How to Adjust Idle Speed and Reset Fuel Injector on CUMMINS by LAUNCH X431 HD Tablet?


Launch X431 HD diagnostic tool can support idle speed adjustment, speed limit adjustment and fuel injector reset for CUMMINS. It can through the [Service Function] on the main menu of Launch X431 tablet to perform the available special functions.


Launch X431 HD diagnostic scanner recommended:
Launch X431 PAD5 LINK HD (PAD V Elite with SmartLink C+ Launch X431 HD Heavy Duty Truck Software License and Adapters)
Launch X431 PAD7 LINK HD (PAD VII Elite with SmartLink C+ Launch X431 HD Heavy Duty Truck Software License and Adapters)
Launch X431 V+ SmartLink HD (PRO3 LINK HD)
Launch X431 PRO3S+ SmartLink HD

1.Cummins Idle Speed Adjustment
https://youtu.be/SaMaO7bsh5o
Select Service Function>> Idle Speed Adjustmenta
Read the introduction and tap “TO DIAGNOSE”


Select Cummins>> Cummins diagnostic software (i.e. V16.60)>> System Automatic

Select Adjustable Low Idle Speed>> Low Idle Speed
The current value is 610
Enter the new value (i.e.602) and click “Apply”
The new value has been written to the ECM successfully




Back to the previous page
Select “Low Idle Speed Adjustment Switch”
The current value is “Enable”
Input “0” and click “Apply”
Follow the on-screen prompt to operate
Finally, the current value turns to “Disable”



2.Cummins Speed Limit Adjustment
https://youtu.be/O-XmrxRh_sI
Select Service Function>> Speed Limit Adjustment
Read the introduction and tap “TO DIAGNOSE”


Select Cummins>> Cummins diagnostic software (i.e. V16.60)
Click “OK”
Select “System Automatic”
Follow the on-screen prompt to stop the engine and turn off the ignition switch when refreshing features and parameters (during setting)!
Select “Road Speed Governor”
Select another “Road Speed Governor”



Select “Maximum Accelerator Vehicle Speed”
The current value is 90
Modify the value (e.g. 100)
After that, click “Apply”
Turn the key switch off and then click “OK”
Wait a while until the program is successful
Turn the key switch on and then click “OK”
All parameters were written successfully to the ECM
The current values turn to the modification value.




3.Cummins Fuel Injector Reset
https://youtu.be/cjaqJcxcF-Q
Select Service Function>> Oil Mantenance Reset
Read the introduction and tap “TO DIAGNOSE”


Select Cummins>> Cummins diagnostic software (i.e. V16.60)>> System Automatic
Select “Fuel Injector Reset”
Select “Number of Cylinders” and tap “Reset”
Click “Select all” to select the injector on all cylinders
Then click “OK”
All injector reset commands have been sent to ECM.





Tech support:
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WhatsApp: +86 18750906257
www.launchx431.fr