Check: All OEM safety requirements for pump operation must be fulfilled. Troubleshooting the Detroit Diesel Electronic Fire Commander: The PUMP ENGAGED and OKAY to PUMP LED’s won’t turn on. The INC, DEC, IDLE,MODE and PRESET switches as well as their outputs are tested. You can use the EFC I/O test as an aid in troubleshooting.
Additionally the VSS should be turned off in pressure governor operation. Troubleshooting the Detroit Diesel Electronic Fire Commander: The DDEC III ECM must be programmed for Pressure Sensor Governing and the Digital I/O’s must be configured properly for PSG operation. Exiting the programming menu is done in one of two ways. Change to a selection is performed by using the INC and DEC switches. Moving through the menu is accomplished by pressing the MENU switch. To enter the programming menu, Press and hold the MODE and MENU switches at the same time until “Press Idle to Exit “ is displayed on the information center, then release both switches. Programming the Detroit Diesel Electronic Fire Commander: Programming the EFC is simply a matter of selecting items from a menu. l a Engine speed can be controlled to a predetermined RPM by pressing the PRESET switch. The RPM LED will be on to indicate that the EFC will operate in the RPM mode. Operating the Detroit Diesel Electronic Fire Commander: RPM Mode: The EFC must be on and the Throttle Ready LED (interlocks necessary for increased throttle operations are active) must be illuminated before any RPM adjustments can be made. The operating mode of the Fire Commander can be changed from RPM Mode to Pressure Mode and back without the need to return to idle.
The RPM Mode controls the engine speed to a desired RPM and the Pressure Mode controls the engine speed to maintain a desired pump discharge pressure. Operating the Detroit Diesel Electronic Fire Commander (EFC): MODES: There are two modes of operation for the Electronic Fire Commander.
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