DEF FLUID LOW PA

UnclassifiedEmissions

What This Code Means

DEF indicator displayed on digital controller; Controller displays 'DEF Fluid Low PA' message; Engine shutdown; Engine will not restart; Controller displays 'LOW DEF SHUTDOWN' message; DEF indicator displayed next to a diagnostic message; DEF Indicator is ON; Alarm Lamp is flashing; Controller displays 'DEF Severe Inducmt' message; Alarm Lamp is ON; Unit can only run at low idle; Unit enters emergency shutdown

Possible Causes

  • DEF tank level is below 10%
  • DEF tank level falls to 5% or below
  • DEF quality is poor
  • DEF level is below 20%
  • DEF level is below 10%
  • DEF level has remained below 10% for 30 minutes

Suggested Actions

  1. 1Check the DEF tank level
  2. 2Replenish DEF fluid
  3. 3Replenish DEF to 10% or more
  4. 4Check active diagnostic trouble codes (DTC)

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Get a diagnosis walkthrough for DEF FLUID LOW PA on your specific Multiquip unit — cited to the OEM manual, not a forum guess.

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