Here is the instruction show you guide on how to use CAT ET 2025A diagnostic software to perform Fuel Rail Pump Solenoid Test for Caterpillar machine.The Fuel Rail Pump Solenoid Test function can be used to verify the operation of the fuel rail pump solenoid.
This test provides a method for determining whether or not an open circuit or short circuit is present. This test is designed to work with an engine speed of 0 RPM.
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Accessing
To run the Fuel Rail Solenoid Test, select “Diagnostic Tests” from the Diagnostics Menu, and then select “Fuel Rail Solenoid Test” from the submenu. The Fuel Rail Solenoid Test screen is displayed.
Screen Layout
The Fuel Rail Solenoid Test screen has the following areas:
Tree Area
The Tree area lists the available ECMs and the selected diagnostic test.
Note: If more than one diagnostic test is available, the selected test will be highlighted.
Display Area
The Fuel Rail Solenoid Test display area has three columns:
Description – Lists the available fuel rail pump solenoid numbers
Mode – Displays the current mode of the cylinder; i.e., whether it is “Powered” or “Cutout”
Test Result – Displays “OK”, “Not OK (Short)”, or “Not OK (Open),” after the test has completed
Buttons
The Buttons available on the Fuel Rail Solenoid Test screen are:
Change – Click to change the state of the solenoid. Changing the state of the solenoid allows troubleshooting by “cutting out” and subsequently repowering an individual solenoid.
Power All – Click to return all solenoids to the powered, or active, state.
Cutout All – Click to change the state of all solenoids to “Cutout”.
Start – Click to begin the test. Once clicked, this button is disabled until the test is stopped.
Stop – Click to stop the test. Once clicked, this button is disabled until the test is restarted.
