P202D (DCU) - Reductant Leakage
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DTC DESCRIPTION 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 . | ||