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Jeep Grand Cherokee

Battery parameters

The Jeep Grand Cherokee has 24 battery parameters.

● Confirmed◆ In testing○ Supported× Not supported

How to read a parameter card

Charge air cooler outlet temperature GRANDCHEROKEE_CHG_AIR_COOLER_TConfirmed

  • Request21 B4
  • Service 21PID B4
  • Module7E0 → 7E8
  • Every5 s
  • Testing for 1993 to 2015, 2017 to 2020, 2022 to 2026

Example reply from a 2021 Jeep Grand Cherokee.

Bits 96 to 111 of the reply, 16 bits.

0x0014 = 20 → (20 × 9 ÷ 320 + 32) = 32.5625 °F

Formula
(val × 9 ÷ 320 + 32)
Range
0 to 1875 °F
Unit
°F

Confirmed for 2016, 2021. In testing for 1993 to 2015, 2017 to 2020, 2022, 2024 to 2026. Not supported for 2023.

  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 temperature GRANDCHEROKEE_BAT_T

  • Request21 23
  • Service 21PID 23
  • Module7E0 → 7E8
  • Every5 s
  • Testing

Bits 48 to 63 of the reply, 16 bits.

Formula
(val ÷ 64)
Range
0 to 1023 °F
Unit
°F

In testing for 1993 to 2013, 2015, 2017 to 2020, 2022, 2024 to 2026. Not supported for 2014, 2016, 2021, 2023.

Battery voltage, BCM GRANDCHEROKEE_BATT_V_BCMConfirmed

  • Request22 10 04
  • Service 22DID 1004
  • ModuleDA40 → 40
  • Every30 s
  • Testing for 1993 to 2020, 2022, 2024 to 2026

Bits 0 to 7 of the reply, 8 bits.

Formula
(val ÷ 10)
Range
0 to 25 V
Unit
V

Confirmed for 2021, 2023. In testing for 1993 to 2015, 2017 to 2020, 2022, 2024 to 2026. Not supported for 2016.

Charge air cooler outlet temperature GRANDCHEROKEE_CHG_AIR_COOLER_TConfirmed

  • Request21 B4
  • Service 21PID B4
  • Module7E0 → 7E8
  • Every5 s
  • Testing for 1993 to 2015, 2017 to 2020, 2022 to 2026

Example reply from a 2021 Jeep Grand Cherokee.

Bits 96 to 111 of the reply, 16 bits.

0x0014 = 20 → (20 × 9 ÷ 320 + 32) = 32.5625 °F

Formula
(val × 9 ÷ 320 + 32)
Range
0 to 1875 °F
Unit
°F

Confirmed for 2016, 2021. In testing for 1993 to 2015, 2017 to 2020, 2022, 2024 to 2026. Not supported for 2023.

Charge air temperature GRANDCHEROKEE_CHG_AIR_TConfirmed

  • Request22 12 50
  • Service 22DID 1250
  • Module7E0 → 7E8
  • Every5 s
  • Testing for 1993 to 2015, 2017 to 2020, 2022 to 2026

Example reply from a 2021 Jeep Grand Cherokee.

Bits 0 to 7 of the reply, 8 bits.

0x66 = 102 → (102 × 9 ÷ 5 − 83) = 100.6 °F

Formula
(val × 9 ÷ 5 − 83)
Range
-83 to 376 °F
Unit
°F

Confirmed for 2016, 2021. In testing for 1993 to 2015, 2017 to 2020, 2022, 2024 to 2026. Not supported for 2023.

Charge pressure GRANDCHEROKEE_CHG_PConfirmed

  • Request21 B2
  • Service 21PID B2
  • Module7E0 → 7E8
  • Every5 s
  • Testing for 1993 to 2015, 2017 to 2020, 2022 to 2026

Bits 160 to 175 of the reply, 16 bits.

Formula
(val ÷ 221)
Range
0 to 296 psi
Unit
psi

Confirmed for 2016, 2021. In testing for 1993 to 2015, 2017 to 2020, 2022, 2024 to 2026. Not supported for 2023.

Charge temperature GRANDCHEROKEE_CHG_TConfirmed

  • Request21 B2
  • Service 21PID B2
  • Module7E0 → 7E8
  • Every5 s
  • Testing for 1993 to 2015, 2017 to 2020, 2022 to 2026

Bits 144 to 159 of the reply, 16 bits.

Formula
(val × 10 ÷ 711 + 32)
Range
0 to 953 °F
Unit
°F

Confirmed for 2016, 2021. In testing for 1993 to 2015, 2017 to 2020, 2022, 2024 to 2026. Not supported for 2023.

Charged air cooler outlet temperature GRANDCHEROKEE_CHARGED_AIR_COOLER_T

  • Request22 A0 EE
  • Service 22DID A0EE
  • Module7E0 → 7E8
  • Every5 s
  • Testing

Bits 16 to 31 of the reply, 16 bits.

Formula
(val × 36 ÷ 125 + 32)
Range
0 to 18906 °F
Unit
°F

In testing for 1993 to 2015, 2017 to 2020, 2022, 2024 to 2026. Not supported for 2016, 2021, 2023.

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 2006, 2011, 2014 to 2023, 2025. Supported for 2007, 2009, 2012 to 2013, 2024.

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 2023.

Hybrid battery pack remaining charge BAT_SOCSAE J1979Confirmed

The percent remaining level of charge for a battery pack used for propulsion, expressed as a percentage of total useable battery energy, commonly referred to as State Of Charge (SOC).

Pelican can show this parameter as the state of charge.

  • Request01 5B
  • Service 01PID 5B
  • Module7E0 → 7E8
  • Every1 s

Bits 0 to 7 of the reply, 8 bits.

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

Confirmed for 2023 to 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 2023.

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 2023.

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 2023.

Low temperature/charge air coolant pump speed GRANDCHEROKEE_LOW_T_CHG_AIR_CLTConfirmed

  • Request22 15 D4
  • Service 22DID 15D4
  • Module7E0 → 7E8
  • Every5 s
  • Testing for 1993 to 2015, 2017 to 2026

Example reply from a 2016 Jeep Grand Cherokee.

Bits 0 to 15 of the reply, 16 bits.

0x0000 = 0 → 0 rpm

Formula
val
Range
0 to 65535 rpm
Unit
rpm

Confirmed for 2016. In testing for 1993 to 2015, 2017 to 2020, 2022, 2024 to 2026. Not supported for 2021, 2023.

Required fuel charge, cylinder 1 GRANDCHEROKEE_REQUIRED_FUEL_CHG_1Confirmed

  • Request22 02 B2
  • Service 22DID 02B2
  • Module7E0 → 7E8
  • Every1 s
  • Testing for 1993 to 2015, 2017 to 2020, 2022 to 2026

Example reply from a 2021 Jeep Grand Cherokee.

Bits 0 to 15 of the reply, 16 bits.

0x0000 = 0 → (0 ÷ 64) = 0

Formula
(val ÷ 64)
Range
0 to 1023.9843
Unit
Raw value

Confirmed for 2016, 2021. In testing for 1993 to 2015, 2017 to 2020, 2022, 2024 to 2026. Not supported for 2023.

Required fuel charge, cylinder 2 GRANDCHEROKEE_REQUIRED_FUEL_CHG_2Confirmed

  • Request22 02 B3
  • Service 22DID 02B3
  • Module7E0 → 7E8
  • Every1 s
  • Testing for 1993 to 2015, 2017 to 2020, 2022 to 2026

Example reply from a 2021 Jeep Grand Cherokee.

Bits 0 to 15 of the reply, 16 bits.

0x0000 = 0 → (0 ÷ 64) = 0

Formula
(val ÷ 64)
Range
0 to 1023.9843
Unit
Raw value

Confirmed for 2016, 2021. In testing for 1993 to 2015, 2017 to 2020, 2022, 2024 to 2026. Not supported for 2023.

Required fuel charge, cylinder 3 GRANDCHEROKEE_REQUIRED_FUEL_CHG_3Confirmed

  • Request22 02 B4
  • Service 22DID 02B4
  • Module7E0 → 7E8
  • Every1 s
  • Testing for 1993 to 2015, 2017 to 2020, 2022 to 2026

Example reply from a 2021 Jeep Grand Cherokee.

Bits 0 to 15 of the reply, 16 bits.

0x0000 = 0 → (0 ÷ 64) = 0

Formula
(val ÷ 64)
Range
0 to 1023.9843
Unit
Raw value

Confirmed for 2016, 2021. In testing for 1993 to 2015, 2017 to 2020, 2022, 2024 to 2026. Not supported for 2023.

Required fuel charge, cylinder 4 GRANDCHEROKEE_REQUIRED_FUEL_CHG_4Confirmed

  • Request22 02 B5
  • Service 22DID 02B5
  • Module7E0 → 7E8
  • Every1 s
  • Testing for 1993 to 2015, 2017 to 2020, 2022 to 2026

Example reply from a 2021 Jeep Grand Cherokee.

Bits 0 to 15 of the reply, 16 bits.

0x0000 = 0 → (0 ÷ 64) = 0

Formula
(val ÷ 64)
Range
0 to 1023.9843
Unit
Raw value

Confirmed for 2016, 2021. In testing for 1993 to 2015, 2017 to 2020, 2022, 2024 to 2026. Not supported for 2023.

Turbocharger speed GRANDCHEROKEE_TURBOCHARGER_SPD

  • Request22 A0 E4
  • Service 22DID A0E4
  • Module7E0 → 7E8
  • Every250 ms
  • Testing

Bits 16 to 31 of the reply, 16 bits.

Formula
(val × 125 ÷ 16)
Range
0 to 511992 rpm
Unit
rpm

In testing for 1993 to 2015, 2017 to 2020, 2022, 2024 to 2026. Not supported for 2016, 2021, 2023.

Variable geometry turbo virtual charge flow GRANDCHEROKEE_VGT_VIRTUAL_CHG_FLOW

  • Request21 DA
  • Service 21PID DA
  • Module7E0 → 7E8
  • Every5 s
  • Testing

Bits 0 to 15 of the reply, 16 bits.

Formula
(val × 0.0035436904 + 32)
Range
0 to 264 kg/h
Unit
kg/h

In testing for 1993 to 2015, 2017 to 2020, 2022, 2024 to 2026. Not supported for 2016, 2021, 2023.

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 2023.

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 2023.

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 2023.

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 2023.

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