SFI SYSTEM (w/o Electronic Throttle Control System), Diagnostic DTC:P0010

DTC Code DTC Name
P0010 Camshaft Position "A" Actuator Circuit (Bank 1)

DESCRIPTION

The Variable Valve Timing (VVT) system includes the ECM, Camshaft Timing Oil Control Valve (OCV) and VVT controller. The ECM sends a target "duty-cycle" control signal to the OCV. This control signal, applied to the OCV, regulates the oil pressure supplied to the VVT controller. Camshaft timing control is performed based on engine operating conditions such as intake air volume, throttle position and engine coolant temperature.

The ECM controls the OCV based on the signals from several sensors. The VVT controller regulates the intake camshaft angle using oil pressure through the OCV. As a result, the relative position between the camshaft and crankshaft is optimized, engine torque and fuel economy improve, and the exhaust emissions drop. The ECM detects actual valve timing using signals from the camshaft and crankshaft position sensors. The ECM performs feedback control and verifies target valve timing.

A0136ZVE01
DTC No. DTC Detection Condition Trouble Area
P0010 Open or short in Camshaft Timing Oil Control Valve (OCV) circuit (3 trip detection logic)

  • Open or short in camshaft timing oil control valve circuit

  • Camshaft timing oil control valve (OCV)

  • ECM

Tech Tips


  • The IC built into the ECM detects an open or short in the camshaft timing oil control valve circuit.

  • This DTC is detected when the engine idles for approximately 15 seconds.

WIRING DIAGRAM

A013763E01

INSPECTION PROCEDURE

Note

Inspect the fuses for circuits related to this system before performing the following inspection procedure.

PROCEDURE


  1. PERFORM ACTIVE TEST USING INTELLIGENT TESTER (OCV OPERATION)


    1. Start the engine and warm it up.

    2. Turn the ignition switch off.

    3. Connect the intelligent tester to the DLC3.

    4. Start the engine and turn the tester on.

    5. Enter the following menus: Powertrain / Engine and ECT / Active Test / VVT Control (Bank 1).

    6. Check the engine speed when operating the Camshaft Timing Oil Control Valve (OCV) using the intelligent tester.

      Result
      Tester Operation Specified Condition Proceed to
      OCV is OFF to ON Engine changes from steady idling to rough idling or engine stalling A
      OCV is OFF to ON No change in engine speed B

    A

    CHECK FOR INTERMITTENT PROBLEMS Click here

    B

  2. INSPECT CAMSHAFT TIMING OIL CONTROL VALVE


    1. A0137PI

      Disconnect the OCV connector.

    2. Measure the resistance according to the value(s) in the table below.

      Standard Resistance
      Tester Connection Condition Specified Condition
      1 - 2 Always 6.9 to 7.9 Ω

    NG

    REPLACE CAMSHAFT TIMING OIL CONTROL VALVE Click here

    OK

  3. CHECK HARNESS AND CONNECTOR (CAMSHAFT TIMING OIL CONTROL VALVE - ECM - RELAY BLOCK)


    1. A0137ZAE01

      Disconnect the OCV connector.

    2. Disconnect the ECM connector.

    3. Remove the engine room relay block.

    4. Remove the engine room relay block lower cover.

    5. Measure the resistance according to the value(s) in the table below.

      Standard Resistance (Check for Open)
      Tester Connection Condition Specified Condition
      B12-2 (OCV-) - B25-42 (OCV-) Always Below 1 Ω
      B12-1 (OCV+) - 1C-5 Always Below 1 Ω
      Standard Resistance (Check for Short)
      Tester Connection Condition Specified Condition
      B12-2 (OCV-) or B25-42 (OCV-) - Body ground Always 10 kΩ or higher
      B12-1 (OCV+) or 1C-5 - Body ground Always 10 kΩ or higher

    6. Reconnect the OCV connector.

    7. Reconnect the ECM connector.

    8. Reinstall the engine room relay block.


    NG

    REPAIR OR REPLACE HARNESS OR CONNECTOR

    OK

    REPLACE ECM Click here