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07 September, 2025

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Detroit DD13 EPA07 (2007-09) Fault Code: SPN 655 FMI 14 (MCM) Injector Cylinder #5 Needle Control Abnormal Operation

DESCRIPTION:Injector cylinder #5 needle control valve abnormal operation (MAX). MONITORED PARAMETER:Injector cylinder #5 needle control valve. TYPICAL ENABLING CONDITIONS:Engine rpm...

07 September, 2025

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Detroit DD13 EPA07 (2007-09) Fault Code: SPN 656 FMI 14 (MCM) Injector Cylinder #6 Needle Control Valve Abnormal Operation

PROBABLE CAUSES:1. Drain the fuel filter module by removing the fuel filters or opening the drain valve. Hand tighten the...

07 September, 2025

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Detroit DD13 EPA07 (2007-09) Fault Code: SPN 677 FMI 14 (MCM, CPC) Electronic Starter Fault or Motor Control Module Internal Failure

NOTE: Please see the step by step troubleshooting procedures for this specific code. NOTE: If active and engine starts, re-start...

07 September, 2025

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Detroit DD13 EPA07 (2007-09) Fault Code: SPN 677 FMI 18 (MCM, CPC) Starter Relay – Low Resistance

NOTE: Please see the step by step troubleshooting procedures for this specific code. PROBABLE CAUSES:1. Starter relay.2. Starter relay wiring....

07 September, 2025

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Detroit DD13 EPA07 (2007-09) Fault Code: SPN 677 FMI 2 (MCM, CPC) Low or No Voltage for the Starter Switch

NOTE: Please see the step by step troubleshooting procedures for this specific code. PROBABLE CAUSES:1. If 677-2 inactive, clear the...

07 September, 2025

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Detroit DD13 EPA07 (2007-09) Fault Code: SPN 677 FMI 3 (MCM, CPC) Engine Starter Relay Shorted to High Source

NOTE: Please see the step by step troubleshooting procedures for this specific code. PROBABLE CAUSES:1. Starter relay.2. Starter relay wiring....

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