P202D (PCM) - Reductant Leakage
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 P202D (PCM) - REDUCTANT LEAKAGE
| Description: The PCM monitors the reductant pump motor when the selective catalytic reduction (SCR) system is active but the reductant injector is closed. This DTC sets when the PCM must output a duty cycle greater than 50% to the reductant pump motor to maintain system pressure. | |||
Possible Causes:
|
|||
| Diagnostic Aids: | |||
| Application | Key On Engine Off | Key On Engine Running | Continuous Memory |
| All | GO to PINPOINT TEST RK . | ||