Detroit Diesel
Detroit DD16 GHG14 (2014-16) Fault Code: SPN 4374 FMI 19 (ACM) Diesel Exhaust Fluid System is Not Being Controller as Expected
Posted by PerDiezel Solutions on
DESCRIPTION:DEF system is not being controlled as expected. MONITORED PARAMETER:1. DEF pump speed.2. Pump duty cycle. TYPICAL ENABLING CONDITIONS:1. DEF pump operation is above.2. Below defined thresholds. MONITOR SEQUENCE:None EXECUTION FREQUENCY:Continuous when enabling conditions met. TYPICAL DURATION:2 minutes DASH LAMPS:1. MIL2. CEL ENGINE REACTION:Derate 25% VERIFICATION:SCR ADS Self-Check. NOTE: If any other codes active, fix those first. PROBABLE CAUSES:1. Inspect the DEF pump connector/harness.2. DEF pump failure.
Detroit DD16 GHG14 (2014-16) Fault Code: SPN 4374 FMI 3 (ACM) Diesel Exhaust Fluid (DEF) Pump Speed Signal Above Measurement Range
Posted by PerDiezel Solutions on
DESCRIPTION:DEF pump speed signal above measurement range. MONITORED PARAMETER:DEF pump speed frequency. TYPICAL ENABLING CONDITIONS:1. DEF pump enabled.2. On-Off-Cycle request. EXECUTION FREQUENCY:Continuous when enabling conditions met. TYPICAL DURATION:2 minutes DASH LAMPS:1. MIL2. CEL ENGINE REACTION:Derate 10% VERIFICATION:SCR ADS Self-Check. NOTE: If any other codes active, fix those first. PROBABLE CAUSES:1. Inspect the DEF pump connector/harness.2. DEF pump failure.3. ACM (Aftertreament Control Module ECM) failure.
Detroit DD16 GHG14 (2014-16) Fault Code: SPN 4374 FMI 4 (ACM) Diesel Exhaust Fluid (DEF) Pump Speed Signal Below Measurement Range
Posted by PerDiezel Solutions on
DESCRIPTION:DEF pump speed signal below measurement range. MONITORED PARAMETER:DEF pump speed vs. DEF Pressure. TYPICAL ENABLING CONDITIONS:1. DEF pump enabled.2. On-Off-Cycle request. EXECUTION FREQUENCY:Continuous when enabling conditions met. TYPICAL DURATION:2 minutes DASH LAMPS:1. MIL2. CEL ENGINE REACTION:Derate 10% VERIFICATION:SCR ADS Self-Check. NOTE: If any other codes active, fix those first. PROBABLE CAUSES:1. Inspect the DEF pump connector/harness.2. DEF pump failure.3. ACM (Aftertreament Control Module ECM) failure.
Detroit DD16 GHG14 (2014-16) Fault Code: SPN 4375 FMI 3 (ACM) Diesel Exhaust Fluid Pump Circuit Failed High
Posted by PerDiezel Solutions on
DESCRIPTION:Diesel Exhaust Fluid (DEF) pump circuit failed high. MONITORED PARAMETER:DEF pump TYPICAL ENABLING CONDITIONS:DEF pump on. MONITOR SEQUENCE:None EXECUTION FREQUENCY:Continuous when enabling conditions met. TYPICAL DURATION:2 seconds DASH LAMPS:1. MIL2. CEL ENGINE REACTION:Derate 25% VERIFICATION:SCR ADS Self-Check. PROBABLE CAUSES:1. DEF pump harness connector/wiring.2. DEF pump failure.
Detroit DD16 GHG14 (2014-16) Fault Code: SPN 4375 FMI 4 (ACM) Diesel Exhaust Fluid Pump Circuit Failed Low
Posted by PerDiezel Solutions on
DESCRIPTION:Diesel Exhaust Fluid (DEF) pump circuit failed low. MONITORED PARAMETER:DEF pump TYPICAL ENABLING CONDITIONS:Ignition on MONITOR SEQUENCE:None EXECUTION FREQUENCY:Continuous when enabling conditions met. TYPICAL DURATION:Two seconds DASH LAMPS:1. MIL2. CEL ENGINE REACTION:Derate 25% VERIFICATION:SCR ADS self check. PROBABLE CAUSES:1. DEF pump harness connector/wiring.2. DEF pump failure.
