NHTSA ID Number: 10141869
Manufacturer Communication Number: DOC-1033423
TSB/Document Date: 2018-06-18
Summary
SS 1033423 : J-1939 Fault Code Source Address (SA), Suspect Parameter Number (SPN), and Failure Mode Indicator (FMI) Descriptions
SS 1033423 : J-1939 Fault Code Source
Address (SA), Suspect Parameter Number
(SPN), and Failure Mode Indicator (FMI)
Descriptions
J-1939 Fault Code Source Address (SA), Suspect Parameter
Number (SPN), and Failure Mode Indicator (FMI) Descriptions
This solution helps explain the underlying meaning of the numerical components which build a fault
code.
- This is not a comprehensive list, or an alternative to the standard fault diagnostic process and only
serves as a supplemental reference - For a complete reference see SAE documentation regarding Serial Control and Communications
Heavy Duty Vehicle Network Applicable Vehicles
Any - This solution is intended as supplemental reference information to be used in a general context to assist
in troubleshooting.
Where Used
When Fault Code Descriptions do not provide the level of detail needed to diagnose an issue i.e. "too vague".
This may also be useful in cases where multiple codes have identical fault descriptions.
How to Use
For example using slash notation (SA/SPN/FMI)
Fault: 11/1049/3 - Pressure Sensor 1 / Analog input 1
SA - 11 = Brakes - System Controller (ABS)
SPN - 1049 = Brake Pressure Sensing Axle 1
FMI 3 = Voltage above normal, or shorted to high source
In this instance breaking down the code may help explain what's happening behind the scenes and identify the
problem.
1
Source
Address
Address Description
0
Primary Engine Controller (CPC, ECM)
1
Secondary Engine Controller (MCM, ECM #2)
3
Primary Transmission Controller (TCM)
11
Brakes - System Controller (ABS)
17
Cruise Control (IPM, PCC)
18
19
Steering Controller (SAS)
23
Instrument Cluster (ICU, RX)
25
Climate Control #1 (FCU)
33
Body Controller (SSAM, SAM-CAB, BHM)
37
Off Vehicle Gateway (CGW)
42
Headway Controller (RDF, OnGuard)
47
Suspension - System Controller (ECAS)
49
Cab Controller - Primary (MSF, SHM, ECC)
51
Tire Pressure Controller (TPMS)
58
Climate Control #2 (ParkSmart)
61
Exhaust Emission Controller (ACM)
69
Auxiliary Heater (ACU)
71
Chassis Controller (CHM, SAM-Chassis)
74
Communications Unit, Cellular (CTP, VT)
83
Safety Restraint System (Air Bag)
127
Multi-Purpose Camera (MPC)
128
Switch Expansion Module (SEM #1)
139
J1939 - 139
160
J1939 - 160 (OnGuard Display)
184
Trailer #3 Bridge
192
Trailer #2 Bridge
200
Trailer #1 Bridge
209
232
Forward Road Image Processor (VRDU)
236
Door Controller #1 (DCMD)
237
Door Controller #2 (DCMP)
238
Tachograph (TCO)
247
Auxiliary Power Unit (APU)
SPN
SPN Name
16
Engine Fuel Filter Differential Pressure (see also SPN 1382)
18
Engine Fuel Pressure (Extended Range)
19
Engine Oil Pressure (Extended Range)
20
Engine Coolant Pressure 1 (Extended Range)
21
Engine ECU Temperature (use SPN 1136)
22
Engine Extended Crankcase Blow-by Pressure
23
24
Generator Coolant Temperature
27
Engine Exhaust Gas Recirculation 1 Valve Position
28
Accelerator Pedal Position 3
29
Accelerator Pedal Position 2
30
Engine Crankcase Blowby Pressure
31
Transmission Range Position
32
Transmission Splitter Position
33
Clutch Cylinder Position
36
Clutch Plates
37
Transmission Air Tank Pressure
38
Fuel Level 2
39
Tire Pressure Check Interval
46
Pneumatic Supply Pressure
48
Barometric Pressure (Extended Range)
51
Engine Throttle Valve 1 Position 1
52
Engine Intercooler Temperature
53
Transmission Synchronizer Clutch Value
54
Transmission Synchronizer Brake Value
59
Transmission Shift Finger Gear Position
60
Transmission Shift Finger Rail Position
64
Transmission #2 Oil Temperature
69
Two Speed Axle Switch
70
Parking Brake Switch
72
Engine Blower Bypass Valve Position
73
Auxiliary Pump Pressure
74
Maximum Vehicle Speed Limit
75
76
77
Forward Rear Drive Axle Temperature
78
Rear Rear Drive Axle Temperature
79
Road Surface Temperature
80
Washer Fluid Level
81
Aftertreatment 1 Diesel Particulate Filter Intake Pressure (use SPN 3609)
82
Engine Air Start Pressure
84
Wheel-Based Vehicle Speed
86
Cruise Control Set Speed
87
Cruise Control High Set Limit Speed
88
Cruise Control Low Set Limit Speed
90
Power Takeoff Oil Temperature
91
Accelerator Pedal Position 1
92
Engine Percent Load At Current Speed
93
Engine Net Brake Torque
94
Engine Fuel Delivery Pressure
95
Engine Fuel Filter Differential Pressure
96
Fuel Level 1
97
Water In Fuel Indicator 1
98
99
Engine Oil Filter Differential Pressure
100
Engine Oil Pressure
101
Engine Crankcase Pressure 1
102
Engine Intake Manifold #1 Pressure
103
Engine Turbocharger 1 Speed
104
Engine Turbocharger Lube Oil Pressure 1
105
Engine Intake Manifold 1 Temperature
106
107
Engine Air Filter 1 Differential Pressure
108
Barometric Pressure
109
Engine Coolant Pressure 1
110
Engine Coolant Temperature
111
Engine Coolant Level 1
112
Engine Coolant Filter Differential Pressure
113
Engine Governor Droop
114
SLI Battery 1 Net Current
115
Alternator Current
116
Brake Application Pressure
117
Brake Primary Pressure
118
Brake Secondary Pressure
119
Hydraulic Retarder Pressure
120
Hydraulic Retarder Oil Temperature
122
Engine Retarder Percent
123
Clutch Pressure
124
Transmission Oil Level 1
126
Transmission Filter Differential Pressure
127
Transmission Oil Pressure
129
Engine Fuel 1 Injector Metering Rail 2 Pressure (duplicate, use SPN 1349)
130
Engine Power Specific Fuel Economy
131
Engine Exhaust Pressure (duplicate, use SPN 1209)
132
Engine Intake Air Mass Flow Rate
133
Engine Average Fuel Rate
135
Engine Fuel Delivery Pressure (Absolute)
136
Auxiliary Vacuum Pressure Reading
137
Auxiliary Gage Pressure Reading 1
138
Auxiliary Absolute Pressure Reading
141
Trailer, Tag Or Push Channel Tire Pressure Target
142
Drive Channel Tire Pressure Target
143
Steer Channel Tire Pressure Target
144
Trailer, Tag Or Push Channel Tire Pressure
145
Drive Channel Tire Pressure
146
Steer Channel Tire Pressure
147
Engine Average Fuel Economy (Gaseous)
148
Engine Instantaneous Fuel Economy (Gaseous)
149
Engine Mass Flow Rate (Gaseous) - (Obsolete - Use SPN 1241)
152
Number Of ECU Resets
153
Engine Crankcase Pressure (High Resolution)
156
Engine Fuel 1 Injector Timing Rail 1 Pressure
157
Engine Fuel 1 Injector Metering Rail 1 Pressure
158
159
Engine Gaseous Fuel Supply Pressure 1
160
Transmission Intermediate Shaft Speed
161
Transmission Input Shaft Speed
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TSB/Document ID: DOC-1033423
Replacement Service Bulletin Number:
MFR Communication Date: 2018-04-20
MFR Internal Campaign ID/Software Version:
Communication Type: Service Bulletin/Repair Instructions
NHTSA Components: ELECTRICAL SYSTEM
MFR Component System:
MFR Component Subsystem:
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