AUTOMATIC TRANSAXLE SYSTEM, Diagnostic DTC:P275613

DTC Code DTC Name
P275613 Torque Converter Clutch Pressure Control Solenoid Control Circuit Open

DESCRIPTION

The ECM uses signals from the throttle position sensor, air-flow meter, input speed sensor NT, output speed sensor NC and crankshaft position sensor to monitor the engagement condition of the lock-up clutch.

A01W3SBE02
Text in Illustration
*a Spool Valve *b Sleeve
*c Solenoid Coil *d Hydraulic Pressure
*e Current - -

The ECM compares the engagement condition of the lock-up clutch with the lock-up schedule in the ECM memory to detect mechanical malfunctions of the shift solenoid valve SLU, transmission valve body assembly and torque converter clutch.

DTC No. DTC Detection Condition Trouble Area
P275613

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

  • Wiring Harness Connector

  • 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 there is a malfunction, illuminates the MIL and stores a DTC.

WIRING DIAGRAM

A01W0DEE53

CAUTION / NOTICE / HINT

Note

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

Tech Tips

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


  1. Perform the Lock-up Function inspection in Road Test Click here.

  2. Check for DTCs again Click here.

PROCEDURE


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


    1. Disconnect the D87 ECM connector.

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

      Standard Resistance
      Tester Connection Condition Specified Condition
      D87-3 (SLU+) - D87-2 (SLU-) 20°C (68°F) 5.0 to 5.6 Ω
      D87-3 (SLU+) - Body ground and other terminals Always 10 kΩ or higher
      D87-2 (SLU-) - Body ground and other terminals Always 10 kΩ or higher

    OK

    REPLACE ECM Click here

    NG

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


    1. Disconnect the D7 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
      D87-3 (SLU+) - D7-14 (SLU+) Always Below 1 Ω
      D87-2 (SLU-) - D7-5 (SLU-) Always Below 1 Ω
      D87-3 (SLU+) or D7-14 (SLU+) - Body ground and other terminals Always 10 kΩ or higher
      D87-2 (SLU-) or D7-5 (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. A01W4HYE02
      Text in Illustration
      *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

    OK

    REPLACE WIRING HARNESS CONNECTOR Click here

    NG

  4. INSPECT SHIFT SOLENOID VALVE SLU


    1. A01W2VBE46
      Text in Illustration
      *1 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. 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 an operating sound.

    OK

    REPLACE TRANSMISSION WIRE Click here

    NG

    REPLACE SHIFT SOLENOID VALVE SLU Click here