STEP 1. Measure the sensor supply voltage at variable valve lift control motor harness side connector.
(1) Disconnect the variable valve lift control motor connector and measure at the harness side.
(2) Turn the ignition switch to the "ON" position.
(3) Measure the voltage between terminal HS5V line and ground.- Voltage should be between 4.9 and 5.1 volts.
(4) Turn the ignition switch to the "LOCK" (OFF) position.
Is the measured voltage between 4.9 and 5.1 volts?
Go to Step 3. Go to Step 2.
STEP 2. Check of short to ground and open circuit in HS5V line between variable valve lift control motor connector and valve lift ECU connector.
STEP 3. Check of harness damage in HS5V line between variable valve lift control motor connector and valve lift ECU connector.
STEP 4. Check the continuity at variable valve lift control motor harness side connector.
STEP 5. Check of open circuit and harness damage in HSE line between variable valve lift control motor connector and valve lift ECU connector.
STEP 6. Check of open circuit and harness damage in HSUS line between variable valve lift control motor connector and valve lift ECU connector.
STEP 7. Check of open circuit and harness damage in HSVS line between variable valve lift control motor connector and valve lift ECU connector.
STEP 8. Check of open circuit and harness damage in HSWS line between variable valve lift control motor connector and valve lift ECU connector.
STEP 9. Check of open circuit and harness damage in shield line between variable valve lift control motor connector and ground.
STEP 10. Replace the variable valve lift control motor.
(1) Replace the variable valve lift control motor.
(2) Turn the ignition switch to the "ON" position.
(3) After the DTC has been deleted, read the DTC again.
(4) Turn the ignition switch to the "LOCK" (OFF) position.
Is DTC P265B stored?
Go to Step 11. The inspection is complete.
STEP 11. Check the trouble symptoms.
STEP 12. 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 P265B stored?
Retry the troubleshooting. The inspection is complete.