EXHAUST SHUTTER VALVE POSITION SENSOR INSPECTION [WITH CYLINDER DEACTIVATION (SKYACTIV-G 2.0, SKYACTIV-G 2.5)]

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Note

•  The exhaust shutter valve position sensor is built into the exhaust shutter valve. When replacing the exhaust shutter valve position sensor, replace the TWC.

•  The PCM increases the target engine speed for quick activation of the catalytic converter after a cold engine start. The PCM controls the exhaust shutter valve at the fully-closed position while the catalytic converter is activated quickly. Perform the exhaust shutter valve position sensor inspection with the engine cooled sufficiently (engine coolant temperature has decreased to equivalent of ambient temperature).

Function inspection

1.  Leave the vehicle for 6 hours or more.

2.  Connect the M-MDS to the DLC-2.

3.  Switch the ignition ON (engine off).

4.  Display the PIDs EFCV_AP_C and EFCV_AP_M.

5.  Start the engine.

6.  Verify that the vehicle is under all of the following conditions right after engine start.

•  The PID EFCV_AP_M value conforms to the EFCV_AP_C value.

•  The PID EFCV_AP_M value changes in the order of approx. 66 ° (fully closed position), 4 ° (fully open position), and 66 ° (fully closed position).

―  If the operation cannot be verified, replace the TWC. (See EXHAUST SYSTEM REMOVAL/INSTALLATION [WITH CYLINDER DEACTIVATION (SKYACTIV-G 2.0, SKYACTIV-G 2.5)].)