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 cable with 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) | |
Lexus RX (RX 350L, RX450h) 2016-2025 Repair Manual > Can Communication System: DCM Communication Stop Mode
DESCRIPTION Detection Item Symptom Trouble Area DCM Communication Stop Mode Either condition is met:
"DCM" is not displayed on the CAN Bus Check screen of the Techstream.
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Communication system DTCs (DTCs that start with U) that correspond to "DCM Communication Stop Mode ...
Lexus RX (RX 350L, RX450h) 2016-2025 Repair Manual > Heated Steering Wheel System: Precaution
PRECAUTION PRECAUTION FOR DISCONNECTING CABLE FROM NEGATIVE BATTERY TERMINAL NOTICE: When disconnecting the cable from the negative (-) battery terminal, initialize the following systems after the cable is reconnected. System Name See Procedure Lane Control System Pre-collision Sys ...