LEMON Manuals: Even more car manuals for everyone
Home >> Lexus >> 2017 >> IS 300 F Sport >> Repair and Diagnosis >> External Pages >> Different car >> Section 144 (Automatic Transmission System (Aa81E, For 2GR-FKS) - Diagnostic Codes (2 Of 4)) >> AUTOMATIC TRANSMISSION SYSTEM (for 2GR-FKS) >> DTC P0770-11: Shift Solenoid "E" Circuit Short to Ground [10/2017 - ] >> Procedure

DTC P0770-11: Shift Solenoid "E" Circuit Short to Ground [10/2017 - ]: Procedure

WARNING: This page does not describe the selected car, but rather 7 other vehicles, including the 2024 Lexus IS 350, 2023 Lexus IS 350, 2022 Lexus IS 350, 2021 Lexus IS 350, and 2020 Lexus IS 350. However, it is still accessible from the selected car via links, so may be relevant.
  1. CHECK HARNESS AND CONNECTOR (TRANSMISSION WIRE (SHIFT SOLENOID VALVE SR) - ECM) 
    1. Disconnect the F102 ECM connector.
    2. Measure the resistance according to the value(s) in the table below.

      Standard Resistance

      Tester Connection Condition Specified Condition
      F102-32 (SR) - Body ground 20°C (68°F) 11 to 15 Ω

      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 [10/2017 - ]

      Result

      Proceed to
      NEXT

    Result: 

    NEXT 

    PERFORM A/T CODE REGISTRATION. Refer to  REGISTRATION [10/2017 - ] 

  3. CHECK HARNESS AND CONNECTOR (TRANSMISSION WIRE - ECM) 
    1. Disconnect the F73 transmission wire connector.
    2. Disconnect the F102 ECM connector.
    3. Measure the resistance according to the value(s) in the table below.

      Standard Resistance

      Tester Connection Condition Specified Condition
      F73-18 (SR) or F102-32 (SR) - Body ground and other terminals Always 10 kΩ or higher

      Result

      Proceed to
      OK
      NG

    Result: 

    NG 

    REPAIR OR REPLACE HARNESS OR CONNECTOR 

    Result: 

    OK 

    See step  4

  4. INSPECT SHIFT SOLENOID VALVE SR 
    1. Remove the shift solenoid valve SR.
      GTY654436Courtesy of © TOYOTA, LICENSE AGREEMENT TMS1002
      *1 Shift Solenoid Valve SR

      Refer to DISASSEMBLY [04/2013 - ]

    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 shift solenoid valve connector, and a negative (-) lead to the shift solenoid valve 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: 

    OK 

    REPAIR OR REPLACE TRANSMISSION WIRE. Refer to  COMPONENTS [04/2013 - ] 

    Result: 

    NG 

    REPLACE SHIFT SOLENOID VALVE SR. Refer to  COMPONENTS [10/2016 - ]