DESCRIPTION:This fault indicates the aftertreatment control module (ACM) has detected a sudden temperature shift on the diesel oxidation catalyst (DOC) outlet temperature sensor.
MONITORED PARAMETER:DOC outlet temperature.
TYPICAL ENABLING CONDITIONS:DOC outlet temperature greater than 150°C (302°F).
DASH LAMPS:1. CEL2. MIL
VERIFICATION:Low temp ATD check.
POSSIBLE CAUSES:1. Wiring concern.2. Poor terminal fit.3. Corrosion.4. Chaffing.
NOTE: If codes 3250-3 or 3250-4 active, fix those first.
PROBABLE CAUSES:1. DOC outlet temperature sensor.2. DOC outlet temperature sensor harness/connector.
Detroit DD13 EPA10 (2010-13) Fault Code: SPN 3250 FMI 4 (ACM) Diesel Oxidation Catalyst Outlet Temperature Circuit Failed Low
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