Detroit DD15 GHG14 (2014-16) Fault Code: SPN 4257 FMI 3 (MCM) Injector Amplifier Control Valve Cylinder 1, 2, 3 Shorted to Battery
DESCRIPTION:
Injector amplifier control valve cylinder 1, 2, 3 shorted to battery.
MONITORED PARAMETER:
Injector amplifier control valve cylinder 1, 2, 3.
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 2 of the front fuel injector harness 14-pin connector and pin 4 of the 120-pin ECM connection.
2. Short to power between pin 4 of the front fuel injector harness 14-pin connector and pin 4 of the 120-pin ECM connection.
3. Short to power between pin 22 of the front fuel injector harness 14-pin connector and pin 6 of the 120-pin ECM connection.
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