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EXHAUST SHUTTER VALVE INSPECTION [SKYACTIV-D 1.8]

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Note

•  To determine the malfunctioning part, proceed with the diagnostics from “Function Inspection Using M-MDS”.

•  The exhaust shutter valve cannot be removed because it is built into the middle pipe.

PID/DATA Monitor Inspection

1.  Connect the M-MDS to the DLC-2.

2.  Switch the ignition ON (engine off).

3.  Display PID EX_SHUT_VLV_ACT and simulation item EX_SHUT_VLV_DSD using the M-MDS. (See PID/DATA MONITOR INSPECTION.)(See PID/DATA MONITOR TABLE [PCM (SKYACTIV-D)].)(See SIMULATION INSPECTION.)(See SIMULATION TABLE [PCM (SKYACTIV-D)].)

4.  Verify that the PID EX_SHUT_VLV_ACT value conforms to the simulation item EX_SHUT_VLV_DSD value when the exhaust shutter valve opening angle (simulation item: EX_SHUT_VLV_DSD) is changed using the simulation function.

•  If the PID EX_SHUT_VLV_ACT value does not conform at all or partially, perform the resistance inspection. (See Resistance Inspection.)

•  If the PID EX_SHUT_VLV_ACT value conforms, the exhaust shutter valve is normal.

Resistance Inspection

1.  Switch the ignition OFF.

2.  Disconnect the negative battery terminal. (See NEGATIVE BATTERY TERMINAL DISCONNECTION/CONNECTION [(E)].)

3.  Disconnect the exhaust shutter valve connector. (See EXHAUST SHUTTER VALVE ACTUATOR REMOVAL/INSTALLATION [SKYACTIV-D 1.8].)

4.  Inspect the resistance between exhaust shutter valve terminals E and F.

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•  If not within the specification, replace the exhaust shutter valve actuator. (See EXHAUST SHUTTER VALVE ACTUATOR REMOVAL/INSTALLATION [SKYACTIV-D 1.8].)

•  If within the standard and the PID EX_SHUT_VLV_ACT value does not conform partially as a result of the PID/data monitor inspection, replace the middle pipe. (See EXHAUST SYSTEM REMOVAL/INSTALLATION [SKYACTIV-D 1.8].)

•  If within the standard and the PID EX_SHUT_VLV_ACT value does not conform at all as a result of the PID/data monitor inspection, perform a visual inspection. (See Visual Inspection.)

Visual Inspection

1.  Connect the exhaust shutter valve connector. (See EXHAUST SYSTEM REMOVAL/INSTALLATION [SKYACTIV-D 1.8].)

2.  Connect the negative battery terminal. (See NEGATIVE BATTERY TERMINAL DISCONNECTION/CONNECTION [(E)].)

3.  Connect the M-MDS to the DLC-2.

4.  Switch the ignition ON (engine off).

5.  Display simulation item EX_SHUT_VLV_DSD using the M-MDS. (See SIMULATION INSPECTION.)(See SIMULATION TABLE [PCM (SKYACTIV-D)].)

6.  With the M-MDS connected to the DLC-2, move the vehicle to the position where the exhaust shutter valve motor can be verified as shown in the following figure.

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7.  Verify that the notch of the exhaust shutter valve is driven as shown in the following figure when the exhaust shutter valve opening angle (simulation item: EX_SHUT_VLV_DSD) is changed using the simulation function.

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•  If the notch does not operate, replace the middle pipe. (See EXHAUST SYSTEM REMOVAL/INSTALLATION [SKYACTIV-D 1.8].)

•  If the notch operates, replace the exhaust shutter valve actuator. (See EXHAUST SYSTEM REMOVAL/INSTALLATION [SKYACTIV-D 1.8].)