Detroit Diesel

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22 November, 2025

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Detroit DD15 GHG14 (2014-16) Fault Code: SPN 3236 FMI 9 (ACM) Exhaust Mass Signal Not Available via Controller Area Network

NOTE: Please see the step by step troubleshooting procedures for this specific code. NOTE: If any engine ECMs have been...

22 November, 2025

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Detroit DD15 GHG14 (2014-16) Fault Code: SPN 3238 FMI 2 (ACM) Selective Catalyst Reduction Outlet NOx Sensor Failure to Activate

NOTE: Please see the step by step troubleshooting procedures for this specific code. NOTE: If codes 5357-16 or 5357-18 present,...

22 November, 2025

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Detroit DD15 GHG14 (2014-16) Fault Code: SPN 3242 FMI 17 (ACM) Diesel Oxidation Catalyst Inlet Temperature Out of Range Low Preventing HC Dosing

NOTE: Please see the step by step troubleshooting procedures for this specific code. PROBABLE CAUSES:1. DOC inlet temperature sensor.2. DOC...

22 November, 2025

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Detroit DD15 GHG14 (2014-16) Fault Code: SPN 3242 FMI 20 (ACM) Diesel Oxidation Catalyst Temperature Drift – Inlet High or Outlet Low

DESCRIPTION:70°C (126°F) difference during non-regeneration mode. MONITORED PARAMETER:Diesel oxidation catalyst (DOC) inlet temperature vs. DOC outlet temperature. TYPICAL ENABLING CONDITIONS:1....

22 November, 2025

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Detroit DD15 GHG14 (2014-16) Fault Code: SPN 3242 FMI 3 (ACM) Diesel Oxidation Catalyst Inlet Temperature Sensor Circuit Failed High

POSSIBLE CAUSES:1. Bent pins.2. Spread pins.3. Corroded pins.4. Damaged connector.5. Faulty DOC inlet temperature sensor.6. Faulty wiring. Detroit DD15 GHG14...

22 November, 2025

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Detroit DD15 GHG14 (2014-16) Fault Code: SPN 3242 FMI 4 (ACM) Diesel Oxidation Catalyst Inlet Temperature Sensor Failed Low

NOTE: Please see the step by step troubleshooting procedures for this specific code. PROBABLE CAUSES:1. DOC inlet temperature sensor.2. DOC...

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Detroit Diesel