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

The VVT (Variable Valve Timing) system adjusts the intake and exhaust valve timing to improve driveability. The engine oil pressure turns the camshaft timing gear to adjust the valve timing. The camshaft timing oil control valve is a solenoid valve and switches the engine oil line. The valve moves when the ECM applies 12 volts to the solenoid. The ECM changes the energizing time of the solenoid (duty cycle) in accordance with the camshaft position, crankshaft position, throttle position, etc.

A01FDEDE18
DTC No. DTC Detection Condition Trouble Area
P0013

Open or short in camshaft timing oil control valve assembly for exhaust camshaft (bank 1) circuit

(1 trip detection logic).

  • Open or short in camshaft timing oil control valve assembly for exhaust camshaft (bank 1) circuit

  • Camshaft timing oil control valve assembly for exhaust camshaft (bank 1)

  • ECM
P0023

Open or short in camshaft timing oil control valve assembly for exhaust camshaft (bank 2) circuit

(1 trip detection logic).

  • Open or short in camshaft timing oil control valve assembly for exhaust camshaft (bank 2) circuit

  • Camshaft timing oil control valve assembly for exhaust camshaft (bank 2)

  • ECM

MONITOR DESCRIPTION

This DTC is designed to detect an open or short in the camshaft timing oil control valve assembly (for exhaust camshaft) circuit. If the camshaft timing oil control valve assembly duty-cycle is excessively high or low while the engine switch on (IG) or the engine is running, the ECM will illuminate the MIL and store the DTC.

MONITOR STRATEGY

Required sensors/Components Camshaft timing oil control valve assembly for exhaust camshaft
Frequency of operation Continuous
MIL operation Immediately

CONFIRMATION DRIVING PATTERN


  1. Connect the GTS to the DLC3.

  2. Turn the engine switch on (IG) and turn the GTS on.

  3. Clear DTCs (even if no DTCs are stored, perform the clear DTC operation)

  4. Turn the engine switch off and wait for at least 30 seconds.

  5. Turn the engine switch on (IG) and turn the GTS on.

  6. Wait 5 seconds or more.

  7. Enter the following menus: Powertrain / Engine and ECT / Trouble Codes.

  8. Read pending DTCs.

    Tech Tips


    • If a pending DTC is output, the system is malfunctioning.

    • If a pending DTC is not output, perform the following procedure.

  9. Enter the following menus: Powertrain / Engine and ECT / Utility / All Readiness.

  10. Input the DTC: P0013 or P0023.

  11. Check the DTC judgment result.

    Tester Display Description
    NORMAL

    • DTC judgment completed

    • System normal
    ABNORMAL

    • DTC judgment completed

    • System abnormal
    INCOMPLETE

    • DTC judgment not completed

    • Perform driving pattern after confirming DTC enabling conditions
    N/A

    • Unable to perform DTC judgment

    • Number of DTCs which do not fulfill DTC preconditions has reached ECU memory limit

    Tech Tips


    • If the judgment result shows NORMAL, the system is normal.

    • If the judgment result shows ABNORMAL, the system has a malfunction.

    • If the judgment result shows INCOMPLETE or N/A, perform the Confirmation Driving Pattern and the DTC judgment result again.

WIRING DIAGRAM

A01FEL7E01

INSPECTION PROCEDURE

Tech Tips


  • If DTC P0013 is displayed, check the bank 1 VVT system for exhaust camshaft circuit.

  • If DTC P0023 is displayed, check the bank 2 VVT system for exhaust camshaft circuit.

  • Bank 1 refers to the bank that includes the No. 1 cylinder*.

    *: The No. 1 cylinder is the cylinder which is farthest from the transmission.

  • Bank 2 refers to the bank that does not include the No. 1 cylinder.

  • 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. CHECK FOR DTC (DTC P0013 OR P0023)


    1. Clear the DTCs after recording the freeze frame data and DTCs Click here.

    2. Turn the engine switch off.

    3. Start the engine and allow it to idle. Then check for DTCs.

    4. Check that P0013 or P0023 is not output.

      OK
      P0013 or P0023 is not output.

    NG

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

    OK

    CHECK FOR INTERMITTENT PROBLEMS Click here

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


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


    NG

    REPLACE CAMSHAFT TIMING OIL CONTROL VALVE ASSEMBLY (FOR EXHAUST CAMSHAFT) 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
      F31-1 - F2-4 (OE1+) Always Below 1 Ω
      F31-2 - F2-3 (OE1-) Always Below 1 Ω
      F14-1 - F3-18 (OE2+) Always Below 1 Ω
      F14-2 - F3-28 (OE2-) Always Below 1 Ω
      F31-1 or F2-4 (OE1+) - Body ground Always 10 kΩ or higher
      F31-2 or F2-3 (OE1-) - Body ground Always 10 kΩ or higher
      F14-1 or F3-18 (OE2+) - Body ground Always 10 kΩ or higher
      F14-2 or F3-28 (OE2-) - Body ground Always 10 kΩ or higher

    NG

    REPAIR OR REPLACE HARNESS OR CONNECTOR

    OK

    REPLACE ECM Click here