What causes P1690 on a Toyota?

Failed oil control valve Sludged valve or screen Low oil level or pressure Open OCV circuit Worn timing chain

How do I fix P1690 on a Toyota?

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

P1690 Oil Control Valve/Variable Valve Timing Malfunction

Q: What does P1690 mean on a Toyota?

P1690. Oil Control Valve/Variable Valve Timing Malfunction. Applies to Camry, Corolla, RAV4 with VVT-i.

Category: Powertrain - Ignition
Severity: Check Engine Light
Applies to: Camry, Corolla, RAV4 with VVT-i

This fault is part of the Toyota VVT-i codes guide. It covers the system and the order to check it.

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

Sources and review

Last updated 2026-09-06.