What causes P1010 on a Toyota?

Failed VVTL oil control valve Open or shorted OCV circuit Sludged oil blocking the valve screen Low oil level Corroded OCV connector

How do I fix P1010 on a Toyota?

Check oil level and condition first Test OCV resistance against spec Remove and inspect the valve screen for sludge Verify power and command at the connector Replace the OCV after circuit confirmation

P1010 Oil Control Valve/Variable Valve Lift LH Bank Circuit Malfunction

Q: What does P1010 mean on a Toyota?

P1010. Oil Control Valve/Variable Valve Lift LH Bank Circuit Malfunction. Applies to Camry, RAV4, Highlander with VVTL-i.

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

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

What does P1010 mean on a Toyota?

P1010. Oil Control Valve/Variable Valve Lift LH Bank Circuit Malfunction. This Toyota-enhanced code applies to Camry, RAV4, Highlander with VVTL-i.

Common causes of P1010

Failed VVTL oil control valve
Open or shorted OCV circuit
Sludged oil blocking the valve screen
Low oil level
Corroded OCV connector

How to fix P1010

Check oil level and condition first
Test OCV resistance against spec
Remove and inspect the valve screen for sludge
Verify power and command at the connector
Replace the OCV after circuit confirmation

Sources and review

Last updated 2026-09-06.