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Detroit DD15 GHG14 (2014-16) Fault Code: SPN 4258 FMI 3 (MCM) Injector Amplifier Control Valve Cylinder 4, 5, 6 Shorted to Battery

DESCRIPTION:
Injector amplifier control valve cylinder 4, 5, 6 shorted to battery.

MONITORED PARAMETER:
Injector amplifier control valve cylinder 4, 5, 6.

TYPICAL ENABLING CONDITIONS:
Fis_nop_act is greater than 1.85.

MONITOR SEQUENCE:
None

EXECUTION FREQUENCY:
Continuous when enabling conditions met.

TYPICAL DURATION:
Two seconds

DASH LAMPS:
1. MIL
2. CEL

ENGINE REACTION:
Derate 25%

VERIFICATION:
Engine rpm 1400 – 1500: One minute.

PROBABLE CAUSES:
1. Short to power between pin 1 of the rear fuel injector harness 14-pin connector and pin 4 of the 120-pin ECM connection.
2. Short to power between pin 8 of the front fuel injector harness 14-pin connector and pin 8 of the 120-pin ECM connection.
3. Short to power between pin 12 of the front fuel injector harness 14-pin connector and pin 6 of the 120-pin ECM connection.

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