GENERAL INFORMATION

FUEL INJECTION CONTROL

THROTTLE VALVE OPENING CONTROL

IDLE SPEED CONTROL

IGNITION TIMING CONTROL

SELF-DIAGNOSIS FUNCTION

• When an abnormality is detected in one of the sensors or actuators related to emission control, the engine warning lamp (check engine lamp) illuminates as a warning to the driver.
  
• When an abnormality is detected in one of the sensors or actuators, a diagnosis code corresponding to the abnormality is output.
  
• The RAM data inside the engine-ECU that is related to the sensors and actuators can be read by means of the M.U.T.-III. In addition, the actuators can be force-driven under certain circumstances.
  

OTHER CONTROL FUNCTIONS

• Auto Stop Prohibition Control
  When one or more of following conditions are satisfied during idling, the engine-ECU should send the auto stop prohibition signal to the AS&G-ECU.
  

1. The engine coolant temperature is lower than approximately 60°C.
   
2. When one or more of the following conditions are satisfied, the vehicle is in "auto stop prohibition status" by electrical load.
   

• The amount of the vehicle current consumption is more than the specified value.
  
• The power generation control is in the forcible full charge mode.
  
• The buttery discharge current is more than the specified value.
  

• Forcible Auto Start Request Control
  When one or more of following conditions are satisfied during the auto stop, the engine-ECU should send the engine start request signal to the AS&G-ECU.
  

1. The engine coolant temperature is lower than approximately 55 °C.
   
2. The amount of the vehicle current consumption is more than the specified value.
   
3. The buttery discharge current is more than the specified value.
   
4. Diagnosis code No. P1608 is detected.
   

GENERAL SPECIFICATIONS