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Volkswagen Golf

Battery parameters

The Volkswagen Golf has 18 battery parameters.

● Confirmed◆ In testing○ Supported× Not supported

How to read a parameter card

Battery charge level GOLF_BAT_SOCConfirmed

  • Request22 2A 0C
  • Service 22DID 2A0C
  • Module710 → 77A
  • Every10 s
  • Testing for 1988 to 2014, 2021 to 2026

Example reply from a 2020 Volkswagen Golf.

Bits 0 to 7 of the reply, 8 bits.

0x3E = 62 → 62 %

Formula
val
Range
0 to 100 %
Unit
%

Confirmed for 2015 to 2020. In testing for 1988 to 2004, 2013 to 2014. Not supported for 2005 to 2012, 2021 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.

Battery charge level GOLF_BAT_SOCConfirmed

  • Request22 2A 0C
  • Service 22DID 2A0C
  • Module710 → 77A
  • Every10 s
  • Testing for 1988 to 2014, 2021 to 2026

Example reply from a 2020 Volkswagen Golf.

Bits 0 to 7 of the reply, 8 bits.

0x3E = 62 → 62 %

Formula
val
Range
0 to 100 %
Unit
%

Confirmed for 2015 to 2020. In testing for 1988 to 2004, 2013 to 2014. Not supported for 2005 to 2012, 2021 to 2026.

Battery current GOLF_BAT_IConfirmed

  • Request22 2A 09
  • Service 22DID 2A09
  • Module710 → 77A
  • Every1 s
  • Testing for 1988 to 2014, 2021 to 2026

Example reply from a 2020 Volkswagen Golf.

Bits 0 to 31 of the reply, 32 bits. The value is signed.

0x00000668 = 1640 → (1640 ÷ 1000) = 1.64 A

Formula
(val ÷ 1000)
Range
-1000 to 1000 A
Unit
A

Confirmed for 2015 to 2020. In testing for 1988 to 2000, 2002 to 2004, 2013 to 2014. Not supported for 2001, 2005 to 2012, 2021 to 2026.

Battery internal resistance GOLF_BAT_INT_RConfirmed

  • Request22 2A 0E
  • Service 22DID 2A0E
  • Module710 → 77A
  • Every5 s
  • Testing for 1988 to 2014, 2025 to 2026

Example reply from a 2024 Volkswagen Golf.

Bits 0 to 7 of the reply, 8 bits.

0x00 = 0 → (0 × 20 ÷ 100) = 0

Formula
(val × 20 ÷ 100)
Range
0 to 51
Unit
Raw value

Confirmed for 2015 to 2024. In testing for 1988 to 2004, 2013 to 2014. Not supported for 2005 to 2012, 2025 to 2026.

Battery temperature GOLF_BAT_TConfirmed

  • Request22 2A 0B
  • Service 22DID 2A0B
  • Module710 → 77A
  • Every5 s
  • Testing for 1988 to 2014, 2021 to 2026

Example reply from a 2020 Volkswagen Golf.

Bits 0 to 7 of the reply, 8 bits.

0x32 = 50 → (50 − 40) = 10 °C

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

Confirmed for 2015 to 2020. In testing for 1988 to 2004, 2013 to 2014. Not supported for 2005 to 2012, 2021 to 2026.

Battery voltage GOLF_BAT_V_2A07Confirmed

  • Request22 2A 07
  • Service 22DID 2A07
  • Module710 → 77A
  • Every5 s
  • Testing for 1988 to 2011, 2013 to 2014, 2021 to 2026

Example reply from a 2020 Volkswagen Golf.

Bits 0 to 15 of the reply, 16 bits.

0x20FF = 8447 → (8447 ÷ 1000 + 4) = 12.447 V

Formula
(val ÷ 1000 + 4)
Range
4 to 69.535 V
Unit
V

Confirmed for 2015 to 2020. In testing for 1988 to 2004, 2013 to 2014. Supported for 2012. Not supported for 2005 to 2011, 2021 to 2026.

Battery voltage at rest GOLF_BAT_V_AT_RESTConfirmed

  • Request22 2A 10
  • Service 22DID 2A10
  • Module710 → 77A
  • Every5 s
  • Testing for 1988 to 2014, 2021 to 2026

Example reply from a 2020 Volkswagen Golf.

Bits 0 to 7 of the reply, 8 bits.

0x21 = 33 → (33 ÷ 10 + 9) = 12.3 V

Formula
(val ÷ 10 + 9)
Range
9 to 34.5 V
Unit
V

Confirmed for 2015 to 2020. In testing for 1988 to 2004, 2013 to 2014. Not supported for 2005 to 2012, 2021 to 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 2007, 2009 to 2010, 2012 to 2013, 2015 to 2026. Supported for 2006, 2008, 2011, 2014.

eCall battery charge level GOLF_ECALL_SOCConfirmed

  • Request22 08 38
  • Service 22DID 0838
  • Module767 → 7D1
  • Every5 s
  • Testing for 1988 to 2017, 2019

Example reply from a 2026 Volkswagen Golf.

Bits 8 to 15 of the reply, 8 bits.

0x5B = 91 → 91 %

Formula
val
Range
0 to 100 %
Unit
%

Confirmed for 2018, 2020 to 2026. In testing for 1988 to 2004, 2013 to 2014. Not supported for 2005 to 2012, 2015 to 2017, 2019.

eCall battery status GOLF_ECALL_STATUSConfirmed

  • Request22 08 38
  • Service 22DID 0838
  • Module767 → 7D1
  • Every5 s
  • Testing for 1988 to 2017, 2019

Example reply from a 2026 Volkswagen Golf.

Bits 0 to 7 of the reply, 8 bits.

0x02 = 2 → NORMAL

Unit
Named states
States
Raw valueState
1CRITICAL
2NORMAL

Confirmed for 2018, 2020 to 2026. In testing for 1988 to 2004, 2013 to 2014. Not supported for 2005 to 2012, 2015 to 2017, 2019.

Enhanced Hybrid/EV Vehicle Charging State EHEV_MODESAE J1979Confirmed

  • Request01 9A
  • Service 01PID 9A
  • Module7E0 → 7E8
  • Every250 ms

Bits 1 to 2 of the reply, 2 bits.

Unit
Named states
States
Raw valueStateMeaning
0CSMCharge sustaining mode
1CDMCharge depleting mode
2CIMCharge increasing mode

Confirmed for 2025 to 2026. Supported for 2021, 2024.

Hybrid/EV Battery System Current HEV_BATT_ASAE J1979Confirmed

  • Request01 9A
  • Service 01PID 9A
  • Module7E0 → 7E8
  • Every250 ms

Bits 32 to 47 of the reply, 16 bits. The value is signed.

Formula
(val ÷ 10)
Range
-3276.8 to 3276.7 A
Unit
A

Confirmed for 2025 to 2026. Supported for 2021, 2024.

Hybrid/EV Battery System Voltage HEV_BATT_VSAE J1979Confirmed

  • Request01 9A
  • Service 01PID 9A
  • Module7E0 → 7E8
  • Every250 ms

Bits 16 to 31 of the reply, 16 bits.

Formula
(val ÷ 64)
Range
0 to 1023.98 V
Unit
V

Confirmed for 2025 to 2026. Supported for 2021, 2024.

Hybrid/EV Vehicle Charging State HEV_MODESAE J1979Confirmed

  • Request01 9A
  • Service 01PID 9A
  • Module7E0 → 7E8
  • Every250 ms

Bit 0 of the reply.

Unit
Named states
States
Raw valueStateMeaning
0CSMCharge sustaining mode
1CDMCharge depleting mode

Confirmed for 2025 to 2026. Supported for 2021, 2024.

Usable battery charge GOLF_USE_BAT_CHGConfirmed

  • Request22 2A 0F
  • Service 22DID 2A0F
  • Module710 → 77A
  • Every5 s
  • Testing for 1988 to 2014, 2021 to 2026

Example reply from a 2020 Volkswagen Golf.

Bits 0 to 7 of the reply, 8 bits.

0x16 = 22 → 22 Ah

Formula
val
Range
0 to 255 Ah
Unit
Ah

Confirmed for 2015 to 2020. In testing for 1988 to 2004, 2013 to 2014. Not supported for 2005 to 2012, 2021 to 2026.

Battery › Internal

Enhanced Hybrid/EV Vehicle Charging State supported? EHEV_MODE_SUPSAE J1979Confirmed

  • Request01 9A
  • Service 01PID 9A
  • Module7E0 → 7E8
  • Every250 ms

Bit 4 of the reply.

Formula
val
Range
0 to 1
Unit
No or yes

Confirmed for 2025 to 2026. Supported for 2021, 2024.

Hybrid/EV Battery Current supported? HEV_BATT_A_SUPSAE J1979Confirmed

  • Request01 9A
  • Service 01PID 9A
  • Module7E0 → 7E8
  • Every250 ms

Bit 5 of the reply.

Formula
val
Range
0 to 1
Unit
No or yes

Confirmed for 2025 to 2026. Supported for 2021, 2024.

Hybrid/EV Battery Voltage supported? HEV_BATT_V_SUPSAE J1979Confirmed

  • Request01 9A
  • Service 01PID 9A
  • Module7E0 → 7E8
  • Every250 ms

Bit 6 of the reply.

Formula
val
Range
0 to 1
Unit
No or yes

Confirmed for 2025 to 2026. Supported for 2021, 2024.

Hybrid/EV Vehicle Charging State supported? HEV_MODE_SUPSAE J1979Confirmed

  • Request01 9A
  • Service 01PID 9A
  • Module7E0 → 7E8
  • Every250 ms

Bit 7 of the reply.

Formula
val
Range
0 to 1
Unit
No or yes

Confirmed for 2025 to 2026. Supported for 2021, 2024.

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