Last Modified: 05-13-2024 6.11:8.1.0 Doc ID: RM100000001GHA0
Model Year Start: 2020 Model: Corolla Prod Date Range: [01/2019 - 03/2019]
Title: 2ZR-FAE (ENGINE CONTROL): SFI SYSTEM: P0335,P0339; Crankshaft Position Sensor "A" Circuit; 2020 MY Corolla [01/2019 - 03/2019]

DTC

P0335

Crankshaft Position Sensor "A" Circuit

DTC

P0339

Crankshaft Position Sensor "A" Circuit Intermittent

DESCRIPTION

The crank position sensor system consists of a No. 1 crankshaft position sensor plate and a pickup coil.

The No. 1 crankshaft position sensor plate has 34 teeth and is installed on the crankshaft. The pickup coil is made of wound copper wire, an iron core and a magnet. The No. 1 crankshaft position 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 speed. Based on these signals, the ECM calculates the crankshaft position and engine speed. Using these calculations, the fuel injection duration and ignition timing are controlled.

DTC No.

Detection Item

DTC Detection Condition

Trouble Area

MIL

Memory

P0335

Crankshaft Position Sensor "A" Circuit

One of the following conditions is met (1 trip detection logic):

  • No crank position sensor signal to ECM while cranking.
  • No crank position sensor signal to ECM while engine running.
  • Missing crank position sensor signal despite cam position sensor signal inputs normal after engine cranked.
  • Open or short in crank position sensor circuit
  • Crank position sensor
  • No. 1 crankshaft position sensor plate
  • ECM

Comes on

DTC stored

P0339

Crankshaft Position Sensor "A" Circuit Intermittent

Under conditions (a), (b) and (c), no crank position sensor signal to ECM for 0.05 seconds or more (1 trip detection logic):

(a) Engine speed is 1000 rpm or higher.

(b) Starter signal off.

(c) 3 seconds or more have elapsed since starter signal switched from on to off.
  • Open or short in crank position sensor circuit
  • Crank position sensor
  • No. 1 crankshaft position sensor plate
  • ECM

Does not come on

DTC stored

Reference: Inspection using an oscilloscope.

HINT:

  • The correct waveform is as shown.
  • Grounding failure of the shielded wire may cause a noisy waveform.

ECM Terminal Name

Between NE+ and NE-

Tester Range

5 V/DIV., 20 ms./DIV.

Condition

Idling with warm engine

MONITOR DESCRIPTION

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

MONITOR STRATEGY

Related DTCs

P0335: Crank position sensor verify pulse input

P0335: Crank position sensor range check/rationality

Required Sensors/Components (Main)

Crank position sensor

Required Sensors/Components (Related)

Cam position sensor

Frequency of Operation

Continuous

Duration

-: Verify pulse input (case 1)

0.016 seconds: Range check/rationality

4.7 seconds: Verify pulse input (case 2)

MIL Operation

Immediate

Sequence of Operation

None

TYPICAL ENABLING CONDITIONS

P0335: Crank Position Sensor Range Check/Rationality

All of the following conditions are met

-

Crank position sensor

Signal input

Ignition switch

ON

Time after starter off to on

3 seconds or more

Cam position sensor circuit fail (P0340, P0342, P0343)

Not detected

Number of cam position sensor signal pulse

6 times

Battery voltage

7 V or higher

Minimum battery voltage while starter on

Less than 11 V

P0335: Crank Position Sensor Verify Pulse Input (Case 1)

Monitor runs whenever the following DTCs are not stored

None

All of the following conditions are met

-

Engine speed

600 rpm or higher

Starter

Off

Time after starter on to off

3 seconds or more

P0335: Crank Position Sensor Verify Pulse Input (Case 2)

Monitor runs whenever the following DTCs are not stored

None

Both of the following conditions are met

-

Starter

On

Minimum battery voltage while starter on

Less than 11 V

TYPICAL MALFUNCTION THRESHOLDS

P0335: Crank Position Sensor Range Check/Rationality

Number of crank position sensor signal pulse

132 times or less, or 174 times or more

P0335: Crank Position Sensor Verify Pulse Input

Crank position sensor signal

No signal

COMPONENT OPERATING RANGE

Crank position sensor
  • Crank position sensor output voltage fluctuates while crankshaft is revolving
  • 34 crank position sensor signals per crankshaft revolution

CONFIRMATION DRIVING PATTERN

  1. Connect the Techstream to the DLC3.
  2. Turn the ignition switch to ON.
  3. Turn the Techstream on.
  4. Clear the DTCs (even if no DTCs are stored, perform the clear DTC procedure).
  5. Turn the ignition switch off and wait for at least 30 seconds.
  6. Turn the ignition switch to ON.
  7. Turn the Techstream on.
  8. Start the engine.
  9. Idle the engine for 20 seconds or more [A].
  10. Enter the following menus: Powertrain / Engine and ECT / Trouble Codes [B].
  11. Read the pending DTCs.

    HINT:

    • If a pending DTC is output, the system is malfunctioning.
    • If a pending DTC is not output, perform the following procedure.
  12. Enter the following menus: Powertrain / Engine and ECT / Utility / All Readiness.
  13. Input the DTC: P0335 or P0339.
  14. Check the DTC judgment result.

    Techstream Display

    Description

    NORMAL
    • DTC judgment completed
    • System normal

    ABNORMAL
    • DTC judgment completed
    • System abnormal

    INCOMPLETE
    • DTC judgment not completed
    • Perform driving pattern after confirming DTC enabling conditions

    N/A
    • Unable to perform DTC judgment
    • Number of DTCs which do not fulfill DTC preconditions has reached ECU memory limit

    HINT:

    • If the judgment result shows NORMAL, the system is normal.
    • If the judgment result shows ABNORMAL, the system has a malfunction.
  15. If the judgment result is INCOMPLETE or N/A and no pending DTC is output, perform a universal trip and check for permanent DTCs.

    Click here 2020 MY Corolla [01/2019 - 03/2019]; 2ZR-FAE (ENGINE CONTROL): SFI SYSTEM: DTC CHECK / CLEAR

    HINT:

    • If a permanent DTC is output, the system is malfunctioning.
    • If no permanent DTC is output, the system is normal.

WIRING DIAGRAM

CAUTION / NOTICE / HINT

HINT:

  • After performing the inspection procedure for the crank position sensor, if DTC P0335 is output again, check the following items related to the cam position sensor.
    • Installation condition of the cam position sensor
    • Installation condition of the camshaft
    • Connection of the cam position sensor connector
  • If no problem is found by this diagnostic troubleshooting procedure, check for problems by referring to the engine mechanical section.
  • The engine speed can be checked by using the Techstream. To perform the check, follow the procedures 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.
    • The engine speed may be indicated as zero despite the engine running normally. This is caused by a lack of NE signals from the crank position sensor. Alternatively, the engine speed may be indicated as lower than the actual engine speed if the crank position sensor output voltage is insufficient.
  • 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 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.

PROCEDURE

1.

READ VALUE USING TECHSTREAM (ENGINE SPEED)

(a) Connect the Techstream to the DLC3.

(b) Turn the ignition switch to ON.

(c) Turn the Techstream on.

(d) Enter the following menus: Powertrain / Engine and ECT / Data List / Engine Speed.

Powertrain > Engine and ECT > Data List

Tester Display

Engine Speed

(e) Start the engine.

(f) Read the values displayed on the Techstream while the engine is running.

Standard:

Correct values are displayed.

HINT:

  • To check the engine speed change, display the graph on the Techstream.
  • If the engine does not start, check the engine speed while cranking.
  • If the engine speed indicated on the Techstream remains zero (0), there may be an open or short in the crank position sensor circuit.
OK

CHECK FOR INTERMITTENT PROBLEMS

NG

2.

INSPECT CRANK POSITION SENSOR

(a) Inspect the crank position sensor.

Click here 2020 - 2023 MY Corolla [01/2019 - 11/2022]; 2ZR-FAE (ENGINE CONTROL): CRANKSHAFT POSITION SENSOR: INSPECTION

NG

REPLACE CRANK POSITION SENSOR

OK

3.

CHECK HARNESS AND CONNECTOR (CRANK POSITION SENSOR - ECM)

(a) Disconnect the crank position sensor connector.

(b) Disconnect the ECM connector.

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

Standard Resistance:

Tester Connection

Condition

Specified Condition

C12-1 (NE) - C77-114 (NE+)

Always

Below 1 Ω

C12-2 (NE-) - C77-113 (NE-)

Always

Below 1 Ω

C12-1 (NE) or C77-114 (NE+) - Body ground and other terminals

Always

10 kΩ or higher

C12-2 (NE-) or C77-113 (NE-) - Body ground and other terminals

Always

10 kΩ or higher
NG

REPAIR OR REPLACE HARNESS OR CONNECTOR
OK

4.

CHECK SENSOR INSTALLATION AND CONDUCT VISUAL INSPECTION (CRANK POSITION SENSOR)

*a

OK

*b

NG

*c

Clearance

(a) Visually check the crank position sensor for damage.

(b) Check the crank position sensor installation condition.

OK:

The crank position sensor does not have any damage and is installed properly.

NG

SECURELY REINSTALL CRANK POSITION SENSOR

OK

5.

INSPECT NO. 1 CRANKSHAFT POSITION SENSOR PLATE (TEETH OF SENSOR PLATE)

(a) Inspect the teeth of the No. 1 crankshaft position sensor plate.

OK:

No. 1 crankshaft position sensor plate does not have any cracks or deformation.

OK

REPLACE ECM

NG

REPLACE NO. 1 CRANKSHAFT POSITION SENSOR PLATE