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Detroit DD15 EPA07 (2007-09) Fault Code: SPN 3598 FMI 4 (MCM) Proportional Valve Bank 2 Circuit Failed Low

DESCRIPTION:
Proportional valve bank 2 circuit failed low.

MONITORED PARAMETER:
Proportional valve bank 2 circuit.

TYPICAL ENABLING CONDITIONS:
Always enabled

MONITOR SEQUENCE:
None

EXECUTION FREQUENCY:
Always enabled

TYPICAL DURATION:
Two seconds

DASH LAMPS:
1. MIL
2. CEL

ENGINE REACTION:
25% Derate

VERIFICATION:
Ignition Key Cycle.

NOTE: Other circuit low fault codes may set as a result of SPN 358/FMI 4.

PROBABLE CAUSES:
1. Short to ground between the rear valve cover fuel injector harness and the medium (rear) engine brake solenoid.
2. Failed EGR valve.
3. Short to ground between pin 62 of the 120-pin ECM Connection and the EGR valve actuator/rear valve cover fuel injector harness connectors.
4. Short to ground between pin 64 of the 120-pin ECM connection and the electronic dosing valve/fuel cutoff valve connector.
5. Failed HC doser block assy.

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