PROBLEM SYMPTOMS TABLE
HINT:
Symptom | Suspected Area | Link |
---|---|---|
Heavy steering | Front tires (improperly inflated, unevenly worn) | |
Front wheel alignment (incorrect) | | |
Front suspension (Lower ball joint) | | |
Steering gear assembly | | |
Battery and power source circuit | | |
Power source voltage of power steering ECU assembly | | |
Power steering ECU assembly | | |
Vehicle condition (Steering wheel is turned from left to right repeatedly with vehicle stopped or heavy load is continuously applied to vehicle) | | |
Steering effort differs between right and left or is uneven | Rotation angle sensor initialization and torque sensor zero point calibration incomplete | |
Front tires (improperly inflated, unevenly worn) | | |
Front wheel alignment (incorrect) | | |
Front suspension (Lower ball joint) | | |
Steering gear assembly | | |
Torque sensor (Electric power steering column sub-assembly) | | |
Electric power steering column sub-assembly | | |
Power steering ECU assembly | | |
While driving, steering effort does not change in accordance with vehicle speed, or steering wheel does not return to its centered position easily | Skid control ECU (brake actuator assembly) | |
Speed sensor | | |
Torque sensor (Electric power steering column sub-assembly) | | |
Power steering ECU assembly | | |
CAN communication system | | |
Friction sounds occur when turning steering wheel during low speed driving | Power steering motor (Power steering ECU assembly) | |
Electric power steering column sub-assembly | | |
Spiral with cable sensor sub-assembly | | |
Steering column cover contacting steering wheel assembly | | |
High-pitched sound (squeaking) occurs when turning steering wheel slowly with vehicle stopped | Power steering motor (Power steering ECU assembly) | |
Steering wheel installation (incorrect) | | |
Steering wheel vibrates and noise occurs when turning steering wheel from lock to lock | Power steering motor (Power steering ECU assembly) | |
Electric power steering column sub-assembly | | |
Steering wheel installation (incorrect) | | |
EPS warning light remains on | EPS warning light circuit | |
Lexus RX (RX 350L, RX450h) 2016-2025 Repair Manual > Sfi System: Engine Difficult to Start
DESCRIPTION Problem Symptom Suspected Area Trouble Area
Engine speed fluctuation due to abnormal combustion
Idle speed too low or high
Strong engine vibration due to above symptoms
Ignition malfunction
Deviation in air fuel ratio (Excessive or insufficient intake air volume ...
Lexus RX (RX 350L, RX450h) 2016-2025 Repair Manual > Engine Coolant Temperature Sensor: Removal
REMOVAL CAUTION / NOTICE / HINT The necessary procedures (adjustment, calibration, initialization or registration) that must be performed after parts are removed and installed, or replaced during engine coolant temperature sensor removal/installation are shown below. Necessary Procedures After Parts ...