SFI SYSTEM(w/ Canister Pump Module), Diagnostic DTC:P1342, P1343

DTC Code DTC Name
P1342 Camshaft Position Sensor "A" Low Input (MRE)
P1343 Camshaft Position Sensor "A" High Input (MRE)

DESCRIPTION

Refer to DTC P1340.

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DTC No. Detection Item DTC Detection Condition Trouble Area MIL Memory
P1342 Camshaft Position Sensor "A" Low Input (MRE) Output voltage of camshaft position sensor less than 0.3 V for 4 seconds (1 trip detection logic).

  • Open or short in camshaft position sensor circuit

  • Camshaft position sensor

  • ECM

 Comes on DTC stored
P1343 Camshaft Position Sensor "A" High Input (MRE) Output voltage of camshaft position sensor higher than 4.7 V for 4 seconds (1 trip detection logic).

  • Open or short in camshaft position sensor circuit

  • Camshaft position sensor

  • ECM

 Comes on DTC stored

MONITOR DESCRIPTION

If the output voltage transmitted by the vvt sensor remains low or high, the ECM interprets 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 engine switch on (IG).

  3. Turn the GTS on.

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

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

  6. Turn the engine switch on (IG).

  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 / Trouble Codes.

  11. Read the pending DTC [B].

    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 / Utility / All Readiness.

  13. Input the DTC: P1342 or P1343.

  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 ABNORMAL, the system has a malfunction.

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

    • If the judgment result shows INCOMPLETE or N/A, perform steps [A] and [B] again.

WIRING DIAGRAM

Refer to P0335.

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CAUTION / NOTICE / HINT

Tech Tips


  • 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 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 HARNESS AND CONNECTOR

    B000VZ4C58
    *a

    Front view of wire harness connector

    (to Camshaft Position Sensor)

    1. Disconnect the camshaft position sensor connector.

    2. Turn the engine switch on (IG).

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

      Standard Voltage
      Tester Connection Switch Condition Specified Condition
      G66-3 (VC) - Body ground Engine switch on (IG) 4.5 to 5.5 V
      G66-1 (G22+) - Body ground Engine switch on (IG) 3.0 to 5.5 V

    4. Turn the engine 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 Switch Condition Specified Condition
      G66-3(VC) - G66-1(G22+) IG OFF 1.425 to 1.575 kΩ
      G66-2(G22-) - Body ground Always Below 1 Ω
      Result
      Proceed to
      OK
      NG

    OK

    REPLACE CAMSHAFT POSITION SENSOR Click here

    NG

  2. CHECK HARNESS AND CONNECTOR (CAMSHAFT POSITION SENSOR - ECM)


    1. Disconnect the VVT sensor (for intake camshaft) connectors.

    2. Disconnect the ECM connector.

    3. Disconnect the crankshaft position sensor connector.

    4. Disconnect the VVT sensor (for exhaust camshaft) connectors.

    5. Disconnect the camshaft position sensor connector.

    6. Disconnect the canister pump module connector.

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

      Standard Resistance
      Tester Connection Condition Specified Condition
      G66-3 (VC) - G42-90 (VC) Always Below 1 Ω
      G66-1 (G22+) - G42-133 (G2+) Always Below 1 Ω
      G66-2 (G22-) - G42-101 (G2-) Always Below 1 Ω
      G66-3 (VC) or G42-90 (VC) - Body ground and other terminals Always 10 kΩ or higher
      G66-1 (G22+) or G42-133 (G2+) - Body ground and other terminals Always 10 kΩ or higher
      G66-2 (G22-) or G42-101 (G2-) - 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