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Subaru Forester

Battery parameters

The Subaru Forester has 15 battery parameters.

● Confirmed◆ In testing○ Supported× Not supported

How to read a parameter card

12V aux battery voltage FORESTER_12V_AUX_BAT_VOLTAGEConfirmed

Pelican can show this parameter as the starter battery voltage.

  • Request22 10 37
  • Service 22DID 1037
  • Module7E7 → 7EF
  • Every1 s
  • Testing for 1997 to 2023, 2025 to 2026

Example reply from a 2024 Subaru Forester.

Bits 0 to 7 of the reply, 8 bits.

0x86 = 134 → (134 × 25.5 ÷ 255) = 13.4 V

Formula
(val × 25.5 ÷ 255)
Range
0 to 25.5 V
Unit
V

Confirmed for 2024. In testing for 1997 to 2004, 2007 to 2008, 2014, 2017, 2021. Not supported for 2005 to 2006, 2009 to 2013, 2015 to 2016, 2018 to 2020, 2022 to 2023, 2025 to 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.

12V aux battery temperature FORESTER_12V_AUX_BAT_TConfirmed

  • Request22 20 E2
  • Service 22DID 20E2
  • Module7E7 → 7EF
  • Every1 s
  • Testing for 1997 to 2023, 2025 to 2026

Example reply from a 2024 Subaru Forester.

Bits 0 to 7 of the reply, 8 bits.

0x7A = 122 → (122 ÷ 2 − 40) = 21 °C

Formula
(val ÷ 2 − 40)
Range
-40 to 87.5 °C
Unit
°C

Confirmed for 2024. In testing for 1997 to 2004, 2007 to 2008, 2014, 2017, 2021. Not supported for 2005 to 2006, 2009 to 2013, 2015 to 2016, 2018 to 2020, 2022 to 2023, 2025 to 2026.

12V aux battery voltage FORESTER_12V_AUX_BAT_VOLTAGEConfirmed

Pelican can show this parameter as the starter battery voltage.

  • Request22 10 37
  • Service 22DID 1037
  • Module7E7 → 7EF
  • Every1 s
  • Testing for 1997 to 2023, 2025 to 2026

Example reply from a 2024 Subaru Forester.

Bits 0 to 7 of the reply, 8 bits.

0x86 = 134 → (134 × 25.5 ÷ 255) = 13.4 V

Formula
(val × 25.5 ÷ 255)
Range
0 to 25.5 V
Unit
V

Confirmed for 2024. In testing for 1997 to 2004, 2007 to 2008, 2014, 2017, 2021. Not supported for 2005 to 2006, 2009 to 2013, 2015 to 2016, 2018 to 2020, 2022 to 2023, 2025 to 2026.

12V battery current FORESTER_12V_CConfirmed

  • Request22 11 35
  • Service 22DID 1135
  • Module7A2
  • Every500 ms
  • Testing for 1997 to 2015, 2017 to 2026

Example reply from a 2016 Subaru Forester.

Bits 0 to 7 of the reply, 8 bits.

0x80 = 128 → (128 − 128) = 0 mA

Formula
(val − 128)
Range
-128 to 127 mA
Unit
mA

Confirmed for 2016. In testing for 1997 to 2002, 2004, 2007 to 2008, 2014, 2017. Not supported for 2003, 2005 to 2006, 2009 to 2013, 2015, 2018 to 2026.

12V battery temperature FORESTER_12V_TConfirmed

  • Request22 11 36
  • Service 22DID 1136
  • Module7A2
  • Every1 s
  • Testing for 1997 to 2015, 2017 to 2026

Bits 0 to 7 of the reply, 8 bits.

Formula
(val − 40)
Range
-40 to 215 °C
Unit
°C

Confirmed for 2016. In testing for 1997 to 2002, 2004, 2007 to 2008, 2014, 2017. Not supported for 2003, 2005 to 2006, 2009 to 2013, 2015, 2018 to 2026.

12V engine restart battery current FORESTER_12V_CURRENTConfirmed

  • Request22 20 12
  • Service 22DID 2012
  • Module7E7 → 7EF
  • Every1 s
  • Testing for 1997 to 2023, 2025 to 2026

Example reply from a 2024 Subaru Forester.

Bits 0 to 15 of the reply, 16 bits.

0x4E1F = 19999 → (19999 ÷ 10 − 2000) = -0.1 A

Formula
(val ÷ 10 − 2000)
Range
-2000 to 4553.5 A
Unit
A

Confirmed for 2024. In testing for 1997 to 2004, 2007 to 2008, 2014, 2017, 2021. Not supported for 2005 to 2006, 2009 to 2013, 2015 to 2016, 2018 to 2020, 2022 to 2023, 2025 to 2026.

12V engine restart battery soc FORESTER_12V_ENGINE_RESTART_BAT_SOCConfirmed

  • Request22 10 77
  • Service 22DID 1077
  • Module7E7 → 7EF
  • Every1 s
  • Testing for 1997 to 2023, 2025 to 2026

Example reply from a 2024 Subaru Forester.

Bits 0 to 7 of the reply, 8 bits.

0xAD = 173 → (173 × 127.5 ÷ 255) = 86.5 %

Formula
(val × 127.5 ÷ 255)
Range
0 to 100 %
Unit
%

Confirmed for 2024. In testing for 1997 to 2004, 2007 to 2008, 2014, 2017, 2021. Not supported for 2005 to 2006, 2009 to 2013, 2015 to 2016, 2018 to 2020, 2022 to 2023, 2025 to 2026.

12V engine restart battery soc control FORESTER_12V_SOC_CONTROLConfirmed

  • Request22 20 14
  • Service 22DID 2014
  • Module7E7 → 7EF
  • Every1 s
  • Testing for 1997 to 2023, 2025 to 2026

Example reply from a 2024 Subaru Forester.

Bits 0 to 7 of the reply, 8 bits.

0xC8 = 200 → (200 × 127.5 ÷ 255) = 100 %

Formula
(val × 127.5 ÷ 255)
Range
0 to 100 %
Unit
%

Confirmed for 2024. In testing for 1997 to 2004, 2007 to 2008, 2014, 2017, 2021. Not supported for 2005 to 2006, 2009 to 2013, 2015 to 2016, 2018 to 2020, 2022 to 2023, 2025 to 2026.

12V engine restart battery temperature FORESTER_12V_ENGINE_RESTART_BAT_TConfirmed

  • Request22 10 79
  • Service 22DID 1079
  • Module7E7 → 7EF
  • Every1 s
  • Testing for 1997 to 2023, 2025 to 2026

Example reply from a 2024 Subaru Forester.

Bits 0 to 7 of the reply, 8 bits.

0x3D = 61 → (61 − 40) = 21 °C

Formula
(val − 40)
Range
-40 to 215 °C
Unit
°C

Confirmed for 2024. In testing for 1997 to 2004, 2007 to 2008, 2014, 2017, 2021. Not supported for 2005 to 2006, 2009 to 2013, 2015 to 2016, 2018 to 2020, 2022 to 2023, 2025 to 2026.

12V engine restart battery voltage FORESTER_12V_ENGINE_RESTART_BAT_VOLTAGEConfirmed

  • Request22 10 39
  • Service 22DID 1039
  • Module7E7 → 7EF
  • Every1 s
  • Testing for 1997 to 2023, 2025 to 2026

Example reply from a 2024 Subaru Forester.

Bits 0 to 7 of the reply, 8 bits.

0x83 = 131 → (131 × 25.5 ÷ 255) = 13.1 V

Formula
(val × 25.5 ÷ 255)
Range
0 to 25.5 V
Unit
V

Confirmed for 2024. In testing for 1997 to 2004, 2007 to 2008, 2014, 2017, 2021. Not supported for 2005 to 2006, 2009 to 2013, 2015 to 2016, 2018 to 2020, 2022 to 2023, 2025 to 2026.

Battery charge/discharge current FORESTER_BAT_CHARGE_DISCHARGE_CURRENTConfirmed

  • Request22 13 22
  • Service 22DID 1322
  • Module7A2 → 7AA
  • Every1 s
  • Testing for 1997 to 2017, 2019 to 2023, 2026

Example reply from a 2025 Subaru Forester.

Bits 0 to 31 of the reply, 32 bits.

0x001E17A9 = 1972137 → (1972137 × 10 ÷ 10000 − 2000) = -27.863 A

Formula
(val × 10 ÷ 10000 − 2000)
Range
-2000 to 4292967.295 A
Unit
A

Confirmed for 2025. In testing for 1997 to 2004, 2007 to 2008, 2014, 2017, 2021. Supported for 2018, 2024. Not supported for 2005 to 2006, 2009 to 2013, 2015 to 2016, 2019 to 2020, 2022 to 2023, 2026.

Battery terminal voltage FORESTER_BAT_TERMINAL_VOLTAGEConfirmed

Pelican can show this parameter as the starter battery voltage.

  • Request22 13 21
  • Service 22DID 1321
  • Module7A2 → 7AA
  • Every1 s
  • Testing for 1997 to 2024, 2026

Example reply from a 2025 Subaru Forester.

Bits 0 to 15 of the reply, 16 bits.

0x2DDF = 11743 → (11743 ÷ 1000) = 11.743 V

Formula
(val ÷ 1000)
Range
0 to 65.535 V
Unit
V

Confirmed for 2025. In testing for 1997 to 2004, 2007 to 2008, 2014, 2017, 2021. Not supported for 2005 to 2006, 2009 to 2013, 2015 to 2016, 2018 to 2020, 2022 to 2024, 2026.

Control module voltage VPWRSAE J1979Confirmed

Power input to the OBD control module. VPWR is normally battery voltage, less any voltage drop in the circuit between the battery and the control module.

Pelican can show this parameter as the starter battery voltage.

  • Request01 42
  • Service 01PID 42
  • Module7E0 → 7E8
  • Every10 s

Bits 0 to 15 of the reply, 16 bits.

Formula
(val ÷ 1000)
Range
0 to 65535 V
Unit
V

Confirmed for 2012, 2016, 2019, 2021 to 2022, 2024 to 2026. Supported for 2009, 2011, 2013 to 2015, 2017 to 2018, 2020, 2023.

Estimated battery temperature FORESTER_ESTIMATED_BAT_TConfirmed

  • Request22 13 23
  • Service 22DID 1323
  • Module7A2 → 7AA
  • Every1 s
  • Testing for 1997 to 2017, 2019 to 2024, 2026

Example reply from a 2025 Subaru Forester.

Bits 0 to 15 of the reply, 16 bits.

0x0074 = 116 → (116 ÷ 2 − 40) = 18 °C

Formula
(val ÷ 2 − 40)
Range
-40 to 32727.5 °C
Unit
°C

Confirmed for 2025. In testing for 1997 to 2004, 2007 to 2008, 2014, 2017, 2021. Supported for 2018. Not supported for 2005 to 2006, 2009 to 2013, 2015 to 2016, 2019 to 2020, 2022 to 2024, 2026.

Mass airflow sensor voltage FORESTER_MAF_VOLTAGE

  • Request22 10 A1
  • Service 22DID 10A1
  • Module7A2 → 7AA
  • Every1 s
  • Testing for 1997 to 2015, 2017, 2019 to 2026

Bits 0 to 7 of the reply, 8 bits.

Formula
(val ÷ 50)
Range
0 to 5.1 V
Unit
V

In testing for 1997 to 2004, 2007 to 2008, 2014, 2017, 2021. Supported for 2016, 2018. Not supported for 2005 to 2006, 2009 to 2013, 2015, 2019 to 2020, 2022 to 2026.

Remaining battery capacity FORESTER_REMAINING_BAT_CAPACITYConfirmed

Pelican can show this parameter as the state of charge.

  • Request22 13 24
  • Service 22DID 1324
  • Module7A2 → 7AA
  • Every1 s
  • Testing for 1997 to 2024, 2026

Example reply from a 2025 Subaru Forester.

Bits 0 to 15 of the reply, 16 bits.

0x037A = 890 → (890 ÷ 10) = 89 %

Formula
(val ÷ 10)
Range
0 to 100 %
Unit
%

Confirmed for 2025. In testing for 1997 to 2002, 2004, 2007 to 2008, 2014, 2017, 2021. Not supported for 2003, 2005 to 2006, 2009 to 2013, 2015 to 2016, 2018 to 2020, 2022 to 2024, 2026.

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