Diagnostic Trouble Code (DTC) Chart

2021 Ford Edge SE, 4WDSECTION Diagnostic Trouble Code (DTC) Chart
WARNING: This page is about a different car, the 2021 Ford F-150. However, it is still accessible from the selected car via links, so may be relevant.

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

Diagnostic Trouble Code Chart 

Module DTC Description Action
PCM P0401:00 EGR A Flow Insufficient Detected: No Sub Type Information GO to Pinpoint Test HE 
PCM P0402:00 EGR A Flow Excessive Detected: No Sub Type Information GO to Pinpoint Test HE 
PCM P0404:00 EGR A Control Circuit Range/Performance: No Sub Type Information GO to Pinpoint Test KD 
PCM P0405:00 EGR Sensor A Circuit Low: No Sub Type Information GO to Pinpoint Test KD 
PCM P0406:00 EGR Sensor A Circuit High: No Sub Type Information GO to Pinpoint Test KD 
PCM P041B:00 EGR Temperature Sensor B Circuit Range/Performance: No Sub Type Information GO to Pinpoint Test DS 
PCM P041C:00 EGR Temperature Sensor B Circuit Low: No Sub Type Information GO to Pinpoint Test DS 
PCM P041D:00 EGR Temperature Sensor B Circuit High: No Sub Type Information GO to Pinpoint Test DS 
PCM P044C:00 EGR Sensor C Circuit Low: No Sub Type Information GO to Pinpoint Test HE 
PCM P044D:00 EGR Sensor C Circuit High: No Sub Type Information GO to Pinpoint Test HE 
PCM P0471:00 Exhaust Pressure Sensor A Circuit Range/Performance: No Sub Type Information GO to Pinpoint Test DT 
PCM P0472:00 Exhaust Pressure Sensor A Circuit Low: No Sub Type Information GO to Pinpoint Test DT 
PCM P0473:00 Exhaust Pressure Sensor A Circuit High: No Sub Type Information GO to Pinpoint Test DT 
PCM P04FA:00 EGR A Control Temperature Too High: No Sub Type Information GO to Pinpoint Test KD 
PCM P139A:00 EGR Sensor C Hoses Reversed: No Sub Type Information GO to Pinpoint Test HE 
PCM P139B:00 EGR Sensor C Upstream Hose Off Or Plugged: No Sub Type Information GO to Pinpoint Test HE 
PCM P139C:00 EGR Sensor C Downstream Hose Off Or Plugged: No Sub Type Information GO to Pinpoint Test HE 
PCM P1408:00 EGR Flow Out Of Self Test Range: No Sub Type Information GO to Pinpoint Test HE 
PCM P2457:00 EGR Cooler A Efficiency Below Threshold: No Sub Type Information GO to Pinpoint Test HE 
RENDER: 1.0x

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When to See a Mechanic

Stop DIY work and contact a certified mechanic immediately if any of the following apply:

  • You smell fuel, burning insulation, or see smoke.
  • Brakes feel soft, pull hard to one side, or make grinding noises.
  • The engine overheats, stalls repeatedly, or misfires under load.
  • You are missing required tools, torque specs, or safe lifting equipment.
  • You are not confident in the next step or safety outcome.