Hydraulic variable valve timing control system operation inspection (when idling can be continued) (without using the M-MDS)
WARNING: This page is about a different variant/trim than selected.
- Open the capsule cover. (See CAPSULE COVER OPEN/CLOSE [PYUL] ).
- Disconnect the OCV connector.
- Start the engine and idle it.NOTE:
- When applying battery voltage between the OCV terminals, the positive and negative cables can be connected to either terminal A or B.
- Verify that the engine idles roughly or stalls when battery voltage is applied between OCV terminals A and B.
If the engine idles roughly or stalls, verify the condition of the timing chain assembly (valve timing). If the engine does not idle roughly or stall, perform the following inspections.
- OCV coil resistance inspection and spool valve operation inspection (See Hydraulic variable valve timing control system operation inspection (when idling can be continued) (without using the M-MDS) ). (See Coil resistance inspection ).
- Inspect the following wiring harnesses and connectors between the OCV and PCM for an open and short circuit.
- Between OCV terminal A and PCM terminal 1CO
- Between OCV terminal B and F24 15A fuse, and F24 15A fuse and main relay terminal C
- Inspect the oil passage for clogging and leakage.
Oil passage
- Between engine oil solenoid valve and OCV
- Between OCV and camshaft
- Oil passage inside camshaft
- If the inspection items are normal, replace the hydraulic variable valve timing actuator. (See HYDRAULIC VARIABLE VALVE TIMING ACTUATOR REMOVAL/INSTALLATION [PYUL] ).