2024, 2026. Not supported for 2023, 2025.

Rheostat LEXUS_RHEOSTAT

Higher values are brighter

  • Request21 68
  • Service 21PID 68
  • Module7C0 → 7C8
  • Every1 s
  • Testing

Bits 0 to 7 of the reply, 8 bits.

Formula
val
Range
0 to 255
Unit
Number

In testing for 2019 to 2022, 2024, 2026. Not supported for 2023, 2025.

Stop light LEXUS_STOP_LIGHT_SWConfirmed

  • Request21 1F
  • Service 21PID 1F
  • Module7B0 → 7B8
  • Every2 s
  • Testing

Example reply from a 2023 Lexus UX.

Bit 0 of the reply.

0b0 = 0 → 0

Formula
val
Range
0 to 1
Unit
Off or on

Confirmed for 2023. In testing for 2019 to 2022, 2024, 2026. Not supported for 2025.

Stop light LEXUS_STOP_LIGHT_SWITCH

  • Request21 25
  • Service 21PID 25
  • Module7E0 → 7E8
  • Every1 s
  • Testing

Bit 5 of the reply.

Formula
val
Range
0 to 1
Unit
Number

In testing for 2019 to 2022, 2024, 2026. Not supported for 2023, 2025.

Stop light relay LEXUS_STOP_LIGHT_RELAYConfirmed

  • Request21 3C
  • Service 21PID 3C
  • Module7B0 → 7B8
  • Every1 s
  • Testing

Example reply from a 2023 Lexus UX.

Bit 0 of the reply.

0b0 = 0 → 0

Formula
val
Range
0 to 1
Unit
Off or on

Confirmed for 2023. In testing for 2019 to 2022, 2024, 2026. Not supported for 2025.

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