Pinpoint Test MD: Fuel Pressure Sensor
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.
NOTE:
Regeneration may occur during normal operation. During regeneration, diagnostic procedures may display biased values. If a regeneration occurs during diagnostic procedures, allow the process to complete before continuing diagnostics.
Refer to ELECTRONIC ENGINE CONTROLS - 3.0L DIESEL for schematic and connector information.
Normal Operation and Fault Conditions
Refer to the DTC Fault Trigger Conditions.
DTC Fault Trigger Conditions
| DTC | Description | Fault Trigger Condition |
|---|---|---|
| PCM P01C4:00 | Fuel Pressure Sensor "A" Circuit Range/Performance: No Sub Type Information | Sets when the PCM detects the FLP circuit voltage is not within a predicted range. |
| PCM P01C5:00 | Fuel Pressure Sensor "A" Circuit Low: No Sub Type Information | Sets when the PCM detects the FLP circuit voltage is lower than a calibrated threshold. |
| PCM P01C6:00 | Fuel Pressure Sensor "A" Circuit High: No Sub Type Information | Sets when the PCM detects the FLP circuit voltage is higher than a calibrated threshold. |
| PCM P2539:00 | Low Pressure Fuel System Sensor Circuit: No Sub Type Information | Sets when the PCM does not detect a change in the fuel delivery pressure switch PID state after engine shutdown. |
| PCM U0603:00 | Lost Communication With Fuel Pressure Sensor "A": No Sub Type Information | Sets when the PCM no longer receives a signal from the Fuel Pressure and Temperature Sensor. Check for other PCM Diagnostic Trouble Codes (DTCs) or PCM related symptoms. Diagnose all other PCM Diagnostic Trouble Codes (DTCs) or PCM related symptoms first. |
Possible Sources
- Fuel pressure and temperature sensor ciruitry concern
- Fuel pressure and temperature sensor (9G756)
- PCM (12A650)
PINPOINT TESTS MD: FUEL PRESSURE SENSOR AND FUEL DELIVERY PRESSURE SWITCH (Diesel)