Good after noon I have a 350g with code 5125-04 and I’m not getting anywhere on finding a description of the code. If anyone would let me know please and thank you.
You have a machine serial number ? Can you post a pic of the monitor showing the code.
5125.04 Sensor Supply #7 Voltage out of Range Low The information below might change a little based on the serial number, that is why that is important. Sensors on this circuit are: Fuel Dosing Inlet Sensor, Fuel Dosing Outlet Pressure Sensor and the MAP sensor.
1FF350GXE KF814190 ill have to go and take a picture of the monitor but here is the serial number on the unit.
Are you over 3000 hrs. If so, then no warranty. Serial number did matter. It changed the components on the sensor supply #7. The components on supply #7 are the EGR flow sensor, Fan speed sensor, and the Manifold Air Pressure (MAP) sensor. My money would be on an issue with the fan speed sensor since they have been a problem child for those machines. First, I would check the fan speed sensor connector. They like to push the pins out for some reason. Any other codes (particularly 16XX.XX codes) stored in the monitor?