SFI SYSTEM(w/o Canister Pump Module), Diagnostic DTC:P0335, P0339

DTC Code DTC Name
P0335 Crankshaft Position Sensor "A" Circuit
P0339 Crankshaft Position Sensor "A" Circuit Intermittent

DESCRIPTION

The crankshaft position sensor consists of a crankshaft angle sensor rotor and Magnetic Resistance Element (MRE) type sensor. The crankshaft angle sensor rotor has 34 teeth at 10° intervals (2 teeth are missing for detecting top dead center), and is installed to the rear end of the crankshaft.

The crankshaft position sensor output 34 rotation signals per engine speed. The ECM uses the G2 signal to distinguish between the cylinders, and uses the NE signal to detect the crankshaft position and engine speed.

DTC No. Detection Item DTC Detection Condition Trouble Area MIL Memory
P0335 Crankshaft Position Sensor "A" Circuit

Either of the following conditions is met (1 trip detection logic):


  • No crankshaft position sensor signal to ECM while cranking.

  • No crankshaft position sensor signal to ECM at engine speed of 450 rpm or higher.

  • Open or short in crankshaft position sensor circuit

  • Crankshaft position sensor

  • Crankshaft angle sensor rotor

  • ECM

 Comes on DTC stored
P0339 Crankshaft Position Sensor "A" Circuit Intermittent

Under conditions (a), (b) and (c), no crankshaft position sensor signal to ECM for 0.05 seconds or more (1 trip detection logic):

(a) Engine speed 1000 rpm or higher.

(b) Starter signal off.

(c) 3 seconds or more have elapsed since starter signal switched from on to off.

  • Open or short in crankshaft position sensor circuit

  • Crankshaft position sensor

  • Crankshaft angle sensor rotor

  • ECM

 Does not come on DTC stored

MONITOR DESCRIPTION

A DTC will be stored if any of the following occurs:


MONITOR STRATEGY

Required Sensors/Components (Main) Crankshaft position sensor
Required Sensors/Components (Related) Camshaft 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 20 seconds or more [A].

  10. Enter the following menus: Powertrain / Engine / 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 / Utility / All Readiness.

  13. Input the DTC: P0335 or P0339.

  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

B000Y86E08
*a 1.5 kΩ
*b Crankshaft Position Sensor
*c Camshaft Position Sensor

CAUTION / NOTICE / HINT

Tech Tips


  • If no problem is found through this diagnostic troubleshooting procedure, troubleshoot the engine mechanical system.

  • The engine speed can be checked by using the GTS. To perform the check, follow the procedures below:


    1. Connect the GTS to the DLC3.

    2. Start the engine.

    3. Turn the GTS on.

    4. Enter the following menus: Powertrain / Engine / Data List / All Data / Engine Speed.


    • The engine speed may be indicated as zero despite the engine running normally. This is caused by a lack of NE signals from the crankshaft position sensor. Alternatively, the engine speed may be indicated as lower than the actual engine speed if the crankshaft position sensor output voltage is insufficient.

  • 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

    B000VZ4C56
    *a

    Front view of wire harness connector

    (to Crankshaft Position Sensor)

    1. Disconnect the crankshaft 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
      E1-3 (VC) - Body ground Engine switch on (IG) 4.5 to 5.5 V
      E1-1(NE) - 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 Condition Specified Condition
      E1-3(VC) - E1-1(NE) Engine switch off 1.425 to 1.575 kΩ
      E1-2(NE-) - Body ground Always Below 1 Ω
      Result
      Proceed to
      OK
      NG

    NG

    CHECK HARNESS AND CONNECTOR (CRANKSHAFT POSITION SENSOR - ECM) Click here

    OK

  2. CHECK SENSOR INSTALLATION AND CONDUCT VISUAL INSPECTION (CRANKSHAFT POSITION SENSOR)

    B000W99C21
    *a OK
    *b NG
    *c Clearance

    1. Visually check the crankshaft position sensor for damage.

    2. Check the crankshaft position sensor installation condition.

      OK
      The crankshaft position sensor does not have any damage and is installed properly.
      Result
      Proceed to
      OK
      NG

    NG

    SECURELY REINSTALL CRANKSHAFT POSITION SENSOR Click here

    OK

  3. CHECK CRANKSHAFT ANGLE SENSOR ROTOR (TEETH OF SENSOR ROTOR)


    1. Check the teeth of the crankshaft angle sensor rotor.

      OK
      Crankshaft angle sensor rotor does not have any cracks or deformation.
      Result
      Proceed to
      OK
      NG

    OK

    REPLACE CRANKSHAFT POSITION SENSOR Click here

    NG

    REPLACE CRANKSHAFT ANGLE SENSOR ROTOR Click here

  4. CHECK HARNESS AND CONNECTOR (CRANKSHAFT POSITION SENSOR - ECM)


    1. Disconnect the crankshaft position sensor connector.

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

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

    4. Disconnect the camshaft position sensor connector.

    5. Disconnect the ECM connector.

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

      Standard Resistance
      Tester Connection Condition Specified Condition
      E1-1 (NE) - G42-134 (NE+) Always Below 1 Ω
      E1-2 (NE-) - G42-102 (NE-) Always Below 1 Ω
      E1-3 (VC) - G42-90 (VC) Always Below 1 Ω
      E1-1 (NE) or G42-134 (NE+) - Body ground and other terminals Always 10 kΩ or higher
      E1-2 (NE-) or G42-102 (NE-) - Body ground and other terminals Always 10 kΩ or higher
      E1-3 (VC) or G42-90 (VC) - 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