Detroit DD15 EPA07 (2007-09) Fault Code: SPN 3609 FMI 2 (MCM) DPF Inlet Pressure Sensor Failed
NOTE: If any other codes are active, fix those first.
PROBABLE CAUSES:
1. Check all connectors/harnesses upstream of the MCM (DOC inlet temp sensor, ATD harness 10-pin connector, VIH 13-pin connector, MCM 120-pin connector).
2. DOC inlet temperature sensor.
3. DPF inlet pressure hose assy.
4. Perform stationary regen.
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