DTC    P0335    Crankshaft Position Sensor "A" Circuit

DTC    P0339    Crankshaft Position Sensor "A" Circuit Intermittent

for Preparation Click here


DESCRIPTION

The crankshaft position sensor system consists of a crankshaft position sensor plate and a pickup coil.
The sensor plate has 58 teeth and is installed on the crankshaft. The pickup coil is made of an iron core and a magnet. The sensor plate rotates and as each tooth passes through the pickup coil, a pulse signal is created.
The pickup coil generates 58 signals per engine revolution. Based on these signals, the ECM calculates the crankshaft position and engine speed. Using these calculations, the common rail system is controlled.

P0335 
DTC Detection Drive Pattern
DTC Detection Condition
Trouble Area
The engine cranks 10 revolutions or more
No crankshaft position sensor signal to ECM while cranking
(1 trip detection logic)
  1. Open or short in crankshaft position sensor circuit
  2. Crankshaft position sensor
  3. Crankshaft position sensor plate No. 1
  4. ECM

P0339 
DTC Detection Drive Pattern
DTC Detection Condition
Trouble Area
The engine cranks 4 revolutions or more
Wrong pattern of signal from sensor is detected
(1 trip detection logic)
  1. Open or short in crankshaft position sensor circuit
  2. Crankshaft position sensor
  3. Crankshaft position sensor plate No. 1
  4. ECM

Related Data List 
DTC No.
Data List
P0335
  1. Engine Speed
P0339

HINT:
  1. If DTC P0335 and/or P0339 is stored, the following symptoms may appear:
    1. Difficult to start
    2. Engine stalls due to fail-safe operation (fuel cut)


WIRING DIAGRAM


A199001E01


INSPECTION PROCEDURE

NOTICE:
When replacing the ECM and/or engine assembly, the ECM needs Registration and Initialization (Click here).

HINT:
  1. When the ECM must be replaced, before replacing the ECM, perform the "Learning Values Save" function using the intelligent tester. Then after installing the new ECM, perform all of the initializations/registrations for the "Learning Values Write" function by following the instructions shown on the tester display.
  2. Check the value on the intelligent tester.
    1. Connect the intelligent tester to the DLC3.
    2. Start the engine and turn the tester on.
    3. Enter the following menus: Powertrain / Engine and ECT / Data List / Engine Speed.
  3. The engine speed can be confirmed in the Data List using the intelligent tester. If there are no NE signals from the crankshaft position sensor despite the engine revolving, the engine speed will be indicated as zero. If the voltage output of the crankshaft position sensor is insufficient, the engine speed will be indicated as lower than the actual engine rpm.
  4. Read freeze frame data using the intelligent tester. Freeze frame data records the engine condition when malfunctions are detected. When troubleshooting, freeze frame data can help determine if the vehicle was moving or stationary, if the engine was warmed up or not, and other data from the time the malfunction occurred.

1.INSPECT CRANKSHAFT POSITION SENSOR


    A199029E01

  1. Disconnect the crankshaft position sensor connector.

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

    Standard Resistance:
    Tester Connection
    		Condition
    		Specified Condition
    1 - 2
    		20°C (68°F)
    		1850 to 2450 Ω

    Text in Illustration 
    *1
    		Component without harness connected
    (Crankshaft Position Sensor)

  1. Reconnect the crankshaft position sensor connector.



NG
Go to step 6
OK


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

  1. Disconnect the crankshaft position sensor connector.



    A199030E01

  1. Disconnect the ECM connector.

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

    Standard Resistance (Check for Open):
    Tester Connection
    		Condition
    		Specified Condition
    B28-1 - B9-19 (NE+)
    		Always
    		Below 1 Ω
    B28-2 - B9-18 (NE-)
    		Always
    		Below 1 Ω

    Standard Resistance (Check for Short):
    Tester Connection
    		Condition
    		Specified Condition
    B28-1 or B9-19 (NE+) - Body ground
    		Always
    		10 kΩ or higher
    B28-2 or B9-18 (NE-) - Body ground
    		Always
    		10 kΩ or higher

    HINT:
    A DTC may also be stored when the ground of a shielded wire is faulty.

    Text in Illustration 
    *1
    		Front view of wire harness connector
    (to Crankshaft Position Sensor)
    *2
    		Front view of wire harness connector
    (to ECM)

  1. Reconnect the crankshaft position sensor.

  1. Reconnect the ECM connector.



NG
Go to step 7
OK


3.CHECK SENSOR INSTALLATION (CRANKSHAFT POSITION SENSOR)


    BR03795E25

  1. Check the crankshaft position sensor installation.

    OK:
    Sensor is installed correctly.



NG
Go to step 8
OK


4.CHECK CRANKSHAFT POSITION SENSOR PLATE NO. 1 (TEETH OF SENSOR PLATE)

  1. Check the teeth of the sensor plate.

    OK:
    Sensor plate does not have any cracks or deformation.



NG
Go to step 9
OK


5.REPLACE ECM

  1. Replace the ECM (Click here).



NEXT
Go to step 10

6.REPLACE CRANKSHAFT POSITION SENSOR

  1. Replace crankshaft position sensor (Click here).



NEXT
Go to step 10

7.REPAIR OR REPLACE HARNESS OR CONNECTOR


NEXT
Go to step 10

8.SECURELY REINSTALL SENSOR

  1. Securely reinstall sensor (Click here).



NEXT
Go to step 10

9.REPLACE CRANKSHAFT POSITION SENSOR PLATE NO. 1

  1. Replace the crankshaft position sensor plate No. 1 (Click here).


NEXT


10.CONFIRM WHETHER MALFUNCTION HAS BEEN SUCCESSFULLY REPAIRED

  1. Connect the intelligent tester to the DLC3.

  1. Clear DTCs (Click here).

  1. Start the engine.

  1. Confirm that the DTC is not output again.


NEXT

END