U040F - Invalid Data Received From Reductant Control Module
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DTC DESCRIPTION U040F - INVALID DATA RECEIVED FROM REDUCTANT CONTROL MODULE
| Description: This DTC sets when the PCM detects an invalid message from the reductant pump control module. | |||
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 cluster message center. | |||
| Application | Key On Engine Off | Key On Engine Running | Continuous Memory |
| All | GO to PINPOINT TEST RG . | ||