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 Click here.

DTC No. DTC Detection Condition Trouble Area
P2759 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

MONITOR DESCRIPTION

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

MONITOR STRATEGY

Related DTCs P2759: Shift solenoid valve SLU/Range check
Required sensors/Components Shift solenoid valve SLU
Frequency of operation Continuous
Duration 1 sec.
MIL operation Immediate
Sequence of operation None

TYPICAL ENABLING CONDITIONS

All
The monitor will run whenever the following DTCs are not present None
Ignition switch ON
Starter OFF
Condition (A)
Battery voltage 12 V or more
Condition (B)
Battery voltage 10 V or more and less than 12 V
Target current Less than 0.75 A
Condition (C)
Battery voltage 8 V or more
Target current 0.25 A or more

TYPICAL MALFUNCTION THRESHOLDS

Condition (A) and (B)
Output duty cycle 100% or more
Condition (C)
Output duty cycle 0% or less

COMPONENT OPERATING RANGE

Output duty cycle More than 3% and less than 100%

WIRING DIAGRAM

A01I10TE02

INSPECTION PROCEDURE

Note

Perform the universal trip to clear permanent DTCs Click here.

PROCEDURE


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


    1. A01I0O3E02
      Text in Illustration
      *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
      E26-7 (SLU+) - E26-6 (SLU-) 20°C (68°F) 5.0 to 5.6 Ω
      E26-7 (SLU+) - Body ground and other terminals Always 10 kΩ or higher
      E26-6 (SLU-) - Body ground and other terminals Always 10 kΩ or higher
      Result
      Result Proceed to
      OK A
      NG B

    B

    CHECK HARNESS AND CONNECTOR (ECM - WIRING HARNESS CONNECTOR) Click here

    A

    REPLACE ECM Click here

  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
      E26-7 (SLU+) - E8-14 (SLU+) Always Below 1 Ω
      E26-6 (SLU-) - E8-5 (SLU-) Always Below 1 Ω
      E26-7 (SLU+) or E8-14 (SLU+) - Body ground and other terminals Always 10 kΩ or higher
      E26-6 (SLU-) or E8-5 (SLU-) - Body ground and other terminals Always 10 kΩ or higher

    NG

    REPAIR OR REPLACE HARNESS OR CONNECTOR

    OK

  3. INSPECT TRANSMISSION WIRE (SLU)


    1. A01I1QKE36
      Text in Illustration
      *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
      Result Proceed to
      OK (When not using the engine support bridge) A
      OK (When using the engine support bridge) B
      NG C

    B

    REPLACE WIRING HARNESS CONNECTOR Click here

    C

    INSPECT SHIFT SOLENOID VALVE SLU Click here

    A

    REPLACE WIRING HARNESS CONNECTOR Click here

  4. INSPECT SHIFT SOLENOID VALVE SLU


    1. A01HYJZE01
      Text in Illustration
      *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
      Result Proceed to
      OK A
      NG (When not using the engine support bridge) B
      NG (When using the engine support bridge) C

    B

    REPLACE SHIFT SOLENOID VALVE SLU Click here

    C

    REPLACE SHIFT SOLENOID VALVE SLU Click here

    A

    REPLACE TRANSMISSION WIRE Click here