P1690 Oil Control Valve/Variable Valve Timing Malfunction
What does P1690 mean on a Toyota?
P1690 — Oil Control Valve/Variable Valve Timing Malfunction. This Toyota-enhanced code applies to Camry, Corolla, RAV4 with VVT-i.
Common causes of P1690
- Failed oil control valve
- Sludged valve or screen
- Low oil level or pressure
- Open OCV circuit
- Worn timing chain
How to fix P1690
- Verify oil level, grade and pressure
- Remove and inspect the OCV screen
- Test OCV resistance and response
- Check timing chain condition
- Service oil or replace the OCV