1.CHECK FOR EXHAUST GAS LEAK
 
 2.CHECK FOR INTAKE AIR LEAK
 
 3.CHECK RECIRCULATION VALVE
 
 4.CHECK TURBOCHARGER BOOST CONTROL SOLENOID VALVE POWER SUPPLY CIRCUIT
 
 5.DETECT MALFUNCTIONING PART
 
 6.CHECK TURBOCHARGER BOOST CONTROL SOLENOID VALVE OUTPUT SIGNAL CIRCUIT FOR OPEN AND SHORT
 
 7.CHECK TURBOCHARGER BOOST CONTROL SOLENOID VALVE
 
 8.CHECK BOOST CONTROL ACTUATOR
 
 9.CHECK TURBOCHARGER BOOST SENSOR
 
 10.CHECK INTERMITTENT INCIDENT