SFI SYSTEM, Diagnostic DTC:P0013

DTC Code DTC Name
P0013 Camshaft Position "B" Actuator Circuit / Open (Bank 1)

DESCRIPTION

The Variable Valve Timing (VVT) system includes the ECM, exhaust camshaft timing oil control valve assembly and VVT controller. The ECM sends a target duty-cycle control signal to the exhaust camshaft timing oil control valve assembly. This control signal regulates the oil pressure supplied to the VVT controller. Camshaft timing control is performed according to engine operating conditions such as the intake air volume, throttle valve position and engine coolant temperature. The ECM controls the exhaust camshaft timing oil control valve assembly, based on the signals transmitted by several sensors. The VVT controller regulates the exhaust camshaft angle using oil pressure through the exhaust camshaft timing oil control valve assembly. As a result, the relative positions of the camshaft and crankshaft are optimized, the engine torque and fuel economy improve, and the exhaust emissions decrease under overall driving conditions. The ECM detects the actual exhaust valve timing using signals from the camshaft and crankshaft position sensors, and performs feedback control. This is how the target intake valve timing is verified by the ECM.

A005U40E22
DTC No. DTC Detection Condition Trouble Area
P0013

Open or short in camshaft timing oil control valve for exhaust camshaft circuit

(1 trip detection logic)

  • Open or short in camshaft timing oil control valve circuit for exhaust camshaft

  • Camshaft timing oil control valve assembly for exhaust camshaft

  • ECM

WIRING DIAGRAM

A005VCTE06

INSPECTION PROCEDURE

Tech Tips

Read freeze frame data using an intelligent tester. Freeze frame data records the engine conditions 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.

PROCEDURE


  1. PERFORM ACTIVE TEST USING INTELLIGENT TESTER (OPERATE CAMSHAFT TIMING OIL CONTROL VALVE)


    1. Connect the intelligent tester to the DLC3.

    2. Start the engine and turn the tester on.

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

    4. Check the engine speed when the oil control valve is operated using the intelligent tester with the engine coolant temperature is 50°C (122°F) or less.

      Tech Tips


      • When performing the Active Test, the air conditioning should be on.

      • Engine coolant temperature when engine is started should be 30°C (86°F) or less.

      OK
      Tester Operation Specified Condition
      -128% (Oil control valve OFF) Normal engine speed
      127% (Oil control valve ON) Engine idles roughly or stalls (soon after oil control valve switched from OFF to ON)

    NG

    INSPECT CAMSHAFT TIMING OIL CONTROL VALVE ASSEMBLY Click here

    OK

    CHECK FOR INTERMITTENT PROBLEMS Click here

  2. INSPECT CAMSHAFT TIMING OIL CONTROL VALVE ASSEMBLY


    1. A005SWVE01

      Remove the camshaft timing oil control valve assembly.

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

      Standard Resistance
      Tester Connection Condition Specified Condition
      1 - 2 20°C (68°F) 6.9 to 7.9 Ω
      Text in Illustration
      *1

      Component without harness connected

      (Camshaft Timing Oil Control Valve)
    3. A005UJVE01

      Apply positive (+) battery voltage to terminal 1 and negative (-) battery voltage to terminal 2. Check the valve operation.

      OK
      Valve moves quickly.

    4. Reinstall the camshaft timing oil control valve assembly.


    NG

    REPLACE CAMSHAFT TIMING OIL CONTROL VALVE ASSEMBLY Click here

    OK

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


    1. A005U8HE06
      Text in Illustration
      *1

      Front view of wire harness connector

      (to Camshaft Timing Oil Control Valve)
      *2

      Front view of wire harness connector

      (to ECM)

      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 (Check for open)
      Tester Connection Condition Specified Condition
      B23-1 - B39-75 (OE1+) Always Below 1 Ω
      B23-2 - B39-97 (OE1-) Always Below 1 Ω
      Standard Resistance (Check for short)
      Tester Connection Condition Specified Condition
      B23-1 or B39-75 (OE1+) - Body ground Always 10 kΩ or higher
      B23-2 or B39-97 (OE1-) - Body ground Always 10 kΩ or higher

    4. Reconnect the camshaft timing oil control valve assembly connector.

    5. Reconnect the ECM connector.


    NG

    REPAIR OR REPLACE HARNESS OR CONNECTOR (CAMSHAFT TIMING OIL CONTROL VALVE ASSEMBLY - ECM)

    OK

    REPLACE ECM Click here