LEMON Manuals: Even more car manuals for everyone
Home >> Lexus >> 2024 >> RC 350 Base, RWD >> Repair and Diagnosis >> External Pages >> Different car >> Section 6 (Automatic Transmission System (2GR-FSE,A760H) - Diagnostic Codes (1 Of 2)) >> AUTOMATIC TRANSMISSION SYSTEM (for 2GR-FSE) >> DTC P0751: Shift Solenoid "A" Performance (Shift Solenoid Valve S1) [09/2014 - 11/2017] >> Caution / Notice / Hint

Caution / Notice / Hint

WARNING: This page is about a different car, the 2017 Lexus RC 350, 2017 Lexus RC 300, 2016 Lexus RC 350, 2016 Lexus RC 300, and 2015 Lexus RC 350. However, it is still accessible from the selected car via links, so may be relevant.
NOTE:

HINT: 

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

  1. Perform the D Position Shift Test in Road Test.

    Refer to ROAD TEST [09/2014 - 11/2017]

  2. Turn the engine switch off.
  3. Perform step (1) again.
  4. Check for DTCs again.

    Refer to DTC CHECK / CLEAR [09/2014 - 11/2017]

  1. ACTIVE TEST 

    HINT: 

    Using the Techstream to perform Active Test allows relays, VSVs, actuators and other items to be operated without removing any parts. This non-intrusive functional inspection can be very useful because intermittent operation may be discovered before parts or wiring is disturbed. Performing Active Test early in troubleshooting is one way to save diagnostic time. Data List information can be displayed while performing Active Test.

    1. Warm up the engine.
    2. Turn the engine switch off.
    3. Connect the Techstream to the DLC3.
    4. Turn the engine switch on (IG).
    5. Turn the Techstream on.
    6. Enter the following menus: Powertrain / Engine and ECT / Active Test / Control the Shift Position.
    7. According to the display on the Techstream, perform the "Active Test".

      HINT: 

      While driving, the shift position can be forcibly changed with the Techstream. Comparing the shift position commanded by the Active Test with the actual shift position enables you to confirm the problem.

      Powertrain > Engine > Active Test 

      Tester Display Measurement Item Control Range Diagnostic Note
      Control the Shift Position Operate the shift solenoid valve and set each shift position.
      • Press "→" button: Shift up
      • Press "←" button: Shift down
      Possible to check operation of the shift solenoid valves.
      [Vehicle Condition]
      Vehicle speed: 50 km/h (31 mph) or less

      Powertrain > Engine > Active Test 

      Tester Display
      Control the Shift Position

      HINT: 

      • This test can be conducted when the vehicle speed is 50 km/h (31 mph) or less.
      • The 4th to 5th and 5th to 6th up-shifts must be performed with the accelerator pedal released.
      • The 6th to 5th and 5th to 4th down-shifts must be performed with the accelerator pedal released.
      • Do not operate the accelerator pedal for at least 2 seconds after shifting and do not shift successively.
      • The shift position commanded by the ECM is shown in the Data List (Shift Status) display on the Techstream.
      • The shift solenoid valve S1 is turned on/off normally with the shift lever in D:
        ECM commanded gear 1st 2nd 3rd 4th 5th 6th
        Shift solenoid valve S1 OFF ON ON ON ON ON