MULTI-MODE MANUAL TRANSAXLE SYSTEM, Diagnostic DTC:P0919

DTC Code DTC Name
P0919 Gear Shift Position Control Error

DESCRIPTION

In the multi-mode manual transaxle system, the transaxle gear is shifted up and down by the transmission control ECU using a shift and select actuator. The shift and select actuator assembly consists of two motors (shift motor and select motor), stroke sensors (shift stroke sensor and select stroke sensor) and gears to move the shift and select lever shaft. The shift motor moves the shift and select lever shaft in the shift direction according to the signal from the transmission control ECU.

This DTC is set in accordance with the stroke speed of the shift and select actuator or the difference between the target shift position and the actual shift position. Therefore, if malfunctions occur in the shift stroke sensor or the shift motor circuit, the DTCs relating to the sensor or motor circuit open/short (DTC P0915, P0916, P0917 and/or P0920) are set before this DTC is set.

DTC No. DTC Detection Condition Trouble Area
P0919

The Transmission control ECU detects the following conditions simultaneously for 2.0 seconds:

(1-trip detection logic)


  1. Shift motor current is 32A or more, or -32A or less.

  2. Difference between target shift position and actual shift position is 0.3 mm (0.0118 in.) or more.

  3. Shift and select actuator movement is 122 mm/sec (4.8 in./sec) or less.

  • Shift stroke sensor

  • Shift and select actuator assembly (shift motor)

  • Transmission control ECU

  • Transaxle assembly

WIRING DIAGRAM

A013809E01

INSPECTION PROCEDURE

Note

In shift stroke sensor or shift and select actuator assembly replacement, perform the [Initialization and Learning] procedure Click here and [Synchronization Position Calibration] procedure Click here after installing the sensor or actuator assembly. If the sensor or actuator is installed without performing [Initialization and Learning] and [Synchronization Position Calibration], it may cause driving performance degradation or system component breakage.

Tech Tips

If the symptom still occurs even after checking the following parts for dirt, wear, and defects and replacing the defective parts, replace the transmission control ECU.


  • Synchronizer rings

  • Shift forks

  • Hub sleeves

PROCEDURE


  1. PERFORM ACTIVE TEST USING INTELLIGENT TESTER (TARGET GEAR POSITION CONTROL)


    1. Remove the shift and select actuator assembly Click here.

    2. Connect the shift and select actuator assembly connector.

    3. Connect the intelligent tester to the DLC3.

    4. Turn the ignition switch to ON.

    5. Turn the tester on.

    6. Enter the following menus: Powertrain / Multi-Mode M/T / Active Test / Target Gear Position Control.

      OK
      Shift and select actuator moves smoothly in accordance with the tester operation.

    NG

    Click here

    OK

  2. INSPECT SHIFT STROKE SENSOR


    1. Remove the shift stroke sensor.

    2. A01376TE03
      Text in Illustration
      *1 Sensor Arm
      *a

      Component without harness connected

      (Shift Stroke Sensor)
      *b Main

      Measure the voltage between the terminals of the shift stroke sensor connector (main).


      1. Prepare 3 dry cell batteries (1.5 V) and 2 leads for connecting the batteries and the sensor.

      2. Connect the batteries in series.

      3. Connect the positive battery terminal to sensor terminal 3 (VCS1), and the negative battery terminal to sensor terminal 2 (E2S1).

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

        Standard Voltage (combined dry cell battery voltage of 4.5 V)
        Tester Connection

        Condition

        (Sensor Angle)

        		 Specified Condition
        1 (VSS1) - 2 (E2S1) 55° Approximately 4.05 V
        0° Approximately 2.25 V
        -55° Approximately 0.45 V
        Reference Voltage (combined dry cell battery voltage of 5.0 +/- 0.3 V)
        Tester Connection

        Condition

        (Sensor Angle)

        		 Specified Condition
        1 (VSS1) - 2 (E2S1) 55° Approximately 4.5 V
        0° Approximately 2.5 V
        -55° Approximately 0.5 V
    3. A01376TE04
      Text in Illustration
      *1 Sensor Arm
      *a

      Component without harness connected

      (Shift Stroke Sensor)
      *b Sub

      Measure the voltage between the terminals of the shift stroke sensor connector (Sub).


      1. Connect the positive battery terminal to sensor terminal 6 (VCS2), and the negative battery terminal to sensor terminal 5 (E2S2).

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

        Standard Voltage (combined dry cell battery voltage of 4.5 V)
        Tester Connection

        Condition

        (Sensor Angle)

        		 Specified Condition
        4 (VSS2) - 5 (E2S2) 55° Approximately 4.05 V
        0° Approximately 2.25 V
        -55° Approximately 0.45 V
        Reference Voltage (combined dry cell battery voltage of 5.0 +/- 0.3 V)
        Tester Connection

        Condition

        (Sensor Angle)

        		 Specified Condition
        4 (VSS2) - 5 (E2S2) 55° Approximately 4.5 V
        0° Approximately 2.5 V
        -55° Approximately 0.5 V

        Note


        • Do not apply more than 6 V

        • Do not use a sensor which has been dropped.


    NG

    Click here

    OK

  3. INSPECT TRANSMISSION CONTROL ECU (MSF TERMINAL VOLTAGE)


    1. Turn the ignition switch to ON.

    2. A0137QSE15
      Text in Illustration
      *a

      Component with harness connected

      (Transmission Control ECU)

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

      Standard Voltage
      Tester Connection Switch Condition Specified Condition
      A49-4 (MSF+) - Body ground Ignition switch ON 4.0 to 7.0 V
      A49-3 (MSF-) - Body ground Ignition switch ON 4.0 to 7.0 V

    3. Turn the ignition switch off.


    NG

    Click here

    OK

  4. INSPECT TRANSAXLE ASSEMBLY


    1. Remove the transaxle assembly Click here.

    2. Check for dirt, wear and defects in the gear shift mechanical system (synchronizer rings, shift forks, hub sleeves, etc.).

      OK
      No defective parts in the transaxle assembly.

    NG

    REPAIR OR REPLACE DEFECTIVE PART IN TRANSAXLE ASSEMBLY

    OK

  5. REPLACE TRANSMISSION CONTROL ECU


    1. Replace the transmission control ECU Click here.


    NEXT

  6. PERFORM INITIALIZATION


    1. Perform the initialization and learning for multi-mode manual transaxle system Click here.


    NEXT

    CHECK HARNESS AND CONNECTOR (TRANSMISSION CONTROL ECU - SHIFT MOTOR)

  7. CHECK TERMINAL CONDITION (TRANSMISSION CONTROL ECU)


    1. Disconnect the A49 transmission control ECU connector.

    2. Check the connections of the transmission control ECU connector.

      OK
      The transmission control ECU and wire harness connectors and connector terminals are connected securely and are not bent, rusted, or damaged.

    NG

    CONNECT CORRECTLY

    OK

  8. CHECK SHIFT MOTOR CIRCUIT


    1. A0137TQE12
      Text in Illustration
      *a

      Front view of wire harness connector

      (to Transmission Control ECU)

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

      Standard Resistance
      Tester Connection Switch Condition Specified Condition
      A49-4 (MSF+) - A28-3 (MSF-) Always 0.1 to 100 Ω
      A49-4 (MSF+) - Body ground Always 10 kΩ or higher
      A49-3 (MSF-) - Body ground Always 10 kΩ or higher

    NG

    CHECK TERMINAL CONDITION (SHIFT MOTOR) Click here

    OK

  9. REPLACE TRANSMISSION CONTROL ECU


    1. Replace the transmission control ECU Click here.


    NEXT

  10. PERFORM INITIALIZATION


    1. Perform the initialization and learning for multi-mode manual transaxle system Click here.


    NEXT

    END

  11. CHECK TERMINAL CONDITION (SHIFT MOTOR)


    1. Disconnect the B30 shift motor connector.

    2. Check the connections of the shift motor connector.

      OK
      The shift motor and wire harness connectors and connector terminals are connected securely and are not bent, rusted, or damaged.

    NG

    CONNECT CORRECTLY

    OK

  12. CHECK HARNESS AND CONNECTOR (TRANSMISSION CONTROL ECU - SHIFT MOTOR)


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

      Standard Resistance
      Tester Connection Switch Condition Specified Condition
      A49-4 (MSF+) - B30-2 Always Below 1 Ω
      A49-3 (MSF-) - B30-1 Always Below 1 Ω
      A49-4 (MSF+) or B30-2 - Body ground Always 10 kΩ or higher
      A49-3 (MSF-) or B30-1 - Body ground Always 10 kΩ or higher

    NG

    REPAIR OR REPLACE HARNESS OR CONNECTOR

    OK

  13. INSPECT SHIFT AND SELECT ACTUATOR ASSEMBLY (SHIFT MOTOR)


    1. Disconnect the B30 shift motor connector.

    2. A01389RE02
      Text in Illustration
      *a

      Component without harness connected

      (Shift and Select Actuator Assembly (Shift Motor))

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

      Standard Resistance
      Tester Connection Condition Specified Condition
      1 - 2 Always 0.1 to 100 Ω
      1 - Body ground Always 10 kΩ or higher
      2 - Body ground Always 10 kΩ or higher

    NG

    Click here

    OK

    CHECK INTERMITTENT PROBLEMS Click here

  14. REPLACE SHIFT AND SELECT ACTUATOR ASSEMBLY


    1. Replace the shift and select actuator assembly Click here.


    NEXT

  15. PERFORM INITIALIZATION


    1. Perform the initialization and learning for multi-mode manual transaxle system Click here.


    NEXT

    END

  16. REPLACE SHIFT STROKE SENSOR


    1. Replace the shift stroke sensor Click here.


    NEXT

  17. PERFORM INITIALIZATION


    1. Perform the initialization and learning for multi-mode manual transaxle system Click here.


    NEXT

    END