AUTOMATIC TRANSAXLE SYSTEM, Diagnostic DTC:P271313

DTC Code DTC Name
P271313 Pressure Control Solenoid "D" Circuit Open

DESCRIPTION

The shift solenoid valve SLT controls the transmission line pressure for smooth transmission operation based on signals from the throttle position sensor and vehicle speed sensor. The ECM adjusts the current to the shift solenoid valve SLT to control hydraulic line pressure coming from the primary regulator valve. Appropriate line pressure assures smooth shifting with varying engine outputs.

DTC No. DTC Detection Condition Trouble Area
P271313

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


  1. The engine is running.

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

  3. 1 second

  4. 1-trip detection logic

  • Wiring harness connector

  • Open or short in shift solenoid valve SLT circuit

  • Shift solenoid valve SLT

  • ECM

MONITOR DESCRIPTION

When an open or short in the linear solenoid valve SLT circuit is detected, the ECM interprets this as a malfunction, illuminates the MIL and stores this DTC.

WIRING DIAGRAM

B000N9SE04

INSPECTION PROCEDURE

Note

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

Tech Tips

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


  1. Start the engine.

  2. Check for DTCs again Click here.

PROCEDURE


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


    1. Disconnect the E96 ECM connector.

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

      Standard Resistance
      Tester Connection Condition Specified Condition
      E96-1 (SLT+) - E96-31 (SLT-) 20°C (68°F) 5.0 to 5.6 Ω
      E96-1 (SLT+) - Body ground and other terminals Always 10 kΩ or higher
      E96-31 (SLT-) - Body ground and other terminals Always 10 kΩ or higher

    NG

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

    OK

    REPLACE ECM Click here

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


    1. Disconnect the E8 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
      E96-1 (SLT+) - E8-15 (SLT+) Always Below 1 Ω
      E96-31 (SLT-) - E8-7 (SLT-) Always Below 1 Ω
      E96-1 (SLT+) or E8-15 (SLT+) - Body ground and other terminals Always 10 kΩ or higher
      E96-31 (SLT-) or E8-7 (SLT-) - Body ground and other terminals Always 10 kΩ or higher

    NG

    REPAIR OR REPLACE HARNESS OR CONNECTOR

    OK

  3. INSPECT TRANSMISSION WIRE (SLT)


    1. B000K87E07
      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-12 (SLT+) - A-7 (SLT-) 20°C (68°F) 5.0 to 5.6 Ω
      A-12 (SLT+) - Body ground and other terminals Always 10 kΩ or higher
      A-7 (SLT-) - Body ground and other terminals Always 10 kΩ or higher

    NG

    INSPECT SHIFT SOLENOID VALVE SLT Click here

    OK

    REPLACE WIRING HARNESS CONNECTOR Click here

  4. INSPECT SHIFT SOLENOID VALVE SLT


    1. B000HN3E01
      Text in Illustration
      *1 Shift Solenoid Valve SLT

      Remove the shift solenoid valve SLT.

    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.

    NG

    REPLACE SHIFT SOLENOID VALVE SLT Click here

    OK

    REPLACE TRANSMISSION WIRE Click here