Dtc P0335 Crankshaft Position Sensor A Circuit

Engine. Camry. Acv40 Gsv40
2Gr-Fe Engine Control System. Camry. Acv40 Gsv40

DESCRIPTION

WIRING DIAGRAM

INSPECTION PROCEDURE

INSPECT CRANKSHAFT POSITION SENSOR

CHECK HARNESS AND CONNECTOR (CRANKSHAFT POSITION SENSOR - ECM)

CHECK CRANK POSITION SENSOR (SENSOR INSTALLATION)

CHECK CRANKSHAFT POSITION SENSOR PLATE (TEETH OF SENSOR PLATE)

DTC P0335 Crankshaft Position Sensor "A" Circuit

DTC P0339 Crankshaft Position Sensor "A" Circuit Intermittent


DESCRIPTION

The crankshaft position (CKP) sensor system consists of a crankshaft position sensor plate and a magnetic coil.
The sensor plate has 34 teeth and is installed on the crankshaft. The pickup coil is made of windings, an iron core and magnet. The sensor plate rotates and as each tooth passes through the pickup coil, a pulse signal is created. 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 fuel injection time and ignition time are controlled.

DTC No.
DTC Detection Condition
Trouble Area
P0335
  1. No CKP sensor signal to ECM while cranking (1 trip detection logic)
  1. No CKP sensor signal to ECM at engine speed of 600 rpm or more (1 trip detection logic)
  1. Open or short in CKP sensor circuit
  2. CKP sensor
  3. CKP sensor plate
  4. ECM
P0339
Under conditions (a), (b) and (c), no CKP sensor signal to ECM for 0.05 seconds or more
(1 trip detection logic):
(a) Engine speed 1,000 rpm or more
(b) Starter signal OFF
(c) 3 seconds or more have elapsed since starter signal switched from ON to OFF
  1. Open or short in CKP sensor circuit
  2. CKP sensor
  3. CKP sensor plate
  4. ECM

  1. Camry. Acv40 Gsv40.2Gr-Fe Engine Control System.Sfi System. Dtc P0335 Crankshaft Position Sensor A Circuit
    Reference: Inspection using an oscilloscope.
    HINT:
    1. The correct waveform is as shown.
    1. VV1+ and VV2+ stand for the VVT sensor signal, and NE+ stands for the CKP sensor signal.
    Item
    		Content
    Terminals
    		VV1+ - VV1-
    VV2+ - VV2-
    NE+ - NE-
    Equipment Settings
    		5 V/DIV,
    20 ms./DIV.
    Conditions
    		Cranking or idling

WIRING DIAGRAM


Camry. Acv40 Gsv40.2Gr-Fe Engine Control System.Sfi System. Dtc P0335 Crankshaft Position Sensor A Circuit


INSPECTION PROCEDURE

HINT:
  1. If no problem is found by this diagnostic troubleshooting procedure, troubleshoot the engine mechanical system.
  2. Check the engine speed. The engine speed can be checked by using the intelligent tester. To check, follow the procedure below:
    1. Connect the intelligent tester to the DLC3.
    2. Start the engine.
    3. Turn the tester on.
    4. Enter the following menus: Powertrain / Engine / Data List / Engine Speed.
    1. The engine speed may be indicated as zero despite the engine revolving normally. This is caused by a lack of NE signals from the crankshaft position (CKP) sensor. Alternatively, the engine speed may be indicated as lower than the actual engine speed, if the CKP sensor output voltage is insufficient.
  3. Read freeze frame data using the intelligent tester. The ECM records vehicle and driving condition information as freeze frame data the moment a DTC is stored. When troubleshooting, freeze frame data can be helpful in determining whether the vehicle was running or stopped, whether the engine was warmed up or not, whether the air-fuel ratio was lean or rich, as well as other data recorded at the time of a malfunction (CAMRY_ACV40 RM000000PDS01FX.html).
1.INSPECT CRANKSHAFT POSITION SENSOR


    Camry. Acv40 Gsv40.2Gr-Fe Engine Control System.Sfi System. Dtc P0335 Crankshaft Position Sensor A Circuit

  1. Disconnect the C50 crankshaft position (CKP) sensor connector.

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

    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
    HINT:
    Terms "cold" and "hot" refer to the temperature of the coils. "Cold" means approximately -10 to 50°C (14 to 122°F). "Hot" means approximately 50 to 100°C (122 to 212°F).

  1. Reconnect the CKP sensor connector.



NG
REPLACE CRANKSHAFT POSITION SENSOR (CAMRY_ACV40 RM0000022NG00YX.html)
OK


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


    Camry. Acv40 Gsv40.2Gr-Fe Engine Control System.Sfi System. Dtc P0335 Crankshaft Position Sensor A Circuit

  1. Disconnect the C50 CKP sensor connector.

  1. Disconnect the C58 (RHD) or C55 (LHD) ECM connector.

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

    Standard resistance (Check for open):
    RHD:
    Tester Connection
    		Specified Condition
    C50-1 - NE+ (C58-110)
    		Below 1 Ω
    C50-2 - NE- (C58-111)
    		Below 1 Ω
    LHD:
    Tester Connection
    		Specified Condition
    C50-1 - NE+ (C55-110)
    		Below 1 Ω
    C50-2 - NE- (C55-111)
    		Below 1 Ω

    Standard resistance (Check for short):
    RHD:
    Tester Connection
    		Specified Condition
    C50-1 or NE+ (C58-110) - Body ground
    		10 kΩ or higher
    C50-2 or NE- (C58-111) - Body ground
    		10 kΩ or higher
    LHD:
    Tester Connection
    		Specified Condition
    C50-1 or NE+ (C55-110) - Body ground
    		10 kΩ or higher
    C50-2 or NE- (C55-111) - Body ground
    		10 kΩ or higher

  1. Reconnect the ECM connector.

  1. Reconnect the CKP sensor connector.



NG
REPAIR OR REPLACE HARNESS OR CONNECTOR
OK


3.CHECK CRANK POSITION SENSOR (SENSOR INSTALLATION)


    Camry. Acv40 Gsv40.2Gr-Fe Engine Control System.Sfi System. Dtc P0335 Crankshaft Position Sensor A Circuit

  1. Check the CKP sensor installation condition.

    OK:
    Sensor is installed correctly.


NG
REPAIR OR REPLACE CRANK POSITION SENSOR
OK


4.CHECK CRANKSHAFT POSITION SENSOR PLATE (TEETH OF SENSOR PLATE)

  1. Check the teeth of the sensor plate.

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


NG
REPLACE CRANKSHAFT POSITION SENSOR PLATE
OK

REPLACE ECM (CAMRY_ACV40 RM0000022NT01EX.html)