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Home >> Toyota >> 2019 >> Sienna Limited, AWD >> Repair and Diagnosis >> External Pages >> Different variant/trim >> Section 5 (Automatic Transaxle System [UA80E] - Diagnostic Codes (1 Of 3)) >> Automatic Transaxle System >> DTC P0745-12: Pressure Control Solenoid "A" Circuit Short to Battery; DTC P0745-14: Pressure Control Solenoid "A" Circuit Short to Ground or Open [08/2016 - ] >> Procedure

DTC P0745-12: Pressure Control Solenoid "A" Circuit Short to Battery; DTC P0745-14: Pressure Control Solenoid "A" Circuit Short to Ground or Open [08/2016 - ]: Procedure

WARNING: This page is about a different variant/trim than selected.
  1. CHECK HARNESS AND TRANSMISSION WIRE (TRANSMISSION WIRE (SHIFT SOLENOID VALVE SL1) - ECM) 
    1. Disconnect the B67 ECM connector.
    2. Measure the resistance according to the value(s) in the table below.

      Standard Resistance

      Tester Connection Condition Specified Condition
      B67-12 (SL1+) - B67-13 (SL1-) 20°C (68°F) 5.0 to 5.6 Ω
      B67-12 (SL1+) or B67-13 (SL1-) - Body ground and other terminals Always 10 kΩ or higher

      Result

      Proceed to
      OK
      NG

    Result: 

    NG 

    See step  3

    Result: 

    OK 

    See step  2

  2. REPLACE ECM 
    1. Replace the ECM.

      Refer to COMPONENTS [08/2016 - ]

      Result

      Proceed to
      NEXT

    Result: 

    NEXT 

    PERFORM A/T CODE REGISTRATION. Refer to  REGISTRATION [08/2016 - ] 

  3. CHECK HARNESS AND CONNECTOR (TRANSMISSION WIRE - ECM) 
    1. Disconnect the B65 transmission wire connector.
    2. Disconnect the B67 ECM connector.
    3. Measure the resistance according to the value(s) in the table below.

      Standard Resistance

      Tester Connection Condition Specified Condition
      B65-17 (SL1+) - B67-12 (SL1+) Always Below 1 Ω
      B65-16 (SL1-) - B67-13 (SL1-) Always Below 1 Ω
      B65-17 (SL1+) or B67-12 (SL1+) - Body ground and other terminals Always 10 kΩ or higher
      B65-16 (SL1-) or B67-13 (SL1-) - Body ground and other terminals Always 10 kΩ or higher

      Result

      Proceed to
      OK
      NG

    Result: 

    NG 

    REPAIR OR REPLACE HARNESS OR CONNECTOR (TRANSMISSION WIRE - ECM) 

    Result: 

    OK 

    See step  4

  4. INSPECT SHIFT SOLENOID VALVE SL1 
    1. Remove the shift solenoid valve SL1.
      GTY704733Courtesy of © TOYOTA, LICENSE AGREEMENT TMS1002
      *a Component without harness connected
      (Shift Solenoid Valve SL1)

      Refer to DISASSEMBLY [08/2016 - ]

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

      Standard Resistance

      Tester Connection Condition Specified Condition
      Shift solenoid valve SL1 connector terminal 1 - terminal 2 20°C (68°F) 5.0 to 5.6 Ω
    3. Connect a positive (+) lead from the battery to terminal 1 and a negative (-) lead with a 21 W bulb to terminal 2 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 

    REPAIR OR REPLACE TRANSMISSION WIRE. Refer to  COMPONENTS [08/2016 - ] 

    Result: 

    NG 

    REPLACE SHIFT SOLENOID VALVE SL1. Refer to  COMPONENTS [08/2016 - ]