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ELECTRIC VARIABLE VALVE TIMING MOTOR/DRIVER INSPECTION [SKYACTIV-X 2.0]

ELECTRIC VARIABLE VALVE TIMING MOTOR/DRIVER INSPECTION [SKYACTIV-X 2.0]

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Item

Reference
Intake electric variable valve timing motor/driver
(See Intake Electric Variable Valve Timing Motor/Driver.)
Exhaust electric variable valve timing motor/driver
(See Exhaust Electric Variable Valve Timing Motor/Driver.)


Intake Electric Variable Valve Timing Motor/Driver


Intake 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 or 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, perform the intake electric variable valve timing motor unit inspection. (See Intake electric variable valve timing motor unit inspection.)


Intake 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 intake electric variable valve timing motor/driver because it is a precision unit.
•  Do not apply excessive force when rotating the intake electric variable valve timing motor joint. If it is rotated with excessive force, the intake electric variable valve timing motor could be damaged.

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

2.  Remove the intake electric variable valve timing motor/driver. (See ELECTRIC VARIABLE VALVE TIMING MOTOR/DRIVER REMOVAL/INSTALLATION [SKYACTIV-X 2.0].)

3.  Rotate the intake 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 intake electric variable valve timing motor joint moves in 15° increments, and if the joint is moved 24 times, it rotates one full rotation.
am3zzw00035080
•  If it does not rotate smoothly, replace the intake electric variable valve timing motor/driver.(See ELECTRIC VARIABLE VALVE TIMING MOTOR/DRIVER REMOVAL/INSTALLATION [SKYACTIV-X 2.0].)

4.  Install in the reverse order of removal.


Exhaust Electric Variable Valve Timing Motor/Driver


Exhaust 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.)

•  P0013:00, P0014:00, P0015:00 or P1380:00

2.  Access the PCM PIDs [VLV_TIMING_ACT_EX] and [VLV_TIMING_DSD_EX] 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_EX] value changes in conjunction with the PID [VLV_TIMING_DSD_EX] value.

•  If the change cannot be verified, perform the exhaust electric variable valve timing motor unit inspection. (See Exhaust electric variable valve timing motor unit inspection.)


Exhaust 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 exhaust electric variable valve timing motor/driver because it is a precision unit.
•  Do not apply excessive force when rotating the exhaust electric variable valve timing motor joint. If it is rotated with excessive force, the exhaust electric variable valve timing motor could be damaged.

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

2.  Remove the exhaust electric variable valve timing motor/driver. (See ELECTRIC VARIABLE VALVE TIMING MOTOR/DRIVER REMOVAL/INSTALLATION [SKYACTIV-X 2.0].)

3.  Rotate the exhaust 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 exhaust electric variable valve timing motor joint moves in 15° increments, and if the joint is moved 24 times, it rotates one full rotation.
am3zzw00035081
•  If it does not rotate smoothly, replace the exhaust electric variable valve timing motor/driver.(See ELECTRIC VARIABLE VALVE TIMING MOTOR/DRIVER REMOVAL/INSTALLATION [SKYACTIV-X 2.0].)

4.  Install in the reverse order of removal.