SFI SYSTEM, Diagnostic DTC:P033511, P033515, P03351F, P03352A, P033531

DTC Code DTC Name
P033511 Crankshaft Position Sensor "A" Circuit Short to Ground
P033515 Crankshaft Position Sensor "A" Circuit Short to Battery or Open
P03351F Crankshaft Position Sensor "A" Circuit Intermittent
P03352A Crankshaft Position Sensor "A" Signal Stuck in Range
P033531 Crankshaft Position Sensor "A" No Signal

DESCRIPTION

The crankshaft position sensor system consists of a crankshaft position sensor plate and Magneto Resistance Element (MRE) type sensor. The crankshaft position sensor plate has 34 teeth at 10° intervals (2 teeth are missing for detecting top dead center), and is installed on the crankshaft. The crankshaft position sensor generates 34 signals per crankshaft revolution. The ECM uses the NE signal to detect the crankshaft position and engine speed.

DTC No. DTC Detection Condition Trouble Area
P033511 The crankshaft position sensor output voltage is less than 0.3 V for 4 seconds or more (1 trip detection logic).

  • Open or short in crankshaft position sensor circuit

  • Crankshaft position sensor

  • ECM
P033515 The crankshaft position sensor output voltage is higher than 4.7 V for 4 seconds or more (1 trip detection logic).

  • Open or short in crankshaft position sensor circuit

  • Crankshaft position sensor

  • ECM
P03351F

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

(a) Engine speed 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 crankshaft position sensor circuit

  • Crankshaft position sensor

  • Crankshaft (crankshaft position sensor plate)

  • ECM
P03352A

No crankshaft position sensor signal to ECM while cranking (1 trip detection logic).

*

  • Open or short in crankshaft position sensor circuit

  • Crankshaft position sensor

  • Crankshaft (crankshaft position sensor plate)

  • ECM
P033531

The engine stalls and the engine speed signal value decreases rapidly (1 trip detection logic).

*

  • Open or short in crankshaft position sensor circuit

  • Crankshaft position sensor

  • Crankshaft (crankshaft position sensor plate)

  • ECM

Reference: Inspection using an oscilloscope.

A01W276E23
*a 2 V/DIV.
*b 20 ms./DIV.

Tech Tips

The correct waveform is as shown.

ECM Terminal Name Between NE+ and NE-
Tester Range 2 V/DIV., 20 ms./DIV.
Condition Idling with warm engine

MONITOR DESCRIPTION

A DTC will be stored if any of the following occurs:


MONITOR STRATEGY

Required Sensors/Components (Main) Crankshaft position sensor
Required Sensors/Components (Related) Camshaft position sensor
Frequency of Operation Continuous

CONFIRMATION DRIVING PATTERN


  1. Connect the GTS to the DLC3.

  2. Turn the engine switch on (IG) and turn the GTS on.

  3. Clear the DTCs (even if no DTCs are stored, perform the clear DTC procedure).

  4. Turn the engine switch off and wait for at least 30 seconds.

  5. Turn the engine switch on (IG) and turn the GTS on.

  6. Start the engine.

  7. Idle the engine for 20 seconds or more.

  8. Enter the following menus: Powertrain / Engine / Trouble Codes.

  9. Read the pending DTCs.

    Tech Tips


    • If a pending DTC is output, the system is malfunctioning.

    • If a pending DTC is not output, perform the following procedure.

  10. Enter the following menus: Powertrain / Engine / Utility / All Readiness.

  11. Input the DTC: P033511, P033515, P03351F, P03352A or P033531.

  12. Check the DTC judgment result.

    GTS 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

    Tech Tips


    • If the judgment result shows NORMAL, the system is normal.

    • If the judgment result shows ABNORMAL, the system has a malfunction.

    • If the judgment result shows INCOMPLETE or N/A, perform the Confirmation Driving Pattern and check the DTC judgment result again.

WIRING DIAGRAM

A01W3M5E95
*a Crankshaft Position Sensor

CAUTION / NOTICE / HINT

Tech Tips


  • 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 GTS. To perform the check, follow the procedures below:


    1. Connect the GTS to the DLC3.

    2. Turn the engine switch on (IG).

    3. Turn the GTS on.

    4. Start the engine.

    5. Enter the following menus: Powertrain / Engine / Data List / All Data / 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 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 GTS. 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 GTS (ENGINE SPEED)


    1. Connect the GTS to the DLC3.

    2. Turn the engine switch on (IG).

    3. Turn the GTS on.

    4. Enter the following menus: Powertrain / Engine / Data List / All Data / Engine Speed.

    5. Start the engine.

    6. Read the values displayed on the GTS while the engine is running.

      OK
      Correct values are displayed.

      Tech Tips


      • To check the engine speed change, display the graph on the GTS.

      • If the engine does not start, check the engine speed while cranking.

      • If the engine speed indicated on the GTS remains zero (0), there may be an open or short in the crankshaft position sensor circuit.


    OK

    CHECK FOR INTERMITTENT PROBLEMS Click here

    NG

  2. CHECK TERMINAL VOLTAGE (POWER SOURCE OF CRANKSHAFT POSITION SENSOR)


    1. A01W14XE02
      Text in Illustration
      *a

      Front view of wire harness connector

      (to Crankshaft Position Sensor)

      Disconnect the crankshaft position sensor connector.

    2. Turn the engine switch on (IG).

    3. Measure the voltage according to the value(s) in the table below.

      Standard Voltage
      Tester Connection Condition Specified Condition
      D91-1 (VC) - Body ground Engine switch on (IG) 4.5 to 5.5 V

    NG

    CHECK HARNESS AND CONNECTOR (CRANKSHAFT POSITION SENSOR - ECM) Click here

    OK

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


    1. Disconnect the crankshaft position sensor connector.

    2. Disconnect the ECM connector.

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

      Standard Resistance
      Tester Connection Condition Specified Condition
      D91-3 (NE+) - D87-76 (NE+) Always Below 1 Ω
      D91-2 (NE-) - D87-109 (NE-) Always Below 1 Ω
      D91-3 (NE+) or D87-76 (NE+) - Body ground and other terminals Always 10 kΩ or higher
      D91-2 (NE-) or D87-109 (NE-) - Body ground and other terminals Always 10 kΩ or higher

    NG

    REPAIR OR REPLACE HARNESS OR CONNECTOR

    OK

  4. CHECK SENSOR INSTALLATION (CRANKSHAFT POSITION SENSOR)


    1. A01W193E09
      Text in Illustration
      *a Clearance

      Check the crankshaft position sensor installation condition.

      OK
      Crankshaft position sensor is installed correctly.

    NG

    SECURELY REINSTALL CRANKSHAFT POSITION SENSOR Click here

    OK

  5. INSPECT CRANKSHAFT (TEETH OF CRANKSHAFT POSITION SENSOR PLATE)


    1. Inspect the teeth of the crankshaft position sensor plate.

      OK
      Crankshaft position sensor plate does not have any cracks or deformation.

    NG

    REPLACE CRANKSHAFT Click here

    OK

  6. REPLACE CRANKSHAFT POSITION SENSOR


    1. Replace the crankshaft position sensor Click here.


    NEXT

  7. CHECK WHETHER DTC OUTPUT RECURS (DTC P033511, P033515, P03351F, P03352A AND/OR P033531)


    1. Connect the GTS to the DLC3.

    2. Turn the engine switch on (IG).

    3. Turn the GTS on.

    4. Clear the DTCs.

    5. Turn the engine switch off and wait for at least 30 seconds.

    6. Turn the engine switch on (IG).

    7. Turn the GTS on.

    8. Start the engine.

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

    10. Enter the following menus: Powertrain / Engine / Trouble Codes.

    11. Read the DTCs.

      Result
      Result Proceed to
      DTCs are not output A
      P033511, P033515, P03351F, P03352A and/or P033531 is output B

      Tech Tips

      If the engine does not start, replace the ECM.


    A

    END

    B

    REPLACE ECM Click here

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


    1. Disconnect the crankshaft position sensor connector.

    2. Disconnect the ECM connector.

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

      Standard Resistance
      Tester Connection Condition Specified Condition
      D91-1 (VC) - D87-110 (VCNE) Always Below 1 Ω
      D91-1 (VC) or D87-110 (VCNE) - Body ground and other terminals Always 10 kΩ or higher

    OK

    REPLACE ECM Click here

    NG

    REPAIR OR REPLACE HARNESS OR CONNECTOR