P20BA (DCU) - Reductant Heater A Control Performance
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DTC DESCRIPTION P20BA (DCU) - REDUCTANT HEATER A CONTROL PERFORMANCE
| Description: The reductant dosage control module monitors the conductance of each reductant heater during peak power and compares this conductance to an expected threshold. This DTC sets when the reductant dosage control module detects that the reductant heater conductance is out of tolerance with this threshold. | |||
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 RH . | ||