Output Test Mode

Output test mode allows technician to activate most PCM output devices. Cooling fans can be activated independently of all other outputs. To access OUTPUT TEST MODE, turn ignition off. Ensure scan tool is properly connected. Program scan tool using the following steps:

• Turn ignition on.
• Select vehicle and engine selection menu (optional).
• Select year, engine, model and any additional information requested by scan tool.
• Select DIAGNOSTIC DATA LINK.
• Select PCM.
• Select ACTIVE COMMAND MODES.
• Follow operating instructions from scan tester.
• Command device(s) on or off (i.e., All ON, HIGH FAN, etc.).
• Select ON to activate output.
• Select OFF to turn outputs off.