Accessing Output Test Mode

To access OUTPUT TEST MODE, turn ignition switch to OFF position. Ensure test equipment is properly attached. Program scan tool using the following steps:

Select VEHICLE & ENGINE SELECTION menu.
Select NEW VEHICLE, YEAR & MODEL.
Follow operating instructions from scan tool menu.
Select DIAGNOSTIC DATA LINK.
Select POWERTRAIN CONTROL MODULE.
Select DIAGNOSTIC TEST MODE.
Select ACTIVE COMMAND MODE.
Select OUTPUT TEST MODE.
Turn ignition switch to ON position.
Follow operating instructions from scan tool menu.
Select START to turn outputs on.
Select STOP to turn outputs off.
Select either LOW SPEED FAN, HIGH SPEED FAN or ALL ON mode.