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P246B Code: Step-by-Step Repair

The P246B trouble code is a diagnostic trouble code (DTC) that indicates “Vehicle Conditions Incorrect for Diesel Particulate Filter Regeneration.” This code is primarily associated with diesel engines and relates to the diesel particulate filter (DPF) regeneration process. The DPF is designed to capture and store exhaust soot to reduce emissions. When the vehicle’s conditions …

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