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Lexus IS

Seatbelt parameters

The Lexus IS has 6 seatbelt parameters.

● Confirmed◆ In testing○ Supported× Not supported

How to read a parameter card

Buckle switch, right side IS_BUCKLE_RSConfirmed

  • Request21 04
  • Service 21PID 04
  • Module780 → 788
  • Every1 s
  • Testing for 1998 to 2022, 2024, 2026

Example reply from a 2025 Lexus IS.

Bits 24 to 31 of the reply, 8 bits.

0x01 = 1 → 1

Formula
val
Range
0 to 255
Unit
Number

Confirmed for 2023, 2025. In testing for 1998 to 2022, 2024, 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.

Buckle switch, left side IS_BUCKLE_LS

  • Request21 04
  • Service 21PID 04
  • Module780 → 788
  • Every1 s
  • Testing for 1998 to 2022, 2024, 2026

Bits 32 to 39 of the reply, 8 bits.

Formula
val
Range
0 to 255
Unit
Number

In testing for 1998 to 2022, 2024, 2026. Supported for 2023, 2025.

Buckle switch, right side IS_BUCKLE_RSConfirmed

  • Request21 04
  • Service 21PID 04
  • Module780 → 788
  • Every1 s
  • Testing for 1998 to 2022, 2024, 2026

Example reply from a 2025 Lexus IS.

Bits 24 to 31 of the reply, 8 bits.

0x01 = 1 → 1

Formula
val
Range
0 to 255
Unit
Number

Confirmed for 2023, 2025. In testing for 1998 to 2022, 2024, 2026.

Reverse beep IS_REVERSE_BEEP

  • Request21 AC
  • Service 21PID AC
  • Module7C0 → 7C8
  • Every2 s
  • Testing

Bit 1 of the reply.

Formula
val
Range
0 to 1
Unit
On or off

In testing for 1998 to 2024, 2026. Not supported for 2025.

Seat belt beep, driver IS_SEAT_BELT_BEEP_DRIVERConfirmed

  • Request21 A7
  • Service 21PID A7
  • Module7C0 → 7C8
  • Every2 s
  • Testing for 1998 to 2022, 2024, 2026

Example reply from a 2025 Lexus IS.

Bit 0 of the reply.

0b1 = 1 → 1

Formula
val
Range
0 to 1
Unit
Off or on

Confirmed for 2023, 2025. In testing for 1998 to 2022, 2024, 2026.

Seat belt beep, passenger IS_SEAT_BELT_BEEP_PASSENGERConfirmed

  • Request21 A7
  • Service 21PID A7
  • Module7C0 → 7C8
  • Every2 s
  • Testing for 1998 to 2022, 2024, 2026

Example reply from a 2025 Lexus IS.

Bit 1 of the reply.

0b1 = 1 → 1

Formula
val
Range
0 to 1
Unit
Off or on

Confirmed for 2023, 2025. In testing for 1998 to 2022, 2024, 2026.

Seat belt beep, reminder IS_SEAT_BELT_BEEP_REMINDERConfirmed

  • Request21 A7
  • Service 21PID A7
  • Module7C0 → 7C8
  • Every2 s
  • Testing for 1998 to 2022, 2024, 2026

Example reply from a 2025 Lexus IS.

Bit 2 of the reply.

0b1 = 1 → 1

Formula
val
Range
0 to 1
Unit
Off or on

Confirmed for 2023, 2025. In testing for 1998 to 2022, 2024, 2026.

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