Introduction
DTC code P2003 is similar to the more common P2002 code, but refers to a problem with bank 2 of the engine, typically in V6 or V8 engines. This trouble code indicates that the efficiency of the diesel particulate filter (DPF) of bank 2 is below the manufacturer's recommended threshold. When the DPF fails to effectively filter particulate matter from the exhaust, the engine control module (ECM) detects ...
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