Detroit DD15 EPA07 (2007-09) Fault Code: SPN 4258 FMI 3 (MCM) Injector Amplifier Control Valve Cylinder 1, 2, 3 Shorted to Battery

DESCRIPTION:
This code sets when the MCM detects that there is a short to power on the circuits for the injector amplifier control valve on cylinders 1, 2 and/or 3.

MONITORED PARAMETER:
Injector amplifier control valve cylinder 1, 2, 3.

TYPICAL ENABLING CONDITIONS:
Fuel injector system nozzle opening pressure reading 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.