Scan Tool Output Controls

Scan Tool Output Control	Additional Menu Selection(s)	Description
Camshaft Actuator Solenoid	Special Functions/Engine Output Controls/CMP Actuator System	This function controls the selected camshaft actuator solenoid. The normal commanded state is NONE. The system will increase or decrease the angle of the selected camshaft in 5 degree increments up to 50 crankshaft degrees. The scan tool initiates the test when the following conditions are met: The vehicle speed is 0 km/h (0 mph). The transmission is in park or neutral. The engine speed is between 1000-1400 RPM. The system remains in the commanded state until cancelled by the scan tool.
Cylinder Power Balance	Special Functions/Fuel System	This function disables the selected fuel injector. The normal commanded state is None. The scan tool initiates the test when the following conditions are met: The engine is operating and the engine idle is stable. The vehicle speed is 0 km/h (0 mph). There are no DTCs set for the vehicle speed sensor. If the fuel injector was disabled for 30 seconds, fuel injector control is not allowed again on the same fuel injector for 60 seconds.
Engine Speed Control	Special Functions/TAC System	IMPORTANT: DTCs may set when using this output control. This function controls the idle speed override in 20 RPM, 100 RPM, and 500 RPM increments, from the base idle speed to 1400 RPM. The scan tool initiates the test when the following conditions are met: The transmission is in park or neutral. The engine speed is less than 1000 RPM The engine speed will remain in the commanded state until cancelled by the scan tool.
EVAP Purge Solenoid	Special Functions/EVAP System	IMPORTANT: This function may be disabled if there is an EVAP DTC set. The EVAP Purge Solenoid Command parameter may not change states when using this output control. This function controls the EVAP purge solenoid valve. The normal commanded state is NONE. The system will Increase or Decrease the amount of purge by changing the duty cycle of the purge valve in 10 percent increments within a range of 0-100 percent. The system remains in the commanded state until cancelled by the scan tool or the fuel tank pressure (FTP) sensor exceeds -24 mm Hg (-12 in H20).
EVAP Purge/Seal	Special Functions/EVAP System	IMPORTANT: This function may be disabled if there is an EVAP DTC set. The EVAP Purge and Vent Solenoid Command parameters may not change states when using this output control. This function activates both the EVAP purge solenoid valve and EVAP vent solenoid to seal the EVAP system. When activated, the purge valve is commanded to 0 percent and the vent valve is commanded ON, Not-venting. The normal commanded state for both solenoids is None. Both of the solenoids remain in the commanded state until cancelled by the scan tool or the fuel tank pressure (FTP) sensor exceeds -24 mm Hg (-12 in H20).
EVAP Vent Solenoid	Special Functions/EVAP System	IMPORTANT: This function may be disabled if there is an EVAP DTC set. The EVAP Vent Solenoid Command parameter may not change states when using this output control. This function controls the EVAP vent solenoid. The normal commanded state is NONE. When commanded ON, the vent valve switches to Not-venting. The system remains in the commanded state unless one of the following conditions occurs: Cancelled by the scan tool The EVAP canister Purge solenoid is more than 0 percent, and the fuel tank pressure (FTP) sensor exceeds -24 mm Hg (-12 in H20).
Fuel Pump	Special Functions/Engine Output Controls	IMPORTANT: The Fuel Pump Relay Command parameter may not change states when using this output control. DTCs may set when using this output control. This function controls the fuel pump relay. The normal commanded state is NONE. The scan tool initiates the test when the following conditions are met: There are no vehicle speed sensor DTCs set. The vehicle speed is 0 km/h (0 mph). When commanded ON/OFF, the ECM turns the fuel pump relay ON/OFF. If the engine is running and the fuel pump relay is commanded OFF, the engine will stall. The system remains in the commanded state for about 2 seconds or until cancelled by the scan tool or the ECM detects a vehicle speed.
Fuel Trim Reset	Special Functions/Fuel System	This function resets the fuel trim data and the learned values for the rear heated oxygen sensors.
Heated Oxygen Sensor (HO2S)	Special Functions/Engine Output Controls	This function controls the selected HO2S heater control circuit. The normal commanded state is NONE. The system will decrease the duty cycle of the selected HO2S in 10 percent increments down to 0 percent. The system remains in the commanded state until cancelled by the scan tool.
IMRC Solenoid	Special Functions/Engine Output Controls	IMPORTANT: The IMRC Solenoid Command parameter may not change states when using this output control. This function controls the IMRC solenoid. The normal commanded state is NONE. When commanded ON/OFF, the ECM turns the IMRC solenoid ON/OFF. The scan tool initiates the test when the following conditions are met: There are no vehicle speed sensor DTCs set. The vehicle speed is 0 km/h (0 mph). The system remains in the commanded state until cancelled by the scan tool.
Malfunction Indicator Lamp	Special Functions/Engine Output Controls	IMPORTANT: The MIL Command parameter may not change states when using this output control. This function controls the malfunction indicator lamp (MIL). The normal commanded state is NONE. When commanded ON/OFF, the ECM turns the malfunction indicator lamp (MIL) ON/OFF. The system remains in the commanded state until cancelled by the scan tool.
Throttle Position	Special Functions/TAC System	This function controls the throttle valve in 25 percent increments. The scan tool initiates the test when the following conditions are met: There are no vehicle speed sensor DTCs set. The vehicle speed is 0 km/h (0 mph). The ignition is ON, with the engine OFF. The ECM is not commanding a throttle learn. The system remains in the commanded state until cancelled by the scan tool.