Output Test Mode

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This mode allows a technician to energize and de-energize most of the system output actuators on command. After accessing OUTPUT TEST MODE, outputs and cooling fans can be turned on and off separately.

To access OUTPUT TEST MODE, turn ignition off. 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 PCM-POWERTRAIN CONTROL MODULE.
Select DIAGNOSTIC TEST MODE.
Select ACTIVE COMMAND MODE.
Select OUTPUT TEST MODE.
Turn ignition on.
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.