Diagnosis & Repair

For diagnosis and repair procedure with Toyota Hand-held tester or an Enhanced OBD II scan tool, see Fig 1 & Fig 2 .

For diagnosis and repair procedure with OBD II scan tool (Non Enhanced), see Fig 3-Fig 5 .

For OCV circuit wiring diagram, see Fig 6. VVT OCV is located at intake manifold side of cylinder head, near timing chain end of engine. See Fig 7. Oil filter for VVT OCV is located behind plug, just below VVT OCV. See Fig 8.

For ECM location, see Figure. For ECM connector terminal view, see Figure.

For testing of systems or components, see BASIC DIAGNOSTIC PROCEDURES - 4-CYLINDER article or SYSTEM & COMPONENT TESTING - 4-CYLINDER article. For removal and installation of components, see REMOVAL & INSTALLATION - 4-CYLINDER article.

Fig 1: DTC P1349 Diagnostic Procedure Using Hand Held Tester (Steps 1-4)

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Fig 2: DTC P1349 Diagnostic Procedure Using Hand Held Tester (Steps 5-7)

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Fig 3: DTC P1349 Diagnostic Procedure Using OBD II Scan Tool (Steps 1-2)

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Fig 4: DTC P1349 Diagnostic Procedure Using OBD II Scan Tool (Steps 3-5)

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Fig 5: DTC P1349 Diagnostic Procedure Using OBD II Scan Tool (Steps 6-7)

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Fig 6: Oil Control Valve Circuit Wiring Diagram

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Fig 7: Locating Variable Valve Timing Oil Control Valve

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Fig 8: Locating Oil Filter For Variable Valve Timing Oil Control Valve

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