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Activating The Fan With The Scan Tool

Under the Engine Systems test heading, there is a subheading. "Fan solenoid test", that has the selections, on/off. Activating the fan with the scan tool will run the fan at a limited 72% duty cycle, which will help troubleshoot any system problems, and also help with the deaeration procedure.

NOTE:

Engine doesn't need to be running to activate the fan with the scan tool.

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