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SFI SYSTEM, Diagnostic DTC:P0010

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

The Variable Valve Timing (VVT) system includes the ECM, camshaft timing oil control valve assembly and VVT controller. The ECM sends a target "duty-cycle" control signal to the camshaft timing oil control valve assembly. This control signal, applied to the camshaft timing oil control valve assembly, 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 camshaft timing oil control valve assembly based on the signals from several sensors. The VVT controller regulates the intake camshaft angle using oil pressure through the camshaft timing oil control valve assembly. As a result, the relative positions of the camshaft and crankshaft are 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.

DTC No. DTC Detection Condition Trouble Area
P0010 Open or short in camshaft timing oil control valve assembly circuit (3 trip detection logic).

  • Open or short in camshaft timing oil control valve assembly circuit

  • Camshaft timing oil control valve assembly

  • ECM
Tip:

  • The IC, built into the ECM, detects opens or shorts in the camshaft timing oil control valve assembly circuit.

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

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WIRING DIAGRAM

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CAUTION / NOTICE / HINT

Note:

Perform idle learning after replacing the ECM (Click here).

Tip:

Read freeze frame data using the GTS. Freeze frame data records the engine condition when malfunctions are detected. When troubleshooting, freeze frame data can help determine if the vehicle was moving or stationary, if the engine was warmed up or not, if the air fuel ratio was lean or rich, and other data from the time the malfunction occurred.

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PROCEDURE


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    PERFORM ACTIVE TEST USING GTS (CONTROL THE VVT SYSTEM (BANK 1))


    1. Connect the GTS to the DLC3.

    2. Start the engine.

    3. Turn the GTS on.

    4. Warm up the engine.

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

    6. Check the engine speed when operating the camshaft timing oil control valve assembly using the GTS.

      Table 1. Result
      Result Proceed to
      Engine changes from steady idling to rough idling or engine stalling A
      No change in engine speed B

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    INSPECT CAMSHAFT TIMING OIL CONTROL VALVE ASSEMBLY


    1. Inspect the camshaft timing oil control valve assembly (Click here).


  3. Click here

    CHECK HARNESS AND CONNECTOR (CAMSHAFT TIMING OIL CONTROL VALVE ASSEMBLY - ECM)


    1. Disconnect the B63 camshaft timing oil control valve assembly connector.

    2. Disconnect the B97 ECM connector (for LHD).

    3. Disconnect the B101 ECM connector (for RHD).

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

      Standard Resistance
      Table 2. for LHD
      Tester Connection Condition Specified Condition
      B63-1 - B97-74 (OCV-) Always Below 1 Ω
      B63-2 - B97-75 (OCV+) Always Below 1 Ω
      B63-1 or B97-74 (OCV-) - Body ground Always 10 kΩ or higher
      B63-2 or B97-75 (OCV+) - Body ground Always 10 kΩ or higher
      Table 3. for RHD
      Tester Connection Condition Specified Condition
      B63-1 - B101-74 (OCV-) Always Below 1 Ω
      B63-2 - B101-75 (OCV+) Always Below 1 Ω
      B63-1 or B101-74 (OCV-) - Body ground Always 10 kΩ or higher
      B63-2 or B101-75 (OCV+) - Body ground Always 10 kΩ or higher

    • OK

      REPLACE ECM (Click here)

    • NG

      REPAIR OR REPLACE HARNESS OR CONNECTOR