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 |