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Toyota Prius

ECU parameters

The Toyota Prius has 2 ECU parameters.

● Confirmed◆ In testing○ Supported× Not supported

How to read a parameter card

VVT-ie duty ratio bank 1 PRIUS_VVT_IE_DUTY_RATIO_1Confirmed

  • Request22 10 8A
  • Service 22DID 108A
  • Module700 → 708
  • Every1 s
  • Testing for 1997 to 2023, 2026

Example reply from a 2025 Toyota Prius.

Bits 0 to 14 of the reply, 15 bits.

0b011111011011001 = 16089 → (16089 × 399.9 ÷ 65535 − 200) = -101.823589 %

Formula
(val × 399.9 ÷ 65535 − 200)
Range
-200 to -0.0531 %
Unit
%

Confirmed for 2024 to 2025. In testing for 1997 to 2008, 2010 to 2012, 2014 to 2015, 2017 to 2023, 2026. Not supported for 2009, 2013, 2016.

  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.

VVT-ie duty ratio bank 1 PRIUS_VVT_IE_DUTY_RATIO_1Confirmed

  • Request22 10 8A
  • Service 22DID 108A
  • Module700 → 708
  • Every1 s
  • Testing for 1997 to 2023, 2026

Example reply from a 2025 Toyota Prius.

Bits 0 to 14 of the reply, 15 bits.

0b011111011011001 = 16089 → (16089 × 399.9 ÷ 65535 − 200) = -101.823589 %

Formula
(val × 399.9 ÷ 65535 − 200)
Range
-200 to -0.0531 %
Unit
%

Confirmed for 2024 to 2025. In testing for 1997 to 2008, 2010 to 2012, 2014 to 2015, 2017 to 2023, 2026. Not supported for 2009, 2013, 2016.

VVT-ie motor direction: forward bank 1 PRIUS_VVT_IE_MOTOR_DIRECTION_FORWARD_1Confirmed

  • Request22 10 8A
  • Service 22DID 108A
  • Module700 → 708
  • Every1 s
  • Testing for 1997 to 2023, 2026

Example reply from a 2025 Toyota Prius.

Bit 15 of the reply.

0b0 = 0 → 0

Formula
val
Range
0 to 1
Unit
Off or on

Confirmed for 2024 to 2025. In testing for 1997 to 2008, 2010 to 2012, 2014 to 2015, 2017 to 2023, 2026. Not supported for 2009, 2013, 2016.

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