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Home >> Lexus >> 2017 >> IS 300 F Sport >> Repair and Diagnosis >> External Pages >> Different car >> Section 105 (Automatic Transmission System (Aa80E) - Diagnostic Codes (2 Of 2) & Circuit Tests) >> Automatic Transmission System >> DTC P0796: Pressure Control Solenoid "C" Performance (Shift Solenoid Valve SL3) [11/2021 - ] >> Procedure

DTC P0796: Pressure Control Solenoid "C" Performance (Shift Solenoid Valve SL3) [11/2021 - ]: Procedure

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  1. CHECK DTC OUTPUT 
    1. Connect the Techstream to the DLC3.
    2. Turn the engine switch on (IG).
    3. Turn the Techstream on.
    4. Enter the following menus: Powertrain / ECT / Trouble Codes.

      Powertrain > ECT > Trouble Codes 

    5. Read the DTCs using the Techstream.

      Result

      Result Proceed to
      Only DTCs P0771, P0796 and P2714 are output A
      Only DTCs P0796 and P2714 are output B
      Only DTCs P0796, P2714 and P2808 are output C
      P0771, P0796, P2714, and other DTCs are output D

      HINT: 

      If any DTCs other than P0771, P0776 and P2714 are output, perform troubleshooting for those DTCs first.

    Result: 

    B 

    See step  8

    Result: 

    C 

    See step  9

    Result: 

    D 

    GO TO DTC CHART. Refer to  DIAGNOSTIC TROUBLE CODE CHART [11/2021 - ] 

    Result: 

    A 

    See step  2

  2. CLEAR DTC AND PERFORM STALL SPEED TEST 
    1. Clear the DTCs.

      HINT: 

      Write down the currently output DTCs before clearing them.

      Powertrain > ECT > Clear DTCs 

    2. Perform the stall speed test.

      Refer to MECHANICAL SYSTEM TESTS [11/2021 - ]

      Result

      Result Proceed to
      Stall speed test can be performed A
      Stall speed test cannot be performed B

    Result: 

    B 

    See step  7

    Result: 

    A 

    See step  3

  3. INSPECT SHIFT SOLENOID VALVE SR 
    1. Remove the shift solenoid valve SR.
      GTY469889Courtesy of © TOYOTA, LICENSE AGREEMENT TMS1002
      *a Shift Solenoid Valve SR

      Refer to DISASSEMBLY [11/2021 - ]

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

      Standard Resistance

      Tester Connection Condition Specified Condition
      Terminal of shift solenoid valve SR connector - Shift solenoid valve SR body 20°C (68°F) 11 to 15 Ω
    3. Connect a positive (+) lead from the battery to the terminal of the solenoid valve connector, and a negative (-) lead to the solenoid body. Check that the valve moves and makes an operating sound.

      OK

      Valve moves and makes an operating sound.

      Result

      Proceed to
      OK
      NG

    Result: 

    NG 

    REPLACE SHIFT SOLENOID VALVE SR. Refer to  COMPONENTS [11/2021 - ] 

    Result: 

    OK 

    See step  4

  4. INSPECT SHIFT SOLENOID VALVE SL3 
    1. Remove the shift solenoid valve SL3.
      GTY464572Courtesy of © TOYOTA, LICENSE AGREEMENT TMS1002
      *a Component without harness connected
      (Shift Solenoid Valve SL3)

      Refer to DISASSEMBLY [11/2021 - ]

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

      Standard Resistance

      Tester Connection Condition Specified Condition
      Terminal 1 of the shift solenoid valve SL3 - Terminal 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.

      Result

      Proceed to
      OK
      NG

    Result: 

    NG 

    REPLACE SHIFT SOLENOID VALVE SL3. Refer to  COMPONENTS [11/2021 - ] 

    Result: 

    OK 

    See step  5

  5. INSPECT TRANSMISSION VALVE BODY ASSEMBLY 
    1. Check the transmission valve body assembly.

      Refer to REMOVAL [11/2021 - ]

      OK

      There is no foreign matter on each valve and they operate smoothly.

      Result

      Proceed to
      OK
      NG

    Result: 

    NG 

    REPAIR OR REPLACE TRANSMISSION VALVE BODY ASSEMBLY. Refer to  COMPONENTS [11/2021 - ] 

    Result: 

    OK 

    See step  6

  6. INSPECT TORQUE CONVERTER ASSEMBLY 
    1. Check the torque converter assembly.

      Refer to INSPECTION [11/2021 - ]

      OK

      The torque converter operates normally.

      Result

      Proceed to
      OK
      NG

    Result: 

    OK 

    REPAIR OR REPLACE AUTOMATIC TRANSMISSION ASSEMBLY. Refer to  COMPONENTS [11/2021 - ] 

    Result: 

    NG 

    REPLACE TORQUE CONVERTER ASSEMBLY. Refer to  COMPONENTS [11/2021 - ] 

  7. INSPECT SHIFT SOLENOID VALVE SLT 
    1. Remove the shift solenoid valve SLT.
      GTY464572Courtesy of © TOYOTA, LICENSE AGREEMENT TMS1002
      *a Component without harness connected
      (Shift Solenoid Valve SLT)

      Refer to DISASSEMBLY [11/2021 - ]

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

      Standard Resistance

      Tester Connection Condition Specified Condition
      Terminal 1 of the shift solenoid valve SLT - terminal 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.

      Result

      Proceed to
      OK
      NG

    Result: 

    OK 

    See step  5

    Result: 

    NG 

    REPLACE SHIFT SOLENOID VALVE SLT. Refer to  COMPONENTS [11/2021 - ] 

  8. CLEAR DTC AND PERFORM STALL SPEED TEST 
    1. Clear the DTCs.

      Powertrain > ECT > Clear DTCs 

      HINT: 

      Write down the currently output DTCs before clearing them.

    2. Perform the stall speed test.

      Refer to MECHANICAL SYSTEM TESTS [11/2021 - ]

      Result

      Result Proceed to
      Stall speed test can be performed A
      Stall speed test cannot be performed B

    Result: 

    A 

    See step  4

    Result: 

    B 

    See step  7

  9. CLEAR DTC AND PERFORM STALL SPEED TEST 
    1. Clear the DTCs.

      Powertrain > ECT > Clear DTCs 

      HINT: 

      Write down the currently output DTCs before clearing them.

    2. Perform the stall speed test.

      Refer to MECHANICAL SYSTEM TESTS [11/2021 - ]

      Result

      Result Proceed to
      Stall speed test can be performed A
      Stall speed test cannot be performed B

    Result: 

    B 

    See step  7

    Result: 

    A 

    See step  10

  10. CLEAR THE DTC AND RUNNING TEST 
    1. Clear the DTCs.

      Powertrain > ECT > Clear DTCs 

      HINT: 

      Write down the currently output DTCs before clearing them.

    2. Start the engine, drive the vehicle and perform the inspection.

      Result

      Result Proceed to
      Only DTCs P0796 and P2714 are output A
      Only DTCs P0796, P2714 and P2808 are output B

    Result: 

    A 

    See step  4

    Result: 

    B 

    See step  11

  11. INSPECT SHIFT SOLENOID VALVE SL4 
    1. Remove the shift solenoid valve SL4.
      GTY464572Courtesy of © TOYOTA, LICENSE AGREEMENT TMS1002
      *a Component without harness connected
      (Shift Solenoid Valve SL4)

      Refer to DISASSEMBLY [11/2021 - ]

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

      Standard Resistance

      Tester Connection Condition Specified Condition
      Terminal 1 of the shift solenoid valve SL4 - terminal 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.

      Result

      Proceed to
      OK
      NG

    Result: 

    OK 

    See step  5

    Result: 

    NG 

    REPLACE SHIFT SOLENOID VALVE SL4. Refer to  COMPONENTS [11/2021 - ] 

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