SFI 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 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.

A209140E23

DTC No.

Detection Item

DTC Detection Condition

Trouble Area

MIL

Memory

P0010

Camshaft Position "A" Actuator Circuit (Bank 1)

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

Comes on

DTC stored
Tip:

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

WIRING DIAGRAM

A322486E01

CONFIRMATION DRIVING PATTERN

DTC P0010 is detected when the engine idles for approximately 15 seconds.

CAUTION / NOTICE / HINT

Note:

After replacing the ECM, perform idle learning.

Click here

Tip:

Read freeze frame data using the GTS. The ECM records vehicle and driving condition information as freeze frame data the moment a DTC is stored. 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.

PROCEDURE

  1. 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).

      Powertrain > Engine and ECT > Active Test

      Tester Display

      Control the VVT System (Bank1)

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

    Result

    Result

    Proceed to

    Engine changes from steady idling to rough idling or engine stalling

    A

    No change in engine speed

    B
    A

    CHECK FOR INTERMITTENT PROBLEMS

    Click here

    B

  2. INSPECT CAMSHAFT TIMING OIL CONTROL VALVE ASSEMBLY

    1. Inspect the camshaft timing oil control valve assembly.

      Click here

    Result

    Proceed to

    OK

    NG
    NG

    REPLACE CAMSHAFT TIMING OIL CONTROL VALVE ASSEMBLY

    Click here

    OK

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

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

    2. Disconnect the ECM connector.

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

      Standard Resistance

      Tester Connection

      Condition

      Specified Condition

      B8-2 - B31-75 (OCV+)

      Always

      Below 1 Ω

      B8-1 - B31-74 (OCV-)

      Always

      Below 1 Ω

      B8-2 or B31-75 (OCV+) - Body ground

      Always

      10 kΩ or higher

      B8-1 or B31-74 (OCV-) - Body ground

      Always

      10 kΩ or higher

    Result

    Proceed to

    OK

    NG
    OK

    REPLACE ECM

    Click here

    NG

    REPAIR OR REPLACE HARNESS OR CONNECTOR