Nissan GT-R (R35) · Service Manual ENGINE

P0335 CKP SENSOR (POS)

VR38

P0335

Description


The crankshaft position sensor (POS) is located on the cylinder block facing the gear teeth (cogs) of the signal plate. It detects the fluctuation of the engine revolution.

JMBIA0062ZZ.JPG
The sensor consists of a permanent magnet and Hall IC.
When the engine is running, the high and low parts of the teeth cause the gap with the sensor to change.
The changing gap causes the magnetic field near the sensor to change.
Due to the changing magnetic field, the voltage from the sensor changes.
The ECM receives the voltage signal and detects the fluctuation of the engine revolution.
ECM receives the signals as shown in the figure.

JMBIA0001GB.JPG

DTC Logic

 
 DTC DETECTION LOGIC

DTC No.
 		Trouble diagnosis name
 		DTC detecting condition
 		Possible cause
P0335
 		Crankshaft position sensor (POS) circuit
  • The crankshaft position sensor (POS) signal is not detected by the ECM during the first few seconds of engine cranking.
  • The proper pulse signal from the crankshaft position sensor (POS) is not sent to ECM while the engine is running.
  • The crankshaft position sensor (POS) signal is not in the normal pattern during engine running.
  • Harness or connectors
    [CKP sensor (POS) circuit is open or shorted.]
    [CMP sensor (PHASE) (bank 2) circuit is shorted.]
    [Power steering pressure sensor circuit is shorted.]
    (Manifold absolute pressure sensor circuit is shorted.)
    (APP sensor 2 circuit is shorted.)
    (Refrigerant pressure sensor circuit is shorted.)
  • Crankshaft position sensor (POS)
  • Camshaft position sensor (PHASE) (bank 2)
  • Power steering pressure sensor
  • Manifold absolute pressure sensor
  • Accelerator pedal position sensor
  • Refrigerant pressure sensor
  • Signal plate

 
 DTC CONFIRMATION PROCEDURE

 
 1.PRECONDITIONING
 
 2.PERFORM DTC CONFIRMATION PROCEDURE

Diagnosis Procedure


 
 1.CHECK GROUND CONNECTION
 
 2.CHECK CRANKSHAFT POSITION (CKP) SENSOR (POS) POWER SUPPLY CIRCUIT-I
 
 3.CHECK CRANKSHAFT POSITION (CKP) SENSOR (POS) POWER SUPPLY CIRCUIT-II
 
 4.DETECT MALFUNCTIONING PART
 
 5.CHECK SENSOR POWER SUPPLY CIRCUIT
 
 6.CHECK COMPONENTS
 
 7.CHECK APP SENSOR
 
 8.REPLACE ACCELERATOR PEDAL ASSEMBLY
 
 9.CHECK CKP SENSOR (POS) GROUND CIRCUIT FOR OPEN AND SHORT
 
 10.DETECT MALFUNCTIONING PART
 
 11.CHECK CKP SENSOR (POS) INPUT SIGNAL CIRCUIT FOR OPEN AND SHORT
 
 12.DETECT MALFUNCTIONING PART
 
 13.CHECK CRANKSHAFT POSITION SENSOR (POS)
 
 14.CHECK GEAR TOOTH
 
 15.CHECK INTERMITTENT INCIDENT

Component Inspection


 
 1.CHECK CRANKSHAFT POSITION SENSOR (POS)-I
 
 2.CHECK CRANKSHAFT POSITION SENSOR (POS)-II