Detroit Diesel

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22 November, 2025

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Detroit DD15 GHG14 (2014-16) Fault Code: SPN 3031 FMI 19 (ACM) Diesel Exhaust Fluid Tank Temperature Signal Erratic via Controller Area Network

NOTE: Please see the step by step troubleshooting procedures for this specific code. NOTE: If the ACM (Computer module) has...

22 November, 2025

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Detroit DD15 GHG14 (2014-16) Fault Code: SPN 3031 FMI 3 (ACM) Diesel Exhaust Fluid Tank Temperature Sensor Circuit Failed High

DESCRIPTION:Diesel exhaust fluid (DEF) tank temperature sensor circuit failed high. MONITORED PARAMETER:DEF tank temperature sensor. TYPICAL ENABLING CONDITIONS:Always enabled MONITOR...

22 November, 2025

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Detroit DD15 GHG14 (2014-16) Fault Code: SPN 3031 FMI 4 (ACM) Diesel Exhaust Fluid Tank Temperature Sensor Circuit Failed Low

DESCRIPTION:Diesel exhaust fluid (DEF) tank temperature sensor circuit failed low. MONITORED PARAMETER:DEF tank temperature sensor. TYPICAL ENABLING CONDITIONS:Always enabled MONITOR...

22 November, 2025

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Detroit DD15 GHG14 (2014-16) Fault Code: SPN 3031 FMI 9 (ACM) Diesel Exhaust Fluid Tank Temperature Signal Not Available via Controller Area Network

NOTE: Please see the step by step troubleshooting procedures for this specific code. NOTE: If the ACM (Computer module) has...

22 November, 2025

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Detroit DD15 GHG14 (2014-16) Fault Code: SPN 3056 FMI 2 (ACM) Selective Catalyst Reduction Inlet NOx Sensor – Error

DESCRIPTION:Selective catalyst reduction (SCR) inlet NOx sensor – Error. MONITORED PARAMETER:SCR inlet NOx. TYPICAL ENABLING CONDITIONS:1. 1000-1800 rpm.2. 35-100% load.3....

22 November, 2025

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Detroit DD15 GHG14 (2014-16) Fault Code: SPN 3057 FMI 2 (ACM) Selective Catalyst Reduction Inlet NOx Sensor – Error

DESCRIPTION:Selective catalyst reduction (SCR) inlet NOx sensor – Error. MONITORED PARAMETER:SCR inlet NOx. TYPICAL ENABLING CONDITIONS:1. 1000-1800 rpm.2. 35-100% load.3....

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Detroit Diesel