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SAE J1939™DA Support Information
This release of the Information Report incorporates changes approved thru November, 2022. This content supersedes
the technical support documentation provided in Appendix D of SAE J1939™-71.
TABLE OF CONTENTS
A.1
SPN 16 – Fuel Filter (Suction Side) Differential Pressure ............................................................................ 3
A.2 SPN 27 – EGR System Diagram .................................................................................................................. 4
A.3 SPN 512 – Driver’s Demand Engine – Percent Torque ................................................................................ 5
A.4 SPN 513 – Torque Definitions ...................................................................................................................... 7
A.5 SPN 518 – Engine Requested Torque/Torque Limit .................................................................................. 10
A.6 SPN 519 – Desired Operating Speed Asymmetry Adjustment ................................................................... 14
A.7 SPN 527 – Cruise Control States ............................................................................................................... 15
A.8 SPN 564 – Differential Lock Positions ........................................................................................................ 16
A.9 SPN 574 – Shift in Process ......................................................................................................................... 17
A.10 SPN 590 – Idle Shutdown ........................................................................................................................... 18
A.11 SPN 695 – Engine Override Control Mode ................................................................................................. 19
A.12 SPN 899 – Engine/Retarder Torque Modes ............................................................................................... 20
A.13 SPN 901 – Retarder Type ........................................................................................................................... 21
A.14 SPN 911 – Service Component Identification ............................................................................................. 22
A.15 SPN 988 – Trip Group 1.............................................................................................................................. 23
A.16 SPN 1014 – Trip Average Engine Speed ................................................................................................... 24
A.17 SPN 1085 – Intended Retarder Percent Torque ......................................................................................... 24
A.18 SPN 1107 – Engine Protection System Timer State .................................................................................. 25
A.19 SPN 1734 – Nominal Level Front Axle ....................................................................................................... 26
A.20 SPN 1761 – Aftertreatment System Diagram ............................................................................................. 27
A.21 SPN 2432 – Engine Demand - Percent Torque .......................................................................................... 28
A.22 SPN 2927 – Actual Inner wheel steering angle .......................................................................................... 33
A.23 SPN 3697 – Diesel Particulate Filter Lamp Command ............................................................................... 34
A.24 SPN 3785 – Tractor Brake Stroke System ................................................................................................. 35
A.25 SPN 4151 – Engine Exhaust Temperature Average .................................................................................. 36
A.26 SPN 5052 – Clutch/Torque Converter Input Speed .................................................................................... 37
A.27 SPN 5275 – Park Brake Activation ............................................................................................................. 37
A.28 SPN 5919 – HVESS Voltage Level ............................................................................................................. 39
A.29 SPN 5920 – Current Flow Directions For A Hybrid System ........................................................................ 57
A.30 SPN 6810 – Hybrid System OBD Related DTC Status .............................................................................. 58
A.31 SPN 7548 – Hybrid System Parameters ..................................................................................................... 59
A.32 SPN 7579 – Elevated Engine Speed Allowed Switch ................................................................................. 60
A.33 SPN 7895 – Stored Energy Source Level................................................................................................... 61
A.34 SPN 8412 – HVES Control ......................................................................................................................... 62
A.35 SPN 9122 – HVES Pack Voltage/Current/Temperature Definition Note Explanation ................................ 63
A.36 SPN 10298 – High Voltage DC Bus Availability ......................................................................................... 64
A.37 SPN 12861 – Electric Vehicle Charging System ........................................................................................ 65
A.38 SPN 12865 – Electric Vehicle Supply Equipment (EVSE) Information ...................................................... 67
A.39 SPN 13030 – Examples for One Byte CRC Calculations, CRC in Byte 8 .................................................. 68
A.40 SPN 13167 – Examples for One Byte CRC Calculations, CRC in Byte 1 .................................................. 72
A.41 SPN 21252 – Transmission Auto-Neutral Auto-Return Interface ............................................................... 77
A.42 SPN 21523 – High Voltage Interface for Diagnostic SPNs ......................................................................... 78
