AUTOMATIC TRANSMISSION SYSTEM(for 1VD-FTV with DPF), Diagnostic DTC:P2759

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

DESCRIPTION

The amount of current flow to the solenoid is controlled by the ECM. During the lock-up operation, if the current increases, the lock-up hydraulic pressure increases.

A01WYX0E01
DTC Code DTC Detection Condition Trouble Area
P2759 An open or short is detected in the shift solenoid valve SLU circuit for 1 sec. or more while driving (1 trip detection logic).

  • Open or short in shift solenoid valve SLU circuit

  • Shift solenoid valve SLU

  • ECM

MONITOR DESCRIPTION

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

WIRING DIAGRAM

A01X7JJE50

PROCEDURE


  1. INSPECT NO. 1 TRANSMISSION WIRE (SHIFT SOLENOID VALVE SLU)


    1. A01XAP4E40
      Text in Illustration
      *a

      Component without harness connected

      (No. 1 Transmission Wire)

      Disconnect the No. 1 transmission wire connector.

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

      Standard Resistance
      Tester Connection Condition Specified Condition
      12 (SLU+) - 4 (SLU-) 20°C (68°F) 5.0 to 5.6 Ω
      12 (SLU+) - Body ground Always 10 kΩ or higher
      4 (SLU-) - Body ground Always 10 kΩ or higher

    NG

    INSPECT SHIFT SOLENOID VALVE SLU Click here

    OK

  2. CHECK HARNESS AND CONNECTOR (NO. 1 TRANSMISSION WIRE - ECM)

    A01X5G2E02
    Text in Illustration
    *1 for LHD
    *2 for RHD
    *a

    Front view of wire harness connector

    (to ECM)

    1. Disconnect the ECM connector.

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

      Standard Resistance
      for LHD
      Tester Connection Condition Specified Condition
      C45-15 (SLU+) - C45-14 (SLU-) 20°C (68°F) 5.0 to 5.6 Ω
      C45-15 (SLU+) - Body ground Always 10 kΩ or higher
      C45-14 (SLU-) - Body ground Always 10 kΩ or higher
      for RHD
      Tester Connection Condition Specified Condition
      C46-15 (SLU+) - C46-14 (SLU-) 20°C (68°F) 5.0 to 5.6 Ω
      C46-15 (SLU+) - Body ground Always 10 kΩ or higher
      C46-14 (SLU-) - Body ground Always 10 kΩ or higher

    OK

    REPLACE ECM Click here

    NG

    REPAIR OR REPLACE HARNESS OR CONNECTOR

  3. INSPECT SHIFT SOLENOID VALVE SLU


    1. B00201YE07
      Text in Illustration
      *a

      Component without harness connected

      (Shift Solenoid Valve SLU)

      Remove the 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. Apply 12 V battery voltage to the shift solenoid valve and check that the valve moves and makes an operating noise.

      OK
      Measurement Condition Specified Condition

      • Battery positive (+) with a 21 W bulb → Terminal 2

      • Battery negative (-) → Terminal 1

      		 Valve moves and makes an operating noise

    OK

    REPAIR OR REPLACE NO. 1 TRANSMISSION WIRE Click here

    NG

    REPLACE SHIFT SOLENOID VALVE SLU Click here