Detroit Diesel
Detroit DD16 GHG14 (2014-16) Fault Code: SPN 4375 FMI 5 (ACM) Diesel Exhaust Fluid Pump Circuit Failed Open
Posted by PerDiezel Solutions on
DESCRIPTION:Diesel Exhaust Fluid (DEF) pump circuit failed open. 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.
Detroit DD16 GHG14 (2014-16) Fault Code: SPN 4752 FMI 0 (MCM) Exhaust Gas Recirculation Cooler Low Efficiency
Posted by PerDiezel Solutions on
DESCRIPTION:Exhaust Gas Recirculation (EGR) cooler performance monitor. MONITORED PARAMETER:Intake manifold temperature sensors. TYPICAL ENABLING CONDITIONS:1. Engine running greater than five minutes.2. EGR mass flow greater than .08.3. Intake manifold temperature less than 125°C (257°F).4. Engine speed 1200-2500 RPM.5. Engine torque 500-2500 N·m.6. Coolant temperature greater than 65°C (149°F).7. Ambient temperature less than 45°C (113°F) ambient.8. Barometric pressure greater than 755 mbar (10.95 psi). MONITOR SEQUENCE:None EXECUTION FREQUENCY:Always enabled TYPICAL DURATION:30 Seconds DASH LAMPS:1. MIL2. CEL ENGINE REACTION:Derate 10% VERIFICATION:1. When ambient temperature less than 45°C (113°F).2. Start engine.3. Warm up so coolant temperature greater than 65°C (149°F).4. Ambient barometric pressure...
Detroit DD16 GHG14 (2014-16) Fault Code: SPN 4752 FMI 15 (MCM) Exhaust Gas Recirculation Cooler Performance Monitor
Posted by PerDiezel Solutions on
DESCRIPTION:Exhaust Gas Recirculation (EGR) cooler performance monitor. MONITORED PARAMETER:Intake manifold temperature sensor. TYPICAL ENABLING CONDITIONS:1. Engine running greater than five minutes.2. EGR mass flow greater than .08.3. Intake manifold temperature less than 125°C (257°F).4. Engine speed 1200-2500 RPM.5. Engine torque 500-2500 N·m.6. Coolant temperature greater than 65°C (149°F).7. Ambient temperature less than 45°C (113°F) ambient.8. Barometric pressure greater than 755 mbar (10.95 psi). MONITOR SEQUENCE:None EXECUTION FREQUENCY:Always enabled TYPICAL DURATION:30 DASH LAMPS:1. MIL ENGINE REACTION:None VERIFICATION:1.When ambient temperature less than 45°C (113°F).2. Start engine.3. Warm up so coolant temperature greater than 65°C (149°F).4. Ambient barometric pressure greater than 755 mbar...
Detroit DD16 GHG14 (2014-16) Fault Code: SPN 4765 FMI 0 (MCM) Exhaust Temperature High
Posted by PerDiezel Solutions on
DESCRIPTION:Exhaust temperature high. MONITORED PARAMETER:Exhaust temperature. TYPICAL ENABLING CONDITIONS:Always on MONITOR SEQUENCE:None EXECUTION FREQUENCY:Continuous when enabling conditions met. TYPICAL DURATION:2 seconds DASH LAMPS:CEL ENGINE REACTION:Derate 25% NOTE: If any other codes are active, fix those first. PROBABLE CAUSES:1. DOC outlet temperature sensor.2. DOC outlet temperature sensor connector/harness.3. Failed injector/cylinder.4. Remove DPF & inspect. If plugged or has residue on face from contamination, clean or replace.5. Perform parked regen.
Detroit DD16 GHG14 (2014-16) Fault Code: SPN 4795 FMI 31 (ACM) Diesel Particulate Filter Outlet Temperature Response – Too Fast
Posted by PerDiezel Solutions on
NOTE: This fault indicates the Aftertreatment Control Module (ACM) has detected a sudden temperature shift on the Diesel Particulate Filter (DPF) outlet temperature sensor. The most likely cause is an intermittent wiring concern (poor terminal fit, corrosion, chaffing, etc.). NOTE: Please see the step by step troubleshooting procedures for this specific code. NOTE: If 3246-3 or 3246-4 are active, fix those first. PROBABLE CAUSES:1. Check all wiring and connectors for the DPF outlet temperature sensor.2. DPF outlet temperature sensor.3. Inspect all harnesses and connectors between the DPF outlet temperature sensor and the ACM (Aftertreament Control Module).
