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 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:
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 engine speed will remain in the commanded state until cancelled by the scan tool. | ||||||||
EVAP Purge Solenoid | Special Functions/EVAP System |
Important:
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 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 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:
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Fuel Pump | Special Functions/Engine Output Controls |
Important:
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:
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:
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:
The system remains in the commanded state until cancelled by the scan tool. |
