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Intake Valve Actuator Solenoid Test using Caterpillar ET Software

Intake Valve Actuator Solenoid Test (On-Highway Trucks)

Figure 1.1 - Intake Valve Actuator Solenoid Test

#Purpose
The Intake Valve Actuator Solenoid Test can be used to verify the operation of the Intake Valve Actuator Solenoid on one or all Cylinders. These tests provide a method for finding wiring or solenoid problems, and they are performed in the same manner. When either test is completed, the data can be analyzed to determine if all of the Cylinders are running effectively.

#Accessing
To run the Intake Valve Actuator Solenoid Test:
1). Select Diagnostic Tests from the Diagnostics menu.
Figure 1.2 - Diagnostic Tests (Diagnostics)

2). Select Intake Valve Actuator Solenoid Test from the sub-menu.
Figure 1.3 -Intake Valve Actuator Solenoid Test (Diagnostic Tests)

3). Click Start. The test screen is displayed (refer to Figure 1.1 above).

#Screen Layout
The Test Screen has the following areas:
A). Display Area
The Display Area has three columns:
  • Cylinder/Description – Lists the available Cylinder numbers.
  • Mode – Displays the current mode of the Cylinder, whether it is "Powered" or "Cutout".
  • Test Result – Displays "Open," "Short," or "OK" after the test has completed.

B). Buttons
The Buttons available on Test screen are:
  • Start – Click to begin the test. Once clicked, this button is disabled until the test is stopped.
Figure 1.4 - Intake Valve Actuator Solenoid Test (Start)
  • Stop – Click to stop the test. Once clicked, this button is disabled until the test is restarted.
  • Power All – Click to return all Cylinders to the powered, or active state.
  • Cutout All – Click to change the state of all Cylinders to cutout.
Figure 1.5 - Intake Valve Actuator Solenoid Test (Cutout All)
  • Change – Click to change the state of the Cylinder. Changing the state of the Cylinder allows solenoid troubleshooting by "cutting out" and subsequently re-powering an individual Cylinder.
Figure 1.6 - Intake Valve Actuator Solenoid Test (Change)


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