SFI SYSTEM(w/o EGR System), Diagnostic DTC:P0335

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

DESCRIPTION

The crankshaft position sensor system consists of a crank angle sensor plate (crankshaft) and a pickup coil. The crank angle sensor plate has 34 teeth at 10° intervals (2 teeth are missing for detecting top dead center), and is installed on the crankshaft.

The crankshaft position sensor generates 34 signals per crankshaft revolution. Based on these signals, the ECM calculates the crankshaft position and engine speed. Using these calculations, the fuel injection and ignition timing are controlled.

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

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


  • No crankshaft position sensor signal to ECM while engine running.

  • Missing crankshaft position sensor signal despite camshaft sensor signal inputs normal after engine cranked.

  • Open or short in crankshaft position sensor circuit

  • Crankshaft position sensor

  • Crankshaft (crank angle sensor plate)

  • ECM

 Comes on DTC stored

MONITOR DESCRIPTION

If there is no signal from the crankshaft position sensor despite the crankshaft rotating, the ECM interprets this as a malfunction of the sensor.

MONITOR STRATEGY

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

COMPONENT OPERATING RANGE

Crankshaft position sensor

  • Crankshaft position sensor output voltage fluctuates while crankshaft is revolving

  • 34 crankshaft position sensor signals per crankshaft revolution

CONFIRMATION DRIVING PATTERN


  1. Put the engine in inspection mode (maintenance mode).

    Click here

  2. Start the engine.

  3. Idle the engine for 20 seconds or more.

WIRING DIAGRAM

A00018CE17
*a Shielded
*b Crankshaft Position Sensor

CAUTION / NOTICE / HINT

Tech Tips


  • After performing the inspection procedure for the crankshaft position sensor, if DTC P0335 is output again, check the following items related to the camshaft position sensor.


    • Installation condition of the camshaft position sensor.

    • Installation condition of the camshaft.

    • Connection of the camshaft position sensor connector.

  • 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. Turn the power switch on (IG).

    3. Turn the GTS on.

    4. Put the engine in inspection mode (maintenance mode).

      Click here

    5. Start the engine.

    6. Enter the following menus: Powertrain / Engine and ECT / Data List / Primary / 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. READ VALUE USING GTS (ENGINE SPEED)


    1. Connect the GTS to the DLC3.

    2. Turn the power switch on (IG).

    3. Turn the GTS on.

    4. Put the engine in inspection mode (maintenance mode).

      Click here


      Powertrain > Hybrid Control > Utility
      Tester Display
      Inspection Mode

    5. Enter the following menus: Powertrain / Engine and ECT / Data List / Primary / Engine Speed.


      Powertrain > Engine and ECT > Data List
      Tester Display
      Engine Speed

    6. Start the engine.

    7. Read the values displayed on the GTS while the engine is running.

      Standard
      Correct values are displayed.

      Tech Tips


      • To check the engine speed change, display the graph on the GTS.

      • If the engine does not start, check the engine speed while cranking.

      • If the engine speed indicated on the GTS remains zero (0), there may be an open or short in the crankshaft position sensor circuit.

      Result
      Proceed to
      OK
      NG

    OK

    CHECK FOR INTERMITTENT PROBLEMS Click here

    NG

  2. INSPECT CRANKSHAFT POSITION SENSOR


    1. Inspect the crankshaft position sensor.

      Click here

      Result
      Proceed to
      OK
      NG

    NG

    REPLACE CRANKSHAFT POSITION SENSOR Click here

    OK

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


    1. Disconnect the crankshaft position sensor 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
      C38-1 - C48-76 (NE+) Always Below 1 Ω
      C38-2 - C48-109 (NE-) Always Below 1 Ω
      C38-1 or C48-76 (NE+) - Body ground Always 10 kΩ or higher
      C38-2 or C48-109 (NE-) - Body ground Always 10 kΩ or higher
      Result
      Proceed to
      OK
      NG

    NG

    REPAIR OR REPLACE HARNESS OR CONNECTOR

    OK

  4. CHECK SENSOR INSTALLATION (CRANKSHAFT POSITION SENSOR)

    A0001BLC02
    *a Clearance

    1. Check the crankshaft position sensor installation condition.

      OK
      Crankshaft position sensor is installed correctly.
      Result
      Proceed to
      OK
      NG

    NG

    SECURELY REINSTALL CRANKSHAFT POSITION SENSOR Click here

    OK

  5. INSPECT CRANKSHAFT (TEETH OF CRANK ANGLE SENSOR PLATE)


    1. Inspect the teeth of the crank angle sensor plate.

      OK
      Crank angle sensor plate does not have any cracks or deformation.
      Result
      Proceed to
      OK
      NG

    OK

    REPLACE ECM Click here

    NG

    REPLACE CRANKSHAFT Click here