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Detroit DD13 EPA10 (2010-13) Fault Code: SPN 4334 FMI 3 (ACM) Diesel Exhaust Fluid Pressure Sensor Circuit Failed High

DESCRIPTION:This code sets when the Aftertreatment Control Module (ACM) detects a short to voltage or open on the Diesel Exhaust Fluid (DEF) Pressure Sensor Circuit.

MONITORED PARAMETER:Diesel exhaust fluid (DEF) pressure sensor.

TYPICAL ENABLING CONDITIONS:Always enabled

MONITOR SEQUENCE:None

EXECUTION FREQUENCY:Always enabled

TYPICAL DURATION:Two seconds

DASH LAMPS:1. MIL2. CEL

ENGINE REACTION:Derate 25%

VERIFICATION:Engine Idle: One minute.

PROBABLE CAUSES:1. DEF pressure sensor.2. DEF pressure sensor connector/harness.

Detroit DD13 EPA10 (2010-13) Fault Code: SPN 4334 FMI 2 (ACM) Diesel Exhaust Fluid Metering Unit Pressure Sensor – Drift
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