Updated: 2026-11-10
The database covers 1057 dealer codes — Deutz uses its own factory format, outside the J1939 SPN/FMI standard. A few examples below; look up your own code in the search on the homepage, where you can also pick “Deutz” from the brand list.
Deutz has a dealer table: 1057 codes. The most common areas are the exhaust and AdBlue system (SCR), fuel and intake air. Codes such as 100.0 and 100.1 look like SPN and FMI, but the Deutz table has its own scheme, so take the meaning from the description. For example, 100.0 is critical overpressure of the engine oil.
Start with these codes:
| 27.11 | EGR actuator position - root cause not known |
| 102.30 | Intake manifold pressure sensor - Short circuit to ground or open circuit |
| 175.0 | Engine oil - Critical overtemperature; EMR3: Oil temperature - Above target range, with system reaction. Blink code: 1-4-4. SERDIA code: 203. |
| 653.11 | EMR3: Single injector - Short circuit (injector 3). FMI 11: root cause not known. Blink code: 1-5-6. SERDIA code: 163. |
| 730.5 | EMR3: Air heater solenoid valve - Open circuit or short circuit. FMI 5: current below normal or open circuit. Blink code: 2-6-3. SERDIA code: 18. |
| 1323.12 | EMR3: Cylinder 1 - Misfire detected (cylinder 1). FMI 12: faulty device or component. Blink code: 2-4-1. SERDIA code: 38. |
| 3031.2 | DEF tank (temperature sensor) - Plausibility error |
| 4334.2 | SCR system (DEF pressure sensor) - Plausibility error |
| 4812.11 | Engine Piston Cooling Oil Supply Valve - Electrical error |
| 516098.14 | Accelerator pedal sensor 2 (current) - Ground error |
| 516201.11 | NH3 sensor - Resistance error |
| 516408.31 | Injector 8 - Voltage Based Small quantity injection correction failed |
| 516572.3 | Multiselector Switch - Short circuit to battery |
| 516819.31 | Speed sensors - Phase angle difference too high |
| 523450.11 | EMR3: Multi-state switch - Open circuit or short circuit, input voltage out of target range (switch 1). FMI 11: root cause not known. Blink code: 1-4-3. SERDIA code: 189. |
Deutz engines power construction machines, farm tractors, forklifts, generator sets and some buses far more often than long-haul tractors, so many of these codes come from the machine's own display rather than a truck dashboard. The engine computer (EMR, Electronic Motor Regelung) stores faults in two forms: J1939 style SPN.FMI separated by a dot, and Deutz-specific numbers above 516000. The manufacturer reads them with its SerDia diagnostic software.
The difference matters when reading: 100.0 is the standard SPN 100 (engine oil pressure) with FMI 0, while 516408.31 is an internal Deutz number that does not exist in the J1939 tables.
FMI meanings follow SAE J1939-73; the tables above give the factory wording of each Deutz entry.
Entries for critical oil pressure or oil temperature (100.0, 175.0) mean stop the engine. Sensor-circuit codes (FMI 3, 4, 5, 6) do not endanger the engine directly, but protection based on that parameter no longer works, so watch the gauges. If the engine hesitates, loses power or a red lamp comes on, stop.
It is a Deutz-specific number, not in J1939. Read the description on this page and confirm it in the manual for your engine.
No. The page lists it as critical oil pressure. Stop, check the oil level and measure the pressure with a gauge.
First check the reagent quality, the tank and the connector; replace the sensor only if those are fine.
Know the code number? Type it into the search — or paste the whole list from the scanner and we will show which fault is the real one.