SFI SYSTEM, Diagnostic DTC:P0013, P0023

DTC Code DTC Name
P0013 Camshaft Position "B" Actuator Circuit / Open (Bank 1)
P0023 Camshaft Position "B" Actuator Circuit / Open (Bank 2)

DESCRIPTION

Tech Tips

These DTCs relate to the oil control valve for the exhaust camshaft.

The variable valve timing system controls the exhaust camshaft to provide the optimal valve timing for every driving condition. This control is performed based on the signals, such as intake air volume, throttle position and engine coolant temperature.

The ECM controls the oil control valve, based on the signals output from the sensors. The variable valve timing controller regulates the exhaust camshaft angle using oil pressure through the oil control valve. As a result, the relative position between the camshaft and the crankshaft becomes optimal, and the engine torque and fuel economy improve, and exhaust emissions decrease under overall driving conditions. Also, the ECM detects the actual valve timing using the signals from the camshaft position sensor and the crankshaft position sensor, and performs feedback control. This is how target valve timing is achieved by the ECM.

A017FJ5E16
DTC No. DTC Detection Condition Trouble Area
P0013 Open or short in oil control valve exhaust camshaft circuit (1 trip detection logic)

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

  • Oil control valve for exhaust camshaft (bank1)

  • ECM
P0023 Open or short in oil control valve exhaust camshaft circuit (1 trip detection logic)

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

  • Oil control valve for exhaust camshaft (bank 2)

  • ECM

WIRING DIAGRAM

A017C37E39

INSPECTION PROCEDURE

Tech Tips


  • If DTC P0013 is displayed, check the exhaust camshaft circuit for the right bank variable valve timing system.

  • If DTC P0023 is displayed, check the exhaust camshaft circuit for the left bank variable valve timing system.

  • Read freeze frame data using the intelligent tester. The ECM records vehicle and driving condition information as freeze frame data the moment a DTC is stored. When troubleshooting, freeze frame data can be helpful in determining whether the vehicle was running or stopped, whether the engine was warmed up or not, whether the air fuel ratio was lean or rich, as well as other data recorded at the time of a malfunction.

PROCEDURE


  1. CHECK WHETHER DTC OUTPUT RECURS (DTC P0013 OR P0023)


    1. Connect an intelligent tester to the DLC3.

    2. Turn the ignition switch on (IG).

    3. Turn the tester on.

    4. Select the following menu items: Powertrain / Engine and ECT / DTC / Clear.

    5. Clear the DTCs.

    6. Start the engine and warm it up.

    7. Allow the engine to idle 1 minute or more.

    8. Select the following menu items: Powertrain / Engine and ECT / DTC.

    9. Read the DTCs.

      Result
      Result Proceed to
      P0013 or P0023 A
      No output B

    B

    CHECK FOR INTERMITTENT PROBLEMS Click here

    A

  2. INSPECT CAMSHAFT TIMING OIL CONTROL VALVE ASSEMBLY (FOR EXHAUST CAMSHAFT)


    1. A017DB8E03

      Disconnect the exhaust camshaft timing oil control valve connector.

    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

    3. Reconnect the oil control valve connector.


    NG

    REPLACE CAMSHAFT TIMING OIL CONTROL VALVE ASSEMBLY (FOR EXHAUST CAMSHAFT) Click here

    OK

  3. CHECK ECM (OIL CONTROL VALVE SIGNAL)


    1. A017ENLE09

      Disconnect the camshaft timing oil control valve connector.

    2. Disconnect the ECM connector.

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

      Standard resistance (Check for open)
      Bank 1
      Tester Connection Condition Specified Condition
      B3-26 (OE1+) - B43-1 Always Below 1 Ω
      B3-31 (OE1-) - B43-2 Always Below 1 Ω
      Bank 2
      Tester Connection Condition Specified Condition
      B3-27 (OE2+) - B40-1 Always Below 1 Ω
      B3-32 (OE2-) - B40-2 Always Below 1 Ω
      Standard resistance (Check for short)
      Bank 1
      Tester Connection Condition Specified Condition
      B3-26 (OE1+) or B43-1 - Body ground Always 10 kΩ or higher
      B3-31 (OE1-) or B43-2 - Body ground Always 10 kΩ or higher
      Bank 2
      Tester Connection Condition Specified Condition
      B3-27 (OE2+) or B40-1 - Body ground Always 10 kΩ or higher
      B3-32 (OE2-) or B40-2 - Body ground Always 10 kΩ or higher

    4. Reconnect the ECM connector.

    5. Reconnect the oil control valve connector.


    NG

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

    OK

    REPLACE ECM Click here