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AUTOMATIC TRANSMISSION SYSTEM (for 1GR-FE), Diagnostic DTC:P2716

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DTC Code DTC Name
P2716 Pressure Control Solenoid "D" Electrical (Shift Solenoid Valve SLT)
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DESCRIPTION

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

DTC Code DTC Detection Condition Trouble Area
P2716 An open or short is detected in the shift solenoid valve SLT circuit for 1 sec. or more while driving (1 trip detection logic).

  • Open or short in shift solenoid valve SLT circuit

  • Shift solenoid valve SLT

  • ECM
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MONITOR DESCRIPTION

When an open or short in the shift solenoid valve SLT circuit is detected, the ECM interprets this as a fault. The ECM will turn on the MIL and store the DTC.

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WIRING DIAGRAM

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INSPECTION PROCEDURE

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PROCEDURE


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    INSPECT TRANSMISSION WIRE (SHIFT SOLENOID VALVE SLT)


    1. A015739E66

      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
      14 (SLT+) - 6 (SLT-) 20°C (68°F) 5.0 to 5.6 Ω
      14 (SLT+) - Body ground Always 10 kΩ or higher
      6 (SLT-) - Body ground Always 10 kΩ or higher
      Table 1. Text in Illustration
      *a

      Component without harness connected

      (Transmission Wire)

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    CHECK HARNESS AND CONNECTOR (TRANSMISSION WIRE - ECM)


    1. A015CW9E81

      Disconnect the ECM connector.

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

      Standard Resistance
      Tester Connection Condition Specified Condition
      C45-9 (SLT+) - C45-8 (SLT-) 20°C (68°F) 5.0 to 5.6 Ω
      C45-9 (SLT+) - Body ground Always 10 kΩ or higher
      C45-8 (SLT-) - Body ground Always 10 kΩ or higher
      Table 2. Text in Illustration
      *a

      Front view of wire harness connector

      (to ECM)

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    INSPECT SHIFT SOLENOID VALVE SLT


    1. A0155DIE05

      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. 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 2

      • Battery negative (-) → Terminal 1

      		 Valve moves and makes an operating noise
      Table 3. Text in Illustration
      *a

      Component without harness connected

      (Shift Solenoid Valve SLT)

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    REPAIR OR REPLACE TRANSMISSION WIREClick here

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    REPLACE ECMClick here

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    REPAIR OR REPLACE HARNESS OR CONNECTOR

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    REPLACE SHIFT SOLENOID VALVE SLTClick here