The MIL is on and/or glow plug light on. DTCs are stored in the ECM. No relevant component or electrical problems are found when Guided Fault Finding (GFF) is run on the stored fault codes. Cars exhibiting the issue outlined in this TSB will also show a pattern in the DTC expanded ambient conditions under the P200200 fault code. Soot mass measured value above 40 g. Soot mass calculated value approximately 30 g. Kilometers since last regeneration value are above 500,000 m. The current ECM software does not accurately detect a momentary rise in DPF backpressure, resulting in a soot overload fault.
