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Chevrolet Blazer

Movement parameters

The Chevrolet Blazer has 7 movement parameters.

● Confirmed◆ In testing○ Supported× Not supported

How to read a parameter card

Vehicle speed BLAZER_VSSConfirmed

Pelican can show this parameter as the speed.

  • Request22 00 0D
  • Service 22DID 000D
  • Module7E0 → 7E8
  • Every250 ms
  • Testing for 1988 to 2012, 2019, 2021, 2025 to 2026

Example reply from a 2024 Chevrolet Blazer.

Bits 0 to 7 of the reply, 8 bits.

0x00 = 0 → 0 km/h

Formula
val
Range
0 to 255 km/h
Unit
km/h

Confirmed for 2020, 2022 to 2024. In testing for 1988 to 1998, 2001 to 2012, 2019, 2021, 2026. Not supported for 1999 to 2000, 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.

Desired idle speed BLAZER_DES_IDLE_SPD

  • Request22 11 92
  • Service 22DID 1192
  • Module7E0 → 7E8
  • Every250 ms
  • Testing

Bits 0 to 7 of the reply, 8 bits.

Formula
(val × 12.5)
Range
0 to 3187.5 rpm
Unit
rpm

In testing for 1988 to 2012, 2019 to 2021, 2023 to 2026. Not supported for 2022.

Output shaft speed BLAZER_OUTPUT_SHFT_SPD

  • Request22 19 42
  • Service 22DID 1942
  • Module7E4 → 7EC
  • Every250 ms
  • Testing

Bits 0 to 7 of the reply, 8 bits.

Formula
(val ÷ 4)
Range
0 to 63.75 rpm
Unit
rpm

In testing for 1988 to 2012, 2019 to 2021, 2023 to 2026. Not supported for 2022.

Torque converter clutch slip speed BLAZER_TC_SLIP_VSSConfirmed

  • Request22 19 91
  • Service 22DID 1991
  • Module7E2 → 7EA
  • Every250 ms
  • Testing for 1988 to 2012, 2019 to 2021, 2023 to 2026

Example reply from a 2022 Chevrolet Blazer.

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

0x0000 = 0 → (0 × 1250 ÷ 10000) = 0 rpm

Formula
(val × 1250 ÷ 10000)
Range
-4096 to 4095.875 rpm
Unit
rpm

Confirmed for 2022. In testing for 1988 to 2012, 2019 to 2021, 2023 to 2026.

Torque converter clutch slip speed BLAZER_TC_SLIP_VSS_DA18

  • Request22 19 91
  • Service 22DID 1991
  • ModuleDA18 → 2AF118
  • Every1 s
  • Testing

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

Formula
(val × 1250 ÷ 10000)
Range
-4096 to 4095.875 rpm
Unit
rpm

In testing for 1988 to 2012, 2019 to 2021, 2023 to 2026. Not supported for 2022.

Torque converter clutch slip speed BLAZER_TQ_CONV_CLU_SLIP_SPD

  • Request22 19 91
  • Service 22DID 1991
  • Module7E0 → 7E8
  • Every250 ms
  • Testing

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

Formula
(val ÷ 8)
Range
-4096 to 4095.875 rpm
Unit
rpm

In testing for 1988 to 2012, 2019 to 2021, 2023 to 2026. Not supported for 2022.

Vehicle speed BLAZER_VSSConfirmed

Pelican can show this parameter as the speed.

  • Request22 00 0D
  • Service 22DID 000D
  • Module7E0 → 7E8
  • Every250 ms
  • Testing for 1988 to 2012, 2019, 2021, 2025 to 2026

Example reply from a 2024 Chevrolet Blazer.

Bits 0 to 7 of the reply, 8 bits.

0x00 = 0 → 0 km/h

Formula
val
Range
0 to 255 km/h
Unit
km/h

Confirmed for 2020, 2022 to 2024. In testing for 1988 to 1998, 2001 to 2012, 2019, 2021, 2026. Not supported for 1999 to 2000, 2025.

Vehicle speed VSSSAE J1979Confirmed

Pelican can show this parameter as the speed.

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

Bits 0 to 7 of the reply, 8 bits.

Formula
val
Range
0 to 255 km/h
Unit
km/h

Confirmed for 2022, 2025. Supported for 2020, 2023 to 2024.

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