MULTI-MODE MANUAL TRANSAXLE SYSTEM, Diagnostic DTC:P0806, P0807, P0808

DTC Code DTC Name
P0806 Clutch Position Sensor "A" Circuit Range / Performance
P0807 Clutch Position Sensor (Low)
P0808 Clutch Position Sensor (High)

DESCRIPTION

The clutch stroke sensor is mounted on the clutch actuator, and detects the push rod position of clutch actuator. 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 clutch actuator is operating, 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 the voltage signals and send it to the transmission control ECU. The transmission control ECU judges the clutch condition (whether the clutch is engaged, disengaged, or partially engaged) based on the signal from the clutch stroke sensor.

The main and sub circuits in the clutch stroke sensor have the same output characteristics.

A01377IE02
DTC No. DTC Detection Conditions Trouble Areas
P0806

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)

  • Clutch stroke sensor

  • Open or short in clutch stroke sensor circuit

  • Transmission control ECU
P0807

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

(1 trip detection logic)

  • Clutch stroke sensor

  • Open or short in clutch stroke sensor circuit

  • Transmission control ECU
P0807

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

(1 trip detection logic)

  • Clutch stroke sensor

  • Open or short in clutch stroke sensor circuit

  • Transmission control ECU
P0808

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

(1 trip detection logic)

  • Clutch stroke sensor

  • Open or short in clutch stroke sensor circuit

  • Transmission control ECU
P0808

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

(1 trip detection logic)

  • Clutch stroke sensor

  • Open or short in clutch stroke sensor circuit

  • Transmission control ECU

WIRING DIAGRAM

A0138BHE05

INSPECTION PROCEDURE

Note

In clutch stroke sensor replacement, perform the initialization and learning of the multi-mode manual transmission system after installing the sensor Click here.

If the sensor is installed without the initialization and learning, it may cause driving performance degradation or system component breakage.

Tech Tips

When only DTC P0806 is set, replace the clutch stroke sensor.

PROCEDURE


  1. READ OUTPUT DTC


    1. Connect the intelligent tester to the DLC3.

    2. Turn the ignition switch to ON and turn the tester ON.

    3. Select the following menu items: Powertrain / Multi-Mode M/T / DTC.

    4. Read DTCs.

      Result
      Display (DTC Output) Proceed To
      P0806, P0807 and/or P0808 A
      Only P0806 B

    B

    REPLACE CLUTCH STROKE SENSOR

    A

  2. READ VALUE USING INTELLIGENT TESTER


    1. Connect the intelligent tester to the DLC3.

    2. Turn the ignition switch to ON and the tester ON.

    3. Select the following menu items: Powertrain / Multi-Mode M/T / Data List / Clutch Position (Current).

      Items

      [Abbreviation]

      		 Measurement Items: Display Normal Conditions Diagnostic Notes

      Clutch Position (Current)

      [Clutch Pos-Cur]

      Current clutch position:

      Min.: 0 mm, Max.: 127.998 mm

      		 19.0 mm (0.74 in.) to 44.0 mm (1.73 in.) Current clutch position displayed
      OK
      The value on the tester is within the normal range.

    OK

    INSPECT CLUTCH STROKE SENSOR (SUB) Click here

    NG

  3. INSPECT CLUTCH STROKE SENSOR (MAIN)

    A0138U2E03

    1. Remove the clutch stroke sensor.

    2. Measure the voltage between the terminals of the clutch 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 and sensor terminal 3, and the negative battery terminal and sensor terminal 2.

      4. Check the voltage between terminals 1 and 2.

        Standard Voltage (combined dry cell battery voltage of 4.5 V)
        Sensor Angle Terminal (1-2) Output Voltage
        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)
        Sensor Angle Terminal (1-2) Output Voltage
        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.

    3. Reinstall the clutch stroke sensor Click here.

    4. Perform initialization and learning Click here.


    NG

    REPLACE CLUTCH STROKE SENSOR

    OK

  4. INSPECT CLUTCH STROKE SENSOR (SUB)


    1. Remove the clutch stroke sensor.

    2. A0138U2E04

      Measure the voltage between the terminals of the clutch stroke sensor connector (sub).


      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 and sensor terminal 6, and the negative battery terminal and sensor terminal 5.

      4. Check the voltage between terminals 4 and 5.

        Standard Voltage (combined dry cell battery voltage of 4.5 V)
        Sensor Angle Terminal (4-5) Output Voltage
        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)
        Sensor Angle Terminal (4-5) Output Voltage
        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.

    3. Reinstall the clutch stroke sensor Click here.

    4. Perform initialization and learning Click here.


    NG

    REPLACE CLUTCH STROKE SENSOR

    OK

  5. CHECK HARNESS AND CONNECTOR (CLUTCH STROKE SENSOR - TRANSMISSION CONTROL ECU)

    A0136J2E02

    1. Disconnect the clutch stroke sensor connector.

    2. Disconnect the transmission control ECU connector.

    3. Check the resistance.

      Standard Resistance
      Tester Connections Specified Conditions
      VCR2 (A28-35) - (A24-6) Below 1 Ω
      VSR2 (A28-34) - (A24-4) Below 1 Ω
      E2R2 (A28-33) - (A24-5) Below 1 Ω
      VCR1 (A28-27) - (A24-3) Below 1 Ω
      VSR1 (A28-26) - (A24-1) Below 1 Ω
      E2R1 (A28-25) - (A24-2) Below 1 Ω
      VCR2 (A28-35) - Body ground 10 kΩ or higher
      VSR2 (A28-34) - Body ground 10 kΩ or higher
      E2R2 (A28-33) - Body ground 10 kΩ or higher
      VCR1 (A28-27) - Body ground 10 kΩ or higher
      VSR1 (A28-26) - Body ground 10 kΩ or higher
      E2R1 (A28-25) - Body ground 10 kΩ or higher

    4. Reconnect the clutch stroke sensor connector.

    5. Reconnect the transmission control ECU connector.


    NG

    REPAIR OR REPLACE HARNESS OR CONNECTOR

    OK

    REPLACE TRANSMISSION CONTROL ECU ASSEMBLY