AUTOMATIC TRANSAXLE SYSTEM, Diagnostic DTC:P2759

DTC Code DTC Name
P2759 Torque Converter Clutch Pressure Control Solenoid Control Circuit Electrical (Shift Solenoid Valve SLU)

DESCRIPTION

Refer to the system description for DTC P2757 Click here.

DTC No. DTC Detection Condition Trouble Area
P2759 Open or short is detected in shift solenoid valve SLU circuit for 1 second or more while driving (1-trip detection logic).

  • Open or short in shift solenoid valve SLU circuit

  • Shift solenoid valve SLU

  • Wiring Harness Connector

  • ECM

MONITOR DESCRIPTION

When an open or short in a shift solenoid valve (SLU) circuit is detected, the ECM determines there is a malfunction. The ECM will turn on the MIL and store this DTC.

WIRING DIAGRAM

A01W1B2E39

PROCEDURE


  1. CHECK HARNESS AND CONNECTOR (SHIFT SOLENOID VALVE SLU CIRCUIT)


    1. A01W5HSE02
      Text in Illustration
      *a

      Front view of wire harness connector

      (to ECM)

      Disconnect the D70 ECM connector.

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

      Standard Resistance
      Tester Connection Condition Specified Condition
      D70-7 (SLU+) - D70-6 (SLU-) 20°C (68°F) 5.0 to 5.6 Ω
      D70-7 (SLU+) - Body ground and other terminals Always 10 kΩ or higher
      D70-6 (SLU-) - Body ground and other terminals Always 10 kΩ or higher

    OK

    REPLACE ECM Click here

    NG

  2. CHECK HARNESS AND CONNECTOR (ECM - WIRING HARNESS CONNECTOR)


    1. Disconnect the connector from the wiring harness connector.

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

      Standard Resistance
      Tester Connection Condition Specified Condition
      D70-7 (SLU+) - D7-14 (SLU+) Always Below 1 Ω
      D70-6 (SLU-) - D7-5 (SLU-) Always Below 1 Ω
      D70-7 (SLU+) or D7-14 (SLU+) - Body ground and other terminals Always 10 kΩ or higher
      D70-6 (SLU-) or D7-5 (SLU-) - Body ground and other terminals Always 10 kΩ or higher

    NG

    REPAIR OR REPLACE HARNESS OR CONNECTOR

    OK

  3. INSPECT TRANSMISSION WIRE (SLU)


    1. A01W55KE01
      Text in Illustration
      *a

      Component without harness connected

      (Transmission Wire)

      Remove the wiring harness connector from the automatic transaxle.

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

      Standard Resistance
      Tester Connection Condition Specified Condition
      A-11 (SLU+) - A-5 (SLU-) 20°C (68°F) 5.0 to 5.6 Ω
      A-11 (SLU+) - Body ground and other terminals Always 10 kΩ or higher
      A-5 (SLU-) - Body ground and other terminals Always 10 kΩ or higher

    OK

    REPLACE WIRING HARNESS CONNECTOR Click here

    NG

  4. INSPECT SHIFT SOLENOID VALVE SLU


    1. A01W2VBE46
      Text in Illustration
      *1 Shift Solenoid Valve SLU

      Remove shift solenoid valve SLU.

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

      Standard Resistance
      Tester Connection Condition Specified Condition
      1 - 2 20°C (68°F) 5.0 to 5.6 Ω

    3. Connect a battery positive (+) lead with a 21 W bulb to terminal 2 and a negative (-) lead to terminal 1 of the solenoid valve connector. Then check that the valve moves and makes an operating sound.

      OK
      Valve moves and makes an operating sound.

    OK

    REPLACE TRANSMISSION WIRE Click here

    NG

    REPLACE SHIFT SOLENOID VALVE SLU Click here