3/12/2023 0 Comments Fire commander detroit diesel![]() Check that the connections at pins #3 and #4 of the EFC 4-pin connector are secure. Condition: The Engine Data Display is showing all zeroes. Check for a pump discharge pressure reading in the Menu. Press the INC and then the PRESET buttons to increase pump pressure. Check that all three lamps: PUMP ENGAGED, OKAY TO PUMP, and THROTTLE READY are on. Condition: The throttle will not increase in Pressure Mode. This is indicated on the EFC by a momentary lighting of all the display segments. (Remove power to the EFC wait ten seconds and then power the unit and try again.) NOTE: The EFC performs a "self-test" when it is powered up. Does the EFC indicate it is increasing RPM on the data display? Check the switch and outputs in the Menu I/O test. Press the PRESET and then the INC switches. The EFC will not respond in RPM mode unless the OEM safety interlock requirements that enable the throttle are met. Condition: The throttle will not increase in RPM Mode. ![]() Check if there is a 12 VDC between pins #1 and #2 at the EFC 4-pin connector. Check if the necessary switches are turned on. ![]() The Electronic Fire Commander wiring is listed in Table 10-18, listed in Table 10-19, listed in Table 10-20. These conditions are listed and the suggested actions follow each one. 10.13 FIRE TRUCK PRESSURE GOVERNOR FAULT 10.13.10.3 Troubleshooting the Electronic Fire Commander This section lists some of the common troubles encountered during the installation and check out of the Electronic Fire Commander.
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