FREE Caterpillar ET Software: Accessing Parameter Lockout
Parameter Lockout
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| Figure 1.1 - Parameter Lockout (Locked) | 
The Parameter Lockout function allows parameters to be locked so that they 
cannot be changed anywhere in the Service Tool by service Mechanics. To unlock 
the parameters, Factory or Customer Passwords are required.
#Accessing
To run the Parameter Lockout function:
1). Connect CAT ET to the Service Tool connector. Read More: How to Connecting Caterpillar ET Software to the ECM.
2). Select Parameter Lockout from the 
Service menu.
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| Figure 1.2 - Parameter Lockout (Service) | 
3). The Parameter Lockout screen is displayed.
#Screen Layout
The Parameter Lockout screen has the following areas:
A. Display Area
The Parameter Lockout display area has two columns: Description and Mode. The 
Description column provides the name of the parameter. The Mode column displays 
the status of the parameter (Locked/Unlocked)
B. Buttons
The button available in the Parameter Lockout screen is:
- Change – Click this button to lock or unlock a selected parameter, based on its current mode.
 
*Note: Customer Passwords are required to lock the 
selected parameter. Factory Passwords are required to unlock the selected 
parameter. Read More: Factory Passwords on Caterpillar ET Software.
→Locked
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| Figure 1.4 - Click Yes (1) | 
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| Figure 1.5 - Low Idle Speed (Locked) | 
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| Figure 1.6 - Click Yes (2) | 
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| Figure 1.7 - Factory Passwords (Locked) | 
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| Figure 1.8 - Low Idle Speed (Unlocked) | 
#Parameter Lockout Effect
→Before: Low Idle Speed (Unlocked)
Go to Configuration Tool/ F5, and select Engine/Gear Parameters - Low Idle Speed.
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| Figure 1.9 - Low Idle Speed (Change Parameter Value) | 
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| Figure 2.1 - Low Idle Speed (Locked - Click Yes) | 
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| Figure 2.2 - Factory Passwords (Low Idle Speed) | 











Great job. Thanks.
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