FUNCTION
The ECM controls the opening of the diesel throttle valve to reduce the noise caused when idling and decelerating, and the noise and vibrations caused when stopping the engine.
SYSTEM CONTROL
The opening of the diesel throttle valve is controlled by the ECM in accordance with the engine conditions. As a result, the noise that is generated during idling and deceleration, as well as the noise and vibrations that are generated when the engine is stopped, have been reduced and this control makes it possible to recirculate exhaust gas in accordance with the driving conditions.
| *1 | Throttle Position Sensor | *2 | Throttle Control Motor |
| *3 | Diesel Throttle Valve | *4 | ECM |
| *5 | Engine Speed Signal | *6 | Vehicle Speed Signal |
| *7 | Engine Coolant Temperature Signal | *8 | Intake Air Temperature Signal |
| *9 | Accelerator Pedal Position Signal | *10 | Intake Air Pressure Signal |
| *11 | Ignition Signal | - | - |