CONTINUOUSLY VARIABLE TRANSAXLE SYSTEM Transmission Control Switch Circuit

DTC Code DTC Name
Transmission Control Switch Circuit

DESCRIPTION

After moving the shift lever to M, it is possible to switch the shift range between "1" (M1 gear) and "7" (M7 gear) using the transmission control switch.

Moving the shift lever to "+" once raises the shift range by one, and moving the shift lever to "-" lowers the shift range by one.

WIRING DIAGRAM

C280948E04

CAUTION / NOTICE / HINT

Note:

  • Perform initialization when parts related to the continuously variable transaxle are replaced.

    Click here

  • Check that no DTCs are stored after performing initialization.

    Click here

  • Inspect the fuses for circuits related to this system before performing the following procedure.

PROCEDURE

  1. CHECK HARNESS AND CONNECTOR (BATTERY - TRANSMISSION CONTROL SWITCH)

    1. C251979C12

      *a

      Front view of wire harness connector

      (to Transmission Control Switch)

      Disconnect the transmission control switch connector.

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

      Standard Voltage

      Tester Connection

      Switch Condition

      Specified Condition

      G36-4 (IG) - Body ground

      Ignition switch ON

      11 to 14 V

      G36-4 (IG) - Body ground

      Ignition switch off

      Below 1 V

    Result

    Proceed to

    OK

    NG
    NG

    CHECK POWER SOURCE CIRCUIT

    OK

  2. CHECK HARNESS AND CONNECTOR (TRANSMISSION CONTROL SWITCH - BODY GROUND)

    1. C251979C13

      *a

      Front view of wire harness connector

      (to Transmission Control Switch)

      Disconnect the transmission control switch connector.

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

      Standard Resistance

      Tester Connection

      Condition

      Specified Condition

      G36-2 (E) - Body ground

      Always

      Below 1 Ω

    Result

    Proceed to

    OK

    NG
    NG

    REPAIR OR REPLACE HARNESS OR CONNECTOR

    OK

  3. INSPECT TRANSMISSION CONTROL SWITCH (TRANSMISSION FLOOR SHIFT ASSEMBLY)

    1. Disconnect the transmission control switch connector.

    2. C251980C65

      *a

      Component without harness connected

      (Transmission Control Switch)

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

      Standard Resistance

      Tester Connection

      Condition

      Specified Condition

      4 (IG) - 5 (S)

      Shift lever in M, "+" or "-"

      Below 1 Ω

      3 (SFTU) - 2 (E)

      Shift lever held in "+" (Up-shift)

      Below 1 Ω

      1 (SFTD) - 2 (E)

      Shift lever held in "-" (Down-shift)

      Below 1 Ω

      4 (IG) - 5 (S)

      Shift lever not in M, "+" or "-"

      10 kΩ or higher

      3 (SFTU) - 2 (E)

      Shift lever in M

      10 kΩ or higher

      1 (SFTD) - 2 (E)

      Shift lever in M

      10 kΩ or higher

    Result

    Proceed to

    OK

    NG
    NG

    REPLACE TRANSMISSION CONTROL SWITCH (TRANSMISSION FLOOR SHIFT ASSEMBLY)

    Click here

    OK

  4. CHECK HARNESS AND CONNECTOR (TRANSMISSION CONTROL SWITCH - ECM)

    1. C277060C02

      *a

      Front view of wire harness connector

      (to ECM)

      Disconnect the ECM connector.

    2. Turn the ignition switch to ON.

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

      Standard Voltage

      Tester Connection

      Condition

      Specified Condition

      A62-41 (S) - Body ground

      • Ignition switch ON

      • Shift lever in M, "+" or "-"

      11 to 14 V

      A62-41 (S) - Body ground

      • Ignition switch ON

      • Shift lever not in M, "+" or "-"

      Below 1 V

    4. Turn the ignition switch off.

    5. Disconnect the spiral cable sub-assembly connector.

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

      Standard Resistance

      Tester Connection

      Condition

      Specified Condition

      A62-42 (SFTU) - Body ground

      Shift lever held in "+" (Up-shift)

      Below 1 Ω

      A62-43 (SFTD) - Body ground

      Shift lever held in "-" (Down-shift)

      Below 1 Ω

      A62-42 (SFTU) - Body ground

      Shift lever in M

      10 kΩ or higher

      A62-43 (SFTD) - Body ground

      Shift lever in M

      10 kΩ or higher

    Result

    Proceed to

    OK

    NG
    NG

    REPAIR OR REPLACE HARNESS OR CONNECTOR

    OK

  5. REPLACE ECM

    1. Replace the ECM.

      Click here

      Result

      Proceed to

      NEXT
    NEXT

    PERFORM INITIALIZATION

    Click here