Possible causes

– Engine oil level
– Dirty engine oil
– Check VTC Strainer for blockage
– Faulty VTC Oil Control Solenoid or circuit
– Faulty VTC Actuator
– Engine mechanical problems

Tech notes

An stretched timing chain or damaged tensioner can also caused triggered the P1009 code. Before replacing timing chain or tensioner, check engine oil level and condition. Replaced engine oil and filter with factory recommend oil weight if necessary.

There is a factory service bulletin for the following Honda Models:
2005