AUTOMATIC TRANSAXLE SYSTEM Shift Paddle Switch Circuit

DESCRIPTION

Moving the shift lever to S enables gear selection. The driver can select the gear optionally by shifting the paddle to "+" or "-".

WIRING DIAGRAM

A011V3ME01

INSPECTION PROCEDURE

PROCEDURE

  1. READ VALUE USING TECHSTREAM (SPORT SHIFT SWITCH STATUS)

    1. Connect the Techstream to the DLC3.

    2. Turn the ignition switch to ON.

    3. Turn the Techstream on.

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

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

      Tester Display Measurement Item/Range Normal Condition Diagnostic Note
      Sports Shift Up SW

      Sport shift up switch status/

      ON or OFF

      • ON: Continuously pull to "+" (up-shift)

      • OFF: Release "+" (up-shift)

      		 -
      Sports Shift Down SW

      Sport shift down switch status/

      ON or OFF

      • ON: Continuously pull to "-" (down-shift)

      • OFF: Release "-" (down-shift)

      		 -
      Result
      Result Proceed to
      Data display is not within Normal Condition range A
      Data display is within Normal Condition range B
    B

    CHECK FOR INTERMITTENT PROBLEMS Click here

    A

  2. CHECK HARNESS AND CONNECTOR (SHIFT PADDLE SWITCH CIRCUIT)

    1. Disconnect the ECM connector.

      A011QN8E01

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

      Standard Resistance
      Tester Connection Switch Condition Specified Condition
      A25- 43 (SFTD) - Body ground

      Pull "-" continuously

      (Down-shift)

      		 Below 1 Ω
      Release 10 kΩ or higher
      A25-42 (SFTU) - Body ground

      Pull "+" continuously

      (Up-shift)

      		 Below 1 Ω
      Release 10 kΩ or higher
      Text in Illustration
      *a

      Front view of wire harness connector

      (to ECM)
    NG

    CHECK HARNESS AND CONNECTOR (SPIRAL CABLE - BODY GROUND) Click here

    OK

    GO TO TRANSMISSION CONTROL SWITCH CIRCUIT Click here

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

    1. Disconnect the negative (-) terminal cable from the battery.

    2. Wait for at least 90 seconds.

    3. Remove the steering wheel assembly.

    4. Remove the steering column cover.

    5. Disconnect the spiral cable connector.

      A011TEPE01

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

      Standard Resistance
      Tester Connection Condition Specified Condition
      I28-2 (ECC) - Body ground Always Below 1 Ω
      Text in Illustration
      *a

      Front view of wire harness connector

      (to Spiral Cable Sub-assembly)
    NG

    REPAIR OR REPLACE HARNESS OR CONNECTOR

    OK

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

    1. Disconnect the ECM connector.

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

      Standard Resistance
      Tester Connection Switch Condition Specified Condition
      A25-43 (SFTD) - I28-7 (SDN) Always Below 1 Ω
      A25-43 (SFTD) or I28-7 (SDN) - Body ground Always 10 kΩ or higher
      A25-42 (SFTU) - I28-14 (SUP) Always Below 1 Ω
      A25-42 (SFTU) or I28-14 (SUP) - Body ground Always 10 kΩ or higher
    NG

    REPAIR OR REPLACE HARNESS OR CONNECTOR

    OK

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

    1. Remove the horn button assembly.

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

    3. Measure the resistance according to the value(s) in the table below when the shift paddle switch is moved to each position.

      A011R12E02
      Standard Resistance
      Tester Connection Switch Condition Specified Condition
      z3-6 (SUP) - z3-7 (ECC)

      Pull "+" continuously

      (Up-shift)

      		 Below 1 Ω
      Release 10 kΩ or higher
      z3-12 (SDN) - z3-7 (ECC)

      Pull "-" continuously

      (Down-shift)

      		 Below 1 Ω
      Release 10 kΩ or higher
      Text in Illustration
      *a

      Front view of wire harness connector

      (to Spiral Cable Sub-assembly)
    NG

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

    OK

  6. INSPECT SPIRAL CABLE WITH SENSOR SUB-ASSEMBLY

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

      A011UOLE02

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

      Standard Resistance
      Tester Connection Condition Specified Condition
      z3-7 (ECC) - I28-2 (ECC) Always Below 3 Ω
      z3-6 (SUP) - I28-14 (SUP) Always Below 3 Ω
      z3-12 (SDN) - I28-7 (SDN) Always Below 3 Ω
      z3-7 (ECC) or I28-2 (ECC) - All other terminals Always 10 kΩ or higher
      z3-6 (SUP) or I28-14 (SUP) - All other terminals Always 10 kΩ or higher
      z3-12 (SDN) or I28-7 (SDN) - All other terminals Always 10 kΩ or higher
      Text in Illustration
      *a

      Component without harness connected

      (Spiral Cable Sub-assembly)
      *b Steering Pad Switch Side
      *c Vehicle Side
    NG

    REPLACE SPIRAL CABLE WITH SENSOR SUB-ASSEMBLY Click here

    OK

    CHECK FOR INTERMITTENT PROBLEMS Click here

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

    1. Disconnect the connector from the transmission shift switch LH and RH.

      A011QMEE09

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

      Standard Resistance
      Transmission Shift Switch LH:
      Tester Connection Switch Condition Specified Condition
      C-3 (ECC) - C-2 (SFTD)

      Pull "-" continuously

      (Down-shift)

      		 Below 1 Ω
      Release 10 kΩ or higher
      C-4 (ECC1) - C-2 (SFTD)

      Pull "-" continuously

      (Down-shift)

      		 Below 1 Ω
      Release 10 kΩ or higher
      Transmission Shift Switch RH:
      Tester Connection Switch Condition Specified Condition
      B-3 (SFTU) - B-2 (ECC1)

      Pull "+" continuously

      (Up-shift)

      		 Below 1 Ω
      Release 10 kΩ or higher
      Text in Illustration
      *a

      Component without harness connected

      (Shift paddle switch LH)
      *b

      Component without harness connected

      (Shift paddle switch RH)
    NG

    REPLACE TRANSMISSION SHIFT SWITCH ASSEMBLY (SHIFT PADDLE SWITCH) Click here

    OK

  8. INSPECT NO. 1 SWITCH WIRE

    1. Connect the transmission shift switch LH and RH connector.

    2. Disconnect the No.1 switch wire from steering pad switch connector.

      A011V6LE02

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

      Standard Resistance
      Tester Connection Switch Condition Specified Condition
      A-3 (SFTD) - A-7 (ECC)

      Pull "-" continuously

      (Down-shift)

      		 Below 1 Ω
      Release 10 kΩ or higher
      A-2 (SFTU) - A-7 (ECC)

      Pull "+" continuously

      (Down-shift)

      		 Below 1 Ω
      Release 10 kΩ or higher
      Text in Illustration
      *a

      Front view of wire harness connector

      (to Steering Pad Switch Connector)
    NG

    REPLACE NO. 1 SWITCH WIRE Click here

    OK

    REPAIR OR REPLACE HARNESS OR CONNECTOR (NO. 1 SWITCH WIRE - SPIRAL CABLE SUB-ASSEMBLY)