Emission parameters
The Ram 3500 has 17 emission parameters.
● Confirmed◆ In testing○ Supported× Not supported
Catalyst inlet temperature RAM3500_CATALYST_INLET_T
- Request
22 39 14 - Service 22
DID 3914 - Module
DA10 → 10 - Every
5 s - Testing
Bits 0 to 15 of the reply, 16 bits.
- Formula
(val × 2 ÷ 100 − 40)- Range
- -40 to 900 °C
- Unit
- °C
In testing for 2026. Not supported for 2025.
Distance between particulate filter cleanings, last 5 average RAM3500_AVG_DIST_REGENS
- Request
22 38 09 - Service 22
DID 3809 - Module
DA10 → 10 - Every
3600 s - Testing
Bits 0 to 15 of the reply, 16 bits.
- Formula
(val × 10)- Range
- 0 to 10000 km
- Unit
- km
In testing for 2026. Not supported for 2025.
Distance since last DPF regen RAM3500_DIST_SINCE_REGEN
- Request
22 38 07 - Service 22
DID 3807 - Module
DA10 → 10 - Every
60 s - Testing
Bits 0 to 23 of the reply, 24 bits.
- Formula
(val ÷ 10)- Range
- 0 to 10000 km
- Unit
- km
In testing for 2026. Not supported for 2025.
Forced regen state RAM3500_FORCED_REGEN
- Request
22 18 EC - Service 22
DID 18EC - Module
DA10 → 10 - Every
5 s - Testing
Bits 0 to 7 of the reply, 8 bits.
- Formula
val- Range
- 0 to 255
- Unit
- Number
In testing for 2026. Not supported for 2025.
Lambda downstream DPF O2 concentration RAM3500_LAMBDA_DPF_DS
- Request
22 18 ED - Service 22
DID 18ED - Module
DA10 → 10 - Every
2 s - Testing
Bits 0 to 15 of the reply, 16 bits.
- Formula
(val ÷ 512)- Range
- 0 to 25 %
- Unit
- %
In testing for 2026. Not supported for 2025.
NOx storage catalyst load RAM3500_NOX_LOAD_PCT
- Request
22 39 2B - Service 22
DID 392B - Module
DA10 → 10 - Every
60 s - Testing
Bits 0 to 15 of the reply, 16 bits.
- Formula
(val × 100 ÷ 65535)- Range
- 0 to 100 %
- Unit
- %
In testing for 2026. Not supported for 2025.
Particulate filter cleaning duration, last 5 average RAM3500_AVG_REGEN_DUR
- Request
22 38 0A - Service 22
DID 380A - Module
DA10 → 10 - Every
3600 s - Testing
Bits 0 to 15 of the reply, 16 bits.
- Formula
(val ÷ 60)- Range
- 0 to 30 min
- Unit
- min
In testing for 2026. Not supported for 2025.
Particulate filter cleaning progress RAM3500_REGEN_PROGRESS
- Request
22 38 0B - Service 22
DID 380B - Module
DA10 → 10 - Every
5 s - Testing
Bits 0 to 15 of the reply, 16 bits.
- Formula
(val × 100 ÷ 65535)- Range
- 0 to 100 %
- Unit
- %
In testing for 2026. Not supported for 2025.
Particulate filter cleaning temperature, last 5 average RAM3500_AVG_REGEN_TEMP
- Request
22 38 08 - Service 22
DID 3808 - Module
DA10 → 10 - Every
3600 s - Testing
Bits 0 to 15 of the reply, 16 bits.
- Formula
(val ÷ 50 − 40)- Range
- -40 to 900 °C
- Unit
- °C
In testing for 2026. Not supported for 2025.
Particulate filter cleanings interrupted RAM3500_REGEN_INTERRUPTED
- Request
22 18 A5 - Service 22
DID 18A5 - Module
DA10 → 10 - Every
60 s - Testing
Bits 0 to 7 of the reply, 8 bits.
- Formula
val- Range
- 0 to 255
- Unit
- Number
In testing for 2026. Not supported for 2025.
Particulate filter differential pressure RAM3500_DPF_DIFF_PRESS
- Request
22 18 E2 - Service 22
DID 18E2 - Module
DA10 → 10 - Every
5 s - Testing
Bits 0 to 15 of the reply, 16 bits.
- Formula
(val ÷ 10 − 3276.8)- Range
- -50 to 50 kPa
- Unit
- kPa
In testing for 2026. Not supported for 2025.
Particulate filter flow resistance RAM3500_DPF_FLOW_RES_2
- Request
22 18 E8 - Service 22
DID 18E8 - Module
DA10 → 10 - Every
5 s - Testing
Bits 0 to 15 of the reply, 16 bits.
- Formula
(val ÷ 10000)- Range
- 0 to 6.5535
- Unit
- Number
In testing for 2026. Not supported for 2025.
Particulate filter inlet temperature RAM3500_DPF_INLET_T
- Request
22 18 DE - Service 22
DID 18DE - Module
DA10 → 10 - Every
5 s - Testing
Bits 0 to 15 of the reply, 16 bits.
- Formula
(val × 2 ÷ 100 − 40)- Range
- -40 to 900 °C
- Unit
- °C
In testing for 2026. Not supported for 2025.
Particulate filter outlet temperature RAM3500_DPF_OUTLET_T
- Request
22 39 15 - Service 22
DID 3915 - Module
DA10 → 10 - Every
5 s - Testing
Bits 0 to 15 of the reply, 16 bits.
- Formula
(val × 2 ÷ 100 − 40)- Range
- -40 to 900 °C
- Unit
- °C
In testing for 2026. Not supported for 2025.
Particulate filter soot level RAM3500_DPF_SOOT_PCT
- Request
22 18 E4 - Service 22
DID 18E4 - Module
DA10 → 10 - Every
30 s - Testing
Bits 0 to 15 of the reply, 16 bits.
- Formula
(val × 1000 ÷ 65535)- Range
- 0 to 100 %
- Unit
- %
In testing for 2026. Not supported for 2025.
Total particulate filter cleanings completed RAM3500_REGEN_COMPLETED
- Request
22 39 12 - Service 22
DID 3912 - Module
DA10 → 10 - Every
3600 s - Testing
Bits 0 to 15 of the reply, 16 bits.
- Formula
val- Range
- 0 to 65535
- Unit
- Number
In testing for 2026. Not supported for 2025.
Total particulate filter cleanings started RAM3500_REGEN_TOTAL
- Request
22 18 A4 - Service 22
DID 18A4 - Module
DA10 → 10 - Every
3600 s - Testing
Bits 0 to 15 of the reply, 16 bits.
- Formula
val- Range
- 0 to 65535
- Unit
- Number
In testing for 2026. Not supported for 2025.
