Detroit Diesel

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22 November, 2025

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Detroit DD15 GHG14 (2014-16) Fault Code: SPN 1121 FMI 13 (CPC) Service Brake Switch Signal from EBC1 is Missing or Not Available

NOTE: Please see the step by step troubleshooting procedures for this specific code. NOTE: If codes 168-0, 168-14, or 168-18...

22 November, 2025

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Detroit DD15 GHG14 (2014-16) Fault Code: SPN 1121 FMI 19 (CPC) Service Brake Switch Signal from EBC1 is Erratic

NOTE: Please see the step by step troubleshooting procedures for this specific code. NOTE: If codes 168-0, 168-14, or 168-18...

22 November, 2025

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Detroit DD15 GHG14 (2014-16) Fault Code: SPN 1127 FMI 10 (MCM) Slow Boost Response

NOTE: Please see the step by step troubleshooting procedures for this specific code. PROBABLE CAUSES:1. Air intake system leaks.2. Air...

22 November, 2025

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Detroit DD15 GHG14 (2014-16) Fault Code: SPN 1172 FMI 2 (MCM) Coolant Temperature/Compressor Inlet Temperature Plausibility Error

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

22 November, 2025

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Detroit DD15 GHG14 (2014-16) Fault Code: SPN 1172 FMI 3 (MCM) Turbocharger Compressor Inlet Temperature Circuit Failed High

DESCRIPTION:This fault code sets when there is a short to power or an open in the turbocharger compressor inlet temperature...

22 November, 2025

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Detroit DD15 GHG14 (2014-16) Fault Code: SPN 1172 FMI 4 (MCM) Turbocharger Compressor Inlet Temperature Circuit Failed Low

DESCRIPTION:This fault code sets when there is a short to ground in the turbocharger compressor inlet temperature circuit. MONITORED PARAMETER:Turbocharger...

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