Scan Tool Output Control | Additional Menu Selection(s) | Description | ||||||
|---|---|---|---|---|---|---|---|---|
AIR Pump Relay & Solenoid | Engine Output Controls/AIR System | Activates the relay that turns ON the secondary air injection (AIR) pump and the AIR solenoid. The pump and the solenoid will automatically turn OFF after a maximum of 4 seconds. The output control will be disabled for 30 seconds before operation is allowed again. The output control is disabled if the vehicle speed sensor (VSS) is equal to or greater than 5 km/h (3 mph). | ||||||
-- | Engine Output Controls/Crankshaft Position Variation Learn | Enables the powertrain control module (PCM) to learn the variations in the crankshaft position system. The PCM will learn the variations once the following conditions are met:
The PCM learns the variation values during deceleration from fuel cut-off. | ||||||
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 PCM disables the fuel injector when the following conditions are met:
When DISABLE is selected, the PCM turns the injector OFF for 30 seconds. During this period, the engine operates with a misfire. | ||||||
EGR Solenoid | Engine Output Controls | Activates the exhaust gas recirculation (EGR) solenoid in 10 percent increments from 0 to 100 percent for a maximum of 15 seconds. | ||||||
EVAP Purge Solenoid | Engine Output Controls/EVAP System | Activates the purge solenoid in 10 percent increments from 0 to 100 percent. The device control will be aborted and inhibited if the fuel tank pressure (FTP) sensor exceeds 19 mm Hg (10 in H2O). | ||||||
EVAP Test | Service Bay Tests | Activates the Service Bay Evaporative Emissions (EVAP) System Diagnostic after the enabling conditions set by the scan tool are met. | ||||||
EVAP Vent Solenoid | Engine Output Controls/EVAP System | Activates the vent solenoid. The device control will be aborted and inhibited if the FTP sensor exceeds 19 mm Hg (10 in H2O). | ||||||
EVAP Purge/Seal | Engine Output Controls/EVAP System | Simultaneously activates the purge solenoid in 10 percent increments from 0 to 100 percent and the vent solenoid. The device control will be aborted and inhibited if the FTP sensor exceeds 19 mm Hg (10 in H2O). | ||||||
Fuel Injector Balance | Fuel System | Enables fuel injector in order to verify proper fuel injector flow. The PCM 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 | Engine Output Controls | Activates the fuel pump relay for 2 seconds. | ||||||
Fuel Trim Reset | Fuel System | Activates the reset of fuel trim data in all fuel trim cells. | ||||||
Loop Status | Engine 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. | ||||||
MIL | Engine Output Controls/Dash Lamps | Activates the malfunction indicator lamp (MIL). The MIL will remain illuminated until cancelled by the scan tool. | ||||||
-- | Engine Output Controls/Misfire Graphic | Graphs the accumulated misfires occurring in each cylinder. The scan tool allows for a reset of the misfire graph. | ||||||
RPM Control | IAC System | Activates the idle air control (IAC) valve to change engine RPM. The normal commanded state is NONE. To enable the RPM control, all instructions on the scan tool must be completed. The system will INCREASE or DECREASE the RPM within a range of 400-2,000 RPM. The SET STEP VALUE allows the RPM to change by increments of 25 RPM, 100 RPM, and 500 RPM. The system remains in the commanded state until cancelled by the tool. |
