Detroit DD15 GHG14 (2014-16) Fault Code: SPN 3056 FMI 2 (ACM) Selective Catalyst Reduction Inlet NOx Sensor – Error
DESCRIPTION:
Selective catalyst reduction (SCR) inlet NOx sensor – Error.
MONITORED PARAMETER:
SCR inlet NOx.
TYPICAL ENABLING CONDITIONS:
1. 1000-1800 rpm.
2. 35-100% load.
3. Steady cruise.
MONITOR SEQUENCE:
None
EXECUTION FREQUENCY:
Continuous when enabling conditions met.
TYPICAL DURATION:
Eight minutes
DASH LAMPS:
MIL
VERIFICATION:
1. 1000-1800 rpm.
2. 35-100% load.
3. Steady cruise.
4. Eight minutes.
NOTE: If codes 5357-16 or 5357-18 present, fix those first.
PROBABLE CAUSES:
1. Perform a stationary regen.
2. SCR inlet NOx sensor.
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