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 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)

An open or short is detected in the 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 turn on the MIL and store the DTC.

WIRING DIAGRAM

C239277E25

CAUTION / NOTICE / HINT

Note:

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

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PROCEDURE

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

    1. C267934C06

      *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

      B77-7 (SLU+) - B77-6 (SLU-)

      20°C (68°F)

      5.0 to 5.6 Ω

      B77-7 (SLU+) - Body ground and other terminals

      Always

      10 kΩ or higher

      B77-6 (SLU-) - Body ground and other terminals

      Always

      10 kΩ or higher

    Result

    Proceed to

    OK

    NG
    OK

    REPLACE ECM

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    NG

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

    1. Disconnect the B78 wiring harness connector.

    2. Disconnect the B77 ECM connector.

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

      Standard Resistance

      Tester Connection

      Condition

      Specified Condition

      B78-14 (SLU+) - B77-7 (SLU+)

      Always

      Below 1 Ω

      B78-5 (SLU-) - B77-6 (SLU-)

      Always

      Below 1 Ω

      B78-14 (SLU+) or B77-7 (SLU+) - Body ground and other terminals

      Always

      10 kΩ or higher

      B78-5 (SLU-) or B77-6 (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 (SHIFT SOLENOID VALVE SLU)

    1. C226545C07

      *a

      Component without harness connected

      (Transmission Wire)

      Remove the wiring harness connector.

    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 hereClick here

    NG

  4. INSPECT SHIFT SOLENOID VALVE SLU

    1. C197715C14

      *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. 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 1

      • Battery negative (-) → Terminal 2

      Valve moves and makes an operating noise

    Result

    Proceed to

    OK

    NG
    OK

    REPLACE TRANSMISSION WIRE

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    NG

    REPLACE SHIFT SOLENOID VALVE SLU

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