Detroit Diesel

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22 November, 2025

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Detroit DD15 GHG14 (2014-16) Fault Code: SPN 3251 FMI 0 (ACM) Diesel Particulate Filter Pressure Out of Range Very High

DESCRIPTION:This fault code sets when the Diesel Oxidation Catalyst (DOC) Inlet Pressure is 35 kPa (5 psi) greater than the...

22 November, 2025

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Detroit DD15 GHG14 (2014-16) Fault Code: SPN 3251 FMI 1 (ACM) Diesel Particulate Filter Pressure Out of Range Low

DESCRIPTION:DPF pressure out of range low. MONITORED PARAMETER:1. DOC inlet pressure sensor.2. DPF outlet pressure sensor. TYPICAL ENABLING CONDITIONS:Always on...

22 November, 2025

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Detroit DD15 GHG14 (2014-16) Fault Code: SPN 3251 FMI 16 (ACM) Diesel Particulate Filter Pressure Out of Range High

DESCRIPTION:This fault code sets when the diesel oxidation catalyst (DOC) inlet pressure is 28 kPa (4.2 psi) greater than the...

22 November, 2025

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Detroit DD15 GHG14 (2014-16) Fault Code: SPN 3251 FMI 20 (ACM) Diesel Oxidation Catalyst Inlet Pressure – Not Plausible

DESCRIPTION:Diesel oxidation catalyst (DOC) inlet pressure sensor – not plausible. MONITORED PARAMETER:Exhaust pressure TYPICAL ENABLING CONDITIONS:Always on MONITOR SEQUENCE:None EXECUTION...

22 November, 2025

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Detroit DD15 GHG14 (2014-16) Fault Code: SPN 3251 FMI 21 (ACM) Diesel Oxidation Catalyst Inlet/Outlet Pressure – Not Plausible

DESCRIPTION:Diesel oxidation catalyst (DOC) inlet /outlet pressure not plausible. MONITORED PARAMETER:Exhaust pressure TYPICAL ENABLING CONDITIONS:Always on MONITOR SEQUENCE:None EXECUTION FREQUENCY:Continuous...

22 November, 2025

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Detroit DD15 GHG14 (2014-16) Fault Code: SPN 3361 FMI 3 (ACM) Diesel Exhaust Fluid Dosing Valve Circuit Failed High

DESCRIPTION:Diesel exhaust fluid (DEF) system circuit voltage above normal, or shorted to high source. MONITORED PARAMETER:DEF dosing unit voltage. TYPICAL...

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Detroit Diesel