Caution / Notice / Hint
WARNING: This page is about a different car, the 2025 Lexus NX 350, 2024 Lexus NX 350, 2023 Lexus NX 350, and 2022 Lexus NX 350. However, it is still accessible from the selected car via links, so may be relevant.
NOTE:
- Perform the universal trip to clear permanent DTCs.
Refer to DTC CHECK / CLEAR [11/2021 - 03/2023] , or refer to DTC CHECK / CLEAR [03/2023 - ]
- Perform registration and/or initialization when parts related to the automatic transaxle are replaced.
Refer to PRECAUTION [11/2021 - ]
- ACTIVE TEST
HINT:
Using the GTS to perform Active Tests 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 Tests early in troubleshooting is one way to save diagnostic time. Data List information can be displayed while performing Active Tests.
- Warm up the engine.
- Turn the ignition switch off.
- Connect the GTS to the DLC3.
- Turn the ignition switch to ON.
- Turn the GTS on.
- Enter the following menus: Powertrain / Transmission / Active Test.
- According to the display on the GTS, perform the Active Test.
Powertrain > Transmission > Active Test
Tester Display Measurement Item Control Range Diagnostic Note Activate the Lock Up Solenoid Operates the solenoid (SLU and SL) valve to control the automatic transaxle lock-up condition ON or OFF Can be used to check the operation of the solenoid (SLU and SL) valve. [Vehicle Condition]
- Vehicle speed: 80 km/h (50 mph) or more
- Gear: Highest gear
- Throttle position: Less than 20%
Powertrain > Transmission > Active Test
Tester Display Activate the Lock Up Solenoid HINT:
This test can be conducted when the vehicle speed is 80 km/h (50 mph) or more.
- Lightly depress the accelerator pedal and check that the engine speed does not change abruptly.
HINT:
- When changing the accelerator pedal opening angle while driving, if the engine speed does not change, lock-up is on.
- Slowly release the accelerator pedal in order to decelerate, but do not fully release the pedal. (Fully releasing the pedal will close the throttle valve and lock-up may be prohibited.)