Detroit DD15 GHG14 (2014-16) Fault Code: SPN 1761 FMI 17 (ACM) Diesel Exhaust Fluid (DEF) Tank Level 2 Condition – Tank Level Very Low

NOTE: This fault indicates that the DEF tank level is empty. A 25% engine derate is in effect. DEF must be added to the DEF tank (minimum 1/4 tank).