This code is triggered when there is an unusually high resistance in the circuit of the DEF dosing injector, suggesting an open circuit. Such a condition can lead to insufficient current reaching the injector, thereby impairing its ability to correctly dose DEF.

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This diagnostic trouble code is set when the DEF dosing injector signal falls too low, indicative of a short to ground. This malfunction can disrupt the normal operation of the DEF injector, potentially under-dosing the fluid and affecting NOx reduction.

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This error code indicates that the DEF (Diesel Exhaust Fluid) dosing injector signal is too high, typically due to a short to 12 volts. This fault can lead to incorrect operation of the DEF injector, potentially affecting the dosing process and thus the efficiency of emissions control.

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The ECU has detected an issue with the alternator, indicating that it is not being driven effectively. This could be due to a defective alternator, a worn or broken drive belt, or failure in other belt-driven components.

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This error code is set when the DPF differential pressure is recorded as too high while the engine is off. This unexpected condition might indicate a sensor fault or erroneous readings due to mechanical or electronic issues within the sensor or its circuit.

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This diagnostic trouble code indicates that the DPF (Diesel Particulate Filter) differential pressure signal is unexpectedly low, pointing to a potential short to ground. This fault could lead the ECU to incorrectly assess the DPF condition, potentially underestimating the level of particulate buildup.

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This fault code is generated when the DPF differential pressure sensor signal is unreasonably high, suggesting a potential short to 12 volts. This may cause the sensor to report higher than actual pressures, misleading the ECU about the condition of the DPF.

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This error indicates a problem with the relationship between exhaust flow and differential pressure across the DPF, signaling that the data from the differential pressure sensor does not match expected patterns based on current engine operation and exhaust flow conditions.

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This diagnostic code occurs when the DPF (Diesel Particulate Filter) differential pressure sensor fails to respond or when the ECU identifies a discrepancy between the exhaust flow and the differential pressure across the DPF. This may indicate blockage, sensor failure, or inaccuracies in data processing.

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This code indicates a malfunction in the measurement of the DPF outlet temperature. Issues could arise from sensor failure, wiring problems, or incorrect data processing by the ECU, leading to inaccurate temperature readings.

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This diagnostic code is triggered when the temperature at the outlet of the Diesel Particulate Filter (DPF) exceeds safe operational limits. This could indicate a malfunction within the DPF system, such as excessive soot accumulation, inadequate regeneration, or a failure in the temperature sensors.

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