P20A3 (DCU) - Reductant Purge Control Valve Circuit High
WARNING: This page does not describe the selected car, but rather 9 other vehicles, including the 2022 Ford F-550 Super Duty, 2022 Ford F-450 Super Duty, 2022 Ford F-350 Super Duty, 2022 Ford F-250 Super Duty, and 2021 Ford F-550 Super Duty. However, it is still accessible from the selected car via links, so may be relevant.
DTC DESCRIPTION P20A3 (DCU) - REDUCTANT PURGE CONTROL VALVE CIRCUIT HIGH
| Description: This DTC sets when the RDPGC circuit voltage is greater than or less than a calibrated limit for a calibrated amount of time. | |||
Possible Causes:
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| Diagnostic Aids: The presence of this DTC may indicate the vehicle is operating in derate mode and may experience a loss of power. After repair, the vehicle may still display a system warning message. Drive the vehicle until the system warning message has cleared from the instrument panel cluster (IPC) message center. | |||
| Application | Key On Engine Off | Key On Engine Running | Continuous Memory |
| All | GO to PINPOINT TEST RE . | ||