Work Procedure

Wastegate valve closed position learning is a function of ECM to learn the fully closed position of the wastegate valve by monitoring the wastegate valve position sensor output signal. It must be performed under any of the following conditions:

• Turbocharger assembly is replaced or removed.
• ECM is replaced.
• Engine assembly is replaced.

1. PERFORM WASTEGATE VALVE CLOSED POSITION LEARNING VALUE CLEAR 
   1. On the CONSULT screen, select "ENGINE" >> "WORK SUPPORT" >> "WASTEGATE ACTUATOR POSI LEARN VALUE CLEAR".
   2. Touch "Start".
   3. Check that "COMPLETED" is displayed. If "COMPLETED" is not displayed, repeat the above.

   GO TO 2.

2. PERFORM WASTEGATE VALVE CLOSED POSITION LEARNING 
   1. Check that the engine is cold [coolant temperature: 50 deg.C (122 deg.F) or less].
   2. Start the engine and let it idle for 10 seconds.
   3. Check that "COMPLETED" is displayed.

   END