Scan Tool Output Controls
| Output Control | Description |
|---|---|
| A/C Compressor Clutch Relay | This function activates the A/C compressor relay. The normal commanded state of the A/C relay is OFF. The A/C compressor will turn ON/OFF when commanded ON/OFF. The system remains in the commanded state for approximately 5 seconds. The engine control module (ECM) will inhibit the operation of the A/C relay when the ambient air temperature is low. |
| Cooling Fan | Cooling Fan Speed Enable; Cooling Fan Speed |
| Cooling Fan Relay 1 | Cooling Fan Speed Enable; Cooling Fan Speed |
| Cooling Fan Relay 2 | Cooling Fan Speed Enable; Cooling Fan Speed |
| Cooling Fan Relay 3 | Cooling Fan Speed Enable; Cooling Fan Speed |
| Crank Case Ventilation Heater | Activate heater for crankcase ventilation Crank Case Ventilation Heater ON |
| Cylinder Power Balance | Fuel Injector Enable; Fuel Injector ON |
| EGR Cooler Bypass Valve | Activate bypass valve to EGR cooler. Bypass valve to EGR cooler ON. |
| EGR Valve | This function opens or closes the exhaust gas recirculation (EGR) solenoid. The EGR solenoid increases or decreases in 10 percent increments. The device control will not change unless changed or cancelled by the scan tool. |
| Engine Speed | This function adjusts engine speed in steps of 25, 100 or 500 rpm between 600-1 500 rpm. The Device Control will not change unless changed or cancelled by the scan tool. |
| Fuel Injector Balance |
NOTE:
This function is only allowed with the engine idling. This function controls the fuel balance of the injectors. When commanded OFF the normal fuel differences is present. When commanded ON the cylinder specific RPM is displayed. |
| Fuel Pump Relay | This function activates the pump ON or OFF. The Device Control will not change unless changed or cancelled by the scan tool. |
| Generator L-Terminal | This function controls the system voltage. When commanded ON, normal system voltage output is present. When commanded OFF, system voltage output is no longer present, Ignition 1 signal continues to drop, Generator L-Terminal goes to OFF and Generator F-Terminal continues to drop. |
| Glow Plug | This function activates the Glow Plug Controller ON or OFF. The Device Control will be aborted after 12 seconds for the first activation, and after 5 seconds for every other activation. The Device Control is inhibited if the engine is running. |
| HO2S Heater Sensor 1 | HO2S Heater Sensor 1 Command 0-100% |
| Intake Air Flow Valve Position | Intake Air Flow Valve Position Command 0-100% |
| Intake Manifold Runner Control Valve | Intake Manifold Runner Command 0-100% |
| Starter Relay | Starter Relay Enable Starter Relay ON |
| Turbocharger Vane Position | Cycles the turbocharger vane position solenoid to 95 percent boost and back to 0 percent boost. The device control is limited to engine speeds less than 2 000 RPM. |