DEF TANK <5% REFILL DEF
UnclassifiedEmissions
What This Code Means
DEF symbol is ON; Pre-Alarm Lamp is ON; DEF symbol is slow blinking; DEF symbol is blinking; Shutdown Lamp is ON; Engine shutdown (emergency shutdown); DEF symbol is displayed
Possible Causes
- •DEF tank level is below 10%
- •DEF tank level is below 5%
- •DEF level has reached 0%
- •DEF quality is poor
Suggested Actions
- 1Refill DEF
- 2Check DEF tank level
- 3Activate ESCAPE MODE to run the unit for 30 minutes
- 4Check active diagnostic trouble codes (DTC)
Related Multiquip Fault Codes
ASK RUDY ABOUT THIS FAULT
Get a diagnosis walkthrough for DEF TANK <5% REFILL DEF on your specific Multiquip unit — cited to the OEM manual, not a forum guess.
GET THE ANSWER
Free account required — we'll bring your question with you.