MULTI-MODE MANUAL TRANSAXLE SYSTEM, Diagnostic DTC:P0905, P0906, P0907

DTC Code DTC Name
P0905 Gate Select Position Circuit Range / Performance
P0906 Gate Select Position Circuit Low
P0907 Gate Select Position Circuit High

DESCRIPTION

The select stroke sensor is mounted on the shift and select actuator, and detects the select position of the shift and select lever shaft. The sensor consists of a sensor arm, magnetic yoke and 2 Hall ICs. This sensor is a non-contact type, and uses Hall effect elements (Hall ICs: main and sub), in order to yield accurate signals.

When the shift and select actuator is operating in the select direction, the magnetic yoke that is coaxially positioned on the sensor arm is rotated and the magnet position changes. The Hall ICs convert the magnet position change into voltage signals and send them to the transmission control ECU. The transmission control ECU judges the select motor operating condition (which gear shift fork shaft is selected: No. 1, No. 2, No. 3 or Reverse) based on the signal from the select stroke sensor.

The main and sub circuits in the select stroke sensor have the same output characteristics. The sensor construction and operation of the select stroke sensor are basically the same as those of the clutch stroke sensor.

A0138BCE01
Text in Illustration
*a Shift and Select Actuator Operation
*b Shift Direction
*c Select Direction
A0135SGE04
DTC No. DTC Detection Condition Trouble Area
P0905

Deviation between sensor signal 1 (main) and sensor signal 2 (sub) is 2.0 mm (0.078 in.) or more for 1.0 second or more

(1-trip detection logic)

  • Select stroke sensor

  • Wire harness or connector

  • Transmission control ECU
P0906

Select stroke sensor (main) signal voltage is 0.2 V or less for 0.5 seconds or more

(1-trip detection logic)

Select stroke sensor (sub) signal voltage is 0.2 V or less for 0.5 seconds or more

(1-trip detection logic)
P0907

Select stroke sensor (main) signal voltage is 4.8 V or more for 0.5 seconds or more

(1-trip detection logic)

Select stroke sensor (sub) signal voltage is 4.8 V or more for 0.5 seconds or more

(1-trip detection logic)

WIRING DIAGRAM

A0137XWE02

INSPECTION PROCEDURE

Note

In select stroke sensor replacement, perform [Initialization and Learning] Click here and [Synchronization Position Calibration] Click here after installing the sensor.

If the sensor is installed without performing [Initialization and Learning] procedure and [Synchronization Position Calibration] procedure, it may cause driving performance degradation or system component breakage.

PROCEDURE


  1. INSPECT TRANSMISSION CONTROL ECU (VCL1 AND VCL2 VOLTAGE)


    1. Disconnect the select stroke sensor connector.

    2. A0137MIE15
      Text in Illustration
      *a

      Front view of wire harness connector

      (to Select Stroke Sensor)

      Turn the ignition switch to ON.

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

      Standard Voltage
      Tester Connection Switch Condition Specified Condition
      A25-5 (E2L2) - A25-6 (VCL2) Ignition Switch ON 4.7 to 5.3 V
      A25-2 (E2L1) - A25-3 (VCL1) Ignition Switch ON 4.7 to 5.3 V

    NG

    CHECK HARNESS AND CONNECTOR (SELECT STROKE SENSOR - TRANSMISSION CONTROL ECU) Click here

    OK

  2. INSPECT SELECT STROKE SENSOR


    1. Remove the select stroke sensor.

    2. A01376TE11
      Text in Illustration
      *1 Sensor Arm
      *a

      Component without harness connected

      (Select Stroke Sensor)
      *b Main

      Measure the voltage between the terminals of the select 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 (VCL1), and the negative battery terminal to sensor terminal 2 (E2L1).

      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 (VSL1) - 2 (E2L1) 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 (VSL1) - 2 (E2L1) 55° Approximately 4.5 V
        0° Approximately 2.5 V
        -55° Approximately 0.5 V
    3. A01376TE12
      Text in Illustration
      *1 Sensor Arm
      *a

      Component without harness connected

      (Select Stroke Sensor)
      *b Sub

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


      1. Connect the positive battery terminal to sensor terminal 6 (VCL2), and the negative battery terminal to sensor terminal 5 (E2L2).

      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 (VSL2) - 5 (E2L2) 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 (VSL2) - 5 (E2L2) 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

    REPLACE SELECT STROKE SENSOR Click here

    OK

  3. CHECK HARNESS AND CONNECTOR (SELECT STROKE SENSOR - TRANSMISSION CONTROL ECU)


    1. Disconnect the A28 transmission control ECU connector.

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

      Standard Resistance
      Tester Connection Condition Specified Condition
      A25-4 (VSL2) - A28-32 (VSL2) Always Below 1 Ω
      A25-1 (VSL1) - A28-21 (VSL1) Always Below 1 Ω
      A28-21 (VSL1) - Body ground Always 10 kΩ or higher
      A28-32 (VSL2) - Body ground Always 10 kΩ or higher

    NG

    REPAIR OR REPLACE HARNESS OR CONNECTOR

    OK

  4. REPLACE TRANSMISSION CONTROL ECU


    1. Replace the transmission control ECU Click here.


    NEXT

  5. PERFORM INITIALIZATION


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


    NEXT

    END

  6. CHECK HARNESS AND CONNECTOR (SELECT STROKE SENSOR - TRANSMISSION CONTROL ECU)


    1. Disconnect the A28 transmission control ECU connector.

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

      Standard Resistance
      Tester Connection Condition Specified Condition
      A25-6 (VCL2) - A28-31 (VCL2) Always Below 1 Ω
      A25-5 (E2L2) - A28-24 (E2L2) Always Below 1 Ω
      A25-3 (VCL1) - A28-20 (VCL1) Always Below 1 Ω
      A25-2 (E2L1) - A28-22 (E2L1) Always Below 1 Ω
      A28-20 (VCL1) - Body ground Always 10 kΩ or higher
      A28-22 (E2L1) - Body ground Always 10 kΩ or higher
      A28-24 (E2L2) - Body ground Always 10 kΩ or higher
      A28-31 (VCL2) - Body ground Always 10 kΩ or higher

    NG

    REPAIR OR REPLACE HARNESS OR CONNECTOR

    OK

  7. REPLACE TRANSMISSION CONTROL ECU


    1. Replace the transmission control ECU Click here.


    NEXT

  8. PERFORM INITIALIZATION


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


    NEXT

    END

  9. REPLACE SELECT STROKE SENSOR


    1. Replace the select stroke sensor Click here.


    NEXT

  10. PERFORM INITIALIZATION


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


    NEXT

    END