CONTINUOUSLY VARIABLE TRANSAXLE SYSTEM Shift Paddle Switch Circuit

DTC Code DTC Name
Shift Paddle Switch Circuit

DESCRIPTION

When the shift lever is in M, the shift range can be changed using the shift paddle switches. It is also possible to select the shift range when the vehicle is being driven with the shift lever in D by operating the shift paddle switches.

WIRING DIAGRAM

C328275E09

CAUTION / NOTICE / HINT

CAUTION:

Refer to the SRS precaution before troubleshooting (Click here).

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).

PROCEDURE

  1. READ VALUE USING GTS (SPORTS SHIFT UP SW AND SPORTS SHIFT DOWN SW)

    1. Connect the GTS to the DLC3.

    2. Turn the ignition switch to ON.

    3. Turn the GTS on.

    4. Enter the following menus: Powertrain / Engine and ECT / Data List / Primary.

    5. In accordance with the display on the GTS, read the Data List.

      Table 1. Engine and ECT

      Tester Display

      Measurement Item/Range

      Normal Condition

      Diagnostic Note

      Sports Shift Up SW

      Sport shift up switch status/

      OFF or ON

      • OFF: Shift lever not held in "+" (up-shift)

      • ON: Shift lever held in "+" (up-shift)

      -

      • OFF: "+" shift paddle not operated (up-shift)

      • ON: "+" shift paddle operated and held (up-shift)

      Sports Shift Down SW

      Sport shift down switch status/

      OFF or ON

      • OFF: Shift lever not held in "-" (down-shift)

      • ON: Shift lever held in "-" (down-shift)

      -

      • OFF: "-" shift paddle not operated (down-shift)

      • ON: "-" shift paddle operated and held (down-shift)
      Table 2. Result

      Result

      Proceed to

      Data display is within Normal Condition range

      A

      Data display is not within Normal Condition range

      B

    CHECK FOR INTERMITTENT PROBLEMS

    (Click here)

  2. INSPECT TRANSMISSION SHIFT SWITCH ASSEMBLY (SHIFT PADDLE SWITCH)

    U123379E02

    1. Disconnect the ECM connector.

    2. Disconnect the H48 shift lock control unit assembly (transmission control switch) connector.

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

      Standard Resistance

      Tester Connection

      Condition

      Specified Condition

      A76-42 (SFTU) - Body ground

      "+" shift paddle operated and held (up-shift)

      Below 2.5 Ω

      A76-42 (SFTU) - Body ground

      "+" shift paddle not operated (up-shift)

      1 MΩ or higher

      A76-43 (SFTD) - Body ground

      "-" shift paddle operated and held (down-shift)

      Below 2.5 Ω

      A76-43 (SFTD) - Body ground

      "-" shift paddle not operated (down-shift)

      1 MΩ or higher
      Table 3. Text in Illustration

      *a

      Front view of wire harness connector

      (to ECM)

    GO TO TRANSMISSION CONTROL SWITCH CIRCUIT

    (Click here)

  3. CHECK HARNESS AND CONNECTOR (SPIRAL CABLE SUB-ASSEMBLY - BODY GROUND)

    U184696E02

    1. Disconnect the spiral cable sub-assembly connector (Click here).

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

      Standard Resistance

      Tester Connection

      Condition

      Specified Condition

      H130-2 (ECC) - Body ground

      Always

      Below 1 Ω
      Table 4. Text in Illustration

      *a

      Front view of wire harness connector

      (to Spiral Cable Sub-assembly)

    REPAIR OR REPLACE HARNESS OR CONNECTOR (SPIRAL CABLE SUB-ASSEMBLY - BODY GROUND)

  4. CHECK HARNESS AND CONNECTOR (SPIRAL CABLE SUB-ASSEMBLY - ECM)

    1. Disconnect the A76 ECM connector.

    2. Disconnect the H130 spiral cable sub-assembly connector (Click here)

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

      Standard Resistance

      Tester Connection

      Condition

      Specified Condition

      A76-43 (SFTD) - H130-7 (SDN)

      Always

      Below 1 Ω

      A76-43 (SFTD) or H130-7 (SDN) - Body ground

      Always

      10 kΩ or higher

      A76-42 (SFTU) - H130-14 (SUP)

      Always

      Below 1 Ω

      A76-42 (SFTU) or H130-14 (SUP) - Body ground

      Always

      10 kΩ or higher

    REPAIR OR REPLACE HARNESS OR CONNECTOR (SPIRAL CABLE SUB-ASSEMBLY - ECM)

  5. CHECK HARNESS AND CONNECTOR (SPIRAL CABLE SUB-ASSEMBLY - SHIFT PADDLE SWITCH)

    1. U184710E02

      Disconnect the steering pad switch connector from the spiral cable sub-assembly.

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

      Standard Resistance

      Tester Connection

      Condition

      Specified Condition

      z30-6 (SUP) - z30-7 (ECC)

      "+" shift paddle operated and held (up-shift)

      Below 2.5 Ω

      z30-6 (SUP) - z30-7 (ECC)

      "+" shift paddle not operated (up-shift)

      1 MΩ or higher

      z30-12 (SDN) - z30-7 (ECC)

      "-" shift paddle operated and held (down-shift)

      Below 2.5 Ω

      z30-12 (SDN) - z30-7 (ECC)

      "-" shift paddle not operated (down-shift)

      1 MΩ or higher
      Table 5. Text in Illustration

      *a

      Front view of wire harness connector

      (to Spiral Cable Sub-assembly)

    INSPECT SHIFT PADDLE SWITCH LH (TRANSMISSION SHIFT SWITCH ASSEMBLY)Click here

  6. INSPECT SPIRAL CABLE SUB-ASSEMBLY

    1. Inspect the spiral cable sub-assembly (Click here).

    REPLACE SPIRAL CABLE SUB-ASSEMBLY

    (Click here)

  7. REPLACE ECM

    1. Replace the ECM (Click here).

    PERFORM INITIALIZATION

    (Click here)

  8. INSPECT SHIFT PADDLE SWITCH LH (TRANSMISSION SHIFT SWITCH ASSEMBLY)

    1. C279489E08

      Disconnect the connector from the shift paddle switch LH (Click here).

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

      Standard Resistance

      Tester Connection

      Condition

      Specified Condition

      SFTD - ECC

      "-" shift paddle operated and held (down-shift)

      Below 2.5 Ω

      SFTD - ECC

      "-" shift paddle not operated (down-shift)

      1 MΩ or higher

      SFTD - ECC1

      "-" shift paddle operated and held (down-shift)

      Below 2.5 Ω

      SFTD - ECC1

      "-" shift paddle not operated (down-shift)

      1 MΩ or higher
      Table 6. Text in Illustration

      *a

      Component without harness connected

      (Shift Paddle Switch LH)

    REPLACE SHIFT PADDLE SWITCH LH (TRANSMISSION SHIFT SWITCH ASSEMBLY)

    (Click here)

  9. INSPECT SHIFT PADDLE SWITCH RH (TRANSMISSION SHIFT SWITCH ASSEMBLY)

    1. C279490E07

      Disconnect the connector from the shift paddle switch RH (Click here).

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

      Standard Resistance

      Tester Connection

      Condition

      Specified Condition

      SFTU - ECC1

      "+" shift paddle operated and held (up-shift)

      Below 2.5 Ω

      SFTU - ECC1

      "+" shift paddle not operated (up-shift)

      1 MΩ or higher
      Table 7. Text in Illustration

      *a

      Component without harness connected

      (Shift Paddle Switch RH)

    REPLACE SHIFT PADDLE SWITCH RH (TRANSMISSION SHIFT SWITCH ASSEMBLY)

    (Click here)

  10. INSPECT NO. 1 SWITCH WIRE

    C279491E09

    1. Disconnect the No. 1 switch wire connector (Click here).

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

      Standard Resistance

      Tester Connection

      Condition

      Specified Condition

      SFTD - ECC

      "-" shift paddle operated and held (down-shift)

      Below 2.5 Ω

      SFTU - ECC

      "+" shift paddle operated and held (up-shift)

      Below 2.5 Ω

      SFTD - ECC

      "-" shift paddle not operated (down-shift)

      1 MΩ or higher

      SFTU - ECC

      "+" shift paddle not operated (up-shift)

      1 MΩ or higher
      Table 8. Text in Illustration

      *a

      Component without harness connected

      (No. 1 Switch Wire)

    REPLACE STEERING PAD SWITCH ASSEMBLY

    (Click here)

    REPLACE NO. 1 SWITCH WIRE

    (Click here)