Click here

AUTOMATIC TRANSMISSION SYSTEM, Diagnostic DTC:P2759

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

DESCRIPTION

The TCM controls the lock-up solenoid using a predetermined duty ratio*, and performs lock-up and flex lock-up control.

Tip:

*: The duty ratio is the ratio of the current ON time (A) to the total of the current ON and OFF time (A + B).

Duty Ratio (%) = A / (A + B) x 100

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)

1. Diagnosis Condition 2. Malfunction Status 3. Malfunction Time 4. Other


  1. The vehicle is being driven.

  2. An open or short in the shift solenoid valve SLU circuit is detected.

  3. 1 second

  4. 1-trip detection logic

  • Shift solenoid valve SLU

  • Transmission wire

  • Harness and connector

  • TCM

 Comes on DTC stored
Click here

MONITOR DESCRIPTION

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

Table 1. *a Shift Solenoid Valve SLU *b Transmission Wire
Click here

WIRING DIAGRAM

Click here

CAUTION / NOTICE / HINT

Note:

Perform registration and/or initialization when parts related to the automatic transmission are replaced.

Click here

Tip:

After the repair, clear the DTCs and perform the following procedure to check that DTCs are not output.


  1. Perform the Lock-up Function in Road Test.

    Click here

  2. Check for DTCs again.

    Click here

Click here

PROCEDURE


  1. Click here

    CHECK HARNESS AND CONNECTOR (TRANSMISSION WIRE (SHIFT SOLENOID VALVE SLU) - TCM)


    1. B0067R2C40
      *a

      Rear view of wire harness connector

      (to TCM)

      Disconnect the F8 TCM connector.

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

      Standard Resistance
      Tester Connection Condition Specified Condition
      F8-2 (SLU+) - F8-8 (SLU-) 20°C (68°F) 5.0 to 5.6 Ω
      F8-2 (SLU+) or F8-8 (SLU-) - Body ground Always 10 kΩ or higher
      Result
      Proceed to
      OK
      NG

  2. Click here

    REPLACE TCM


    1. Replace the TCM.

      Click here

      Result
      Proceed to
      NEXT

  3. Click here

    CHECK HARNESS AND CONNECTOR (TRANSMISSION WIRE - TCM)


    1. Disconnect the F25 transmission wire connector.

    2. Disconnect the F8 TCM connector.

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

      Standard Resistance
      Tester Connection Condition Specified Condition
      F25-13 (SLU+) - F8-2 (SLU+) Always Below 1 Ω
      F25-14 (SLU-) - F8-8 (SLU-) Always Below 1 Ω
      F25-13 (SLU+) or F8-2 (SLU+) - Body ground Always 10 kΩ or higher
      F25-14 (SLU-) or F8-8 (SLU-) - Body ground Always 10 kΩ or higher
      Result
      Proceed to
      OK
      NG

    • OKClick here
    • NG

      REPAIR OR REPLACE HARNESS OR CONNECTOR (TRANSMISSION WIRE - TCM)

  4. Click here

    INSPECT SHIFT SOLENOID VALVE SLU


    1. B00662VC46
      *a

      Component without harness connected

      (Shift Solenoid Valve SLU)

      Remove the shift solenoid valve SLU.

      Click here

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

      Standard Resistance
      Tester Connection Condition Specified Condition
      Terminal 1 of the shift solenoid valve SLU - terminal 2 20°C (68°F) 5.0 to 5.6 Ω

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

      OK
      Valve moves and makes operating sound.
      Result
      Proceed to
      OK
      NG