Safety Warning
DIY auto repair can cause serious injury, fire, or vehicle damage. These guides are for informational purposes only. Always follow OEM torque specs, wear PPE, and consult a certified mechanic if you are unsure. You are solely responsible for your safety.
DTC P202D (DCU) - REDUCTANT Leakage
2021 Ford Edge SE, 4WDSECTION DTC P202D (DCU) - REDUCTANT Leakage
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P202D (DCU) - REDUCTANT LEAKAGE
| Description: | The reductant dosage control module 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 reductant dosage control module must output a duty cycle greater than 50% to the reductant pump motor to maintain system pressure. | ||
| Possible Causes: |
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| Diagnostic Aids: | |||
| Application | Key On Engine Off | Key On Engine Running | Continuous Memory |
| All | GO to PINPOINT TEST RK . | ||
RENDER: 1.0x
NO RELATED
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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.