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.

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DTC No. Detection Item DTC Detection Condition Trouble Area MIL Memory
P2759 Torque Converter Clutch Pressure Control Solenoid Control Circuit Electrical (Shift Solenoid Valve SLU) 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

 Comes on DTC stored

MONITOR DESCRIPTION

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

WIRING DIAGRAM

A002BLLE34

PROCEDURE


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


    1. A0029G6C43
      *a

      Front view of wire harness connector

      (to ECM)

      Disconnect the ECM connector.

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

      Standard Resistance
      Tester Connection Condition Specified Condition
      C1-7 (SLU+) - C1-6 (SLU-) 20°C (68°F) 5.0 to 5.6 Ω
      C1-7 (SLU+) - Body ground and other terminals Always 10 kΩ or higher
      C1-6 (SLU-) - Body ground and other terminals Always 10 kΩ or higher
      Result
      Proceed to
      OK
      NG

    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
      C1-7 (SLU+) - C2-14 (SLU+) Always Below 1 Ω
      C1-6 (SLU-) - C2-5 (SLU-) Always Below 1 Ω
      C1-7 (SLU+) or C2-14 (SLU+) - Body ground and other terminals Always 10 kΩ or higher
      C1-6 (SLU-) or C2-5 (SLU-) - Body ground and other terminals Always 10 kΩ or higher
      Result
      Proceed to
      OK
      NG

    NG

    REPAIR OR REPLACE HARNESS OR CONNECTOR

    OK

  3. INSPECT TRANSMISSION WIRE (SLU)


    1. A002C2RC07
      *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
      Result
      Proceed to
      OK
      NG

    OK

    REPLACE WIRING HARNESS CONNECTOR Click here

    NG

  4. INSPECT SHIFT SOLENOID VALVE SLU


    1. A0029G2C02
      *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.
      Result
      Proceed to
      OK
      NG

    OK

    REPLACE TRANSMISSION WIRE Click here

    NG

    REPLACE SHIFT SOLENOID VALVE SLU Click here