SFI SYSTEM, Diagnostic DTC:P0335, P0337, P0338, P0339

DTC Code DTC Name
P0335 Crankshaft Position Sensor "A" Circuit
P0337 Crankshaft Position Sensor "A" Circuit Low Input
P0338 Crankshaft Position Sensor "A" Circuit High Input
P0339 Crankshaft Position Sensor "A" Circuit Intermittent

DESCRIPTION

The crankshaft position sensor system consists of a crankshaft angle sensor plate and Magneto Resistance Element (MRE) type sensor. The crankshaft 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. The ECM uses the VV1 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 the ECM while cranking.

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

*

  • Open or short in crankshaft position sensor circuit

  • Wire harness or connector

  • Crankshaft position sensor

  • Crankshaft (crank angle sensor plate)

  • ECM

 Comes on DTC stored
P0337 Crankshaft Position Sensor "A" Circuit Low Input Output voltage of crankshaft position sensor is less than 0.3 V for 0.43 seconds or more (2 trip detection logic).

  • Open or short in crankshaft position sensor circuit

  • Wire harness or connector

  • Crankshaft position sensor

  • ECM

 Comes on DTC stored
P0338 Crankshaft Position Sensor "A" Circuit High Input Output voltage of crankshaft position sensor is higher than 4.7 V for 0.43 seconds or more (2 trip detection logic).

  • Open or short in crankshaft position sensor circuit

  • Wire harness or connector

  • Crankshaft position sensor

  • ECM

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

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

(a) Engine speed is 1000 rpm or more.

(b) Starter signal is off.

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

*

  • Open or short in crankshaft position sensor circuit

  • Wire harness or connector

  • Crankshaft position sensor

  • Crankshaft (crank angle sensor plate)

  • ECM

 Does not come on DTC stored

*: When the engine is being stopped and started automatically by stop and start system control, the ECM does not monitor the crankshaft position sensor signal. (w/ Stop and Start System)


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 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 20 seconds or more.

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

  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: P0335, P0337, P0338 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 the Confirmation Driving Pattern and check the DTC judgment result again.

WIRING DIAGRAM

A0047XKE01

CAUTION / NOTICE / HINT

Tech Tips


  • 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. Start the engine.

    3. Turn the GTS on.

    4. 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 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 ignition switch to ON.

    3. Turn the GTS on.

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

    5. Start the engine.

    6. 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 at 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. CHECK TERMINAL VOLTAGE (POWER SOURCE OF CRANKSHAFT POSITION SENSOR)

    A00472DC02
    *a

    Front view of wire harness connector

    (to Crankshaft Position Sensor)

    1. Disconnect the crankshaft position sensor 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
      B24-3 (VC) - Body ground Ignition switch ON 4.5 to 5.5 V
      Result
      Proceed to
      OK
      NG

    NG

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

    OK

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


    1. Disconnect the B112 ECM connector.*1

    2. Disconnect the B118 ECM connector.*2

    3. Disconnect the B24 crankshaft position sensor connector.

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

      *1: for LHD

      *2: for RHD

      Standard Resistance
      for LHD
      Tester Connection Condition Specified Condition
      B112-114 (NE+) - B24-1 (NE+) Always Below 1 Ω
      B112-113 (NE-) - B24-2 (NE-) Always Below 1 Ω
      B112-114 (NE+) or B24-1 (NE+) - Body ground and other terminals Always 10 kΩ or higher
      B112-113 (NE-) or B24-2 (NE-) - Body ground and other terminals Always 10 kΩ or higher
      for RHD
      Tester Connection Condition Specified Condition
      B118-114 (NE+) - B24-1 (NE+) Always Below 1 Ω
      B118-113 (NE-) - B24-2 (NE-) Always Below 1 Ω
      B118-114 (NE+) or B24-1 (NE+) - Body ground and other terminals Always 10 kΩ or higher
      B118-113 (NE-) or B24-2 (NE-) - Body ground and other terminals 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)

    A00480UC32
    *a OK
    *b NG
    *c Clearance

    1. Check the crankshaft position sensor installation.

      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 SENSOR PLATE)


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

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

    NG

    REPLACE CRANKSHAFT Click here

    OK

  6. REPLACE CRANKSHAFT POSITION SENSOR


    1. Replace the crankshaft position sensor.

      Click here

      Result
      Proceed to
      NEXT

    NEXT

  7. CHECK WHETHER DTC OUTPUT RECURS (DTC P0335, P0337, P0338 AND/OR P0339)


    1. Connect the GTS to the DLC3.

    2. Turn the ignition switch to ON.

    3. Turn the GTS on.

    4. Clear the DTCs.

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

    6. Start the engine.

    7. Turn the GTS on.

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

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

    10. Read the DTCs.

      Result
      Result Proceed to
      DTCs are not output A
      DTC P0335, P0337, P0338 and/or P0339 is output B

    A

    END

    B

    REPLACE ECM Click here

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


    1. Disconnect the B112 ECM connector.*1

    2. Disconnect the B118 ECM connector.*2

    3. Disconnect the B24 crankshaft position sensor connector.

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

      *1: for LHD

      *2: for RHD

      Standard Resistance
      for LHD
      Tester Connection Condition Specified Condition
      B112-81 (VCNE) - B24-3 (VC) Always Below 1 Ω
      B112-81 (VCNE) or B24-3 (VC) - Body ground and other terminals Always 10 kΩ or higher
      for RHD
      Tester Connection Condition Specified Condition
      B118-81 (VCNE) - B24-3 (VC) Always Below 1 Ω
      B118-81 (VCNE) or B24-3 (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