Scan Tool Output Control | Additional Menu Selection(s) | Description | ||||||
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CAC Coolant Pump Relay Command | Output Controls | This function activates the charge air cooler (CAC) coolant pump relay. The normal commanded state is NONE. When commanded ON or OFF, the engine control module (ECM) turns the relay ON or OFF. The system remains in the commanded state until cancelled by the scan tool. | ||||||
Cylinder Power Balance | Fuel System | Enables/Disables a cylinder by turning OFF the fuel injector to the cylinder. The fuel injector is normally enabled. The ECM disables the fuel injector when the following conditions are met:
When the DISABLE is selected the ECM turns the injector OFF for 30 seconds. During this period, the engine operates with a misfire. | ||||||
Engine Controls Ignition Relay | Output Controls | This function activates the engine control ignition relay. The normal commanded state is NONE. When commanded ON or OFF, the ECM turns the relay ON or OFF. The system remains in the commanded state until cancelled by the scan tool. | ||||||
Engine Speed Control | TAC System | Activates the throttle activation control (TAC) system to change engine speed. The normal commanded state is None. To enable the engine speed control, all instruction on the scan tool must be completed. The system will increase or decrease the engine speed within a range of 400-2,200 RPM. The set step value changes the engine speed by increments of 25 RPM, 100 RPM, and 500 RPM. The system remains in the commanded state until cancelled by the scan tool. | ||||||
EVAP Purge Solenoid | Output Controls/EVAP System | Activates the EVAP purge valve. The normal commanded state is NONE. The system will INCREASE or DECREASE the amount of EVAP purge valve opening by 10 percent increments within a range of 0-100 percent. The system remains in the commanded state until cancelled by the tool or the fuel tank pressure exceeds 24 mm Hg (12 in H20). | ||||||
EVAP Purge/Seal | Output Controls/EVAP System | This control enables 2 functions. One function increases or decreases the amount of purge by changing the duty cycle of the purge valve and commanding the vent ON (non-venting). The normal commanded state of both valves is NONE. The system will INCREASE or DECREASE the amount of EVAP purge valve opening by 10 percent increments within a range of 0-100 percent. The second function seals the system after using the purge function to obtain a specific amount of fuel tank pressure (FTP). When activated the purge valve is commanded to 0 percent and the vent valve is commanded ON (non-venting). Both functions remain in the commanded state until cancelled by the tool or the FTP exceeds 24 mm Hg (12 in H20). | ||||||
EVAP Service Bay Test | Service Bay Tests | Activates the Service Bay Test to verify the integrity of the EVAP System. The scan tool initiates the test when the following conditions are met:
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EVAP Vent Solenoid | Output Controls/EVAP System | Activates the EVAP vent solenoid. The normal commanded state is NONE. When commanded ON, the vent valve switches to non-venting. The system remains in the commanded state unless one of the following conditions occurs:
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Exhaust CMP Actuator Bank 1 | CMP Actuator System | This function controls the exhaust camshaft actuator for bank 1. The normal commanded state is NONE. The system will increase or decrease the angle of the selected camshaft in 5 degree increments up to 25 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. | ||||||
Exhaust CMP Actuator Bank 2 | CMP Actuator System | This function controls the exhaust camshaft actuator for bank 2. The normal commanded state is NONE. The system will increase or decrease the angle of the selected camshaft in 5 degree increments up to 25 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. | ||||||
Exh. CMP Actuator Sol. Bank 1 | CMP Actuator System | This function controls the exhaust camshaft actuator solenoid for bank 1. The normal commanded state is NONE. When commanded ON/OFF, the ECM turns the camshaft actuator 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. | ||||||
Exh. CMP Actuator Sol. Bank 2 | CMP Actuator System | This function controls the exhaust camshaft actuator solenoid for bank 2. The normal commanded state is NONE. When commanded ON/OFF, the ECM turns the camshaft actuator 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. | ||||||
Fuel Injector Balance | Fuel System | Enables fuel injector in order to verify proper fuel injector flow. The ECM also enables the fuel pump. The ECM will pulse the selected injector when the following conditions are met:
The selected fuel injector can only be flowed/pulsed once per ignition cycle. | ||||||
Fuel Pump | Output Controls | Controls the fuel pump relay. The normal commanded state is NONE. When commanded ON/OFF, the ECM turns the fuel pump ON/OFF. If the engine is running, and the fuel pump is commanded OFF, the engine will stall. The system remains in the commanded state until cancelled by the scan tool. | ||||||
Fuel Trim Enable | Fuel System | Disables the ECMs ability to learn new fuel trim parameters. The commanded states are NONE, ENABLED, DISABLED. The normal commanded state is NONE. The system remains in the commanded state until cancelled by the scan tool. | ||||||
Fuel Trim Reset | Fuel System | This function activates the reset of fuel trim data in all fuel trim cells. | ||||||
HO2S Bank 1 Sensor 1 Heater | Output Controls/Heated Oxygen Sensors | Activates the HO2S bank 1 sensor 2 heater. The ECM commands the heater on in 10% increments from 0% to 100%. The normal commanded state is NONE. The system remains in the commanded state until cancelled by the tool. | ||||||
HO2S Bank 1 Sensor 2 Heater | Output Controls/Heated Oxygen Sensors | Activates the HO2S bank 1 sensor 2 heater. The ECM commands the heater on in 10% increments from 0% to 100%. The normal commanded state is NONE. The system remains in the commanded state until cancelled by the tool. | ||||||
HO2S Bank 2 Sensor 1 Heater | Output Controls/Heated Oxygen Sensors | Activates the HO2S bank 1 sensor 2 heater. The ECM commands the heater on in 10% increments from 0% to 100%. The normal commanded state is NONE. The system remains in the commanded state until cancelled by the tool. | ||||||
HO2S Bank 2 Sensor 2 Heater | Output Controls/Heated Oxygen Sensors | Activates the HO2S bank 1 sensor 2 heater. The ECM commands the heater on in 10% increments from 0% to 100%. The normal commanded state is NONE. The system remains in the commanded state until cancelled by the tool. | ||||||
Idle Spark | Output Controls/Spark Control | Disables and enables idle spark advance with the engine running. | ||||||
Intake CMP Actuator Bank 1 | CMP Actuator System | This function controls the intake camshaft actuator for bank 1. The normal commanded state is NONE. The system will increase or decrease the angle of the selected camshaft in 5 degree increments up to 20 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. | ||||||
Intake CMP Actuator Bank 2 | CMP Actuator System | This function controls the intake camshaft actuator for bank 2. The normal commanded state is NONE. The system will increase or decrease the angle of the selected camshaft in 5 degree increments up to 20 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. | ||||||
Int. CMP Actuator Sol. Bank 1 | CMP Actuator System | This function controls the intake camshaft actuator solenoid for bank 1. The normal commanded state is NONE. When commanded ON/OFF, the ECM turns the camshaft actuator 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. | ||||||
Int. CMP Actuator Sol. Bank 1 | CMP Actuator System | This function controls the intake camshaft actuator solenoid for bank 2. The normal commanded state is NONE. When commanded ON/OFF, the ECM turns the camshaft actuator 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. | ||||||
Loop Status | Output Controls | Controls the system loop status. The commanded states include NONE, OPEN, or CLOSED. The normal commanded state is NONE. When commanded OPEN or CLOSED, the system remains in the commanded state until cancelled by the scan tool. | ||||||
Malfunction Indicator Lamp | Output Controls | Controls the malfunction indicator lamp (MIL). The commanded states include NONE, ON, and OFF. When commanded ON or OFF, the system remains in the commanded state until cancelled by the scan tool. | ||||||
Misfire Graphic | Misfire Graphic | Graphs the accumulated misfires occurring in each cylinder. The scan tool allows for a reset of the misfire graph. | ||||||
SCB Solenoid | Output Controls | Activates the solenoid from the none, increase, and decrease in increments and decrements by 10%. The range is 0-100%. | ||||||
Spark Retard | Output Controls/Spark Control | Controls the amount of spark retard. The normal commanded state is NONE. The system will INCREASE or DECREASE the amount of spark retard by 1 degree increments within a range of 0-10 degrees maximum retard. The system remains in the commanded state until cancelled by the tool. | ||||||
Throttle Position | TAC System | This function opens the throttle plate 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. |
