The camshaft is in a more advanced position when it has been instructed to retard to
a lower timing level. There may be clogged passages in the oil control solenoid in
the bank 1 camshaft.
There’s a lack of oil flow to and from the camshaft phasers as a result of the oil being too thick.
The camshaft phasers may have become stuck in the advanced position.
Inspect the wiring, electrical connectors and valves of the oil control valves in
the bank 1 intake camshaft. Ensure the engine has access to clean oil with
the appropriate thickness, as this is a common cause of the error.
The 2.5 engine is ViVT, so it's only the intake cam, not exhaust cam.
- Inspect the wiring and connections to the bank 1 intake camshaft oil control valve, replacing or repairing as required
- Replacing the bank 1 intake camshaft oil control valve
The oil control valve is on the driver side of the motor: