Detroit DD15 GHG14 (2014-16) Fault Code: SPN 3251 FMI 1 (ACM) Diesel Particulate Filter Pressure Out of Range Low

DESCRIPTION:
DPF pressure out of range low.

MONITORED PARAMETER:
1. DOC inlet pressure sensor.
2. DPF outlet pressure sensor.

TYPICAL ENABLING CONDITIONS:
Always on

MONITOR SEQUENCE:
None

EXECUTION FREQUENCY:
Continuous when enabling conditions met.

TYPICAL DURATION:
Two seconds

DASH LAMPS:
1. MIL
2. CEL
3. SEL

ENGINE REACTION:
Derate 25%

VERIFICATION:
Run engine between 1500 to 1900 rpm with a load less than 80%.

PROBABLE CAUSES:
1. Inspect DPF outlet pressur ehose for leaks/kinks/plugging.
2. Inspect electrical connections upstream of the MCM (sensor, ATD 10-pin connector, VIH 31-pin connector, MCM 120-pin connector).
3. Remove the DPF and inspect for signs of oil, fuel, or soot contamination. If found, find source.
4. DPF failure.
5. Performed parked regen.

Related

Categories DD15 GHG14 (2014-16), Detroit, DTC TRUCKS Tags 1, 16, 2014, 3251, ACM, Code, DD15, Detroit, Diesel, Fault, Filter, FMI, GHG14, Low, of, Out, Particulate, Pressure, Range, SPN

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