Lexus RX (RX 350L, RX450h) 2016-2025 Repair Manual: Reassembly

NOTICE:

• Do not drop the power steering ECU assembly, strike it with tools or subject it to impacts.
• If the power steering ECU assembly is subjected to an impact, replace it with a new one.
• Do not pull the wire harness.
• Do not allow any moisture to come into contact with the power steering ECU assembly.
• Do not loosen any bolts not mentioned in the procedure.
• Do not allow any foreign matter to contaminate the power steering ECU assembly.

Installation

INSTALLATION PROCEDURE 1. ALIGN FRONT WHEELS FACING STRAIGHT AHEAD 2. INSTALL STEERING COLUMN ASSEMBLY NOTICE: Make sure that the wire harness is not interfering with the steering column assembly. (a) ...

Removal

REMOVAL CAUTION / NOTICE / HINT The necessary procedures (adjustment, calibration, initialization, or registration) that must be performed after parts are removed, installed, or replaced during the el ...

Other materials:

Lexus RX (RX 350L, RX450h) 2016-2025 Repair Manual > Dynamic Torque Control Awd System: System Description
SYSTEM DESCRIPTION GENERAL DESCRIPTION The dynamic torque control AWD system detects the driving conditions based on signals from each ECU, switches, the steering sensor, the wheel speed sensor, and the acceleration sensor. The system controls the current passing through the 4WD linear solenoid of t ...

Lexus RX (RX 350L, RX450h) 2016-2025 Repair Manual > Sfi System: Internal Control Module Random Access Memory (RAM) Error Data Memory Failure (P060444)
MONITOR DESCRIPTION The ECM continuously monitors its internal memory status. This self-check ensures that the ECM is functioning properly. The ECM memory status is diagnosed by internal mirroring of the main CPU and sub CPU to detect Random Access Memory (RAM) errors. If outputs from these CPUs are ...