STEP 1. Check the variable valve lift control motor.
STEP 2. Check of short to power supply and short circuit to ground in VLMV line between variable valve lift control motor connector and valve lift ECU connector.
STEP 3. Check of short to power supply and short circuit to ground in VLMU line between variable valve lift control motor connector and valve lift ECU connector.
STEP 4. Check of short to power supply and short circuit to ground in VLMW line between variable valve lift control motor connector and valve lift ECU connector.
STEP 5. Check the trouble symptoms.
STEP 6. Test the OBD-II drive cycle.
(1) Carry out a test drive with the drive cycle pattern. Refer to Diagnostic Function - OBD-II Drive Cycle - Pattern 23 . (2) Check the diagnostic trouble code (DTC).
Is DTC P2649 stored?
Retry the troubleshooting. The inspection is complete.