CONTINUOUSLY VARIABLE TRANSAXLE SYSTEM, Diagnostic DTC:P2759

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

DESCRIPTION

The ECM uses the shift solenoid valve SLU to perform forward and reverse clutch control or lock-up clutch control.

C363316E01
Table 1. Text in Illustration

*1

Spool Valve

*2

Sleeve

*3

Solenoid Coil

-

-

*a

Hydraulic Pressure

*b

Current Flow to Solenoid

DTC Code

DTC Detection Condition

  1. Diagnosis Condition

  2. Malfunction Status

  3. Malfunction Time

  4. Other

Trouble Area

P2759

  1. The vehicle is being driven.

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

  3. 1 second or more

  4. 1-trip detection logic

  • Wire harness or connector

  • Continuously variable transaxle assembly (Shift solenoid valve SLU)

  • ECM

MONITOR DESCRIPTION

This DTC indicates an open or short in the shift solenoid valve SLU circuit. If there is an open or short in the shift solenoid valve SLU circuit, the ECM detects the problem, illuminates the MIL and stores this DTC.

WIRING DIAGRAM

C262369E91

CAUTION / NOTICE / HINT

Note:

  • Perform initialization when parts related to the continuously variable transaxle are replaced (Click here).

  • Check that no DTCs are stored after performing initialization (Click here).

PROCEDURE

  1. INSPECT TRANSMISSION WIRE (SHIFT SOLENOID VALVE SLU)

    1. C264597E32

      Disconnect the transmission wire connector.

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

      Standard Resistance

      Tester Connection

      Condition

      Specified Condition

      6 (SLU+) - 13 (SLU-)

      20°C (68°F)

      5.0 to 5.6 Ω

      6 (SLU+) - Body ground and other terminals

      Always

      10 kΩ or higher

      13 (SLU-) - Body ground and other terminals

      Always

      10 kΩ or higher
      Table 2. Text in Illustration

      *a

      Component without harness connected

      (Transmission Wire)

    REPLACE CONTINUOUSLY VARIABLE TRANSAXLE ASSEMBLYClick here

  2. CHECK HARNESS AND CONNECTOR (TRANSMISSION WIRE - ECM)

    U123369E02

    1. Disconnect the ECM connector.

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

      Standard Resistance

      Tester Connection

      Condition

      Specified Condition

      C111-43 (SLU+) - C111-42 (SLU-)

      20°C (68°F)

      5.0 to 5.6 Ω

      C111-43 (SLU+) - Body ground and other terminals

      Always

      10 kΩ or higher

      C111-42 (SLU-) - Body ground and other terminals

      Always

      10 kΩ or higher
      Table 3. Text in Illustration

      *a

      Front view of wire harness connector

      (to ECM)

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

  3. REPLACE ECM

    1. Replace the ECM (Click here).

    PERFORM INITIALIZATION

    (Click here)

  4. REPLACE CONTINUOUSLY VARIABLE TRANSAXLE ASSEMBLY

    1. Replace the continuously variable transaxle assembly (Click here).

    PERFORM INITIALIZATION

    (Click here)