SFI SYSTEM, Diagnostic DTC:P0342, P0343

DTC Code DTC Name
P0342 Camshaft Position Sensor "A" Circuit Low Input (Bank 1 or Single Sensor)
P0343 Camshaft Position Sensor "A" Circuit High Input (Bank 1 or Single Sensor)

DESCRIPTION

Refer to DTC P0340.

Click here

DTC No. Detection Item DTC Detection Condition Trouble Area MIL Memory
P0342 Camshaft Position Sensor "A" Circuit Low Input (Bank 1 or Single Sensor) The output voltage of the camshaft position sensor (for intake camshaft) is less than 0.3 V for 4 seconds or more (1 trip detection logic).

  • Open or short in camshaft position sensor (for intake camshaft) circuit

  • Camshaft position sensor (for intake camshaft)

  • ECM

 Comes on DTC stored
P0343 Camshaft Position Sensor "A" Circuit High Input (Bank 1 or Single Sensor) The output voltage of the camshaft position sensor (for intake camshaft) is higher than 4.7 V for 4 seconds or more (1 trip detection logic).

  • Open or short in camshaft position sensor (for intake camshaft) circuit

  • Camshaft position sensor (for intake camshaft)

  • ECM

 Comes on DTC stored

MONITOR DESCRIPTION

If the output voltage transmitted by the camshaft position sensor remains low or high, the ECM interperts this as a malfunction in the sensor circuit, illuminates the MIL and stores a DTC.

MONITOR STRATEGY

Required Sensors/Components (Main) Camshaft position sensor
Required Sensors/Components (Related) Crankshaft position sensor
Frequency of Operation Continuous

CONFIRMATION DRIVING PATTERN


  1. Connect the GTS to the DLC3.

  2. Turn the ignition switch to ON.

  3. Turn the GTS on.

  4. Clear the DTCs (even if no DTCs are stored, perform the clear DTC procedure).

  5. Turn the ignition switch off and wait for at least 30 seconds.

  6. Turn the ignition switch to ON.

  7. Turn the GTS on.

  8. Start the engine.

  9. Idle the engine for 10 seconds or more [A].

  10. Enter the following menus: Powertrain / Engine and ECT / Trouble Codes [B].

  11. Read the 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.

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

  13. Input the DTC: P0342 or P0343.

  14. Check the DTC judgment result.

    GTS 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 steps [A] and [B] again.

WIRING DIAGRAM

Refer to DTC P0340.

Click here

CAUTION / NOTICE / HINT

Tech Tips


  • If no problem is found through this diagnostic troubleshooting procedure, there may be a mechanical problem with the engine.

  • 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 HARNESS AND CONNECTOR

    B0071SRC73
    *a

    Front view of wire harness connector

    (to Camshaft Position Sensor (for Intake Camshaft))

    Tech Tips

    Make sure that the connector is properly connected. If it is not, securely connect it and check for DTCs again.


    1. Disconnect the camshaft position sensor (for intake camshaft) connector.

    2. Turn the ignition switch to ON.

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

      Standard Voltage
      Tester Connection Switch Condition Specified Condition
      C17-3 (VC) - Body ground Ignition switch ON 4.5 to 5.5 V
      C17-1 (VVI+) - Body ground Ignition switch ON 3.0 to 5.0 V

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

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

      Standard Resistance
      Tester Connection Condition Specified Condition
      C17-3 (VC) - C17-1 (VVI+) Ignition switch off 1.425 to 1.575 kΩ
      C17-2 (VVI-) - Body ground Always Below 1 Ω
      Result
      Proceed to
      OK
      NG

    OK

    REPLACE CAMSHAFT POSITION SENSOR (FOR INTAKE CAMSHAFT) Click here

    NG

  2. CHECK HARNESS AND CONNECTOR (VVT SENSOR (FOR INTAKE CAMSHAFT) - ECM)


    1. Disconnect the camshaft position sensor (for intake camshaft) 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
      C17-3 (VC) - C58-116 (VCV1) Always Below 1 Ω
      C17-1 (VVI+) - C58-82 (VV1+) Always Below 1 Ω
      C17-2 (VVI-) - C58-115 (VV1-) Always Below 1 Ω
      C17-3 (VC) or C58-116 (VCV1) - Body ground and other terminals Always 10 kΩ or higher
      C17-1 (VVI+) or C58-82 (VV1+) - Body ground and other terminals Always 10 kΩ or higher
      C17-2 (VVI-) or C58-115 (VV1-) - Body ground and other terminals Always 10 kΩ or higher
      Result
      Proceed to
      OK
      NG

    OK

    REPLACE ECM Click here

    NG

    REPAIR OR REPLACE HARNESS OR CONNECTOR