56875 Mercruiser CAP, OIL FILLER - ROCKER COVER

Table 1
J1939 Code and Description CDL Code and Description Comments
3031-17
Aftertreatment #1 DEF Tank Temperature : Low - moderate severity (2) E1398 (1)
Low Aftertreatment #1 DEF Tank Temperature #1 The Electronic Control Module (ECM) has detected a failure in the DEF line heating system. The ECM has purged and turned off the DEF pump to protect the pump from freezing. Continue with this troubleshooting story to identify the DEF heater line at fault.
4354-5
Aftertreatment #1 DEF Line Heater #1 : Current Below Normal 3110-5
Aftertreatment #1 DEF Line Heater #1 : Current Below Normal This code indicates