Dtc P0335 Crankshaft Position Sensor A Circuit

Engine Hybrid System. Corolla. Zre142 Aze141
2Az-Fe Engine Control. Corolla. Zre142 Aze141

DESCRIPTION

MONITOR DESCRIPTION

MONITOR STRATEGY

TYPICAL ENABLING CONDITIONS

TYPICAL MALFUNCTION THRESHOLDS

CONFIRMATION DRIVING PATTERN

WIRING DIAGRAM

INSPECTION PROCEDURE

READ VALUE USING TECHSTREAM (ENGINE SPEED)

INSPECT CRANKSHAFT POSITION SENSOR (RESISTANCE)

CHECK HARNESS AND CONNECTOR (CRANKSHAFT POSITION SENSOR - ECM)

CHECK SENSOR INSTALLATION (CRANKSHAFT POSITION SENSOR)

INSPECT CRANKSHAFT POSITION 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 engine 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 No.
DTC Detection Condition
Trouble Area
P0335
When one of following conditions is met:
(1 trip detection logic)
  1. Missing crankshaft position sensor signal despite camshaft position sensor signal inputs normal after engine cranked
  1. No crankshaft position sensor signal to ECM at engine speed of 600 rpm or less
  2. No crankshaft position sensor signal to ECM while cranking
  1. Open or short in crankshaft position sensor circuit
  2. Crankshaft position sensor
  3. Crankshaft position sensor plate
  4. ECM
P0339
Following conditions (a), (b) and (c) are met:
(1 trip detection logic)
(a) Engine speed 1500 rpm or more
(b) No crankshaft position sensor signal for 0.05 seconds or more
(c) 3 seconds or more have elapsed since starter signal switched from ON to OFF
  1. Open or short in crankshaft position sensor circuit
  2. Crankshaft position sensor
  3. Crankshaft position sensor plate
  4. ECM

  1. Corolla. Zre142 Aze141.2Az-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. G2 stand for the camshaft position sensor signal, and NE stands for the crankshaft position sensor signal.
    3. A failure of the ground for the shielding of the wiring may result in noisy waveforms.
    ECM Terminal Name
    		CH1: Between G2+ and G2-
    CH2: Between NE+ and NE-
    Tester Range
    		5 V/DIV., 20 msec/DIV.
    Condition
    		Idling

MONITOR DESCRIPTION

If there is no signal from the crankshaft position sensor despite the engine rotating, the ECM interprets this as a malfunction of the sensor.

MONITOR STRATEGY


Related DTCs
P0335: Crankshaft position sensor range check/rationality
P0335: Crankshaft position sensor verify pulse input
Required Sensors/Components (Main)
Crankshaft position sensor
Required Sensors/Components (Related)
Camshaft position sensor
Frequency of Operation
Continuous
Duration
15 seconds: Verify pulse input (case 1)
4.7 seconds: Verify pulse input (case 2)
Within 1 second: Range check/rationality
MIL Operation
Immediate
Sequence of Operation
None

TYPICAL ENABLING CONDITIONS


All
Monitor runs whenever following DTCs are not present
None

P0335: Crankshaft Position Sensor Range Check/Rationality
Time after starter off to on
3 seconds or more
Number of camshaft position sensor signal pulse
6 times
Battery voltage
7 V or higher
Minimum battery voltage while starter on
Bellow 11 V
Camshaft position sensor circuit fail (P0340)
Not detected

P0335: Crankshaft Position Sensor Verify Pulse Input (Case 1)
Starter
Off
Engine speed
600 rpm or less
Time after starter from on to off
3 seconds or more

P0335: Crankshaft Position Sensor Verify Pulse Input (Case 2)
Starter
On
Minimum battery voltage while starter on
Below 11 V

TYPICAL MALFUNCTION THRESHOLDS


Crankshaft Position Sensor Range Check/Rationality
Number of crankshaft position sensor signal pulse
132 times or less, or 174 times or more

Crankshaft Position Sensor Verify Pulse Input
Engine speed signal
No signal

CONFIRMATION DRIVING PATTERN

  1. Connect the Techstream to the DLC3.
  2. Turn the ignition switch to ON and turn the Techstream 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 Techstream on.
  6. Start the engine.
  7. Idle the engine for 20 seconds or more [A].
  8. Enter the following menus: Powertrain / Engine and ECT / Trouble Codes [B].
  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.

    Techstream 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 steps [A] and [B] again.
  13. If no pending DTC is output, perform a universal trip and check for permanent DTCs (COROLLA_ZRE142 RM000000PDK0ZBX.html).
    HINT:
    1. If a permanent DTC is output, the system is malfunctioning.
    2. If no permanent DTC is output, the system is normal.

WIRING DIAGRAM


Corolla. Zre142 Aze141.2Az-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 is output again, check the following items related to the camshaft position sensor.
    1. Installation condition of the camshaft position sensor
    2. Installation condition of the camshaft
    3. Connection of the camshaft position sensor connector
  2. If no problem is found through this diagnostic troubleshooting procedure, troubleshoot the engine mechanical systems.
  3. Check the engine speed. The engine speed can be checked using the Techstream. To check, follow the operation below:
    1. Connect the Techstream to the DLC3.
    2. Start the engine.
    3. Turn the Techstream on.
    4. Enter the following menus: Powertrain / Engine and ECT / Data List / Engine Speed.
    1. The engine speed may be indicated as zero despite the engine rotating normally. This is caused by a lack of NE signals from the crankshaft position sensor. Alternatively, the engine speed may be indicated as lower than the actual engine speed if the crankshaft position sensor output voltage is insufficient.
  4. Read freeze frame data using the Techstream. 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.
1.READ VALUE USING TECHSTREAM (ENGINE SPEED)

  1. Connect the Techstream to the DLC3.

  1. Turn the ignition switch to ON.

  1. Turn the Techstream on.

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

  1. Start the engine.

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

    OK:
    Correct values are displayed.
    HINT:
    1. To check the engine speed change, display the graph on the Techstream.
    2. If the engine does not start, check the engine speed while cranking.
    3. If the engine speed indicated on the Techstream 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 (COROLLA_ZRE142 RM000000PDQ0VNX.html)

2.INSPECT CRANKSHAFT POSITION SENSOR (RESISTANCE)

  1. Inspect the crankshaft position sensor (COROLLA_ZRE142 RM0000017V902CX.html).



NG
REPLACE CRANKSHAFT POSITION SENSOR (COROLLA_ZRE142 RM0000017VA02BX.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 (Check for Open):

    Tester Connection
    		Condition
    		Specified Condition
    B65-1 - B31-122 (NE+)
    		Always
    		Below 1 Ω
    B65-2 - B31-121 (NE-)
    		Always
    		Below 1 Ω

    Standard Resistance (Check for Short):

    Tester Connection
    		Condition
    		Specified Condition
    B65-1 or B31-122 (NE+) - Body ground
    		Always
    		10 kΩ or higher
    B65-2 or B31-121 (NE-) - Body ground
    		Always
    		10 kΩ or higher

  1. Reconnect the crankshaft position sensor connector.

  1. Reconnect the ECM connector.



NG
REPAIR OR REPLACE HARNESS OR CONNECTOR (CRANKSHAFT POSITION SENSOR - ECM)
OK


4.CHECK SENSOR INSTALLATION (CRANKSHAFT POSITION SENSOR)
Corolla. Zre142 Aze141.2Az-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 (COROLLA_ZRE142 RM0000017V802OX.html)
OK


5.INSPECT 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 (COROLLA_ZRE142 RM00000224600NX.html)
OK


6.REPLACE CRANKSHAFT POSITION SENSOR

  1. Replace the crankshaft position sensor (COROLLA_ZRE142 RM0000017VA02BX.html).


NEXT


7.CHECK WHETHER DTC OUTPUT RECURS

  1. Connect the Techstream to the DLC3.

  1. Turn the ignition switch to ON.

  1. Turn the Techstream on.

  1. Clear the DTCs (COROLLA_ZRE142 RM000000PDK0ZBX.html).

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

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

  1. Read DTCs.

    Result:

    Result
    		Proceed to
    No output
    		A
    P0335 or P0339
    		B
HINT:
If the engine does not start, replace the ECM.


B
REPLACE ECM (COROLLA_ZRE142 RM000002WT402ZX.html)
A

END