Last Modified: 05-13-2024 6.11:8.1.0 Doc ID: RM100000001BGX0
Model Year Start: 2019 Model: Corolla Hatchback Prod Date Range: [06/2018 - 03/2019]
Title: M20A-FKS (ENGINE CONTROL): SFI SYSTEM: P03351F; Crankshaft Position Sensor "A" Circuit Intermittent; 2019 - 2020 MY Corolla Corolla Hatchback [06/2018 - 03/2019]

DTC

P03351F

Crankshaft Position Sensor "A" Circuit Intermittent

DESCRIPTION

Refer to DTC P033511.

Click here 2019 - 2020 MY Corolla Corolla Hatchback [06/2018 - 03/2019]; M20A-FKS (ENGINE CONTROL): SFI SYSTEM: P033511; Crankshaft Position Sensor "A" Circuit Short to Ground+

DTC No.

Detection Item

DTC Detection Condition

Trouble Area

MIL

Memory

Note

P03351F

Crankshaft Position Sensor "A" Circuit Intermittent

Diagnosis condition:

  • All of the following conditions are met
    • Engine speed is 1000 rpm or higher
    • Starter signal is off
    • 3 seconds or more have elapsed since the starter signal switched from on to off

Abnormal condition:

  • No crankshaft position sensor signal.

Malfunction time:

  • 0.05 seconds or more

Trip logic:

  • 1 trip detection logic

Detection conditions:

  • Continuous

Sensors/components used for detection (Main):

  • Crankshaft position sensor

Sensors/components used for detection (Related):

  • Camshaft position sensor
  • Open or short in crankshaft position sensor circuit
  • Crankshaft position sensor
  • ECM

Does not come on

DTC stored

SAE Code: P0339
  • Reference: Inspection using an oscilloscope.

    Click here 2019 - 2020 MY Corolla Corolla Hatchback [06/2018 - 03/2019]; M20A-FKS (ENGINE CONTROL): SFI SYSTEM: P033511; Crankshaft Position Sensor "A" Circuit Short to Ground+

MONITOR DESCRIPTION

When the engine is running and no crankshaft position sensor signal is received for 0.05 seconds or more, the ECM determines that the crankshaft position sensor circuit is malfunctioning and stores a DTC.

MONITOR STRATEGY

Required Sensors/Components (Main)

Crankshaft position sensor

Required Sensors/Components (Related)

Camshaft position sensor

Frequency of Operation

Continuous

CONFIRMATION DRIVING PATTERN

HINT:

  • After repair has been completed, clear the DTC and then check that the vehicle has returned to normal by performing the following All Readiness check procedure.

    Click here 2019 - 2022 MY Corolla Corolla Hatchback [06/2018 - 09/2022]; M20A-FKS (ENGINE CONTROL): SFI SYSTEM: DTC CHECK / CLEAR

  • When clearing the permanent DTCs, refer to the "CLEAR PERMANENT DTC" procedure.

    Click here 2019 - 2022 MY Corolla Corolla Hatchback [06/2018 - 09/2022]; M20A-FKS (ENGINE CONTROL): SFI SYSTEM: DTC CHECK / CLEAR

  1. Connect the Techstream to the DLC3.
  2. Turn the engine switch on (IG).
  3. Turn the Techstream on.
  4. Clear the DTCs (even if no DTCs are stored, perform the clear DTC procedure).
  5. Turn the engine switch off and wait for at least 30 seconds.
  6. Start the engine [A].
  7. Run the engine at an engine speed of 1000 rpm for 5 seconds or more [B].
  8. Turn the Techstream on.
  9. Enter the following menus: Powertrain / Engine / Trouble Codes [C].
  10. 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.
  11. Enter the following menus: Powertrain / Engine / Utility / All Readiness.
  12. Proceed to the next screen and enter the DTC to be checked.
  13. 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

    HINT:

    • If the judgment result is NORMAL, the system is normal.
    • If the judgment result is ABNORMAL, the system has a malfunction.
    • If the judgment result is INCOMPLETE, perform steps [A] through [C] again.
    • [A] to [C]: Normal judgment procedure.

      The normal judgment procedure is used to complete DTC judgment and also used when clearing permanent DTCs.

    • When clearing the permanent DTCs, do not disconnect the cable from the battery terminal or attempt to clear the DTCs during this procedure, as doing so will clear the universal trip and normal judgment histories.

WIRING DIAGRAM

Refer to DTC P033511.

Click here 2019 - 2020 MY Corolla Corolla Hatchback [06/2018 - 03/2019]; M20A-FKS (ENGINE CONTROL): SFI SYSTEM: P033511; Crankshaft Position Sensor "A" Circuit Short to Ground+

CAUTION / NOTICE / HINT

HINT:

  • 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. Turn the engine switch on (IG).
    3. Turn the Techstream on.
    4. Enter the following menus: Powertrain / Engine / Data List / Engine Speed.
    5. Start the engine.
    • 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 lower than the actual engine speed if the crankshaft 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.

CHECK DTC OUTPUT (DTC P03351F AND P033511, P033515 OR P033531)

(a) Connect the Techstream to the DLC3.

(b) Turn the engine switch on (IG).

(c) Turn the Techstream on.

(d) Enter the following menus: Powertrain / Engine / Trouble Codes.

(e) Read the DTCs.

Powertrain > Engine > Trouble Codes

Result

Proceed to

DTC P03351F is output

A

DTC P03351F and P033511, P033515 or P033531 are output

B

HINT:

If DTC P033511, P033515 or P033531 is output, perform troubleshooting for those DTCs first.

B

GO TO DTC CHART 2019 MY Corolla Corolla Hatchback [06/2018 - 01/2019]; M20A-FKS (ENGINE CONTROL): SFI SYSTEM: DIAGNOSTIC TROUBLE CODE CHART 2020 MY Corolla Corolla Hatchback [01/2019 - 03/2019]; M20A-FKS (ENGINE CONTROL): SFI SYSTEM: DIAGNOSTIC TROUBLE CODE CHART

A

2.

CHECK TERMINAL VOLTAGE AND INTERNAL RESISTANCE (CRANKSHAFT POSITION SENSOR AND ECM)

*a

Front view of wire harness connector

(to Crankshaft Position Sensor)

HINT:

Make sure that the connector is properly connected. If it is not, securely connect it and check for DTCs again.

(a) Disconnect the crankshaft position sensor connector.

(b) Turn the engine switch on (IG).

(c) While jiggling the ECM connector, measure the voltage according to the table below.

Standard Voltage:

Tester Connection

Condition

Specified Condition

Z4-3 (VCNE) - Body ground

Engine switch on (IG)

4.5 to 5.5 V

Z4-1 (NE+) - Body ground

Engine switch on (IG)

3.0 to 5.0 V

HINT:

By jiggling the connector while performing the inspection, it is possible to confirm that the terminals are contacting with sufficient pressure.

(d) Turn the engine switch off.

(e) While jiggling the ECM connector, measure the resistance according to the table below.

Standard Resistance:

Tester Connection

Condition

Specified Condition

Z4-2 (NE-) - Body ground

Engine switch off

Below 1 Ω

HINT:

By jiggling the connector while performing the inspection, it is possible to confirm that the terminals are contacting with sufficient pressure.

NG

GO TO STEP 4

OK

3.

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

*a

Clearance

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

(b) Check the crankshaft position sensor installation condition.

OK:

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

OK

REPLACE CRANKSHAFT POSITION SENSOR 2019 MY Corolla Corolla Hatchback [06/2018 - 01/2019]; M20A-FKS (ENGINE CONTROL): CRANKSHAFT POSITION SENSOR: REMOVAL 2020 MY Corolla Corolla Hatchback [01/2019 - 03/2019]; M20A-FKS (ENGINE CONTROL): CRANKSHAFT POSITION SENSOR: REMOVAL

NG

SECURELY REINSTALL CRANKSHAFT POSITION SENSOR

4.

CHECK HARNESS AND CONNECTOR (CRANKSHAFT POSITION SENSOR - ECM)

(a) Disconnect the crankshaft 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

Z4-3 (VCNE) - C76-116 (VCNE)

Always

Below 1 Ω

Z4-1 (NE+) - C76-93 (NE+)

Always

Below 1 Ω

Z4-2 (NE-) - C76-115 (NE-)

Always

Below 1 Ω

Z4-3 (VCNE) or C76-116 (VCNE) - Body ground and other terminals

Always

10 kΩ or higher

Z4-1 (NE+) or C76-93 (NE+) - Body ground and other terminals

Always

10 kΩ or higher

Z4-2 (NE-) or C76-115 (NE-) - Body ground and other terminals

Always

10 kΩ or higher
OK

REPLACE ECM 2019 MY Corolla Corolla Hatchback [06/2018 - 01/2019]; M20A-FKS (ENGINE CONTROL): ECM: REMOVAL 2020 MY Corolla Corolla Hatchback [01/2019 - 03/2019]; M20A-FKS (ENGINE CONTROL): ECM: REMOVAL

NG

REPAIR OR REPLACE HARNESS OR CONNECTOR