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2002 TOYOTA SEQUOIA
4.7L V8•4WD•AUTOMATIC•gas•2UZ-FE
8 active safety recalls on this vehicle — view recalls
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Repairs0Labor498Torque4330Fluid10DTC967Battery1Maintenance0Recalls8
P1656moderate severityPowertrain

OCV Circuit Malfunction

on 2002 Toyota Sequoia 4.7L V8 · 4WD

What this code means

The ECM detected a fault in the Oil Control Valve circuit for the VVT system.

Symptoms

  • CEL
  • Rough idle
  • Poor performance
  • Reduced power
  • Engine noise

Common causes

  • Faulty OCV
  • Damaged wiring
  • Low oil pressure
  • Dirty oil

Diagnostic steps

  1. Test OCV resistance
  2. Check oil level/condition
  3. Inspect wiring
  4. Command OCV with scan tool

Repair notes

Replace OCV. Change oil if dirty.

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🔧 Database maintained under the daily editorial review of Chris Hackleman · Master Technician · 20+ years and Jeff Moore · Master Mechanic · 20+ years. Spot an error? Use the Help link above — a human reads every report.
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