Scania Diesel Fault Codes
26 Scania diagnostic pages, grouped by the system the code belongs to. Each page covers symptoms, the tests to run in order, tools needed, and realistic parts and labor cost ranges.
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Aftertreatment (9)
- SPN 3251 FMI 16 — DPF Differential Pressure Sensor
- SPN 3363 FMI 1 — DEF Tank Heater
- SPN 3364 FMI 3 — DEF Dosing Unit
- SPN 3364 FMI 9 — DEF Quality Sensor
- SPN 4094 FMI 16 — DPF Soot Load
- SPN 4358 FMI 3 — SCR Catalyst Exhaust Differential Pressure
- SPN 4364 FMI 18 — SCR NOx Conversion Efficiency
- SPN 4766 FMI 3 — DOC Outlet Gas Temperature Sensor
- SPN 5246 FMI 31 — SCR Operator Inducement
Fuel (5)
Air/Turbo (4)
Coolant (1)
Sensors/Other (7)
- SPN 100 FMI 1 — Engine Oil Pressure Sensor
- SPN 168 FMI 1 — Battery / ECU Power Supply Voltage
- SPN 171 FMI 3 — Ambient Air Temperature Sensor
- SPN 190 FMI 0 — Engine Speed Sensor Circuit
- SPN 512 FMI 3 — Driver Demand Percent Torque
- SPN 1231 FMI 9 — J1939 Network #2 Communication Circuit
- SPN 3031 FMI 10 — EGR Valve