SFI SYSTEM, Diagnostic DTC:P0335

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

DESCRIPTION

The crank position sensor system consists of a No. 1 crankshaft position sensor plate and a pickup coil.

The No. 1 crankshaft position sensor plate has 34 teeth and is installed on the crankshaft. The pickup coil is made of wound copper wire, an iron core and magnet. The No. 1 crankshaft position sensor plate rotates and, as each tooth passes by the pickup coil, a pulse signal is created. The pickup coil 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 of the following conditions is met (1 trip detection logic):


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

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

  • Open or short in crank position sensor circuit

  • Crank position sensor

  • No. 1 crankshaft position sensor plate

  • ECM

 Comes on DTC stored

MONITOR DESCRIPTION

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

MONITOR STRATEGY

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

COMPONENT OPERATING RANGE

Crank position sensor

  • Crank position sensor output voltage fluctuates while crankshaft revolving

  • 34 crank position sensor signals per crankshaft revolution

CONFIRMATION DRIVING PATTERN


  1. Connect the GTS to the DLC3.

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

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

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

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

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

    Click here

  7. Start the engine.

  8. Idle the engine for 20 seconds or more.

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

  10. 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.

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

  12. Input the DTC: P0335.

  13. 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 the Confirmation Driving Pattern and check the DTC judgment result again.

WIRING DIAGRAM

A01KRG7E01
*a Shielded
*b Crank Position Sensor

CAUTION / NOTICE / HINT

Tech Tips


  • After performing the inspection procedure for the crank 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 by this diagnostic troubleshooting procedure, check for problems by referring to the engine mechanical section.

  • 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 / 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 crank position sensor. Alternatively, the engine speed may be indicated as lower than the actual engine speed if the crank 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. Enter the following menus: Powertrain / Engine and ECT / Data List / All Data / Engine Speed.


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

    5. Start the engine.

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

      OK
      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 crank position sensor circuit.

      Result
      Proceed to
      OK
      NG

    OK

    CHECK FOR INTERMITTENT PROBLEMS Click here

    NG

  2. INSPECT CRANK POSITION SENSOR (RESISTANCE)


    1. Inspect the crank position sensor.

      Click here

      Result
      Proceed to
      OK
      NG

    NG

    REPLACE CRANK POSITION SENSOR Click here

    OK

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


    1. Disconnect the crank 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
      B44-1 - B178-78 (NE+) Always Below 1 Ω
      B44-2 - B178-110 (NE-) Always Below 1 Ω
      B44-1 or B178-78 (NE+) - Body ground Always 10 kΩ or higher
      B44-2 or B178-110 (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 (CRANK POSITION SENSOR)


    1. A01KSK7E01
      *1 Clearance

      Check the crank position sensor installation condition.

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

    NG

    SECURELY REINSTALL CRANK POSITION SENSOR Click here

    OK

  5. INSPECT NO. 1 CRANKSHAFT POSITION SENSOR PLATE (TEETH OF SENSOR PLATE)


    1. Inspect the teeth of the No. 1 crankshaft position sensor plate.

      OK
      No. 1 crankshaft position sensor plate does not have any cracks or deformation.
      Result
      Proceed to
      OK
      NG

    NG

    REPLACE NO. 1 CRANKSHAFT POSITION SENSOR PLATE Click here

    OK

  6. REPLACE CRANK POSITION SENSOR


    1. Replace the crank position sensor.

      Click here

      Result
      Proceed to
      NEXT

    NEXT

  7. CHECK WHETHER DTC OUTPUT RECURS


    1. Connect the GTS to the DLC3.

    2. Turn the power switch on (IG).

    3. Turn the GTS on.

    4. Clear the DTCs.

      Click here


      Powertrain > Engine and ECT > Clear DTCs

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

    6. Turn the power switch on (IG).

    7. Turn the GTS on.

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

      Click here

    9. Start the engine.

    10. Drive the vehicle in accordance with the driving pattern described in Confirmation Driving Pattern.

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

    12. Read the DTCs.

      Click here


      Powertrain > Engine and ECT > Trouble Codes
      Result
      Result Proceed to
      DTC is not output A
      DTC P0335 is output B

      Tech Tips

      If the engine does not start, replace the ECM.


    A

    END

    B

    REPLACE ECM Click here