Dtc P0335 Crankshaft Position Sensor A Circuit

Engine Hybrid System. Hilux. Tgn26, 36 Kun25, 26, 35, 36 Ggn25
1Gr-Fe Engine Control. Hilux. Tgn26, 36 Kun25, 26, 35, 36 Ggn25

DESCRIPTION

MONITOR DESCRIPTION

CONFIRMATION DRIVING PATTERN

WIRING DIAGRAM

INSPECTION PROCEDURE

READ VALUE USING INTELLIGENT TESTER (ENGINE SPEED)

INSPECT CRANKSHAFT POSITION SENSOR (RESISTANCE)

CHECK HARNESS AND CONNECTOR (CRANKSHAFT POSITION SENSOR - ECM)

CHECK SENSOR INSTALLATION (CRANKSHAFT POSITION SENSOR)

CHECK CRANK ANGLE SENSOR PLATE (TEETH OF SENSOR PLATE)

REPLACE CRANKSHAFT POSITION SENSOR

CHECK WHETHER DTC OUTPUT RECURS

DTC P0335 Crankshaft Position Sensor "A" Circuit

DTC 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 wound copper wire, an iron core and magnet. The sensor plate rotates and, as each tooth passes by the pickup coil, a pulse signal is created. The pickup coil generates 34 signals per revolution. Based on these signals, the ECM calculates the crankshaft position and engine speed. Using these calculations, the fuel injection time and ignition timing are controlled.

DTC Code
DTC Detection Condition
Trouble Area
P0335
One of the following conditions is met (1 trip detection logic):
  1. No crankshaft position sensor signal is sent to the ECM while cranking.
  2. No crankshaft position sensor signal is sent to the ECM while the engine is running.
  3. No crankshaft position sensor signal despite the VVT sensor signal input being normal after the engine is cranked.
  1. Open or short in crankshaft position sensor circuit
  2. Crankshaft position sensor
  3. Crankshaft (crank angle sensor plate)
  4. ECM
P0339
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) The engine speed is 1000 rpm or more.
(b) The starter signal is off.
(c) 3 seconds or more have elapsed since the starter signal switched from on to off.
  1. Open or short in crankshaft position sensor circuit
  2. Crankshaft position sensor
  3. Crankshaft (crank angle sensor plate)
  4. ECM

  1. Hilux. Tgn26, 36 Kun25, 26, 35, 36 Ggn25.1Gr-Fe Engine Control.Sfi System. Dtc P0335 Crankshaft Position Sensor A Circuit
    Reference: Inspection using an oscilloscope.
    HINT:
    1. The correct waveform is as shown.
    2. VV1+ and VV2+ stand for the VVT sensor signal, and NE+ stands for the crankshaft position sensor signal.
    3. Grounding failure of the shielded wire may cause noise in the waveforms.
    Item
    		Content
    Terminal
    		VV1+ - VV1-
    VV2+ - VV2-
    NE+ - NE-
    Equipment Setting
    		5 V/DIV.,
    20 msec./DIV.
    Condition
    		Cranking or idling

MONITOR DESCRIPTION

If there is no signal from the crankshaft position sensor despite the engine running, the ECM interprets this as a malfunction of the sensor.
If the malfunction is not repaired successfully, a DTC is stored 10 seconds after the engine is next started.

CONFIRMATION DRIVING PATTERN

  1. Connect the intelligent tester to the DLC3.
  2. Turn the ignition switch to ON and turn the tester on.
  3. Clear the DTCs (even if no DTCs are stored, perform the clear DTC procedure).
  4. Turn the ignition switch off and wait for at least 30 seconds.
  5. Turn the ignition switch to ON and turn the tester on.
  6. Start the engine.
  7. Idle the engine for 20 seconds or more.
  8. Enter the following menus: Powertrain / Engine and ECT / DTC.
  9. Read the pending DTCs.
    HINT:
    1. If a pending DTC is output, the system is malfunctioning.
    2. If a pending DTC is not output, perform the following procedure.
  10. Enter the following menus: Powertrain / Engine and ECT / Utility / All Readiness.
  11. Input the DTC: P0335 or P0339.
  12. Check the DTC judgment result.

    Tester Display
    		Description
    NORMAL
    1. DTC judgment completed
    2. System normal
    ABNORMAL
    1. DTC judgment completed
    2. System abnormal
    INCOMPLETE
    1. DTC judgment not completed
    2. Perform driving pattern after confirming DTC enabling conditions
    N/A
    1. Unable to perform DTC judgment
    2. Number of DTCs which do not fulfill DTC preconditions has reached ECU memory limit
    HINT:
    1. If the judgment result shows NORMAL, the system is normal.
    2. If the judgment result shows ABNORMAL, the system has a malfunction.
    3. If the judgment result shows INCOMPLETE or N/A, perform the Confirmation Driving Pattern and the DTC judgment result again.

WIRING DIAGRAM


Hilux. Tgn26, 36 Kun25, 26, 35, 36 Ggn25.1Gr-Fe Engine Control.Sfi System. Dtc P0335 Crankshaft Position Sensor A Circuit


INSPECTION PROCEDURE

HINT:
  1. After performing the inspection procedure for the crankshaft position sensor, if DTC P0335 and/or P0339 are output again, check the following items related to the VVT sensor.
    1. Installation condition of the VVT sensor
    2. Installation condition of the camshaft
    3. Connection of the VVT sensor connector
  2. If no problem is found through this diagnostic troubleshooting procedure, troubleshoot the engine mechanical system.
  3. Check the engine speed. The engine speed can be checked by using the intelligent tester. To check, follow the operation 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 and ECT / Data List / All Data / Engine Speed.
    1. 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 less than the actual engine speed if the crankshaft position sensor output voltage is insufficient.
  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, if the air fuel ratio was lean or rich, and other data from the time the malfunction occurred.
1.READ VALUE USING INTELLIGENT TESTER (ENGINE SPEED)

  1. Connect the intelligent tester to the DLC3.

  1. Turn the ignition switch to ON.

  1. Turn the tester on.

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

  1. Start the engine.

  1. Read the values displayed on the tester while the engine is running.

    OK:
    Correct values are displayed.
    HINT:
    1. To check the engine speed change, display the graph on the tester.
    2. If the engine does not start, check the engine speed while cranking.
    3. If the engine speed indicated on the tester remains at zero (0), there may be an open or short in the crankshaft position sensor circuit.


NG
Go to step 2
OK

CHECK FOR INTERMITTENT PROBLEMS (HILUX_TGN26 RM000000PDQ0TSX.html)

2.INSPECT CRANKSHAFT POSITION SENSOR (RESISTANCE)

  1. Inspect the crankshaft position sensor (HILUX_TGN26 RM0000028AP00WX.html).



NG
REPLACE CRANKSHAFT POSITION SENSOR (HILUX_TGN26 RM000000VX301WX.html)
OK


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

  1. Disconnect the crankshaft position sensor connector.

  1. Disconnect the ECM connector.

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

    Standard Resistance:
    Tester Connection
    		Condition
    		Specified Condition
    C147-1 - C129-21 (NE+)
    		Always
    		Below 1 Ω
    C147-2 - C129-20 (NE-)
    		Always
    		Below 1 Ω
    C147-1 or C129-21 (NE+) - Body ground
    		Always
    		10 kΩ or higher
    C147-2 or C129-20 (NE-) - Body ground
    		Always
    		10 kΩ or higher


NG
REPAIR OR REPLACE HARNESS OR CONNECTOR
OK


4.CHECK SENSOR INSTALLATION (CRANKSHAFT POSITION SENSOR)
Hilux. Tgn26, 36 Kun25, 26, 35, 36 Ggn25.1Gr-Fe Engine Control.Sfi System. Dtc P0335 Crankshaft Position Sensor A Circuit

  1. Check the crankshaft position sensor installation.

    OK:
    Sensor is installed correctly.


NG
SECURELY REINSTALL SENSOR (HILUX_TGN26 RM000000VX0025X.html)
OK


5.CHECK CRANK ANGLE 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 (HILUX_TGN26 RM000002BK503CX.html)
OK


6.REPLACE CRANKSHAFT POSITION SENSOR

  1. Replace the crankshaft position sensor (HILUX_TGN26 RM000000VX301WX.html).


NEXT


7.CHECK WHETHER DTC OUTPUT RECURS

  1. Connect the intelligent tester to the DLC3.

  1. Turn the ignition switch to ON and turn the tester on.

  1. Clear the DTCs (HILUX_TGN26 RM000000PDK0X5X.html).

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

  1. Start the engine.

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

  1. Enter the following menus: Powertrain / Engine and ECT / DTC.

  1. Read the DTCs.

    Result
    Result
    		Proceed to
    DTC is not output
    		A
    P0335 or P0339 is output
    		B
HINT:
If the engine does not start, replace the ECM.


B
REPLACE ECM (HILUX_TGN26 RM000000VW202KX.html)
A

END