SS 1033423 : J-1939 Fault Code Source Address (SA ...

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

0 1 3 11 17 18 19 23 25 33 37 42 47 49 51 58 61 69 71 74 83 127 128 139 160 184 192 200 209 232 236 237 238 247

Address Description

Primary Engine Controller (CPC, ECM) Secondary Engine Controller (MCM, ECM #2)

Primary Transmission Controller (TCM) Brakes - System Controller (ABS) Cruise Control (IPM, PCC) Fuel System (CNG Controller) Steering Controller (SAS) Instrument Cluster (ICU, RX) Climate Control #1 (FCU)

Body Controller (SSAM, SAM-CAB, BHM) Off Vehicle Gateway (CGW)

Headway Controller (RDF, OnGuard) Suspension - System Controller (ECAS) Cab Controller - Primary (MSF, SHM, ECC)

Tire Pressure Controller (TPMS) Climate Control #2 (ParkSmart) Exhaust Emission Controller (ACM)

Auxiliary Heater (ACU) Chassis Controller (CHM, SAM-Chassis) Communications Unit, Cellular (CTP, VT)

Safety Restraint System (Air Bag) Multi-Purpose Camera (MPC)

Switch Expansion Module (SEM #1) J1939 - 139

J1939 - 160 (OnGuard Display) Trailer #3 Bridge Trailer #2 Bridge Trailer #1 Bridge

J1939 - 209 (Bendix Camera) Forward Road Image Processor (VRDU)

Door Controller #1 (DCMD) Door Controller #2 (DCMP)

Tachograph (TCO) Auxiliary Power Unit (APU)

SPN 16 18 19 20 21 22 23 24 27 28 29 30 31 32 33 36 37 38 39 46 48 51 52 53 54 59 60 64 69 70 72 73 74 75 76 77 78 79 80 81 82 84 86

SPN Name Engine Fuel Filter Differential Pressure (see also SPN 1382)

Engine Fuel Pressure (Extended Range) Engine Oil Pressure (Extended Range) Engine Coolant Pressure 1 (Extended Range) Engine ECU Temperature (use SPN 1136) Engine Extended Crankcase Blow-by Pressure

Generator Oil Pressure Generator Coolant Temperature Engine Exhaust Gas Recirculation 1 Valve Position

Accelerator Pedal Position 3 Accelerator Pedal Position 2 Engine Crankcase Blowby Pressure Transmission Range Position Transmission Splitter Position

Clutch Cylinder Position Clutch Plates

Transmission Air Tank Pressure Fuel Level 2

Tire Pressure Check Interval Pneumatic Supply Pressure Barometric Pressure (Extended Range) Engine Throttle Valve 1 Position 1 Engine Intercooler Temperature Transmission Synchronizer Clutch Value Transmission Synchronizer Brake Value Transmission Shift Finger Gear Position Transmission Shift Finger Rail Position Transmission #2 Oil Temperature

Two Speed Axle Switch Parking Brake Switch Engine Blower Bypass Valve Position Auxiliary Pump Pressure Maximum Vehicle Speed Limit Steering Axle Temperature Axle Lift Air Pressure Forward Rear Drive Axle Temperature Rear Rear Drive Axle Temperature Road Surface Temperature Washer Fluid Level Aftertreatment 1 Diesel Particulate Filter Intake Pressure (use SPN 3609) Engine Air Start Pressure Wheel-Based Vehicle Speed 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

Engine Oil Level

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

Engine Intake Air Pressure

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

Key Switch Battery Potential

159

Engine Gaseous Fuel Supply Pressure 1

160

Transmission Intermediate Shaft Speed

161

Transmission Input Shaft Speed

162

Transmission Requested Range

163

Transmission Current Range

164

Engine Fuel Injection Control Pressure

165

Compass Bearing

166

Engine Rated Power

167

Charging System Potential (Voltage)

168

Battery Potential / Power Input 1

169

Cargo Ambient Temperature

170

Cab Interior Temperature

171

Ambient Air Temperature

172

Engine Intake 1 Air Temperature

173

Engine Exhaust Temperature

174

Engine Fuel 1 Temperature 1

175

Engine Oil Temperature 1

176

Engine Turbocharger 1 Oil Temperature

177

Transmission Oil Temperature 1

178

Front Axle Weight

179

Rear Axle Weight

180

Trailer Weight

181

Cargo Weight

182

Engine Trip Fuel

183

Engine Fuel Rate

184

Engine Instantaneous Fuel Economy

185

Engine Average Fuel Economy

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