ECD SYSTEM, 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 system consists of a crankshaft position sensor plate and a pickup coil.

The sensor plate has 34 teeth and is installed on the crankshaft. The pickup coil is made of an iron core and magnet. The crankshaft position sensor plate No. 1 rotates, and a pulse signal is created as each tooth passes by the pickup coil. The pickup coil generates 34 signals for each engine revolution. Based on these signals, the ECM calculates the crankshaft position and engine RPM. Using these calculations, the common rail injection system is controlled.

DTC No. DTC Detection Condition Trouble Area
P0335

When either condition below is met:


  • No crankshaft position sensor signal to ECM while cranking

    (1 trip detection logic)

  • No crankshaft position sensor signal to ECM with engine speed 600 rpm or more

    (1 trip detection logic)

  • Open or short in crankshaft position sensor circuit

  • Crankshaft position sensor

  • Crankshaft position sensor plate No. 1

  • ECM
P0339

  • No crankshaft position sensor signal to ECM is input for 0.05 seconds or more, and conditions (a), (b) and (c) are met

    (1 trip detection logic):


    1. Engine is at 1,000 rpm or more

    2. STA signal is OFF

    3. 3 seconds or more have elapsed after STA signal is switched from ON to OFF

  • Open or short in crankshaft position sensor circuit

  • Crankshaft position sensor

  • Crankshaft position sensor plate No. 1

  • ECM

WIRING DIAGRAM

A01KI85E01

INSPECTION PROCEDURE

Note

If the ECM is replaced, the new ECM needs initialization Click here.

Tech Tips


  • If no trouble is found in the diagnostic troubleshooting procedure of DTC P0335, troubleshoot the engine mechanical system.

  • Read freeze frame data using the intelligent tester. Freeze frame data records the engine conditions when a malfunction is detected. When troubleshooting, freeze frame data can help determine if the vehicle was running or stopped, if the engine was warmed up or not, and other data from the time the malfunction occurred.

PROCEDURE


  1. INSPECT CRANKSHAFT POSITION SENSOR (RESISTANCE)


    1. A01KIFWE30

      Disconnect the C3 crankshaft position sensor connector.

    2. Measure the resistance of the sensor.

      Standard resistance
      Tester Connection Condition Specified Condition
      1 - 2 Cold 1,630 to 2,740 Ω
      1 - 2 Hot 2,065 to 3,225 Ω
      Text in Illustration
      *1 Crankshaft Position Sensor
      *a Component Side

      Tech Tips


      • In the chart above, the terms "cold" and "hot" refer to the temperature of the sensor. "Cold" means approximately -10 to 50°C (14 to 122°F). "Hot" means approximately 50 to 100°C (122 to 212°F).

      • While cranking or idling the engine, check the waveform of the ECM connectors using an oscilloscope.

      A01KEIDE10
      Reference
      Tester Connection Specified Condition

      E5-23 (G+) - E5-31 (G-)

      E6-27 (NE+) - E6-34 (NE-)

      		 Correct waveform is as shown
      Tool Setting Condition
      5 V/DIV., 20 msec./DIV. Idling with warm engine
      Text in Illustration
      *1 ECM Connector

      Tech Tips

      The waveform varies depending on the engine speed.

    3. Reconnect the crankshaft position sensor connector.


    NG

    REPLACE CRANKSHAFT POSITION SENSOR

    OK

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


    1. A01KGEIE20
      Text in Illustration
      *1 Crankshaft Position Sensor
      *2 ECM
      *a Wire Harness Side
      *b Front View

      Disconnect the C3 crankshaft position sensor connector.

    2. Disconnect the E6 ECM connector.

    3. Check the resistance.

      Standard resistance (Check for open)
      Tester Connections Specified Conditions
      C3-1 - E6-27 (NE+) Below 1 Ω
      C3-2 - E6-34 (NE-) Below 1 Ω
      Standard resistance (Check for open)
      Tester Connections Specified Conditions
      C3-1 or E6-27 (NE+) - Body ground 10 kΩ or higher
      C3-2 or E6-34 (NE-) - Body ground 10 kΩ or higher

    4. Reconnect the ECM connector.

    5. Reconnect the crankshaft position sensor connector.


    NG

    REPAIR OR REPLACE HARNESS OR CONNECTOR

    OK

  3. CHECK SENSOR INSTALLATION (CRANKSHAFT POSITION SENSOR)


    1. A01KHKUE93
      Text in Illustration
      *a Clearance

      Check the crankshaft position sensor installation.

      OK
      Sensor is installed correctly.

    NG

    SECURELY REINSTALL CRANKSHAFT POSITION SENSOR

    OK

  4. CHECK CRANKSHAFT POSITION SENSOR PLATE NO.1


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

      OK
      Crankshaft position sensor plate No. 1 does not have any cracks or deformation.

    NG

    REPLACE CRANKSHAFT POSITION SENSOR PLATE NO.1

    OK

    REPLACE ECM