Make: Detroit
Engine: DD15 GHG17 (2017 & Newer)
PID: N/A
SPN: 521049
FMI: 31
Description: DEF Inducement DEF Lamp Active
Troubleshooting:
DESCRIPTION:
This code sets when there is a code present for the Diesel Exhaust Fluid (DEF) tank level, DEF
dosing unit, DEF Pump, NOx Sensors, blocked DEF line, DEF quality, NOx efficiency, Selective
Catalyst Reduction (SCR) harness and/or SCR sensor.
MONITORED PARAMETER:
SCR and Diesel Particulate Filter (DPF) sensors.
TYPICAL ENABLING CONDITIONS:
Always enabled
MONITOR SEQUENCE:
None
EXECUTION FREQUENCEY:
Always enabled
TYPCIAL DURATION:
2 seconds
DASH LAMPS:
DEF lamp
ENGINE REACTION:
25% derate
VERFICATION:
High idle regeneration followed by a Parked SCR efficiency test.
POSSIBLE CAUSES:
High idle regeneration needed.
Make: Detroit
Engine: DD15 GHG17 (2017 & Newer)
PID: N/A
SPN: 521050
FMI: 14
Description: PTConf Error: No Response from MCM for Request
Troubleshooting:
POSSIBLE CAUSES:
Clear fault with the diagnostic tool.
Page
Make: Detroit
Engine: DD15 GHG17 (2017 & Newer)
PID: N/A
SPN: 521050
FMI: 31
Description: DEF Inducement SEL Lamp Active
Troubleshooting:
DESCRIPTION:
This code sets after SPN 521049/FMI 31 is present and the speed limit has been reduced to
55 mph.
MONITORED PARAMETER:
SCR and Diesel Particulate Filter (DPF) sensors.
TYPICAL ENABLING CONDITIONS:
Always enabled
MONITOR SEQUENCE:
None
EXECUTION FREQUENCEY:
Always enabled
TYPCIAL DURATION:
Two seconds
DASH LAMPS:
SEL lamp
ENGINE REACTION:
40% derate, vehicle speed limited to five mph.
VERFICATION:
High idle regeneration followed by a Parked SCR efficiency test.
POSSIBLE CAUSES:
High idle regeneration needed.
Make: Detroit
Engine: DD15 GHG17 (2017 & Newer)
PID: N/A
SPN: 521052
FMI: 31
Description: DEF Inducement CEL Lamp Active
Troubleshooting:
DESCRIPTION:
This code sets when SPN 521050/FMI 31 has been present for one hour of idle time, the
vehicle has been restarted or six gallons of fuel has been used.
MONITORED PARAMETER:
SCR and Diesel Particulate Filter (DPF) sensors.
TYPICAL ENABLING CONDITIONS:
Always enabled
MONITOR SEQUENCE:
None
EXECUTION FREQUENCEY:
Always enabled
TYPCIAL DURATION:
Two seconds
DASH LAMPS:
CEL lamp
ENGINE REACTION:
55 mph speed limit, progressive derate from 25% to 40%.
VERFICATION:
High idle regeneration followed by a Parked SCR efficiency test.
POSSIBLE CAUSES:
High idle regeneration needed.