P056D

2017-10-10

Description:

  • Reductant Control Module System Voltage

Possible Symptoms:

  • Check the battery voltage and ensure it is within the specified range for the reductant control module.

  • Inspect the wiring and connections of the reductant control module system to identify any loose or damaged components.

  • Reset the reductant control module system by disconnecting the battery for a few minutes and then reconnecting it.

  • Perform a software update or reprogramming for the reductant control module system to ensure it is running with the latest version.

  • Replace the reductant control module if all other solutions fail to resolve the issue.

Possible Causes:

  • Malfunctioning Reductant Control Module (RCM)

  • Low voltage in the Reductant Control Module system

  • Faulty wiring or connections in the Reductant Control Module system

  • Sensor issues related to the Reductant Control Module system

  • Software glitch or error in the Reductant Control Module system

Related Parts:

Possible Solutions:

  • Check engine light illuminates on the dashboard

  • Decreased engine performance and power

  • Poor fuel efficiency

  • Difficulty starting or stalling

  • Unusual exhaust odor or smoke

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