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Diagnostic Trouble Code (DTC) Chart

Diagnostics in this service information assume a certain skill level and knowledge of Ford-specific diagnostic practices. REFER to: Diagnostic Methods .

Module DTC Description Action
PCM P0420 Catalyst System Efficiency Below Threshold (Bank 1) GO to Pinpoint Test HF 
PCM P0420:00 Catalyst System Efficiency Below Threshold (Bank 1): No Sub Type Information GO to Pinpoint Test HF 
PCM P0430 Catalyst System Efficiency Below Threshold (Bank 2) GO to Pinpoint Test HF 
PCM P0430:00 Catalyst System Efficiency Below Threshold (Bank 2): No Sub Type Information GO to Pinpoint Test HF