Transmission parameters

The Ram 2500 has 32 transmission parameters.

● Confirmed◆ In testing○ Supported× Not supported

How to read a parameter card

Current gear `RAM2500_GEAR_2`Confirmed

The automatic transmission gear.

Request22 55 03
Service 22DID 5503
Module7E1 → 7E9
Every1 s
Testing for 2010 to 2018, 2020, 2025 to 2026

Example reply from a 2024 Ram 2500.

Bits 4 to 7 of the reply, 4 bits.

0b0000 = 0 → NEUTRAL

Unit: Named states

States
Raw value	State	Meaning
`0`	`NEUTRAL`	Neutral
`1`	`1`	First gear
`2`	`2`	Second gear
`3`	`3`	Third gear
`4`	`4`	Fourth gear
`5`	`5`	Fifth gear
`6`	`6`	Sixth gear
`7`	`7`	Seventh gear
`8`	`8`	Eighth gear
`9`	`9`	Ninth gear
`10`	`10`	Tenth gear
`11`	`REAR`	Rear
`13`	`PARK`	Park

Confirmed for 2019, 2021 to 2024. In testing for 2010 to 2013, 2015, 2018, 2020, 2025. Not supported for 2014, 2016 to 2017, 2026.

The parameter's name and its ID in the OBDb. Confirmed shows when a response from a real car confirms the parameter.
The clutch mark shows a Connectable, a parameter that Pelican surfaces in its interface.
The service and PID/DID asked for, the control module it's sent to, and how often Pelican asks.
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.
Where the parameter is in the response, and how Pelican converts the raw value into a value.
A real reply, decoded. The raw value comes first, then the reading.
Which model years have tested this parameter.

Automatic transmission temperature `RAM2500_ATF_T_3`

Pelican can show this parameter as the transmission fluid temperature.

Request22 1D 09
Service 22DID 1D09
ModuleDA18
Every1 s
Testing

Bits 0 to 7 of the reply, 8 bits.

Formula: (val − 50)
Range: -50 to 205 °C
Unit: °C

In testing for 2010 to 2020, 2022 to 2026. Not supported for 2021.

Current gear `RAM2500_CURRENT_GEAR`

Request22 3C 22
Service 22DID 3C22
Module7E1 → 7E9
Every250 ms
Testing

Bits 0 to 7 of the reply, 8 bits.

Formula: (val ÷ 10)
Range: 0 to 25.5
Unit: Number

In testing for 2010 to 2020, 2022 to 2026. Not supported for 2021.

Current gear `RAM2500_GEAR_2`Confirmed

The automatic transmission gear.

Request22 55 03
Service 22DID 5503
Module7E1 → 7E9
Every1 s
Testing for 2010 to 2018, 2020, 2025 to 2026

Example reply from a 2024 Ram 2500.

Bits 4 to 7 of the reply, 4 bits.

0b0000 = 0 → NEUTRAL

Unit: Named states

States
Raw value	State	Meaning
`0`	`NEUTRAL`	Neutral
`1`	`1`	First gear
`2`	`2`	Second gear
`3`	`3`	Third gear
`4`	`4`	Fourth gear
`5`	`5`	Fifth gear
`6`	`6`	Sixth gear
`7`	`7`	Seventh gear
`8`	`8`	Eighth gear
`9`	`9`	Ninth gear
`10`	`10`	Tenth gear
`11`	`REAR`	Rear
`13`	`PARK`	Park

Confirmed for 2019, 2021 to 2024. In testing for 2010 to 2013, 2015, 2018, 2020, 2025. Not supported for 2014, 2016 to 2017, 2026.

Current gear `RAM2500_GEAR_CURRENT`Confirmed

Request22 05 1A
Service 22DID 051A
ModuleDA18 → 18
Every500 ms
Testing for 2010 to 2025

Bits 4 to 7 of the reply, 4 bits.

Formula: val
Range: 0 to 15
Unit: Number

Confirmed for 2026. In testing for 2010 to 2013, 2015, 2017 to 2018, 2020, 2025. Not supported for 2014, 2016, 2019, 2021 to 2024.

Desired gear `RAM2500_GEAR_DESIRED`Confirmed

Request22 05 1A
Service 22DID 051A
ModuleDA18 → 18
Every500 ms
Testing for 2010 to 2025

Bits 0 to 3 of the reply, 4 bits.

Formula: val
Range: 0 to 15
Unit: Number

Confirmed for 2026. In testing for 2010 to 2013, 2015, 2017 to 2018, 2020, 2025. Not supported for 2014, 2016, 2019, 2021 to 2024.

Gear `RAM2500_GEAR_3`

Request22 1D 12
Service 22DID 1D12
ModuleDA18
Every1 s
Testing

Bits 0 to 7 of the reply, 8 bits.

Formula: val
Range: 0 to 255
Unit: Number

In testing for 2010 to 2020, 2022 to 2026. Not supported for 2021.

Gear engaged `RAM2500_GEAR_ECU`

Request22 19 2D
Service 22DID 192D
ModuleDA10 → 10
Every1 s
Testing

Bits 0 to 7 of the reply, 8 bits.

Formula: val
Range: 0 to 9
Unit: Number

In testing for 2010 to 2013, 2015, 2018, 2020, 2025. Not supported for 2014, 2016 to 2017, 2019, 2021 to 2024, 2026.

Gearbox output speed `RAM2500_GEARBOX_RPM`

Request22 21 02
Service 22DID 2102
ModuleDA18 → 18
Every1 s
Testing

Bits 0 to 15 of the reply, 16 bits.

Formula: (val ÷ 4)
Range: 0 to 16383 rpm
Unit: rpm

In testing for 2010 to 2013, 2015, 2017 to 2018, 2020, 2025. Not supported for 2014, 2016, 2019, 2021 to 2024, 2026.

Target gear `RAM2500_GEAR_TARGET`Confirmed

The target gear.

Request22 55 04
Service 22DID 5504
Module7E1 → 7E9
Every1 s
Testing for 2010 to 2018, 2020, 2025 to 2026

Example reply from a 2024 Ram 2500.

Bits 4 to 7 of the reply, 4 bits.

0b0000 = 0 → NEUTRAL

Unit: Named states

States
Raw value	State	Meaning
`0`	`NEUTRAL`	Neutral
`1`	`1`	First gear
`2`	`2`	Second gear
`3`	`3`	Third gear
`4`	`4`	Fourth gear
`5`	`5`	Fifth gear
`6`	`6`	Sixth gear
`7`	`7`	Seventh gear
`8`	`8`	Eighth gear
`9`	`9`	Ninth gear
`10`	`10`	Tenth gear
`11`	`REAR`	Rear
`13`	`PARK`	Park

Confirmed for 2019, 2021 to 2024. In testing for 2010 to 2013, 2015, 2017 to 2018, 2020, 2025. Not supported for 2014, 2016, 2026.

TCM reported torque `RAM2500_TCM_TORQUE`Confirmed

Request22 10 18
Service 22DID 1018
ModuleDA18 → 18
Every2 s
Testing for 2010 to 2025

Bits 0 to 15 of the reply, 16 bits.

Formula: (val − 500)
Range: -500 to 1000 N·m
Unit: N·m

Confirmed for 2026. In testing for 2010 to 2013, 2015, 2018, 2020, 2025. Not supported for 2014, 2016 to 2017, 2019, 2021 to 2024.

Torque converter lock status `RAM2500_TQ_CONV_LOCK`

Request22 B0 9B
Service 22DID B09B
Module7E0 → 7E8
Every1 s
Testing

Bits 0 to 7 of the reply, 8 bits.

Formula: val
Range: 0 to 255
Unit: Number

In testing for 2010 to 2020, 2022 to 2026. Not supported for 2021.

Torque converter slip, variant 1 `RAM2500_TQ_CONV_SLIP_VAR_1`

Request22 B0 28
Service 22DID B028
Module7E0 → 7E8
Every250 ms
Testing

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

Formula: (val × 9 ÷ 640)
Range: -460 to 460 rpm
Unit: rpm

In testing for 2010 to 2020, 2022 to 2026. Not supported for 2021.

Torque converter slip, variant 2 `RAM2500_TQ_CONV_SLIP_VAR_2`

Request22 A0 01
Service 22DID A001
Module7E0 → 7E8
Every250 ms
Testing

Bits 48 to 63 of the reply, 16 bits. The value is signed.

Formula: val
Range: -32768 to 32767 rpm
Unit: rpm

In testing for 2010 to 2020, 2022 to 2026. Not supported for 2021.

Transmission fluid temperature `RAM2500_ATF_T`

Request21 72
Service 21PID 72
Module7E1 → 7E9
Every5 s
Testing

Bits 32 to 47 of the reply, 16 bits.

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

In testing for 2010 to 2020, 2022 to 2026. Not supported for 2021.

Transmission fluid temperature `RAM2500_ATF_T_08DF`

Pelican can show this parameter as the transmission fluid temperature.

Request22 08 DF
Service 22DID 08DF
Module7E1 → 7E9
Every5 s
Testing

Bits 0 to 7 of the reply, 8 bits.

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

In testing for 2010 to 2020, 2022 to 2026. Not supported for 2021.

Transmission fluid temperature v.2 `RAM2500_ATF_T_V_2`Confirmed

Request21 18
Service 21PID 18
Module7E0 → 7E8
Every5 s
Testing for 2010 to 2015, 2017 to 2026

Example reply from a 2016 Ram 2500.

Bits 0 to 15 of the reply, 16 bits.

0x173B = 5947 → (5947 ÷ 64) = 92.921875 °F

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

Confirmed for 2016. In testing for 2010 to 2015, 2017 to 2020, 2022 to 2026. Not supported for 2021.

Transmission fluid temperature, variant 1 `RAM2500_ATF_T_VAR_1`

Request22 B0 10
Service 22DID B010
Module7E0 → 7E8
Every5 s
Testing

Bits 0 to 15 of the reply, 16 bits.

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

In testing for 2010 to 2020, 2022 to 2026. Not supported for 2021.

Transmission fluid temperature, variant 2 `RAM2500_ATF_T_VAR_2`

Request22 A0 02
Service 22DID A002
Module7E0 → 7E8
Every5 s
Testing

Bits 0 to 7 of the reply, 8 bits.

Formula: (val × 9 ÷ 5 − 58)
Range: -58 to 401 °F
Unit: °F

In testing for 2010 to 2020, 2022 to 2026. Not supported for 2021.

Transmission fluid temperature, variant 3 `RAM2500_ATF_T_2130`

Request21 30
Service 21PID 30
Module7E1 → 7E9
Every5 s
Testing

Bits 88 to 95 of the reply, 8 bits.

Formula: (val − 50)
Range: -50 to 205 °C
Unit: °C

In testing for 2010 to 2020, 2022 to 2026. Not supported for 2021.

Transmission gear, actual `RAM2500_GEAR`

Request22 A0 A0
Service 22DID A0A0
Module7E0 → 7E8
Every1 s
Testing

Bits 0 to 7 of the reply, 8 bits.

Formula: val
Range: 0 to 255
Unit: Number

In testing for 2010 to 2020, 2022 to 2026. Not supported for 2021.

Transmission gear, commanded `RAM2500_GEAR_CMD`

Request22 A0 9F
Service 22DID A09F
Module7E0 → 7E8
Every1 s
Testing

Bits 0 to 7 of the reply, 8 bits.

Formula: val
Range: 0 to 255
Unit: Number

In testing for 2010 to 2020, 2022 to 2026. Not supported for 2021.

Transmission input speed `RAM2500_AT_INPUT_RPM`

Request22 1D 08
Service 22DID 1D08
ModuleDA18
Every1 s
Testing

Bits 0 to 7 of the reply, 8 bits.

Formula: (val × 25)
Range: 0 to 6375 rpm
Unit: rpm

In testing for 2010 to 2020, 2022 to 2026. Not supported for 2021.

Transmission oil temperature `RAM2500_TOT`

Pelican can show this parameter as the transmission fluid temperature.

Request21 18
Service 21PID 18
ModuleDA10 → 10
Every1 s
Testing

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

Formula: (val ÷ 4)
Range: -512 to 512 °F
Unit: °F

In testing for 2010 to 2013, 2015, 2018, 2020, 2025. Not supported for 2014, 2016 to 2017, 2019, 2021 to 2024, 2026.

Transmission output speed `RAM2500_AT_OUTPUT_RPM`

Request22 1D 07
Service 22DID 1D07
ModuleDA18
Every1 s
Testing

Bits 0 to 7 of the reply, 8 bits.

Formula: (val × 25)
Range: 0 to 6375 rpm
Unit: rpm

In testing for 2010 to 2020, 2022 to 2026. Not supported for 2021.

Transmission sump temperature `RAM2500_TRANS_SUMP_T`

Request22 A0 A3
Service 22DID A0A3
Module7E0 → 7E8
Every5 s
Testing

Bits 0 to 15 of the reply, 16 bits.

Formula: (val × 9 ÷ 640)
Range: 0 to 921 °F
Unit: °F

In testing for 2010 to 2020, 2022 to 2026. Not supported for 2021.

Transmission sump temperature `RAM2500_TRANS_SUMP_T_7E1`

Request21 3A
Service 21PID 3A
Module7E1 → 7E9
Every5 s
Testing

Bits 72 to 87 of the reply, 16 bits.

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

In testing for 2010 to 2020, 2022 to 2026. Not supported for 2021.

Transmission sump temperature, variant 1 `RAM2500_TRANS_SUMP_T_VAR_1`

Request21 3A
Service 21PID 3A
Module7E0 → 7E8
Every5 s
Testing

Bits 80 to 87 of the reply, 8 bits.

Formula: (val × 4)
Range: 0 to 1020 °F
Unit: °F

In testing for 2010 to 2020, 2022 to 2026. Not supported for 2021.

Transmission sump temperature, variant 2 `RAM2500_TRANS_SUMP_T_VAR_2`

Request21 CA
Service 21PID CA
Module7E0 → 7E8
Every5 s
Testing for 2010 to 2020, 2022 to 2026

Bits 80 to 87 of the reply, 8 bits.

Formula: (val × 4)
Range: 0 to 1020 °F
Unit: °F

In testing for 2010 to 2020, 2022 to 2026. Supported for 2021.

Transmission temperature `RAM2500_ATF_T_2`Confirmed

Request22 04 FE
Service 22DID 04FE
Module7E1 → 7E9
Every1 s
Testing for 2010 to 2018, 2020, 2025 to 2026

Example reply from a 2024 Ram 2500.

Bits 0 to 7 of the reply, 8 bits.

0x3B = 59 → (59 × 1.8 − 40) = 66.2 °F

Formula: (val × 1.8 − 40)
Range: -30 to 300 °F
Unit: °F

Confirmed for 2019, 2021 to 2024. In testing for 2010 to 2013, 2015, 2018, 2020, 2025. Not supported for 2014, 2016 to 2017, 2026.

Transmission torque converter temperature `RAM2500_TRANS_TQ_CONV_T`

Request22 A0 A4
Service 22DID A0A4
Module7E0 → 7E8
Every5 s
Testing

Bits 0 to 15 of the reply, 16 bits.

Formula: (val × 9 ÷ 320)
Range: 0 to 1843 °F
Unit: °F

In testing for 2010 to 2020, 2022 to 2026. Not supported for 2021.

Transmission torque converter temperature, variant 1 `RAM2500_TRANS_TQ_CONV_T_VAR_1`

Request21 3A
Service 21PID 3A
Module7E0 → 7E8
Every5 s
Testing

Bits 96 to 111 of the reply, 16 bits.

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

In testing for 2010 to 2020, 2022 to 2026. Not supported for 2021.

Transmission torque converter temperature, variant 2 `RAM2500_TRANS_TQ_CONV_T_VAR_2`

Request21 CA
Service 21PID CA
Module7E0 → 7E8
Every5 s
Testing for 2010 to 2020, 2022 to 2026

Bits 96 to 111 of the reply, 16 bits.

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

In testing for 2010 to 2020, 2022 to 2026. Supported for 2021.

Transmission parameters

How to read a parameter card

Current gear `RAM2500_GEAR_2`Confirmed

Automatic transmission temperature `RAM2500_ATF_T_3`

Current gear `RAM2500_CURRENT_GEAR`

Current gear `RAM2500_GEAR_2`Confirmed

Current gear `RAM2500_GEAR_CURRENT`Confirmed

Desired gear `RAM2500_GEAR_DESIRED`Confirmed

Gear `RAM2500_GEAR_3`

Gear engaged `RAM2500_GEAR_ECU`

Gearbox output speed `RAM2500_GEARBOX_RPM`

Target gear `RAM2500_GEAR_TARGET`Confirmed

TCM reported torque `RAM2500_TCM_TORQUE`Confirmed

Torque converter lock status `RAM2500_TQ_CONV_LOCK`

Torque converter slip, variant 1 `RAM2500_TQ_CONV_SLIP_VAR_1`

Torque converter slip, variant 2 `RAM2500_TQ_CONV_SLIP_VAR_2`

Transmission fluid temperature `RAM2500_ATF_T`

Transmission fluid temperature `RAM2500_ATF_T_08DF`

Transmission fluid temperature v.2 `RAM2500_ATF_T_V_2`Confirmed

Transmission fluid temperature, variant 1 `RAM2500_ATF_T_VAR_1`

Transmission fluid temperature, variant 2 `RAM2500_ATF_T_VAR_2`

Transmission fluid temperature, variant 3 `RAM2500_ATF_T_2130`

Transmission gear, actual `RAM2500_GEAR`

Transmission gear, commanded `RAM2500_GEAR_CMD`

Transmission input speed `RAM2500_AT_INPUT_RPM`

Transmission oil temperature `RAM2500_TOT`

Transmission output speed `RAM2500_AT_OUTPUT_RPM`

Transmission sump temperature `RAM2500_TRANS_SUMP_T`

Transmission sump temperature `RAM2500_TRANS_SUMP_T_7E1`

Transmission sump temperature, variant 1 `RAM2500_TRANS_SUMP_T_VAR_1`

Transmission sump temperature, variant 2 `RAM2500_TRANS_SUMP_T_VAR_2`

Transmission temperature `RAM2500_ATF_T_2`Confirmed

Transmission torque converter temperature `RAM2500_TRANS_TQ_CONV_T`

Transmission torque converter temperature, variant 1 `RAM2500_TRANS_TQ_CONV_T_VAR_1`

Transmission torque converter temperature, variant 2 `RAM2500_TRANS_TQ_CONV_T_VAR_2`

Start your test drive today.

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Transmission parameters

Automatic transmission temperature RAM2500_ATF_T_3

Current gear RAM2500_CURRENT_GEAR

Current gear RAM2500_GEAR_2Confirmed

Current gear RAM2500_GEAR_CURRENTConfirmed

Desired gear RAM2500_GEAR_DESIREDConfirmed

Gear RAM2500_GEAR_3

Gear engaged RAM2500_GEAR_ECU

Gearbox output speed RAM2500_GEARBOX_RPM

Target gear RAM2500_GEAR_TARGETConfirmed

TCM reported torque RAM2500_TCM_TORQUEConfirmed

Torque converter lock status RAM2500_TQ_CONV_LOCK

Torque converter slip, variant 1 RAM2500_TQ_CONV_SLIP_VAR_1

Torque converter slip, variant 2 RAM2500_TQ_CONV_SLIP_VAR_2

Transmission fluid temperature RAM2500_ATF_T

Transmission fluid temperature RAM2500_ATF_T_08DF

Transmission fluid temperature v.2 RAM2500_ATF_T_V_2Confirmed

Transmission fluid temperature, variant 1 RAM2500_ATF_T_VAR_1

Transmission fluid temperature, variant 2 RAM2500_ATF_T_VAR_2

Transmission fluid temperature, variant 3 RAM2500_ATF_T_2130

Transmission gear, actual RAM2500_GEAR

Transmission gear, commanded RAM2500_GEAR_CMD

Transmission input speed RAM2500_AT_INPUT_RPM

Transmission oil temperature RAM2500_TOT

Transmission output speed RAM2500_AT_OUTPUT_RPM

Transmission sump temperature RAM2500_TRANS_SUMP_T

Transmission sump temperature RAM2500_TRANS_SUMP_T_7E1

Transmission sump temperature, variant 1 RAM2500_TRANS_SUMP_T_VAR_1

Transmission sump temperature, variant 2 RAM2500_TRANS_SUMP_T_VAR_2

Transmission temperature RAM2500_ATF_T_2Confirmed

Transmission torque converter temperature RAM2500_TRANS_TQ_CONV_T

Transmission torque converter temperature, variant 1 RAM2500_TRANS_TQ_CONV_T_VAR_1

Transmission torque converter temperature, variant 2 RAM2500_TRANS_TQ_CONV_T_VAR_2

Start your test drive today.

Automatic transmission temperature `RAM2500_ATF_T_3`

Current gear `RAM2500_CURRENT_GEAR`

Current gear `RAM2500_GEAR_2`Confirmed

Current gear `RAM2500_GEAR_CURRENT`Confirmed

Desired gear `RAM2500_GEAR_DESIRED`Confirmed

Gear `RAM2500_GEAR_3`

Gear engaged `RAM2500_GEAR_ECU`

Gearbox output speed `RAM2500_GEARBOX_RPM`

Target gear `RAM2500_GEAR_TARGET`Confirmed

TCM reported torque `RAM2500_TCM_TORQUE`Confirmed

Torque converter lock status `RAM2500_TQ_CONV_LOCK`

Torque converter slip, variant 1 `RAM2500_TQ_CONV_SLIP_VAR_1`

Torque converter slip, variant 2 `RAM2500_TQ_CONV_SLIP_VAR_2`

Transmission fluid temperature `RAM2500_ATF_T`

Transmission fluid temperature `RAM2500_ATF_T_08DF`

Transmission fluid temperature v.2 `RAM2500_ATF_T_V_2`Confirmed

Transmission fluid temperature, variant 1 `RAM2500_ATF_T_VAR_1`

Transmission fluid temperature, variant 2 `RAM2500_ATF_T_VAR_2`

Transmission fluid temperature, variant 3 `RAM2500_ATF_T_2130`

Transmission gear, actual `RAM2500_GEAR`

Transmission gear, commanded `RAM2500_GEAR_CMD`

Transmission input speed `RAM2500_AT_INPUT_RPM`

Transmission oil temperature `RAM2500_TOT`

Transmission output speed `RAM2500_AT_OUTPUT_RPM`

Transmission sump temperature `RAM2500_TRANS_SUMP_T`

Transmission sump temperature `RAM2500_TRANS_SUMP_T_7E1`

Transmission sump temperature, variant 1 `RAM2500_TRANS_SUMP_T_VAR_1`

Transmission sump temperature, variant 2 `RAM2500_TRANS_SUMP_T_VAR_2`

Transmission temperature `RAM2500_ATF_T_2`Confirmed

Transmission torque converter temperature `RAM2500_TRANS_TQ_CONV_T`

Transmission torque converter temperature, variant 1 `RAM2500_TRANS_TQ_CONV_T_VAR_1`

Transmission torque converter temperature, variant 2 `RAM2500_TRANS_TQ_CONV_T_VAR_2`