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Electric Variable Valve Timing Driver Control Inspection

1.Perform the KOER self-test. If the following DTCs are detected, repair the applicable malfunctioning location according to the applicable DTC troubleshooting. (See DTC INSPECTION.)

• P0010:00, P0011:00, P0012:00, P1380:00,

2.Access the PCM PIDs [VLV_TIMING_ACT_IN] and [VLV_TIMING_DSD_IN] using the M-MDS data monitor function.

Warning

• When the M-MDS is used to observe monitor system status while driving, be sure to have another technician with you, or record the data in the M-MDS using the PID/DATA MONITOR AND RECORD capturing function and inspect later.

• While performing this step, always operate the vehicle in a safe and lawful manner.

3.Drive the vehicle (accelerate/decelerate and drive at constant speed), and verify that the PID [VLV_TIMING_ACT_IN] value changes in conjunction with the PID [VLV_TIMING_DSD_IN] value.

• If the change cannot be verified, replace the electric variable valve timing motor/driver. (See ELECTRIC VARIABLE VALVE TIMING MOTOR/DRIVER REMOVAL/INSTALLATION [SKYACTIV-G (WITHOUT CYLINDER DEACTIVATION (US))].)

Electric Variable Valve Timing Motor Unit Inspection

Warning

• A hot engine can cause severe burns. Turn off the engine and wait until it is cool before servicing.

Caution

• Do not disassemble the electric variable valve timing motor/driver because it is a precision unit.

• Do not apply excessive force when rotating the electric variable valve timing motor joint. If it is rotated with excessive force, the electric variable valve timing motor could be damaged.

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

2.Remove the electric variable valve timing motor/driver. (See ELECTRIC VARIABLE VALVE TIMING MOTOR/DRIVER REMOVAL/INSTALLATION [SKYACTIV-G (WITHOUT CYLINDER DEACTIVATION (US))].)

3.Rotate the electric variable valve timing motor joint to the left and right by your fingers and verify that it rotates smoothly in 15° increments.

Note

• Rotate the joint area smoothly using only the tips of your fingers.

• The electric variable valve timing motor joint moves in 15° increments, and if the joint is moved 24 times, it rotates one full rotation.

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• If it does not rotate smoothly, replace the electric variable valve timing motor/driver.(See ELECTRIC VARIABLE VALVE TIMING MOTOR/DRIVER REMOVAL/INSTALLATION [SKYACTIV-G (WITHOUT CYLINDER DEACTIVATION (US))].)

4.Install in the reverse order of removal.